diff --git a/llvm/docs/Atomics.rst b/llvm/docs/Atomics.rst
--- a/llvm/docs/Atomics.rst
+++ b/llvm/docs/Atomics.rst
@@ -581,6 +581,13 @@
 systems were common, yet it doesn't support any sort of compare-and-swap
 operation.
 
+Some targets (like RISCV) support a ``+forced-atomics`` target feature, which
+enables the use of lock-free atomics even if LLVM is not aware of any specific
+OS support for them. In this case, the user is responsible for ensuring that
+necessary ``__sync_*`` implementations are available. Code using
+``+forced-atomics`` is ABI-incompatible with code not using the feature, if
+atomic variables cross the ABI boundary.
+
 In either of these cases, the Target in LLVM can claim support for atomics of an
 appropriate size, and then implement some subset of the operations via libcalls
 to a ``__sync_*`` function. Such functions *must* not use locks in their
diff --git a/llvm/lib/Target/RISCV/RISCV.td b/llvm/lib/Target/RISCV/RISCV.td
--- a/llvm/lib/Target/RISCV/RISCV.td
+++ b/llvm/lib/Target/RISCV/RISCV.td
@@ -481,6 +481,17 @@
                                    "SiFive 7-Series processors",
                                    [TuneNoDefaultUnroll]>;
 
+// Assume that lock-free native-width atomics are available, even if the target
+// and operating system combination would not usually provide them. The user
+// is responsible for providing any necessary __sync implementations. Code
+// built with this feature is not ABI-compatible with code built without this
+// feature, if atomic variables are exposed across the ABI boundary.
+def FeatureForcedAtomics : SubtargetFeature<
+    "forced-atomics", "HasForcedAtomics", "true",
+    "Assume that lock-free native-width atomics are available">;
+def HasAtomicLdSt
+    : Predicate<"Subtarget->hasStdExtA() || Subtarget->hasForcedAtomics()">;
+
 //===----------------------------------------------------------------------===//
 // Named operands for CSR instructions.
 //===----------------------------------------------------------------------===//
diff --git a/llvm/lib/Target/RISCV/RISCVISelLowering.cpp b/llvm/lib/Target/RISCV/RISCVISelLowering.cpp
--- a/llvm/lib/Target/RISCV/RISCVISelLowering.cpp
+++ b/llvm/lib/Target/RISCV/RISCVISelLowering.cpp
@@ -411,6 +411,8 @@
   if (Subtarget.hasStdExtA()) {
     setMaxAtomicSizeInBitsSupported(Subtarget.getXLen());
     setMinCmpXchgSizeInBits(32);
+  } else if (Subtarget.hasForcedAtomics()) {
+    setMaxAtomicSizeInBitsSupported(Subtarget.getXLen());
   } else {
     setMaxAtomicSizeInBitsSupported(0);
   }
@@ -929,6 +931,16 @@
     }
   }
 
+  if (Subtarget.hasForcedAtomics()) {
+    // Set atomic rmw/cas operations to expand to force __sync libcalls.
+    setOperationAction(
+        {ISD::ATOMIC_CMP_SWAP, ISD::ATOMIC_SWAP, ISD::ATOMIC_LOAD_ADD,
+         ISD::ATOMIC_LOAD_SUB, ISD::ATOMIC_LOAD_AND, ISD::ATOMIC_LOAD_OR,
+         ISD::ATOMIC_LOAD_XOR, ISD::ATOMIC_LOAD_NAND, ISD::ATOMIC_LOAD_MIN,
+         ISD::ATOMIC_LOAD_MAX, ISD::ATOMIC_LOAD_UMIN, ISD::ATOMIC_LOAD_UMAX},
+        XLenVT, Expand);
+  }
+
   // Function alignments.
   const Align FunctionAlignment(Subtarget.hasStdExtC() ? 2 : 4);
   setMinFunctionAlignment(FunctionAlignment);
@@ -12286,6 +12298,10 @@
   if (AI->isFloatingPointOperation())
     return AtomicExpansionKind::CmpXChg;
 
+  // Don't expand forced atomics, we want to have __sync libcalls instead.
+  if (Subtarget.hasForcedAtomics())
+    return AtomicExpansionKind::None;
+
   unsigned Size = AI->getType()->getPrimitiveSizeInBits();
   if (Size == 8 || Size == 16)
     return AtomicExpansionKind::MaskedIntrinsic;
@@ -12389,6 +12405,10 @@
 TargetLowering::AtomicExpansionKind
 RISCVTargetLowering::shouldExpandAtomicCmpXchgInIR(
     AtomicCmpXchgInst *CI) const {
+  // Don't expand forced atomics, we want to have __sync libcalls instead.
+  if (Subtarget.hasForcedAtomics())
+    return AtomicExpansionKind::None;
+
   unsigned Size = CI->getCompareOperand()->getType()->getPrimitiveSizeInBits();
   if (Size == 8 || Size == 16)
     return AtomicExpansionKind::MaskedIntrinsic;
diff --git a/llvm/lib/Target/RISCV/RISCVInstrInfoA.td b/llvm/lib/Target/RISCV/RISCVInstrInfoA.td
--- a/llvm/lib/Target/RISCV/RISCVInstrInfoA.td
+++ b/llvm/lib/Target/RISCV/RISCVInstrInfoA.td
@@ -105,20 +105,25 @@
 // Pseudo-instructions and codegen patterns
 //===----------------------------------------------------------------------===//
 
-let Predicates = [HasStdExtA] in {
-
-/// Atomic loads and stores
-
+// Atomic load/store are available under both +a and +force-atomics.
 // Fences will be inserted for atomic load/stores according to the logic in
 // RISCVTargetLowering::{emitLeadingFence,emitTrailingFence}.
+let Predicates = [HasAtomicLdSt] in {
+  defm : LdPat<atomic_load_8,  LB>;
+  defm : LdPat<atomic_load_16, LH>;
+  defm : LdPat<atomic_load_32, LW>;
+
+  defm : AtomicStPat<atomic_store_8,  SB, GPR>;
+  defm : AtomicStPat<atomic_store_16, SH, GPR>;
+  defm : AtomicStPat<atomic_store_32, SW, GPR>;
+}
 
-defm : LdPat<atomic_load_8,  LB>;
-defm : LdPat<atomic_load_16, LH>;
-defm : LdPat<atomic_load_32, LW>;
+let Predicates = [HasAtomicLdSt, IsRV64] in {
+  defm : LdPat<atomic_load_64, LD, i64>;
+  defm : AtomicStPat<atomic_store_64, SD, GPR, i64>;
+}
 
-defm : AtomicStPat<atomic_store_8,  SB, GPR>;
-defm : AtomicStPat<atomic_store_16, SH, GPR>;
-defm : AtomicStPat<atomic_store_32, SW, GPR>;
+let Predicates = [HasStdExtA] in {
 
 /// AMOs
 
@@ -304,13 +309,6 @@
 
 let Predicates = [HasStdExtA, IsRV64] in {
 
-/// 64-bit atomic loads and stores
-
-// Fences will be inserted for atomic load/stores according to the logic in
-// RISCVTargetLowering::{emitLeadingFence,emitTrailingFence}.
-defm : LdPat<atomic_load_64, LD, i64>;
-defm : AtomicStPat<atomic_store_64, SD, GPR, i64>;
-
 defm : AMOPat<"atomic_swap_64", "AMOSWAP_D">;
 defm : AMOPat<"atomic_load_add_64", "AMOADD_D">;
 defm : AMOPat<"atomic_load_and_64", "AMOAND_D">;
diff --git a/llvm/lib/Target/RISCV/RISCVSubtarget.h b/llvm/lib/Target/RISCV/RISCVSubtarget.h
--- a/llvm/lib/Target/RISCV/RISCVSubtarget.h
+++ b/llvm/lib/Target/RISCV/RISCVSubtarget.h
@@ -98,6 +98,7 @@
   bool EnableSaveRestore = false;
   bool EnableUnalignedScalarMem = false;
   bool HasLUIADDIFusion = false;
+  bool HasForcedAtomics = false;
   unsigned XLen = 32;
   unsigned ZvlLen = 0;
   MVT XLenVT = MVT::i32;
@@ -194,6 +195,7 @@
   bool enableSaveRestore() const { return EnableSaveRestore; }
   bool enableUnalignedScalarMem() const { return EnableUnalignedScalarMem; }
   bool hasLUIADDIFusion() const { return HasLUIADDIFusion; }
+  bool hasForcedAtomics() const { return HasForcedAtomics; }
   MVT getXLenVT() const { return XLenVT; }
   unsigned getXLen() const { return XLen; }
   unsigned getFLen() const {
diff --git a/llvm/test/CodeGen/RISCV/forced-atomics.ll b/llvm/test/CodeGen/RISCV/forced-atomics.ll
new file mode 100644
--- /dev/null
+++ b/llvm/test/CodeGen/RISCV/forced-atomics.ll
@@ -0,0 +1,3642 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc -mtriple=riscv32 < %s | FileCheck %s --check-prefixes=RV32,RV32-NO-ATOMIC
+; RUN: llc -mtriple=riscv32 -mattr=+forced-atomics < %s | FileCheck %s --check-prefixes=RV32,RV32-ATOMIC
+; RUN: llc -mtriple=riscv64 < %s | FileCheck %s --check-prefixes=RV64,RV64-NO-ATOMIC
+; RUN: llc -mtriple=riscv64 -mattr=+forced-atomics < %s | FileCheck %s --check-prefixes=RV64,RV64-ATOMIC
+
+define i8 @load8(ptr %p) nounwind {
+; RV32-NO-ATOMIC-LABEL: load8:
+; RV32-NO-ATOMIC:       # %bb.0:
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV32-NO-ATOMIC-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-NO-ATOMIC-NEXT:    li a1, 5
+; RV32-NO-ATOMIC-NEXT:    call __atomic_load_1@plt
+; RV32-NO-ATOMIC-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV32-NO-ATOMIC-NEXT:    ret
+;
+; RV32-ATOMIC-LABEL: load8:
+; RV32-ATOMIC:       # %bb.0:
+; RV32-ATOMIC-NEXT:    fence rw, rw
+; RV32-ATOMIC-NEXT:    lb a0, 0(a0)
+; RV32-ATOMIC-NEXT:    fence r, rw
+; RV32-ATOMIC-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: load8:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-NO-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    li a1, 5
+; RV64-NO-ATOMIC-NEXT:    call __atomic_load_1@plt
+; RV64-NO-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: load8:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    fence rw, rw
+; RV64-ATOMIC-NEXT:    lb a0, 0(a0)
+; RV64-ATOMIC-NEXT:    fence r, rw
+; RV64-ATOMIC-NEXT:    ret
+  %v = load atomic i8, ptr %p seq_cst, align 1
+  ret i8 %v
+}
+
+define void @store8(ptr %p) nounwind {
+; RV32-NO-ATOMIC-LABEL: store8:
+; RV32-NO-ATOMIC:       # %bb.0:
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV32-NO-ATOMIC-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-NO-ATOMIC-NEXT:    li a2, 5
+; RV32-NO-ATOMIC-NEXT:    li a1, 0
+; RV32-NO-ATOMIC-NEXT:    call __atomic_store_1@plt
+; RV32-NO-ATOMIC-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV32-NO-ATOMIC-NEXT:    ret
+;
+; RV32-ATOMIC-LABEL: store8:
+; RV32-ATOMIC:       # %bb.0:
+; RV32-ATOMIC-NEXT:    fence rw, w
+; RV32-ATOMIC-NEXT:    sb zero, 0(a0)
+; RV32-ATOMIC-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: store8:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-NO-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    li a2, 5
+; RV64-NO-ATOMIC-NEXT:    li a1, 0
+; RV64-NO-ATOMIC-NEXT:    call __atomic_store_1@plt
+; RV64-NO-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: store8:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    fence rw, w
+; RV64-ATOMIC-NEXT:    sb zero, 0(a0)
+; RV64-ATOMIC-NEXT:    ret
+  store atomic i8 0, ptr %p seq_cst, align 1
+  ret void
+}
+
+define i8 @rmw8(ptr %p) nounwind {
+; RV32-NO-ATOMIC-LABEL: rmw8:
+; RV32-NO-ATOMIC:       # %bb.0:
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV32-NO-ATOMIC-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-NO-ATOMIC-NEXT:    li a1, 1
+; RV32-NO-ATOMIC-NEXT:    li a2, 5
+; RV32-NO-ATOMIC-NEXT:    call __atomic_fetch_add_1@plt
+; RV32-NO-ATOMIC-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV32-NO-ATOMIC-NEXT:    ret
+;
+; RV32-ATOMIC-LABEL: rmw8:
+; RV32-ATOMIC:       # %bb.0:
+; RV32-ATOMIC-NEXT:    addi sp, sp, -16
+; RV32-ATOMIC-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-ATOMIC-NEXT:    li a1, 1
+; RV32-ATOMIC-NEXT:    call __sync_fetch_and_add_1@plt
+; RV32-ATOMIC-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-ATOMIC-NEXT:    addi sp, sp, 16
+; RV32-ATOMIC-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: rmw8:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-NO-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    li a1, 1
+; RV64-NO-ATOMIC-NEXT:    li a2, 5
+; RV64-NO-ATOMIC-NEXT:    call __atomic_fetch_add_1@plt
+; RV64-NO-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: rmw8:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    li a1, 1
+; RV64-ATOMIC-NEXT:    call __sync_fetch_and_add_1@plt
+; RV64-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-ATOMIC-NEXT:    ret
+  %v = atomicrmw add ptr %p, i8 1 seq_cst, align 1
+  ret i8 %v
+}
+
+define i8 @cmpxchg8(ptr %p) nounwind {
+; RV32-NO-ATOMIC-LABEL: cmpxchg8:
+; RV32-NO-ATOMIC:       # %bb.0:
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV32-NO-ATOMIC-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-NO-ATOMIC-NEXT:    sb zero, 11(sp)
+; RV32-NO-ATOMIC-NEXT:    addi a1, sp, 11
+; RV32-NO-ATOMIC-NEXT:    li a2, 1
+; RV32-NO-ATOMIC-NEXT:    li a3, 5
+; RV32-NO-ATOMIC-NEXT:    li a4, 5
+; RV32-NO-ATOMIC-NEXT:    call __atomic_compare_exchange_1@plt
+; RV32-NO-ATOMIC-NEXT:    lb a0, 11(sp)
+; RV32-NO-ATOMIC-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV32-NO-ATOMIC-NEXT:    ret
+;
+; RV32-ATOMIC-LABEL: cmpxchg8:
+; RV32-ATOMIC:       # %bb.0:
+; RV32-ATOMIC-NEXT:    addi sp, sp, -16
+; RV32-ATOMIC-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-ATOMIC-NEXT:    li a2, 1
+; RV32-ATOMIC-NEXT:    li a1, 0
+; RV32-ATOMIC-NEXT:    call __sync_val_compare_and_swap_1@plt
+; RV32-ATOMIC-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-ATOMIC-NEXT:    addi sp, sp, 16
+; RV32-ATOMIC-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: cmpxchg8:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-NO-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    sb zero, 7(sp)
+; RV64-NO-ATOMIC-NEXT:    addi a1, sp, 7
+; RV64-NO-ATOMIC-NEXT:    li a2, 1
+; RV64-NO-ATOMIC-NEXT:    li a3, 5
+; RV64-NO-ATOMIC-NEXT:    li a4, 5
+; RV64-NO-ATOMIC-NEXT:    call __atomic_compare_exchange_1@plt
+; RV64-NO-ATOMIC-NEXT:    lb a0, 7(sp)
+; RV64-NO-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: cmpxchg8:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    li a2, 1
+; RV64-ATOMIC-NEXT:    li a1, 0
+; RV64-ATOMIC-NEXT:    call __sync_val_compare_and_swap_1@plt
+; RV64-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-ATOMIC-NEXT:    ret
+  %res = cmpxchg ptr %p, i8 0, i8 1 seq_cst seq_cst
+  %res.0 = extractvalue { i8, i1 } %res, 0
+  ret i8 %res.0
+}
+
+define i16 @load16(ptr %p) nounwind {
+; RV32-NO-ATOMIC-LABEL: load16:
+; RV32-NO-ATOMIC:       # %bb.0:
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV32-NO-ATOMIC-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-NO-ATOMIC-NEXT:    li a1, 5
+; RV32-NO-ATOMIC-NEXT:    call __atomic_load_2@plt
+; RV32-NO-ATOMIC-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV32-NO-ATOMIC-NEXT:    ret
+;
+; RV32-ATOMIC-LABEL: load16:
+; RV32-ATOMIC:       # %bb.0:
+; RV32-ATOMIC-NEXT:    fence rw, rw
+; RV32-ATOMIC-NEXT:    lh a0, 0(a0)
+; RV32-ATOMIC-NEXT:    fence r, rw
+; RV32-ATOMIC-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: load16:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-NO-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    li a1, 5
+; RV64-NO-ATOMIC-NEXT:    call __atomic_load_2@plt
+; RV64-NO-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: load16:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    fence rw, rw
+; RV64-ATOMIC-NEXT:    lh a0, 0(a0)
+; RV64-ATOMIC-NEXT:    fence r, rw
+; RV64-ATOMIC-NEXT:    ret
+  %v = load atomic i16, ptr %p seq_cst, align 2
+  ret i16 %v
+}
+
+define void @store16(ptr %p) nounwind {
+; RV32-NO-ATOMIC-LABEL: store16:
+; RV32-NO-ATOMIC:       # %bb.0:
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV32-NO-ATOMIC-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-NO-ATOMIC-NEXT:    li a2, 5
+; RV32-NO-ATOMIC-NEXT:    li a1, 0
+; RV32-NO-ATOMIC-NEXT:    call __atomic_store_2@plt
+; RV32-NO-ATOMIC-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV32-NO-ATOMIC-NEXT:    ret
+;
+; RV32-ATOMIC-LABEL: store16:
+; RV32-ATOMIC:       # %bb.0:
+; RV32-ATOMIC-NEXT:    fence rw, w
+; RV32-ATOMIC-NEXT:    sh zero, 0(a0)
+; RV32-ATOMIC-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: store16:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-NO-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    li a2, 5
+; RV64-NO-ATOMIC-NEXT:    li a1, 0
+; RV64-NO-ATOMIC-NEXT:    call __atomic_store_2@plt
+; RV64-NO-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: store16:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    fence rw, w
+; RV64-ATOMIC-NEXT:    sh zero, 0(a0)
+; RV64-ATOMIC-NEXT:    ret
+  store atomic i16 0, ptr %p seq_cst, align 2
+  ret void
+}
+
+define i16 @rmw16(ptr %p) nounwind {
+; RV32-NO-ATOMIC-LABEL: rmw16:
+; RV32-NO-ATOMIC:       # %bb.0:
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV32-NO-ATOMIC-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-NO-ATOMIC-NEXT:    li a1, 1
+; RV32-NO-ATOMIC-NEXT:    li a2, 5
+; RV32-NO-ATOMIC-NEXT:    call __atomic_fetch_add_2@plt
+; RV32-NO-ATOMIC-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV32-NO-ATOMIC-NEXT:    ret
+;
+; RV32-ATOMIC-LABEL: rmw16:
+; RV32-ATOMIC:       # %bb.0:
+; RV32-ATOMIC-NEXT:    addi sp, sp, -16
+; RV32-ATOMIC-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-ATOMIC-NEXT:    li a1, 1
+; RV32-ATOMIC-NEXT:    call __sync_fetch_and_add_2@plt
+; RV32-ATOMIC-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-ATOMIC-NEXT:    addi sp, sp, 16
+; RV32-ATOMIC-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: rmw16:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-NO-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    li a1, 1
+; RV64-NO-ATOMIC-NEXT:    li a2, 5
+; RV64-NO-ATOMIC-NEXT:    call __atomic_fetch_add_2@plt
+; RV64-NO-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: rmw16:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    li a1, 1
+; RV64-ATOMIC-NEXT:    call __sync_fetch_and_add_2@plt
+; RV64-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-ATOMIC-NEXT:    ret
+  %v = atomicrmw add ptr %p, i16 1 seq_cst, align 2
+  ret i16 %v
+}
+
+define i16 @cmpxchg16(ptr %p) nounwind {
+; RV32-NO-ATOMIC-LABEL: cmpxchg16:
+; RV32-NO-ATOMIC:       # %bb.0:
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV32-NO-ATOMIC-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-NO-ATOMIC-NEXT:    sh zero, 10(sp)
+; RV32-NO-ATOMIC-NEXT:    addi a1, sp, 10
+; RV32-NO-ATOMIC-NEXT:    li a2, 1
+; RV32-NO-ATOMIC-NEXT:    li a3, 5
+; RV32-NO-ATOMIC-NEXT:    li a4, 5
+; RV32-NO-ATOMIC-NEXT:    call __atomic_compare_exchange_2@plt
+; RV32-NO-ATOMIC-NEXT:    lh a0, 10(sp)
+; RV32-NO-ATOMIC-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV32-NO-ATOMIC-NEXT:    ret
+;
+; RV32-ATOMIC-LABEL: cmpxchg16:
+; RV32-ATOMIC:       # %bb.0:
+; RV32-ATOMIC-NEXT:    addi sp, sp, -16
+; RV32-ATOMIC-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-ATOMIC-NEXT:    li a2, 1
+; RV32-ATOMIC-NEXT:    li a1, 0
+; RV32-ATOMIC-NEXT:    call __sync_val_compare_and_swap_2@plt
+; RV32-ATOMIC-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-ATOMIC-NEXT:    addi sp, sp, 16
+; RV32-ATOMIC-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: cmpxchg16:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-NO-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    sh zero, 6(sp)
+; RV64-NO-ATOMIC-NEXT:    addi a1, sp, 6
+; RV64-NO-ATOMIC-NEXT:    li a2, 1
+; RV64-NO-ATOMIC-NEXT:    li a3, 5
+; RV64-NO-ATOMIC-NEXT:    li a4, 5
+; RV64-NO-ATOMIC-NEXT:    call __atomic_compare_exchange_2@plt
+; RV64-NO-ATOMIC-NEXT:    lh a0, 6(sp)
+; RV64-NO-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: cmpxchg16:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    li a2, 1
+; RV64-ATOMIC-NEXT:    li a1, 0
+; RV64-ATOMIC-NEXT:    call __sync_val_compare_and_swap_2@plt
+; RV64-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-ATOMIC-NEXT:    ret
+  %res = cmpxchg ptr %p, i16 0, i16 1 seq_cst seq_cst
+  %res.0 = extractvalue { i16, i1 } %res, 0
+  ret i16 %res.0
+}
+
+define i32 @load32_unordered(ptr %p) nounwind {
+; RV32-NO-ATOMIC-LABEL: load32_unordered:
+; RV32-NO-ATOMIC:       # %bb.0:
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV32-NO-ATOMIC-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-NO-ATOMIC-NEXT:    li a1, 0
+; RV32-NO-ATOMIC-NEXT:    call __atomic_load_4@plt
+; RV32-NO-ATOMIC-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV32-NO-ATOMIC-NEXT:    ret
+;
+; RV32-ATOMIC-LABEL: load32_unordered:
+; RV32-ATOMIC:       # %bb.0:
+; RV32-ATOMIC-NEXT:    lw a0, 0(a0)
+; RV32-ATOMIC-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: load32_unordered:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-NO-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    li a1, 0
+; RV64-NO-ATOMIC-NEXT:    call __atomic_load_4@plt
+; RV64-NO-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: load32_unordered:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    lw a0, 0(a0)
+; RV64-ATOMIC-NEXT:    ret
+  %v = load atomic i32, ptr %p unordered, align 4
+  ret i32 %v
+}
+
+define i32 @load32_monotonic(ptr %p) nounwind {
+; RV32-NO-ATOMIC-LABEL: load32_monotonic:
+; RV32-NO-ATOMIC:       # %bb.0:
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV32-NO-ATOMIC-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-NO-ATOMIC-NEXT:    li a1, 0
+; RV32-NO-ATOMIC-NEXT:    call __atomic_load_4@plt
+; RV32-NO-ATOMIC-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV32-NO-ATOMIC-NEXT:    ret
+;
+; RV32-ATOMIC-LABEL: load32_monotonic:
+; RV32-ATOMIC:       # %bb.0:
+; RV32-ATOMIC-NEXT:    lw a0, 0(a0)
+; RV32-ATOMIC-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: load32_monotonic:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-NO-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    li a1, 0
+; RV64-NO-ATOMIC-NEXT:    call __atomic_load_4@plt
+; RV64-NO-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: load32_monotonic:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    lw a0, 0(a0)
+; RV64-ATOMIC-NEXT:    ret
+  %v = load atomic i32, ptr %p monotonic, align 4
+  ret i32 %v
+}
+
+define i32 @load32_acquire(ptr %p) nounwind {
+; RV32-NO-ATOMIC-LABEL: load32_acquire:
+; RV32-NO-ATOMIC:       # %bb.0:
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV32-NO-ATOMIC-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-NO-ATOMIC-NEXT:    li a1, 2
+; RV32-NO-ATOMIC-NEXT:    call __atomic_load_4@plt
+; RV32-NO-ATOMIC-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV32-NO-ATOMIC-NEXT:    ret
+;
+; RV32-ATOMIC-LABEL: load32_acquire:
+; RV32-ATOMIC:       # %bb.0:
+; RV32-ATOMIC-NEXT:    lw a0, 0(a0)
+; RV32-ATOMIC-NEXT:    fence r, rw
+; RV32-ATOMIC-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: load32_acquire:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-NO-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    li a1, 2
+; RV64-NO-ATOMIC-NEXT:    call __atomic_load_4@plt
+; RV64-NO-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: load32_acquire:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    lw a0, 0(a0)
+; RV64-ATOMIC-NEXT:    fence r, rw
+; RV64-ATOMIC-NEXT:    ret
+  %v = load atomic i32, ptr %p acquire, align 4
+  ret i32 %v
+}
+
+define i32 @load32_seq_cst(ptr %p) nounwind {
+; RV32-NO-ATOMIC-LABEL: load32_seq_cst:
+; RV32-NO-ATOMIC:       # %bb.0:
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV32-NO-ATOMIC-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-NO-ATOMIC-NEXT:    li a1, 5
+; RV32-NO-ATOMIC-NEXT:    call __atomic_load_4@plt
+; RV32-NO-ATOMIC-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV32-NO-ATOMIC-NEXT:    ret
+;
+; RV32-ATOMIC-LABEL: load32_seq_cst:
+; RV32-ATOMIC:       # %bb.0:
+; RV32-ATOMIC-NEXT:    fence rw, rw
+; RV32-ATOMIC-NEXT:    lw a0, 0(a0)
+; RV32-ATOMIC-NEXT:    fence r, rw
+; RV32-ATOMIC-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: load32_seq_cst:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-NO-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    li a1, 5
+; RV64-NO-ATOMIC-NEXT:    call __atomic_load_4@plt
+; RV64-NO-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: load32_seq_cst:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    fence rw, rw
+; RV64-ATOMIC-NEXT:    lw a0, 0(a0)
+; RV64-ATOMIC-NEXT:    fence r, rw
+; RV64-ATOMIC-NEXT:    ret
+  %v = load atomic i32, ptr %p seq_cst, align 4
+  ret i32 %v
+}
+
+define void @store32_unordered(ptr %p) nounwind {
+; RV32-NO-ATOMIC-LABEL: store32_unordered:
+; RV32-NO-ATOMIC:       # %bb.0:
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV32-NO-ATOMIC-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-NO-ATOMIC-NEXT:    li a1, 0
+; RV32-NO-ATOMIC-NEXT:    li a2, 0
+; RV32-NO-ATOMIC-NEXT:    call __atomic_store_4@plt
+; RV32-NO-ATOMIC-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV32-NO-ATOMIC-NEXT:    ret
+;
+; RV32-ATOMIC-LABEL: store32_unordered:
+; RV32-ATOMIC:       # %bb.0:
+; RV32-ATOMIC-NEXT:    sw zero, 0(a0)
+; RV32-ATOMIC-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: store32_unordered:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-NO-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    li a1, 0
+; RV64-NO-ATOMIC-NEXT:    li a2, 0
+; RV64-NO-ATOMIC-NEXT:    call __atomic_store_4@plt
+; RV64-NO-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: store32_unordered:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    sw zero, 0(a0)
+; RV64-ATOMIC-NEXT:    ret
+  store atomic i32 0, ptr %p unordered, align 4
+  ret void
+}
+
+define void @store32_monotonic(ptr %p) nounwind {
+; RV32-NO-ATOMIC-LABEL: store32_monotonic:
+; RV32-NO-ATOMIC:       # %bb.0:
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV32-NO-ATOMIC-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-NO-ATOMIC-NEXT:    li a1, 0
+; RV32-NO-ATOMIC-NEXT:    li a2, 0
+; RV32-NO-ATOMIC-NEXT:    call __atomic_store_4@plt
+; RV32-NO-ATOMIC-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV32-NO-ATOMIC-NEXT:    ret
+;
+; RV32-ATOMIC-LABEL: store32_monotonic:
+; RV32-ATOMIC:       # %bb.0:
+; RV32-ATOMIC-NEXT:    sw zero, 0(a0)
+; RV32-ATOMIC-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: store32_monotonic:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-NO-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    li a1, 0
+; RV64-NO-ATOMIC-NEXT:    li a2, 0
+; RV64-NO-ATOMIC-NEXT:    call __atomic_store_4@plt
+; RV64-NO-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: store32_monotonic:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    sw zero, 0(a0)
+; RV64-ATOMIC-NEXT:    ret
+  store atomic i32 0, ptr %p monotonic, align 4
+  ret void
+}
+
+define void @store32_release(ptr %p) nounwind {
+; RV32-NO-ATOMIC-LABEL: store32_release:
+; RV32-NO-ATOMIC:       # %bb.0:
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV32-NO-ATOMIC-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-NO-ATOMIC-NEXT:    li a2, 3
+; RV32-NO-ATOMIC-NEXT:    li a1, 0
+; RV32-NO-ATOMIC-NEXT:    call __atomic_store_4@plt
+; RV32-NO-ATOMIC-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV32-NO-ATOMIC-NEXT:    ret
+;
+; RV32-ATOMIC-LABEL: store32_release:
+; RV32-ATOMIC:       # %bb.0:
+; RV32-ATOMIC-NEXT:    fence rw, w
+; RV32-ATOMIC-NEXT:    sw zero, 0(a0)
+; RV32-ATOMIC-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: store32_release:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-NO-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    li a2, 3
+; RV64-NO-ATOMIC-NEXT:    li a1, 0
+; RV64-NO-ATOMIC-NEXT:    call __atomic_store_4@plt
+; RV64-NO-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: store32_release:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    fence rw, w
+; RV64-ATOMIC-NEXT:    sw zero, 0(a0)
+; RV64-ATOMIC-NEXT:    ret
+  store atomic i32 0, ptr %p release, align 4
+  ret void
+}
+
+define void @store32_seq_cst(ptr %p) nounwind {
+; RV32-NO-ATOMIC-LABEL: store32_seq_cst:
+; RV32-NO-ATOMIC:       # %bb.0:
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV32-NO-ATOMIC-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-NO-ATOMIC-NEXT:    li a2, 5
+; RV32-NO-ATOMIC-NEXT:    li a1, 0
+; RV32-NO-ATOMIC-NEXT:    call __atomic_store_4@plt
+; RV32-NO-ATOMIC-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV32-NO-ATOMIC-NEXT:    ret
+;
+; RV32-ATOMIC-LABEL: store32_seq_cst:
+; RV32-ATOMIC:       # %bb.0:
+; RV32-ATOMIC-NEXT:    fence rw, w
+; RV32-ATOMIC-NEXT:    sw zero, 0(a0)
+; RV32-ATOMIC-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: store32_seq_cst:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-NO-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    li a2, 5
+; RV64-NO-ATOMIC-NEXT:    li a1, 0
+; RV64-NO-ATOMIC-NEXT:    call __atomic_store_4@plt
+; RV64-NO-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: store32_seq_cst:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    fence rw, w
+; RV64-ATOMIC-NEXT:    sw zero, 0(a0)
+; RV64-ATOMIC-NEXT:    ret
+  store atomic i32 0, ptr %p seq_cst, align 4
+  ret void
+}
+
+define i32 @rmw32_add_monotonic(ptr %p) nounwind {
+; RV32-NO-ATOMIC-LABEL: rmw32_add_monotonic:
+; RV32-NO-ATOMIC:       # %bb.0:
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV32-NO-ATOMIC-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-NO-ATOMIC-NEXT:    li a1, 1
+; RV32-NO-ATOMIC-NEXT:    li a2, 0
+; RV32-NO-ATOMIC-NEXT:    call __atomic_fetch_add_4@plt
+; RV32-NO-ATOMIC-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV32-NO-ATOMIC-NEXT:    ret
+;
+; RV32-ATOMIC-LABEL: rmw32_add_monotonic:
+; RV32-ATOMIC:       # %bb.0:
+; RV32-ATOMIC-NEXT:    addi sp, sp, -16
+; RV32-ATOMIC-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-ATOMIC-NEXT:    li a1, 1
+; RV32-ATOMIC-NEXT:    call __sync_fetch_and_add_4@plt
+; RV32-ATOMIC-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-ATOMIC-NEXT:    addi sp, sp, 16
+; RV32-ATOMIC-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: rmw32_add_monotonic:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-NO-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    li a1, 1
+; RV64-NO-ATOMIC-NEXT:    li a2, 0
+; RV64-NO-ATOMIC-NEXT:    call __atomic_fetch_add_4@plt
+; RV64-NO-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: rmw32_add_monotonic:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    li a1, 1
+; RV64-ATOMIC-NEXT:    call __sync_fetch_and_add_4@plt
+; RV64-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-ATOMIC-NEXT:    ret
+  %v = atomicrmw add ptr %p, i32 1 monotonic, align 4
+  ret i32 %v
+}
+
+define i32 @rmw32_add_seq_cst(ptr %p) nounwind {
+; RV32-NO-ATOMIC-LABEL: rmw32_add_seq_cst:
+; RV32-NO-ATOMIC:       # %bb.0:
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV32-NO-ATOMIC-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-NO-ATOMIC-NEXT:    li a1, 1
+; RV32-NO-ATOMIC-NEXT:    li a2, 5
+; RV32-NO-ATOMIC-NEXT:    call __atomic_fetch_add_4@plt
+; RV32-NO-ATOMIC-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV32-NO-ATOMIC-NEXT:    ret
+;
+; RV32-ATOMIC-LABEL: rmw32_add_seq_cst:
+; RV32-ATOMIC:       # %bb.0:
+; RV32-ATOMIC-NEXT:    addi sp, sp, -16
+; RV32-ATOMIC-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-ATOMIC-NEXT:    li a1, 1
+; RV32-ATOMIC-NEXT:    call __sync_fetch_and_add_4@plt
+; RV32-ATOMIC-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-ATOMIC-NEXT:    addi sp, sp, 16
+; RV32-ATOMIC-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: rmw32_add_seq_cst:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-NO-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    li a1, 1
+; RV64-NO-ATOMIC-NEXT:    li a2, 5
+; RV64-NO-ATOMIC-NEXT:    call __atomic_fetch_add_4@plt
+; RV64-NO-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: rmw32_add_seq_cst:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    li a1, 1
+; RV64-ATOMIC-NEXT:    call __sync_fetch_and_add_4@plt
+; RV64-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-ATOMIC-NEXT:    ret
+  %v = atomicrmw add ptr %p, i32 1 seq_cst, align 4
+  ret i32 %v
+}
+
+define i32 @rmw32_sub_seq_cst(ptr %p) nounwind {
+; RV32-NO-ATOMIC-LABEL: rmw32_sub_seq_cst:
+; RV32-NO-ATOMIC:       # %bb.0:
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV32-NO-ATOMIC-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-NO-ATOMIC-NEXT:    li a1, 1
+; RV32-NO-ATOMIC-NEXT:    li a2, 5
+; RV32-NO-ATOMIC-NEXT:    call __atomic_fetch_sub_4@plt
+; RV32-NO-ATOMIC-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV32-NO-ATOMIC-NEXT:    ret
+;
+; RV32-ATOMIC-LABEL: rmw32_sub_seq_cst:
+; RV32-ATOMIC:       # %bb.0:
+; RV32-ATOMIC-NEXT:    addi sp, sp, -16
+; RV32-ATOMIC-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-ATOMIC-NEXT:    li a1, 1
+; RV32-ATOMIC-NEXT:    call __sync_fetch_and_sub_4@plt
+; RV32-ATOMIC-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-ATOMIC-NEXT:    addi sp, sp, 16
+; RV32-ATOMIC-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: rmw32_sub_seq_cst:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-NO-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    li a1, 1
+; RV64-NO-ATOMIC-NEXT:    li a2, 5
+; RV64-NO-ATOMIC-NEXT:    call __atomic_fetch_sub_4@plt
+; RV64-NO-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: rmw32_sub_seq_cst:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    li a1, 1
+; RV64-ATOMIC-NEXT:    call __sync_fetch_and_sub_4@plt
+; RV64-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-ATOMIC-NEXT:    ret
+  %v = atomicrmw sub ptr %p, i32 1 seq_cst, align 4
+  ret i32 %v
+}
+
+define i32 @rmw32_and_seq_cst(ptr %p) nounwind {
+; RV32-NO-ATOMIC-LABEL: rmw32_and_seq_cst:
+; RV32-NO-ATOMIC:       # %bb.0:
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV32-NO-ATOMIC-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-NO-ATOMIC-NEXT:    li a1, 1
+; RV32-NO-ATOMIC-NEXT:    li a2, 5
+; RV32-NO-ATOMIC-NEXT:    call __atomic_fetch_and_4@plt
+; RV32-NO-ATOMIC-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV32-NO-ATOMIC-NEXT:    ret
+;
+; RV32-ATOMIC-LABEL: rmw32_and_seq_cst:
+; RV32-ATOMIC:       # %bb.0:
+; RV32-ATOMIC-NEXT:    addi sp, sp, -16
+; RV32-ATOMIC-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-ATOMIC-NEXT:    li a1, 1
+; RV32-ATOMIC-NEXT:    call __sync_fetch_and_and_4@plt
+; RV32-ATOMIC-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-ATOMIC-NEXT:    addi sp, sp, 16
+; RV32-ATOMIC-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: rmw32_and_seq_cst:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-NO-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    li a1, 1
+; RV64-NO-ATOMIC-NEXT:    li a2, 5
+; RV64-NO-ATOMIC-NEXT:    call __atomic_fetch_and_4@plt
+; RV64-NO-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: rmw32_and_seq_cst:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    li a1, 1
+; RV64-ATOMIC-NEXT:    call __sync_fetch_and_and_4@plt
+; RV64-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-ATOMIC-NEXT:    ret
+  %v = atomicrmw and ptr %p, i32 1 seq_cst, align 4
+  ret i32 %v
+}
+
+define i32 @rmw32_nand_seq_cst(ptr %p) nounwind {
+; RV32-NO-ATOMIC-LABEL: rmw32_nand_seq_cst:
+; RV32-NO-ATOMIC:       # %bb.0:
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV32-NO-ATOMIC-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-NO-ATOMIC-NEXT:    li a1, 1
+; RV32-NO-ATOMIC-NEXT:    li a2, 5
+; RV32-NO-ATOMIC-NEXT:    call __atomic_fetch_nand_4@plt
+; RV32-NO-ATOMIC-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV32-NO-ATOMIC-NEXT:    ret
+;
+; RV32-ATOMIC-LABEL: rmw32_nand_seq_cst:
+; RV32-ATOMIC:       # %bb.0:
+; RV32-ATOMIC-NEXT:    addi sp, sp, -16
+; RV32-ATOMIC-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-ATOMIC-NEXT:    li a1, 1
+; RV32-ATOMIC-NEXT:    call __sync_fetch_and_nand_4@plt
+; RV32-ATOMIC-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-ATOMIC-NEXT:    addi sp, sp, 16
+; RV32-ATOMIC-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: rmw32_nand_seq_cst:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-NO-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    li a1, 1
+; RV64-NO-ATOMIC-NEXT:    li a2, 5
+; RV64-NO-ATOMIC-NEXT:    call __atomic_fetch_nand_4@plt
+; RV64-NO-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: rmw32_nand_seq_cst:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    li a1, 1
+; RV64-ATOMIC-NEXT:    call __sync_fetch_and_nand_4@plt
+; RV64-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-ATOMIC-NEXT:    ret
+  %v = atomicrmw nand ptr %p, i32 1 seq_cst, align 4
+  ret i32 %v
+}
+
+define i32 @rmw32_or_seq_cst(ptr %p) nounwind {
+; RV32-NO-ATOMIC-LABEL: rmw32_or_seq_cst:
+; RV32-NO-ATOMIC:       # %bb.0:
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV32-NO-ATOMIC-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-NO-ATOMIC-NEXT:    li a1, 1
+; RV32-NO-ATOMIC-NEXT:    li a2, 5
+; RV32-NO-ATOMIC-NEXT:    call __atomic_fetch_or_4@plt
+; RV32-NO-ATOMIC-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV32-NO-ATOMIC-NEXT:    ret
+;
+; RV32-ATOMIC-LABEL: rmw32_or_seq_cst:
+; RV32-ATOMIC:       # %bb.0:
+; RV32-ATOMIC-NEXT:    addi sp, sp, -16
+; RV32-ATOMIC-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-ATOMIC-NEXT:    li a1, 1
+; RV32-ATOMIC-NEXT:    call __sync_fetch_and_or_4@plt
+; RV32-ATOMIC-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-ATOMIC-NEXT:    addi sp, sp, 16
+; RV32-ATOMIC-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: rmw32_or_seq_cst:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-NO-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    li a1, 1
+; RV64-NO-ATOMIC-NEXT:    li a2, 5
+; RV64-NO-ATOMIC-NEXT:    call __atomic_fetch_or_4@plt
+; RV64-NO-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: rmw32_or_seq_cst:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    li a1, 1
+; RV64-ATOMIC-NEXT:    call __sync_fetch_and_or_4@plt
+; RV64-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-ATOMIC-NEXT:    ret
+  %v = atomicrmw or ptr %p, i32 1 seq_cst, align 4
+  ret i32 %v
+}
+
+define i32 @rmw32_xor_seq_cst(ptr %p) nounwind {
+; RV32-NO-ATOMIC-LABEL: rmw32_xor_seq_cst:
+; RV32-NO-ATOMIC:       # %bb.0:
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV32-NO-ATOMIC-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-NO-ATOMIC-NEXT:    li a1, 1
+; RV32-NO-ATOMIC-NEXT:    li a2, 5
+; RV32-NO-ATOMIC-NEXT:    call __atomic_fetch_xor_4@plt
+; RV32-NO-ATOMIC-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV32-NO-ATOMIC-NEXT:    ret
+;
+; RV32-ATOMIC-LABEL: rmw32_xor_seq_cst:
+; RV32-ATOMIC:       # %bb.0:
+; RV32-ATOMIC-NEXT:    addi sp, sp, -16
+; RV32-ATOMIC-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-ATOMIC-NEXT:    li a1, 1
+; RV32-ATOMIC-NEXT:    call __sync_fetch_and_xor_4@plt
+; RV32-ATOMIC-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-ATOMIC-NEXT:    addi sp, sp, 16
+; RV32-ATOMIC-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: rmw32_xor_seq_cst:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-NO-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    li a1, 1
+; RV64-NO-ATOMIC-NEXT:    li a2, 5
+; RV64-NO-ATOMIC-NEXT:    call __atomic_fetch_xor_4@plt
+; RV64-NO-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: rmw32_xor_seq_cst:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    li a1, 1
+; RV64-ATOMIC-NEXT:    call __sync_fetch_and_xor_4@plt
+; RV64-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-ATOMIC-NEXT:    ret
+  %v = atomicrmw xor ptr %p, i32 1 seq_cst, align 4
+  ret i32 %v
+}
+
+define i32 @rmw32_max_seq_cst(ptr %p) nounwind {
+; RV32-NO-ATOMIC-LABEL: rmw32_max_seq_cst:
+; RV32-NO-ATOMIC:       # %bb.0:
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV32-NO-ATOMIC-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-NO-ATOMIC-NEXT:    sw s0, 8(sp) # 4-byte Folded Spill
+; RV32-NO-ATOMIC-NEXT:    mv s0, a0
+; RV32-NO-ATOMIC-NEXT:    lw a1, 0(a0)
+; RV32-NO-ATOMIC-NEXT:    j .LBB23_2
+; RV32-NO-ATOMIC-NEXT:  .LBB23_1: # %atomicrmw.start
+; RV32-NO-ATOMIC-NEXT:    # in Loop: Header=BB23_2 Depth=1
+; RV32-NO-ATOMIC-NEXT:    sw a1, 4(sp)
+; RV32-NO-ATOMIC-NEXT:    addi a1, sp, 4
+; RV32-NO-ATOMIC-NEXT:    li a3, 5
+; RV32-NO-ATOMIC-NEXT:    li a4, 5
+; RV32-NO-ATOMIC-NEXT:    mv a0, s0
+; RV32-NO-ATOMIC-NEXT:    call __atomic_compare_exchange_4@plt
+; RV32-NO-ATOMIC-NEXT:    lw a1, 4(sp)
+; RV32-NO-ATOMIC-NEXT:    bnez a0, .LBB23_4
+; RV32-NO-ATOMIC-NEXT:  .LBB23_2: # %atomicrmw.start
+; RV32-NO-ATOMIC-NEXT:    # =>This Inner Loop Header: Depth=1
+; RV32-NO-ATOMIC-NEXT:    li a0, 1
+; RV32-NO-ATOMIC-NEXT:    mv a2, a1
+; RV32-NO-ATOMIC-NEXT:    blt a0, a1, .LBB23_1
+; RV32-NO-ATOMIC-NEXT:  # %bb.3: # %atomicrmw.start
+; RV32-NO-ATOMIC-NEXT:    # in Loop: Header=BB23_2 Depth=1
+; RV32-NO-ATOMIC-NEXT:    li a2, 1
+; RV32-NO-ATOMIC-NEXT:    j .LBB23_1
+; RV32-NO-ATOMIC-NEXT:  .LBB23_4: # %atomicrmw.end
+; RV32-NO-ATOMIC-NEXT:    mv a0, a1
+; RV32-NO-ATOMIC-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-NO-ATOMIC-NEXT:    lw s0, 8(sp) # 4-byte Folded Reload
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV32-NO-ATOMIC-NEXT:    ret
+;
+; RV32-ATOMIC-LABEL: rmw32_max_seq_cst:
+; RV32-ATOMIC:       # %bb.0:
+; RV32-ATOMIC-NEXT:    addi sp, sp, -16
+; RV32-ATOMIC-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-ATOMIC-NEXT:    li a1, 1
+; RV32-ATOMIC-NEXT:    call __sync_fetch_and_max_4@plt
+; RV32-ATOMIC-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-ATOMIC-NEXT:    addi sp, sp, 16
+; RV32-ATOMIC-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: rmw32_max_seq_cst:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -32
+; RV64-NO-ATOMIC-NEXT:    sd ra, 24(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    sd s0, 16(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    mv s0, a0
+; RV64-NO-ATOMIC-NEXT:    lw a1, 0(a0)
+; RV64-NO-ATOMIC-NEXT:    j .LBB23_2
+; RV64-NO-ATOMIC-NEXT:  .LBB23_1: # %atomicrmw.start
+; RV64-NO-ATOMIC-NEXT:    # in Loop: Header=BB23_2 Depth=1
+; RV64-NO-ATOMIC-NEXT:    sw a1, 12(sp)
+; RV64-NO-ATOMIC-NEXT:    addi a1, sp, 12
+; RV64-NO-ATOMIC-NEXT:    li a3, 5
+; RV64-NO-ATOMIC-NEXT:    li a4, 5
+; RV64-NO-ATOMIC-NEXT:    mv a0, s0
+; RV64-NO-ATOMIC-NEXT:    call __atomic_compare_exchange_4@plt
+; RV64-NO-ATOMIC-NEXT:    lw a1, 12(sp)
+; RV64-NO-ATOMIC-NEXT:    bnez a0, .LBB23_4
+; RV64-NO-ATOMIC-NEXT:  .LBB23_2: # %atomicrmw.start
+; RV64-NO-ATOMIC-NEXT:    # =>This Inner Loop Header: Depth=1
+; RV64-NO-ATOMIC-NEXT:    li a0, 1
+; RV64-NO-ATOMIC-NEXT:    mv a2, a1
+; RV64-NO-ATOMIC-NEXT:    blt a0, a1, .LBB23_1
+; RV64-NO-ATOMIC-NEXT:  # %bb.3: # %atomicrmw.start
+; RV64-NO-ATOMIC-NEXT:    # in Loop: Header=BB23_2 Depth=1
+; RV64-NO-ATOMIC-NEXT:    li a2, 1
+; RV64-NO-ATOMIC-NEXT:    j .LBB23_1
+; RV64-NO-ATOMIC-NEXT:  .LBB23_4: # %atomicrmw.end
+; RV64-NO-ATOMIC-NEXT:    mv a0, a1
+; RV64-NO-ATOMIC-NEXT:    ld ra, 24(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    ld s0, 16(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 32
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: rmw32_max_seq_cst:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    li a1, 1
+; RV64-ATOMIC-NEXT:    call __sync_fetch_and_max_4@plt
+; RV64-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-ATOMIC-NEXT:    ret
+  %v = atomicrmw max ptr %p, i32 1 seq_cst, align 4
+  ret i32 %v
+}
+
+define i32 @rmw32_min_seq_cst(ptr %p) nounwind {
+; RV32-NO-ATOMIC-LABEL: rmw32_min_seq_cst:
+; RV32-NO-ATOMIC:       # %bb.0:
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV32-NO-ATOMIC-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-NO-ATOMIC-NEXT:    sw s0, 8(sp) # 4-byte Folded Spill
+; RV32-NO-ATOMIC-NEXT:    sw s1, 4(sp) # 4-byte Folded Spill
+; RV32-NO-ATOMIC-NEXT:    mv s0, a0
+; RV32-NO-ATOMIC-NEXT:    lw a1, 0(a0)
+; RV32-NO-ATOMIC-NEXT:    li s1, 2
+; RV32-NO-ATOMIC-NEXT:    j .LBB24_2
+; RV32-NO-ATOMIC-NEXT:  .LBB24_1: # %atomicrmw.start
+; RV32-NO-ATOMIC-NEXT:    # in Loop: Header=BB24_2 Depth=1
+; RV32-NO-ATOMIC-NEXT:    sw a1, 0(sp)
+; RV32-NO-ATOMIC-NEXT:    mv a1, sp
+; RV32-NO-ATOMIC-NEXT:    li a3, 5
+; RV32-NO-ATOMIC-NEXT:    li a4, 5
+; RV32-NO-ATOMIC-NEXT:    mv a0, s0
+; RV32-NO-ATOMIC-NEXT:    call __atomic_compare_exchange_4@plt
+; RV32-NO-ATOMIC-NEXT:    lw a1, 0(sp)
+; RV32-NO-ATOMIC-NEXT:    bnez a0, .LBB24_4
+; RV32-NO-ATOMIC-NEXT:  .LBB24_2: # %atomicrmw.start
+; RV32-NO-ATOMIC-NEXT:    # =>This Inner Loop Header: Depth=1
+; RV32-NO-ATOMIC-NEXT:    mv a2, a1
+; RV32-NO-ATOMIC-NEXT:    blt a1, s1, .LBB24_1
+; RV32-NO-ATOMIC-NEXT:  # %bb.3: # %atomicrmw.start
+; RV32-NO-ATOMIC-NEXT:    # in Loop: Header=BB24_2 Depth=1
+; RV32-NO-ATOMIC-NEXT:    li a2, 1
+; RV32-NO-ATOMIC-NEXT:    j .LBB24_1
+; RV32-NO-ATOMIC-NEXT:  .LBB24_4: # %atomicrmw.end
+; RV32-NO-ATOMIC-NEXT:    mv a0, a1
+; RV32-NO-ATOMIC-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-NO-ATOMIC-NEXT:    lw s0, 8(sp) # 4-byte Folded Reload
+; RV32-NO-ATOMIC-NEXT:    lw s1, 4(sp) # 4-byte Folded Reload
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV32-NO-ATOMIC-NEXT:    ret
+;
+; RV32-ATOMIC-LABEL: rmw32_min_seq_cst:
+; RV32-ATOMIC:       # %bb.0:
+; RV32-ATOMIC-NEXT:    addi sp, sp, -16
+; RV32-ATOMIC-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-ATOMIC-NEXT:    li a1, 1
+; RV32-ATOMIC-NEXT:    call __sync_fetch_and_min_4@plt
+; RV32-ATOMIC-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-ATOMIC-NEXT:    addi sp, sp, 16
+; RV32-ATOMIC-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: rmw32_min_seq_cst:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -32
+; RV64-NO-ATOMIC-NEXT:    sd ra, 24(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    sd s0, 16(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    sd s1, 8(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    mv s0, a0
+; RV64-NO-ATOMIC-NEXT:    lw a1, 0(a0)
+; RV64-NO-ATOMIC-NEXT:    li s1, 2
+; RV64-NO-ATOMIC-NEXT:    j .LBB24_2
+; RV64-NO-ATOMIC-NEXT:  .LBB24_1: # %atomicrmw.start
+; RV64-NO-ATOMIC-NEXT:    # in Loop: Header=BB24_2 Depth=1
+; RV64-NO-ATOMIC-NEXT:    sw a1, 4(sp)
+; RV64-NO-ATOMIC-NEXT:    addi a1, sp, 4
+; RV64-NO-ATOMIC-NEXT:    li a3, 5
+; RV64-NO-ATOMIC-NEXT:    li a4, 5
+; RV64-NO-ATOMIC-NEXT:    mv a0, s0
+; RV64-NO-ATOMIC-NEXT:    call __atomic_compare_exchange_4@plt
+; RV64-NO-ATOMIC-NEXT:    lw a1, 4(sp)
+; RV64-NO-ATOMIC-NEXT:    bnez a0, .LBB24_4
+; RV64-NO-ATOMIC-NEXT:  .LBB24_2: # %atomicrmw.start
+; RV64-NO-ATOMIC-NEXT:    # =>This Inner Loop Header: Depth=1
+; RV64-NO-ATOMIC-NEXT:    mv a2, a1
+; RV64-NO-ATOMIC-NEXT:    blt a1, s1, .LBB24_1
+; RV64-NO-ATOMIC-NEXT:  # %bb.3: # %atomicrmw.start
+; RV64-NO-ATOMIC-NEXT:    # in Loop: Header=BB24_2 Depth=1
+; RV64-NO-ATOMIC-NEXT:    li a2, 1
+; RV64-NO-ATOMIC-NEXT:    j .LBB24_1
+; RV64-NO-ATOMIC-NEXT:  .LBB24_4: # %atomicrmw.end
+; RV64-NO-ATOMIC-NEXT:    mv a0, a1
+; RV64-NO-ATOMIC-NEXT:    ld ra, 24(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    ld s0, 16(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    ld s1, 8(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 32
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: rmw32_min_seq_cst:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    li a1, 1
+; RV64-ATOMIC-NEXT:    call __sync_fetch_and_min_4@plt
+; RV64-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-ATOMIC-NEXT:    ret
+  %v = atomicrmw min ptr %p, i32 1 seq_cst, align 4
+  ret i32 %v
+}
+
+define i32 @rmw32_umax_seq_cst(ptr %p) nounwind {
+; RV32-NO-ATOMIC-LABEL: rmw32_umax_seq_cst:
+; RV32-NO-ATOMIC:       # %bb.0:
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV32-NO-ATOMIC-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-NO-ATOMIC-NEXT:    sw s0, 8(sp) # 4-byte Folded Spill
+; RV32-NO-ATOMIC-NEXT:    mv s0, a0
+; RV32-NO-ATOMIC-NEXT:    lw a1, 0(a0)
+; RV32-NO-ATOMIC-NEXT:    j .LBB25_2
+; RV32-NO-ATOMIC-NEXT:  .LBB25_1: # %atomicrmw.start
+; RV32-NO-ATOMIC-NEXT:    # in Loop: Header=BB25_2 Depth=1
+; RV32-NO-ATOMIC-NEXT:    sw a1, 4(sp)
+; RV32-NO-ATOMIC-NEXT:    addi a1, sp, 4
+; RV32-NO-ATOMIC-NEXT:    li a3, 5
+; RV32-NO-ATOMIC-NEXT:    li a4, 5
+; RV32-NO-ATOMIC-NEXT:    mv a0, s0
+; RV32-NO-ATOMIC-NEXT:    call __atomic_compare_exchange_4@plt
+; RV32-NO-ATOMIC-NEXT:    lw a1, 4(sp)
+; RV32-NO-ATOMIC-NEXT:    bnez a0, .LBB25_4
+; RV32-NO-ATOMIC-NEXT:  .LBB25_2: # %atomicrmw.start
+; RV32-NO-ATOMIC-NEXT:    # =>This Inner Loop Header: Depth=1
+; RV32-NO-ATOMIC-NEXT:    li a0, 1
+; RV32-NO-ATOMIC-NEXT:    mv a2, a1
+; RV32-NO-ATOMIC-NEXT:    bltu a0, a1, .LBB25_1
+; RV32-NO-ATOMIC-NEXT:  # %bb.3: # %atomicrmw.start
+; RV32-NO-ATOMIC-NEXT:    # in Loop: Header=BB25_2 Depth=1
+; RV32-NO-ATOMIC-NEXT:    li a2, 1
+; RV32-NO-ATOMIC-NEXT:    j .LBB25_1
+; RV32-NO-ATOMIC-NEXT:  .LBB25_4: # %atomicrmw.end
+; RV32-NO-ATOMIC-NEXT:    mv a0, a1
+; RV32-NO-ATOMIC-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-NO-ATOMIC-NEXT:    lw s0, 8(sp) # 4-byte Folded Reload
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV32-NO-ATOMIC-NEXT:    ret
+;
+; RV32-ATOMIC-LABEL: rmw32_umax_seq_cst:
+; RV32-ATOMIC:       # %bb.0:
+; RV32-ATOMIC-NEXT:    addi sp, sp, -16
+; RV32-ATOMIC-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-ATOMIC-NEXT:    li a1, 1
+; RV32-ATOMIC-NEXT:    call __sync_fetch_and_umax_4@plt
+; RV32-ATOMIC-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-ATOMIC-NEXT:    addi sp, sp, 16
+; RV32-ATOMIC-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: rmw32_umax_seq_cst:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -32
+; RV64-NO-ATOMIC-NEXT:    sd ra, 24(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    sd s0, 16(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    mv s0, a0
+; RV64-NO-ATOMIC-NEXT:    lw a1, 0(a0)
+; RV64-NO-ATOMIC-NEXT:    j .LBB25_2
+; RV64-NO-ATOMIC-NEXT:  .LBB25_1: # %atomicrmw.start
+; RV64-NO-ATOMIC-NEXT:    # in Loop: Header=BB25_2 Depth=1
+; RV64-NO-ATOMIC-NEXT:    sw a1, 12(sp)
+; RV64-NO-ATOMIC-NEXT:    addi a1, sp, 12
+; RV64-NO-ATOMIC-NEXT:    li a3, 5
+; RV64-NO-ATOMIC-NEXT:    li a4, 5
+; RV64-NO-ATOMIC-NEXT:    mv a0, s0
+; RV64-NO-ATOMIC-NEXT:    call __atomic_compare_exchange_4@plt
+; RV64-NO-ATOMIC-NEXT:    lw a1, 12(sp)
+; RV64-NO-ATOMIC-NEXT:    bnez a0, .LBB25_4
+; RV64-NO-ATOMIC-NEXT:  .LBB25_2: # %atomicrmw.start
+; RV64-NO-ATOMIC-NEXT:    # =>This Inner Loop Header: Depth=1
+; RV64-NO-ATOMIC-NEXT:    li a0, 1
+; RV64-NO-ATOMIC-NEXT:    mv a2, a1
+; RV64-NO-ATOMIC-NEXT:    bltu a0, a1, .LBB25_1
+; RV64-NO-ATOMIC-NEXT:  # %bb.3: # %atomicrmw.start
+; RV64-NO-ATOMIC-NEXT:    # in Loop: Header=BB25_2 Depth=1
+; RV64-NO-ATOMIC-NEXT:    li a2, 1
+; RV64-NO-ATOMIC-NEXT:    j .LBB25_1
+; RV64-NO-ATOMIC-NEXT:  .LBB25_4: # %atomicrmw.end
+; RV64-NO-ATOMIC-NEXT:    mv a0, a1
+; RV64-NO-ATOMIC-NEXT:    ld ra, 24(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    ld s0, 16(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 32
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: rmw32_umax_seq_cst:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    li a1, 1
+; RV64-ATOMIC-NEXT:    call __sync_fetch_and_umax_4@plt
+; RV64-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-ATOMIC-NEXT:    ret
+  %v = atomicrmw umax ptr %p, i32 1 seq_cst, align 4
+  ret i32 %v
+}
+
+define i32 @rmw32_umin_seq_cst(ptr %p) nounwind {
+; RV32-NO-ATOMIC-LABEL: rmw32_umin_seq_cst:
+; RV32-NO-ATOMIC:       # %bb.0:
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV32-NO-ATOMIC-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-NO-ATOMIC-NEXT:    sw s0, 8(sp) # 4-byte Folded Spill
+; RV32-NO-ATOMIC-NEXT:    sw s1, 4(sp) # 4-byte Folded Spill
+; RV32-NO-ATOMIC-NEXT:    mv s0, a0
+; RV32-NO-ATOMIC-NEXT:    lw a1, 0(a0)
+; RV32-NO-ATOMIC-NEXT:    li s1, 2
+; RV32-NO-ATOMIC-NEXT:    j .LBB26_2
+; RV32-NO-ATOMIC-NEXT:  .LBB26_1: # %atomicrmw.start
+; RV32-NO-ATOMIC-NEXT:    # in Loop: Header=BB26_2 Depth=1
+; RV32-NO-ATOMIC-NEXT:    sw a1, 0(sp)
+; RV32-NO-ATOMIC-NEXT:    mv a1, sp
+; RV32-NO-ATOMIC-NEXT:    li a3, 5
+; RV32-NO-ATOMIC-NEXT:    li a4, 5
+; RV32-NO-ATOMIC-NEXT:    mv a0, s0
+; RV32-NO-ATOMIC-NEXT:    call __atomic_compare_exchange_4@plt
+; RV32-NO-ATOMIC-NEXT:    lw a1, 0(sp)
+; RV32-NO-ATOMIC-NEXT:    bnez a0, .LBB26_4
+; RV32-NO-ATOMIC-NEXT:  .LBB26_2: # %atomicrmw.start
+; RV32-NO-ATOMIC-NEXT:    # =>This Inner Loop Header: Depth=1
+; RV32-NO-ATOMIC-NEXT:    mv a2, a1
+; RV32-NO-ATOMIC-NEXT:    bltu a1, s1, .LBB26_1
+; RV32-NO-ATOMIC-NEXT:  # %bb.3: # %atomicrmw.start
+; RV32-NO-ATOMIC-NEXT:    # in Loop: Header=BB26_2 Depth=1
+; RV32-NO-ATOMIC-NEXT:    li a2, 1
+; RV32-NO-ATOMIC-NEXT:    j .LBB26_1
+; RV32-NO-ATOMIC-NEXT:  .LBB26_4: # %atomicrmw.end
+; RV32-NO-ATOMIC-NEXT:    mv a0, a1
+; RV32-NO-ATOMIC-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-NO-ATOMIC-NEXT:    lw s0, 8(sp) # 4-byte Folded Reload
+; RV32-NO-ATOMIC-NEXT:    lw s1, 4(sp) # 4-byte Folded Reload
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV32-NO-ATOMIC-NEXT:    ret
+;
+; RV32-ATOMIC-LABEL: rmw32_umin_seq_cst:
+; RV32-ATOMIC:       # %bb.0:
+; RV32-ATOMIC-NEXT:    addi sp, sp, -16
+; RV32-ATOMIC-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-ATOMIC-NEXT:    li a1, 1
+; RV32-ATOMIC-NEXT:    call __sync_fetch_and_umin_4@plt
+; RV32-ATOMIC-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-ATOMIC-NEXT:    addi sp, sp, 16
+; RV32-ATOMIC-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: rmw32_umin_seq_cst:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -32
+; RV64-NO-ATOMIC-NEXT:    sd ra, 24(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    sd s0, 16(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    sd s1, 8(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    mv s0, a0
+; RV64-NO-ATOMIC-NEXT:    lw a1, 0(a0)
+; RV64-NO-ATOMIC-NEXT:    li s1, 2
+; RV64-NO-ATOMIC-NEXT:    j .LBB26_2
+; RV64-NO-ATOMIC-NEXT:  .LBB26_1: # %atomicrmw.start
+; RV64-NO-ATOMIC-NEXT:    # in Loop: Header=BB26_2 Depth=1
+; RV64-NO-ATOMIC-NEXT:    sw a1, 4(sp)
+; RV64-NO-ATOMIC-NEXT:    addi a1, sp, 4
+; RV64-NO-ATOMIC-NEXT:    li a3, 5
+; RV64-NO-ATOMIC-NEXT:    li a4, 5
+; RV64-NO-ATOMIC-NEXT:    mv a0, s0
+; RV64-NO-ATOMIC-NEXT:    call __atomic_compare_exchange_4@plt
+; RV64-NO-ATOMIC-NEXT:    lw a1, 4(sp)
+; RV64-NO-ATOMIC-NEXT:    bnez a0, .LBB26_4
+; RV64-NO-ATOMIC-NEXT:  .LBB26_2: # %atomicrmw.start
+; RV64-NO-ATOMIC-NEXT:    # =>This Inner Loop Header: Depth=1
+; RV64-NO-ATOMIC-NEXT:    mv a2, a1
+; RV64-NO-ATOMIC-NEXT:    bltu a1, s1, .LBB26_1
+; RV64-NO-ATOMIC-NEXT:  # %bb.3: # %atomicrmw.start
+; RV64-NO-ATOMIC-NEXT:    # in Loop: Header=BB26_2 Depth=1
+; RV64-NO-ATOMIC-NEXT:    li a2, 1
+; RV64-NO-ATOMIC-NEXT:    j .LBB26_1
+; RV64-NO-ATOMIC-NEXT:  .LBB26_4: # %atomicrmw.end
+; RV64-NO-ATOMIC-NEXT:    mv a0, a1
+; RV64-NO-ATOMIC-NEXT:    ld ra, 24(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    ld s0, 16(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    ld s1, 8(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 32
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: rmw32_umin_seq_cst:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    li a1, 1
+; RV64-ATOMIC-NEXT:    call __sync_fetch_and_umin_4@plt
+; RV64-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-ATOMIC-NEXT:    ret
+  %v = atomicrmw umin ptr %p, i32 1 seq_cst, align 4
+  ret i32 %v
+}
+
+define i32 @rmw32_xchg_seq_cst(ptr %p) nounwind {
+; RV32-NO-ATOMIC-LABEL: rmw32_xchg_seq_cst:
+; RV32-NO-ATOMIC:       # %bb.0:
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV32-NO-ATOMIC-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-NO-ATOMIC-NEXT:    li a1, 1
+; RV32-NO-ATOMIC-NEXT:    li a2, 5
+; RV32-NO-ATOMIC-NEXT:    call __atomic_exchange_4@plt
+; RV32-NO-ATOMIC-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV32-NO-ATOMIC-NEXT:    ret
+;
+; RV32-ATOMIC-LABEL: rmw32_xchg_seq_cst:
+; RV32-ATOMIC:       # %bb.0:
+; RV32-ATOMIC-NEXT:    addi sp, sp, -16
+; RV32-ATOMIC-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-ATOMIC-NEXT:    li a1, 1
+; RV32-ATOMIC-NEXT:    call __sync_lock_test_and_set_4@plt
+; RV32-ATOMIC-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-ATOMIC-NEXT:    addi sp, sp, 16
+; RV32-ATOMIC-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: rmw32_xchg_seq_cst:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-NO-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    li a1, 1
+; RV64-NO-ATOMIC-NEXT:    li a2, 5
+; RV64-NO-ATOMIC-NEXT:    call __atomic_exchange_4@plt
+; RV64-NO-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: rmw32_xchg_seq_cst:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    li a1, 1
+; RV64-ATOMIC-NEXT:    call __sync_lock_test_and_set_4@plt
+; RV64-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-ATOMIC-NEXT:    ret
+  %v = atomicrmw xchg ptr %p, i32 1 seq_cst, align 4
+  ret i32 %v
+}
+
+define float @rmw32_fadd_seq_cst(ptr %p) nounwind {
+; RV32-NO-ATOMIC-LABEL: rmw32_fadd_seq_cst:
+; RV32-NO-ATOMIC:       # %bb.0:
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV32-NO-ATOMIC-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-NO-ATOMIC-NEXT:    sw s0, 8(sp) # 4-byte Folded Spill
+; RV32-NO-ATOMIC-NEXT:    sw s1, 4(sp) # 4-byte Folded Spill
+; RV32-NO-ATOMIC-NEXT:    mv s0, a0
+; RV32-NO-ATOMIC-NEXT:    lw s1, 0(a0)
+; RV32-NO-ATOMIC-NEXT:  .LBB28_1: # %atomicrmw.start
+; RV32-NO-ATOMIC-NEXT:    # =>This Inner Loop Header: Depth=1
+; RV32-NO-ATOMIC-NEXT:    lui a1, 260096
+; RV32-NO-ATOMIC-NEXT:    mv a0, s1
+; RV32-NO-ATOMIC-NEXT:    call __addsf3@plt
+; RV32-NO-ATOMIC-NEXT:    mv a2, a0
+; RV32-NO-ATOMIC-NEXT:    sw s1, 0(sp)
+; RV32-NO-ATOMIC-NEXT:    mv a1, sp
+; RV32-NO-ATOMIC-NEXT:    li a3, 5
+; RV32-NO-ATOMIC-NEXT:    li a4, 5
+; RV32-NO-ATOMIC-NEXT:    mv a0, s0
+; RV32-NO-ATOMIC-NEXT:    call __atomic_compare_exchange_4@plt
+; RV32-NO-ATOMIC-NEXT:    lw s1, 0(sp)
+; RV32-NO-ATOMIC-NEXT:    beqz a0, .LBB28_1
+; RV32-NO-ATOMIC-NEXT:  # %bb.2: # %atomicrmw.end
+; RV32-NO-ATOMIC-NEXT:    mv a0, s1
+; RV32-NO-ATOMIC-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-NO-ATOMIC-NEXT:    lw s0, 8(sp) # 4-byte Folded Reload
+; RV32-NO-ATOMIC-NEXT:    lw s1, 4(sp) # 4-byte Folded Reload
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV32-NO-ATOMIC-NEXT:    ret
+;
+; RV32-ATOMIC-LABEL: rmw32_fadd_seq_cst:
+; RV32-ATOMIC:       # %bb.0:
+; RV32-ATOMIC-NEXT:    addi sp, sp, -16
+; RV32-ATOMIC-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-ATOMIC-NEXT:    sw s0, 8(sp) # 4-byte Folded Spill
+; RV32-ATOMIC-NEXT:    sw s1, 4(sp) # 4-byte Folded Spill
+; RV32-ATOMIC-NEXT:    mv s0, a0
+; RV32-ATOMIC-NEXT:    lw a0, 0(a0)
+; RV32-ATOMIC-NEXT:  .LBB28_1: # %atomicrmw.start
+; RV32-ATOMIC-NEXT:    # =>This Inner Loop Header: Depth=1
+; RV32-ATOMIC-NEXT:    mv s1, a0
+; RV32-ATOMIC-NEXT:    lui a1, 260096
+; RV32-ATOMIC-NEXT:    call __addsf3@plt
+; RV32-ATOMIC-NEXT:    mv a2, a0
+; RV32-ATOMIC-NEXT:    mv a0, s0
+; RV32-ATOMIC-NEXT:    mv a1, s1
+; RV32-ATOMIC-NEXT:    call __sync_val_compare_and_swap_4@plt
+; RV32-ATOMIC-NEXT:    bne a0, s1, .LBB28_1
+; RV32-ATOMIC-NEXT:  # %bb.2: # %atomicrmw.end
+; RV32-ATOMIC-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-ATOMIC-NEXT:    lw s0, 8(sp) # 4-byte Folded Reload
+; RV32-ATOMIC-NEXT:    lw s1, 4(sp) # 4-byte Folded Reload
+; RV32-ATOMIC-NEXT:    addi sp, sp, 16
+; RV32-ATOMIC-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: rmw32_fadd_seq_cst:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -32
+; RV64-NO-ATOMIC-NEXT:    sd ra, 24(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    sd s0, 16(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    sd s1, 8(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    mv s0, a0
+; RV64-NO-ATOMIC-NEXT:    lw s1, 0(a0)
+; RV64-NO-ATOMIC-NEXT:  .LBB28_1: # %atomicrmw.start
+; RV64-NO-ATOMIC-NEXT:    # =>This Inner Loop Header: Depth=1
+; RV64-NO-ATOMIC-NEXT:    lui a1, 260096
+; RV64-NO-ATOMIC-NEXT:    mv a0, s1
+; RV64-NO-ATOMIC-NEXT:    call __addsf3@plt
+; RV64-NO-ATOMIC-NEXT:    mv a2, a0
+; RV64-NO-ATOMIC-NEXT:    sw s1, 4(sp)
+; RV64-NO-ATOMIC-NEXT:    addi a1, sp, 4
+; RV64-NO-ATOMIC-NEXT:    li a3, 5
+; RV64-NO-ATOMIC-NEXT:    li a4, 5
+; RV64-NO-ATOMIC-NEXT:    mv a0, s0
+; RV64-NO-ATOMIC-NEXT:    call __atomic_compare_exchange_4@plt
+; RV64-NO-ATOMIC-NEXT:    lw s1, 4(sp)
+; RV64-NO-ATOMIC-NEXT:    beqz a0, .LBB28_1
+; RV64-NO-ATOMIC-NEXT:  # %bb.2: # %atomicrmw.end
+; RV64-NO-ATOMIC-NEXT:    mv a0, s1
+; RV64-NO-ATOMIC-NEXT:    ld ra, 24(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    ld s0, 16(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    ld s1, 8(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 32
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: rmw32_fadd_seq_cst:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    addi sp, sp, -32
+; RV64-ATOMIC-NEXT:    sd ra, 24(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    sd s0, 16(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    sd s1, 8(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    sd s2, 0(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    mv s0, a0
+; RV64-ATOMIC-NEXT:    lw s1, 0(a0)
+; RV64-ATOMIC-NEXT:  .LBB28_1: # %atomicrmw.start
+; RV64-ATOMIC-NEXT:    # =>This Inner Loop Header: Depth=1
+; RV64-ATOMIC-NEXT:    lui a1, 260096
+; RV64-ATOMIC-NEXT:    mv a0, s1
+; RV64-ATOMIC-NEXT:    call __addsf3@plt
+; RV64-ATOMIC-NEXT:    mv a2, a0
+; RV64-ATOMIC-NEXT:    sext.w s2, s1
+; RV64-ATOMIC-NEXT:    mv a0, s0
+; RV64-ATOMIC-NEXT:    mv a1, s2
+; RV64-ATOMIC-NEXT:    call __sync_val_compare_and_swap_4@plt
+; RV64-ATOMIC-NEXT:    mv s1, a0
+; RV64-ATOMIC-NEXT:    bne a0, s2, .LBB28_1
+; RV64-ATOMIC-NEXT:  # %bb.2: # %atomicrmw.end
+; RV64-ATOMIC-NEXT:    mv a0, s1
+; RV64-ATOMIC-NEXT:    ld ra, 24(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    ld s0, 16(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    ld s1, 8(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    ld s2, 0(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    addi sp, sp, 32
+; RV64-ATOMIC-NEXT:    ret
+  %v = atomicrmw fadd ptr %p, float 1.0 seq_cst, align 4
+  ret float %v
+}
+
+define float @rmw32_fsub_seq_cst(ptr %p) nounwind {
+; RV32-NO-ATOMIC-LABEL: rmw32_fsub_seq_cst:
+; RV32-NO-ATOMIC:       # %bb.0:
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV32-NO-ATOMIC-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-NO-ATOMIC-NEXT:    sw s0, 8(sp) # 4-byte Folded Spill
+; RV32-NO-ATOMIC-NEXT:    sw s1, 4(sp) # 4-byte Folded Spill
+; RV32-NO-ATOMIC-NEXT:    mv s0, a0
+; RV32-NO-ATOMIC-NEXT:    lw s1, 0(a0)
+; RV32-NO-ATOMIC-NEXT:  .LBB29_1: # %atomicrmw.start
+; RV32-NO-ATOMIC-NEXT:    # =>This Inner Loop Header: Depth=1
+; RV32-NO-ATOMIC-NEXT:    lui a1, 784384
+; RV32-NO-ATOMIC-NEXT:    mv a0, s1
+; RV32-NO-ATOMIC-NEXT:    call __addsf3@plt
+; RV32-NO-ATOMIC-NEXT:    mv a2, a0
+; RV32-NO-ATOMIC-NEXT:    sw s1, 0(sp)
+; RV32-NO-ATOMIC-NEXT:    mv a1, sp
+; RV32-NO-ATOMIC-NEXT:    li a3, 5
+; RV32-NO-ATOMIC-NEXT:    li a4, 5
+; RV32-NO-ATOMIC-NEXT:    mv a0, s0
+; RV32-NO-ATOMIC-NEXT:    call __atomic_compare_exchange_4@plt
+; RV32-NO-ATOMIC-NEXT:    lw s1, 0(sp)
+; RV32-NO-ATOMIC-NEXT:    beqz a0, .LBB29_1
+; RV32-NO-ATOMIC-NEXT:  # %bb.2: # %atomicrmw.end
+; RV32-NO-ATOMIC-NEXT:    mv a0, s1
+; RV32-NO-ATOMIC-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-NO-ATOMIC-NEXT:    lw s0, 8(sp) # 4-byte Folded Reload
+; RV32-NO-ATOMIC-NEXT:    lw s1, 4(sp) # 4-byte Folded Reload
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV32-NO-ATOMIC-NEXT:    ret
+;
+; RV32-ATOMIC-LABEL: rmw32_fsub_seq_cst:
+; RV32-ATOMIC:       # %bb.0:
+; RV32-ATOMIC-NEXT:    addi sp, sp, -16
+; RV32-ATOMIC-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-ATOMIC-NEXT:    sw s0, 8(sp) # 4-byte Folded Spill
+; RV32-ATOMIC-NEXT:    sw s1, 4(sp) # 4-byte Folded Spill
+; RV32-ATOMIC-NEXT:    mv s0, a0
+; RV32-ATOMIC-NEXT:    lw a0, 0(a0)
+; RV32-ATOMIC-NEXT:  .LBB29_1: # %atomicrmw.start
+; RV32-ATOMIC-NEXT:    # =>This Inner Loop Header: Depth=1
+; RV32-ATOMIC-NEXT:    mv s1, a0
+; RV32-ATOMIC-NEXT:    lui a1, 784384
+; RV32-ATOMIC-NEXT:    call __addsf3@plt
+; RV32-ATOMIC-NEXT:    mv a2, a0
+; RV32-ATOMIC-NEXT:    mv a0, s0
+; RV32-ATOMIC-NEXT:    mv a1, s1
+; RV32-ATOMIC-NEXT:    call __sync_val_compare_and_swap_4@plt
+; RV32-ATOMIC-NEXT:    bne a0, s1, .LBB29_1
+; RV32-ATOMIC-NEXT:  # %bb.2: # %atomicrmw.end
+; RV32-ATOMIC-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-ATOMIC-NEXT:    lw s0, 8(sp) # 4-byte Folded Reload
+; RV32-ATOMIC-NEXT:    lw s1, 4(sp) # 4-byte Folded Reload
+; RV32-ATOMIC-NEXT:    addi sp, sp, 16
+; RV32-ATOMIC-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: rmw32_fsub_seq_cst:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -32
+; RV64-NO-ATOMIC-NEXT:    sd ra, 24(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    sd s0, 16(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    sd s1, 8(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    mv s0, a0
+; RV64-NO-ATOMIC-NEXT:    lw s1, 0(a0)
+; RV64-NO-ATOMIC-NEXT:  .LBB29_1: # %atomicrmw.start
+; RV64-NO-ATOMIC-NEXT:    # =>This Inner Loop Header: Depth=1
+; RV64-NO-ATOMIC-NEXT:    lui a1, 784384
+; RV64-NO-ATOMIC-NEXT:    mv a0, s1
+; RV64-NO-ATOMIC-NEXT:    call __addsf3@plt
+; RV64-NO-ATOMIC-NEXT:    mv a2, a0
+; RV64-NO-ATOMIC-NEXT:    sw s1, 4(sp)
+; RV64-NO-ATOMIC-NEXT:    addi a1, sp, 4
+; RV64-NO-ATOMIC-NEXT:    li a3, 5
+; RV64-NO-ATOMIC-NEXT:    li a4, 5
+; RV64-NO-ATOMIC-NEXT:    mv a0, s0
+; RV64-NO-ATOMIC-NEXT:    call __atomic_compare_exchange_4@plt
+; RV64-NO-ATOMIC-NEXT:    lw s1, 4(sp)
+; RV64-NO-ATOMIC-NEXT:    beqz a0, .LBB29_1
+; RV64-NO-ATOMIC-NEXT:  # %bb.2: # %atomicrmw.end
+; RV64-NO-ATOMIC-NEXT:    mv a0, s1
+; RV64-NO-ATOMIC-NEXT:    ld ra, 24(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    ld s0, 16(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    ld s1, 8(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 32
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: rmw32_fsub_seq_cst:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    addi sp, sp, -32
+; RV64-ATOMIC-NEXT:    sd ra, 24(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    sd s0, 16(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    sd s1, 8(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    sd s2, 0(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    mv s0, a0
+; RV64-ATOMIC-NEXT:    lw s1, 0(a0)
+; RV64-ATOMIC-NEXT:  .LBB29_1: # %atomicrmw.start
+; RV64-ATOMIC-NEXT:    # =>This Inner Loop Header: Depth=1
+; RV64-ATOMIC-NEXT:    lui a1, 784384
+; RV64-ATOMIC-NEXT:    mv a0, s1
+; RV64-ATOMIC-NEXT:    call __addsf3@plt
+; RV64-ATOMIC-NEXT:    mv a2, a0
+; RV64-ATOMIC-NEXT:    sext.w s2, s1
+; RV64-ATOMIC-NEXT:    mv a0, s0
+; RV64-ATOMIC-NEXT:    mv a1, s2
+; RV64-ATOMIC-NEXT:    call __sync_val_compare_and_swap_4@plt
+; RV64-ATOMIC-NEXT:    mv s1, a0
+; RV64-ATOMIC-NEXT:    bne a0, s2, .LBB29_1
+; RV64-ATOMIC-NEXT:  # %bb.2: # %atomicrmw.end
+; RV64-ATOMIC-NEXT:    mv a0, s1
+; RV64-ATOMIC-NEXT:    ld ra, 24(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    ld s0, 16(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    ld s1, 8(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    ld s2, 0(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    addi sp, sp, 32
+; RV64-ATOMIC-NEXT:    ret
+  %v = atomicrmw fsub ptr %p, float 1.0 seq_cst, align 4
+  ret float %v
+}
+
+define float @rmw32_fmin_seq_cst(ptr %p) nounwind {
+; RV32-NO-ATOMIC-LABEL: rmw32_fmin_seq_cst:
+; RV32-NO-ATOMIC:       # %bb.0:
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV32-NO-ATOMIC-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-NO-ATOMIC-NEXT:    sw s0, 8(sp) # 4-byte Folded Spill
+; RV32-NO-ATOMIC-NEXT:    sw s1, 4(sp) # 4-byte Folded Spill
+; RV32-NO-ATOMIC-NEXT:    mv s0, a0
+; RV32-NO-ATOMIC-NEXT:    lw s1, 0(a0)
+; RV32-NO-ATOMIC-NEXT:  .LBB30_1: # %atomicrmw.start
+; RV32-NO-ATOMIC-NEXT:    # =>This Inner Loop Header: Depth=1
+; RV32-NO-ATOMIC-NEXT:    lui a1, 260096
+; RV32-NO-ATOMIC-NEXT:    mv a0, s1
+; RV32-NO-ATOMIC-NEXT:    call fminf@plt
+; RV32-NO-ATOMIC-NEXT:    mv a2, a0
+; RV32-NO-ATOMIC-NEXT:    sw s1, 0(sp)
+; RV32-NO-ATOMIC-NEXT:    mv a1, sp
+; RV32-NO-ATOMIC-NEXT:    li a3, 5
+; RV32-NO-ATOMIC-NEXT:    li a4, 5
+; RV32-NO-ATOMIC-NEXT:    mv a0, s0
+; RV32-NO-ATOMIC-NEXT:    call __atomic_compare_exchange_4@plt
+; RV32-NO-ATOMIC-NEXT:    lw s1, 0(sp)
+; RV32-NO-ATOMIC-NEXT:    beqz a0, .LBB30_1
+; RV32-NO-ATOMIC-NEXT:  # %bb.2: # %atomicrmw.end
+; RV32-NO-ATOMIC-NEXT:    mv a0, s1
+; RV32-NO-ATOMIC-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-NO-ATOMIC-NEXT:    lw s0, 8(sp) # 4-byte Folded Reload
+; RV32-NO-ATOMIC-NEXT:    lw s1, 4(sp) # 4-byte Folded Reload
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV32-NO-ATOMIC-NEXT:    ret
+;
+; RV32-ATOMIC-LABEL: rmw32_fmin_seq_cst:
+; RV32-ATOMIC:       # %bb.0:
+; RV32-ATOMIC-NEXT:    addi sp, sp, -16
+; RV32-ATOMIC-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-ATOMIC-NEXT:    sw s0, 8(sp) # 4-byte Folded Spill
+; RV32-ATOMIC-NEXT:    sw s1, 4(sp) # 4-byte Folded Spill
+; RV32-ATOMIC-NEXT:    mv s0, a0
+; RV32-ATOMIC-NEXT:    lw a0, 0(a0)
+; RV32-ATOMIC-NEXT:  .LBB30_1: # %atomicrmw.start
+; RV32-ATOMIC-NEXT:    # =>This Inner Loop Header: Depth=1
+; RV32-ATOMIC-NEXT:    mv s1, a0
+; RV32-ATOMIC-NEXT:    lui a1, 260096
+; RV32-ATOMIC-NEXT:    call fminf@plt
+; RV32-ATOMIC-NEXT:    mv a2, a0
+; RV32-ATOMIC-NEXT:    mv a0, s0
+; RV32-ATOMIC-NEXT:    mv a1, s1
+; RV32-ATOMIC-NEXT:    call __sync_val_compare_and_swap_4@plt
+; RV32-ATOMIC-NEXT:    bne a0, s1, .LBB30_1
+; RV32-ATOMIC-NEXT:  # %bb.2: # %atomicrmw.end
+; RV32-ATOMIC-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-ATOMIC-NEXT:    lw s0, 8(sp) # 4-byte Folded Reload
+; RV32-ATOMIC-NEXT:    lw s1, 4(sp) # 4-byte Folded Reload
+; RV32-ATOMIC-NEXT:    addi sp, sp, 16
+; RV32-ATOMIC-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: rmw32_fmin_seq_cst:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -32
+; RV64-NO-ATOMIC-NEXT:    sd ra, 24(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    sd s0, 16(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    sd s1, 8(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    mv s0, a0
+; RV64-NO-ATOMIC-NEXT:    lw s1, 0(a0)
+; RV64-NO-ATOMIC-NEXT:  .LBB30_1: # %atomicrmw.start
+; RV64-NO-ATOMIC-NEXT:    # =>This Inner Loop Header: Depth=1
+; RV64-NO-ATOMIC-NEXT:    lui a1, 260096
+; RV64-NO-ATOMIC-NEXT:    mv a0, s1
+; RV64-NO-ATOMIC-NEXT:    call fminf@plt
+; RV64-NO-ATOMIC-NEXT:    mv a2, a0
+; RV64-NO-ATOMIC-NEXT:    sw s1, 4(sp)
+; RV64-NO-ATOMIC-NEXT:    addi a1, sp, 4
+; RV64-NO-ATOMIC-NEXT:    li a3, 5
+; RV64-NO-ATOMIC-NEXT:    li a4, 5
+; RV64-NO-ATOMIC-NEXT:    mv a0, s0
+; RV64-NO-ATOMIC-NEXT:    call __atomic_compare_exchange_4@plt
+; RV64-NO-ATOMIC-NEXT:    lw s1, 4(sp)
+; RV64-NO-ATOMIC-NEXT:    beqz a0, .LBB30_1
+; RV64-NO-ATOMIC-NEXT:  # %bb.2: # %atomicrmw.end
+; RV64-NO-ATOMIC-NEXT:    mv a0, s1
+; RV64-NO-ATOMIC-NEXT:    ld ra, 24(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    ld s0, 16(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    ld s1, 8(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 32
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: rmw32_fmin_seq_cst:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    addi sp, sp, -32
+; RV64-ATOMIC-NEXT:    sd ra, 24(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    sd s0, 16(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    sd s1, 8(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    sd s2, 0(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    mv s0, a0
+; RV64-ATOMIC-NEXT:    lw s1, 0(a0)
+; RV64-ATOMIC-NEXT:  .LBB30_1: # %atomicrmw.start
+; RV64-ATOMIC-NEXT:    # =>This Inner Loop Header: Depth=1
+; RV64-ATOMIC-NEXT:    lui a1, 260096
+; RV64-ATOMIC-NEXT:    mv a0, s1
+; RV64-ATOMIC-NEXT:    call fminf@plt
+; RV64-ATOMIC-NEXT:    mv a2, a0
+; RV64-ATOMIC-NEXT:    sext.w s2, s1
+; RV64-ATOMIC-NEXT:    mv a0, s0
+; RV64-ATOMIC-NEXT:    mv a1, s2
+; RV64-ATOMIC-NEXT:    call __sync_val_compare_and_swap_4@plt
+; RV64-ATOMIC-NEXT:    mv s1, a0
+; RV64-ATOMIC-NEXT:    bne a0, s2, .LBB30_1
+; RV64-ATOMIC-NEXT:  # %bb.2: # %atomicrmw.end
+; RV64-ATOMIC-NEXT:    mv a0, s1
+; RV64-ATOMIC-NEXT:    ld ra, 24(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    ld s0, 16(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    ld s1, 8(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    ld s2, 0(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    addi sp, sp, 32
+; RV64-ATOMIC-NEXT:    ret
+  %v = atomicrmw fmin ptr %p, float 1.0 seq_cst, align 4
+  ret float %v
+}
+
+define float @rmw32_fmax_seq_cst(ptr %p) nounwind {
+; RV32-NO-ATOMIC-LABEL: rmw32_fmax_seq_cst:
+; RV32-NO-ATOMIC:       # %bb.0:
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV32-NO-ATOMIC-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-NO-ATOMIC-NEXT:    sw s0, 8(sp) # 4-byte Folded Spill
+; RV32-NO-ATOMIC-NEXT:    sw s1, 4(sp) # 4-byte Folded Spill
+; RV32-NO-ATOMIC-NEXT:    mv s0, a0
+; RV32-NO-ATOMIC-NEXT:    lw s1, 0(a0)
+; RV32-NO-ATOMIC-NEXT:  .LBB31_1: # %atomicrmw.start
+; RV32-NO-ATOMIC-NEXT:    # =>This Inner Loop Header: Depth=1
+; RV32-NO-ATOMIC-NEXT:    lui a1, 260096
+; RV32-NO-ATOMIC-NEXT:    mv a0, s1
+; RV32-NO-ATOMIC-NEXT:    call fmaxf@plt
+; RV32-NO-ATOMIC-NEXT:    mv a2, a0
+; RV32-NO-ATOMIC-NEXT:    sw s1, 0(sp)
+; RV32-NO-ATOMIC-NEXT:    mv a1, sp
+; RV32-NO-ATOMIC-NEXT:    li a3, 5
+; RV32-NO-ATOMIC-NEXT:    li a4, 5
+; RV32-NO-ATOMIC-NEXT:    mv a0, s0
+; RV32-NO-ATOMIC-NEXT:    call __atomic_compare_exchange_4@plt
+; RV32-NO-ATOMIC-NEXT:    lw s1, 0(sp)
+; RV32-NO-ATOMIC-NEXT:    beqz a0, .LBB31_1
+; RV32-NO-ATOMIC-NEXT:  # %bb.2: # %atomicrmw.end
+; RV32-NO-ATOMIC-NEXT:    mv a0, s1
+; RV32-NO-ATOMIC-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-NO-ATOMIC-NEXT:    lw s0, 8(sp) # 4-byte Folded Reload
+; RV32-NO-ATOMIC-NEXT:    lw s1, 4(sp) # 4-byte Folded Reload
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV32-NO-ATOMIC-NEXT:    ret
+;
+; RV32-ATOMIC-LABEL: rmw32_fmax_seq_cst:
+; RV32-ATOMIC:       # %bb.0:
+; RV32-ATOMIC-NEXT:    addi sp, sp, -16
+; RV32-ATOMIC-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-ATOMIC-NEXT:    sw s0, 8(sp) # 4-byte Folded Spill
+; RV32-ATOMIC-NEXT:    sw s1, 4(sp) # 4-byte Folded Spill
+; RV32-ATOMIC-NEXT:    mv s0, a0
+; RV32-ATOMIC-NEXT:    lw a0, 0(a0)
+; RV32-ATOMIC-NEXT:  .LBB31_1: # %atomicrmw.start
+; RV32-ATOMIC-NEXT:    # =>This Inner Loop Header: Depth=1
+; RV32-ATOMIC-NEXT:    mv s1, a0
+; RV32-ATOMIC-NEXT:    lui a1, 260096
+; RV32-ATOMIC-NEXT:    call fmaxf@plt
+; RV32-ATOMIC-NEXT:    mv a2, a0
+; RV32-ATOMIC-NEXT:    mv a0, s0
+; RV32-ATOMIC-NEXT:    mv a1, s1
+; RV32-ATOMIC-NEXT:    call __sync_val_compare_and_swap_4@plt
+; RV32-ATOMIC-NEXT:    bne a0, s1, .LBB31_1
+; RV32-ATOMIC-NEXT:  # %bb.2: # %atomicrmw.end
+; RV32-ATOMIC-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-ATOMIC-NEXT:    lw s0, 8(sp) # 4-byte Folded Reload
+; RV32-ATOMIC-NEXT:    lw s1, 4(sp) # 4-byte Folded Reload
+; RV32-ATOMIC-NEXT:    addi sp, sp, 16
+; RV32-ATOMIC-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: rmw32_fmax_seq_cst:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -32
+; RV64-NO-ATOMIC-NEXT:    sd ra, 24(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    sd s0, 16(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    sd s1, 8(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    mv s0, a0
+; RV64-NO-ATOMIC-NEXT:    lw s1, 0(a0)
+; RV64-NO-ATOMIC-NEXT:  .LBB31_1: # %atomicrmw.start
+; RV64-NO-ATOMIC-NEXT:    # =>This Inner Loop Header: Depth=1
+; RV64-NO-ATOMIC-NEXT:    lui a1, 260096
+; RV64-NO-ATOMIC-NEXT:    mv a0, s1
+; RV64-NO-ATOMIC-NEXT:    call fmaxf@plt
+; RV64-NO-ATOMIC-NEXT:    mv a2, a0
+; RV64-NO-ATOMIC-NEXT:    sw s1, 4(sp)
+; RV64-NO-ATOMIC-NEXT:    addi a1, sp, 4
+; RV64-NO-ATOMIC-NEXT:    li a3, 5
+; RV64-NO-ATOMIC-NEXT:    li a4, 5
+; RV64-NO-ATOMIC-NEXT:    mv a0, s0
+; RV64-NO-ATOMIC-NEXT:    call __atomic_compare_exchange_4@plt
+; RV64-NO-ATOMIC-NEXT:    lw s1, 4(sp)
+; RV64-NO-ATOMIC-NEXT:    beqz a0, .LBB31_1
+; RV64-NO-ATOMIC-NEXT:  # %bb.2: # %atomicrmw.end
+; RV64-NO-ATOMIC-NEXT:    mv a0, s1
+; RV64-NO-ATOMIC-NEXT:    ld ra, 24(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    ld s0, 16(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    ld s1, 8(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 32
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: rmw32_fmax_seq_cst:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    addi sp, sp, -32
+; RV64-ATOMIC-NEXT:    sd ra, 24(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    sd s0, 16(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    sd s1, 8(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    sd s2, 0(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    mv s0, a0
+; RV64-ATOMIC-NEXT:    lw s1, 0(a0)
+; RV64-ATOMIC-NEXT:  .LBB31_1: # %atomicrmw.start
+; RV64-ATOMIC-NEXT:    # =>This Inner Loop Header: Depth=1
+; RV64-ATOMIC-NEXT:    lui a1, 260096
+; RV64-ATOMIC-NEXT:    mv a0, s1
+; RV64-ATOMIC-NEXT:    call fmaxf@plt
+; RV64-ATOMIC-NEXT:    mv a2, a0
+; RV64-ATOMIC-NEXT:    sext.w s2, s1
+; RV64-ATOMIC-NEXT:    mv a0, s0
+; RV64-ATOMIC-NEXT:    mv a1, s2
+; RV64-ATOMIC-NEXT:    call __sync_val_compare_and_swap_4@plt
+; RV64-ATOMIC-NEXT:    mv s1, a0
+; RV64-ATOMIC-NEXT:    bne a0, s2, .LBB31_1
+; RV64-ATOMIC-NEXT:  # %bb.2: # %atomicrmw.end
+; RV64-ATOMIC-NEXT:    mv a0, s1
+; RV64-ATOMIC-NEXT:    ld ra, 24(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    ld s0, 16(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    ld s1, 8(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    ld s2, 0(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    addi sp, sp, 32
+; RV64-ATOMIC-NEXT:    ret
+  %v = atomicrmw fmax ptr %p, float 1.0 seq_cst, align 4
+  ret float %v
+}
+
+define i32 @cmpxchg32_monotonic(ptr %p) nounwind {
+; RV32-NO-ATOMIC-LABEL: cmpxchg32_monotonic:
+; RV32-NO-ATOMIC:       # %bb.0:
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV32-NO-ATOMIC-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-NO-ATOMIC-NEXT:    sw zero, 8(sp)
+; RV32-NO-ATOMIC-NEXT:    addi a1, sp, 8
+; RV32-NO-ATOMIC-NEXT:    li a2, 1
+; RV32-NO-ATOMIC-NEXT:    li a3, 0
+; RV32-NO-ATOMIC-NEXT:    li a4, 0
+; RV32-NO-ATOMIC-NEXT:    call __atomic_compare_exchange_4@plt
+; RV32-NO-ATOMIC-NEXT:    lw a0, 8(sp)
+; RV32-NO-ATOMIC-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV32-NO-ATOMIC-NEXT:    ret
+;
+; RV32-ATOMIC-LABEL: cmpxchg32_monotonic:
+; RV32-ATOMIC:       # %bb.0:
+; RV32-ATOMIC-NEXT:    addi sp, sp, -16
+; RV32-ATOMIC-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-ATOMIC-NEXT:    li a2, 1
+; RV32-ATOMIC-NEXT:    li a1, 0
+; RV32-ATOMIC-NEXT:    call __sync_val_compare_and_swap_4@plt
+; RV32-ATOMIC-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-ATOMIC-NEXT:    addi sp, sp, 16
+; RV32-ATOMIC-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: cmpxchg32_monotonic:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-NO-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    sw zero, 4(sp)
+; RV64-NO-ATOMIC-NEXT:    addi a1, sp, 4
+; RV64-NO-ATOMIC-NEXT:    li a2, 1
+; RV64-NO-ATOMIC-NEXT:    li a3, 0
+; RV64-NO-ATOMIC-NEXT:    li a4, 0
+; RV64-NO-ATOMIC-NEXT:    call __atomic_compare_exchange_4@plt
+; RV64-NO-ATOMIC-NEXT:    lw a0, 4(sp)
+; RV64-NO-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: cmpxchg32_monotonic:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    li a2, 1
+; RV64-ATOMIC-NEXT:    li a1, 0
+; RV64-ATOMIC-NEXT:    call __sync_val_compare_and_swap_4@plt
+; RV64-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-ATOMIC-NEXT:    ret
+  %res = cmpxchg ptr %p, i32 0, i32 1 monotonic monotonic
+  %res.0 = extractvalue { i32, i1 } %res, 0
+  ret i32 %res.0
+}
+
+define i32 @cmpxchg32_seq_cst(ptr %p) nounwind {
+; RV32-NO-ATOMIC-LABEL: cmpxchg32_seq_cst:
+; RV32-NO-ATOMIC:       # %bb.0:
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV32-NO-ATOMIC-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-NO-ATOMIC-NEXT:    sw zero, 8(sp)
+; RV32-NO-ATOMIC-NEXT:    addi a1, sp, 8
+; RV32-NO-ATOMIC-NEXT:    li a2, 1
+; RV32-NO-ATOMIC-NEXT:    li a3, 5
+; RV32-NO-ATOMIC-NEXT:    li a4, 5
+; RV32-NO-ATOMIC-NEXT:    call __atomic_compare_exchange_4@plt
+; RV32-NO-ATOMIC-NEXT:    lw a0, 8(sp)
+; RV32-NO-ATOMIC-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV32-NO-ATOMIC-NEXT:    ret
+;
+; RV32-ATOMIC-LABEL: cmpxchg32_seq_cst:
+; RV32-ATOMIC:       # %bb.0:
+; RV32-ATOMIC-NEXT:    addi sp, sp, -16
+; RV32-ATOMIC-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-ATOMIC-NEXT:    li a2, 1
+; RV32-ATOMIC-NEXT:    li a1, 0
+; RV32-ATOMIC-NEXT:    call __sync_val_compare_and_swap_4@plt
+; RV32-ATOMIC-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-ATOMIC-NEXT:    addi sp, sp, 16
+; RV32-ATOMIC-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: cmpxchg32_seq_cst:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-NO-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    sw zero, 4(sp)
+; RV64-NO-ATOMIC-NEXT:    addi a1, sp, 4
+; RV64-NO-ATOMIC-NEXT:    li a2, 1
+; RV64-NO-ATOMIC-NEXT:    li a3, 5
+; RV64-NO-ATOMIC-NEXT:    li a4, 5
+; RV64-NO-ATOMIC-NEXT:    call __atomic_compare_exchange_4@plt
+; RV64-NO-ATOMIC-NEXT:    lw a0, 4(sp)
+; RV64-NO-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: cmpxchg32_seq_cst:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    li a2, 1
+; RV64-ATOMIC-NEXT:    li a1, 0
+; RV64-ATOMIC-NEXT:    call __sync_val_compare_and_swap_4@plt
+; RV64-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-ATOMIC-NEXT:    ret
+  %res = cmpxchg ptr %p, i32 0, i32 1 seq_cst seq_cst
+  %res.0 = extractvalue { i32, i1 } %res, 0
+  ret i32 %res.0
+}
+
+define i64 @load64_unordered(ptr %p) nounwind {
+; RV32-LABEL: load64_unordered:
+; RV32:       # %bb.0:
+; RV32-NEXT:    addi sp, sp, -16
+; RV32-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-NEXT:    li a1, 0
+; RV32-NEXT:    call __atomic_load_8@plt
+; RV32-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-NEXT:    addi sp, sp, 16
+; RV32-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: load64_unordered:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-NO-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    li a1, 0
+; RV64-NO-ATOMIC-NEXT:    call __atomic_load_8@plt
+; RV64-NO-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: load64_unordered:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    ld a0, 0(a0)
+; RV64-ATOMIC-NEXT:    ret
+  %v = load atomic i64, ptr %p unordered, align 8
+  ret i64 %v
+}
+
+define i64 @load64_monotonic(ptr %p) nounwind {
+; RV32-LABEL: load64_monotonic:
+; RV32:       # %bb.0:
+; RV32-NEXT:    addi sp, sp, -16
+; RV32-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-NEXT:    li a1, 0
+; RV32-NEXT:    call __atomic_load_8@plt
+; RV32-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-NEXT:    addi sp, sp, 16
+; RV32-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: load64_monotonic:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-NO-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    li a1, 0
+; RV64-NO-ATOMIC-NEXT:    call __atomic_load_8@plt
+; RV64-NO-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: load64_monotonic:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    ld a0, 0(a0)
+; RV64-ATOMIC-NEXT:    ret
+  %v = load atomic i64, ptr %p monotonic, align 8
+  ret i64 %v
+}
+
+define i64 @load64_acquire(ptr %p) nounwind {
+; RV32-LABEL: load64_acquire:
+; RV32:       # %bb.0:
+; RV32-NEXT:    addi sp, sp, -16
+; RV32-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-NEXT:    li a1, 2
+; RV32-NEXT:    call __atomic_load_8@plt
+; RV32-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-NEXT:    addi sp, sp, 16
+; RV32-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: load64_acquire:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-NO-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    li a1, 2
+; RV64-NO-ATOMIC-NEXT:    call __atomic_load_8@plt
+; RV64-NO-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: load64_acquire:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    ld a0, 0(a0)
+; RV64-ATOMIC-NEXT:    fence r, rw
+; RV64-ATOMIC-NEXT:    ret
+  %v = load atomic i64, ptr %p acquire, align 8
+  ret i64 %v
+}
+
+define i64 @load64_seq_cst(ptr %p) nounwind {
+; RV32-LABEL: load64_seq_cst:
+; RV32:       # %bb.0:
+; RV32-NEXT:    addi sp, sp, -16
+; RV32-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-NEXT:    li a1, 5
+; RV32-NEXT:    call __atomic_load_8@plt
+; RV32-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-NEXT:    addi sp, sp, 16
+; RV32-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: load64_seq_cst:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-NO-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    li a1, 5
+; RV64-NO-ATOMIC-NEXT:    call __atomic_load_8@plt
+; RV64-NO-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: load64_seq_cst:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    fence rw, rw
+; RV64-ATOMIC-NEXT:    ld a0, 0(a0)
+; RV64-ATOMIC-NEXT:    fence r, rw
+; RV64-ATOMIC-NEXT:    ret
+  %v = load atomic i64, ptr %p seq_cst, align 8
+  ret i64 %v
+}
+
+define void @store64_unordered(ptr %p) nounwind {
+; RV32-LABEL: store64_unordered:
+; RV32:       # %bb.0:
+; RV32-NEXT:    addi sp, sp, -16
+; RV32-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-NEXT:    li a1, 0
+; RV32-NEXT:    li a2, 0
+; RV32-NEXT:    li a3, 0
+; RV32-NEXT:    call __atomic_store_8@plt
+; RV32-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-NEXT:    addi sp, sp, 16
+; RV32-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: store64_unordered:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-NO-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    li a1, 0
+; RV64-NO-ATOMIC-NEXT:    li a2, 0
+; RV64-NO-ATOMIC-NEXT:    call __atomic_store_8@plt
+; RV64-NO-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: store64_unordered:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    sd zero, 0(a0)
+; RV64-ATOMIC-NEXT:    ret
+  store atomic i64 0, ptr %p unordered, align 8
+  ret void
+}
+
+define void @store64_monotonic(ptr %p) nounwind {
+; RV32-LABEL: store64_monotonic:
+; RV32:       # %bb.0:
+; RV32-NEXT:    addi sp, sp, -16
+; RV32-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-NEXT:    li a1, 0
+; RV32-NEXT:    li a2, 0
+; RV32-NEXT:    li a3, 0
+; RV32-NEXT:    call __atomic_store_8@plt
+; RV32-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-NEXT:    addi sp, sp, 16
+; RV32-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: store64_monotonic:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-NO-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    li a1, 0
+; RV64-NO-ATOMIC-NEXT:    li a2, 0
+; RV64-NO-ATOMIC-NEXT:    call __atomic_store_8@plt
+; RV64-NO-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: store64_monotonic:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    sd zero, 0(a0)
+; RV64-ATOMIC-NEXT:    ret
+  store atomic i64 0, ptr %p monotonic, align 8
+  ret void
+}
+
+define void @store64_release(ptr %p) nounwind {
+; RV32-LABEL: store64_release:
+; RV32:       # %bb.0:
+; RV32-NEXT:    addi sp, sp, -16
+; RV32-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-NEXT:    li a3, 3
+; RV32-NEXT:    li a1, 0
+; RV32-NEXT:    li a2, 0
+; RV32-NEXT:    call __atomic_store_8@plt
+; RV32-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-NEXT:    addi sp, sp, 16
+; RV32-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: store64_release:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-NO-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    li a2, 3
+; RV64-NO-ATOMIC-NEXT:    li a1, 0
+; RV64-NO-ATOMIC-NEXT:    call __atomic_store_8@plt
+; RV64-NO-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: store64_release:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    fence rw, w
+; RV64-ATOMIC-NEXT:    sd zero, 0(a0)
+; RV64-ATOMIC-NEXT:    ret
+  store atomic i64 0, ptr %p release, align 8
+  ret void
+}
+
+define void @store64(ptr %p) nounwind {
+; RV32-LABEL: store64:
+; RV32:       # %bb.0:
+; RV32-NEXT:    addi sp, sp, -16
+; RV32-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-NEXT:    li a3, 5
+; RV32-NEXT:    li a1, 0
+; RV32-NEXT:    li a2, 0
+; RV32-NEXT:    call __atomic_store_8@plt
+; RV32-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-NEXT:    addi sp, sp, 16
+; RV32-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: store64:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-NO-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    li a2, 5
+; RV64-NO-ATOMIC-NEXT:    li a1, 0
+; RV64-NO-ATOMIC-NEXT:    call __atomic_store_8@plt
+; RV64-NO-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: store64:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    fence rw, w
+; RV64-ATOMIC-NEXT:    sd zero, 0(a0)
+; RV64-ATOMIC-NEXT:    ret
+  store atomic i64 0, ptr %p seq_cst, align 8
+  ret void
+}
+
+define i64 @rmw64_monotonic(ptr %p) nounwind {
+; RV32-LABEL: rmw64_monotonic:
+; RV32:       # %bb.0:
+; RV32-NEXT:    addi sp, sp, -16
+; RV32-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-NEXT:    li a1, 1
+; RV32-NEXT:    li a2, 0
+; RV32-NEXT:    li a3, 0
+; RV32-NEXT:    call __atomic_fetch_add_8@plt
+; RV32-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-NEXT:    addi sp, sp, 16
+; RV32-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: rmw64_monotonic:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-NO-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    li a1, 1
+; RV64-NO-ATOMIC-NEXT:    li a2, 0
+; RV64-NO-ATOMIC-NEXT:    call __atomic_fetch_add_8@plt
+; RV64-NO-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: rmw64_monotonic:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    li a1, 1
+; RV64-ATOMIC-NEXT:    call __sync_fetch_and_add_8@plt
+; RV64-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-ATOMIC-NEXT:    ret
+  %v = atomicrmw add ptr %p, i64 1 monotonic, align 8
+  ret i64 %v
+}
+
+define i64 @rmw64_add_seq_cst(ptr %p) nounwind {
+; RV32-LABEL: rmw64_add_seq_cst:
+; RV32:       # %bb.0:
+; RV32-NEXT:    addi sp, sp, -16
+; RV32-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-NEXT:    li a1, 1
+; RV32-NEXT:    li a3, 5
+; RV32-NEXT:    li a2, 0
+; RV32-NEXT:    call __atomic_fetch_add_8@plt
+; RV32-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-NEXT:    addi sp, sp, 16
+; RV32-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: rmw64_add_seq_cst:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-NO-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    li a1, 1
+; RV64-NO-ATOMIC-NEXT:    li a2, 5
+; RV64-NO-ATOMIC-NEXT:    call __atomic_fetch_add_8@plt
+; RV64-NO-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: rmw64_add_seq_cst:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    li a1, 1
+; RV64-ATOMIC-NEXT:    call __sync_fetch_and_add_8@plt
+; RV64-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-ATOMIC-NEXT:    ret
+  %v = atomicrmw add ptr %p, i64 1 seq_cst, align 8
+  ret i64 %v
+}
+
+define i64 @rmw64_sub_seq_cst(ptr %p) nounwind {
+; RV32-LABEL: rmw64_sub_seq_cst:
+; RV32:       # %bb.0:
+; RV32-NEXT:    addi sp, sp, -16
+; RV32-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-NEXT:    li a1, 1
+; RV32-NEXT:    li a3, 5
+; RV32-NEXT:    li a2, 0
+; RV32-NEXT:    call __atomic_fetch_sub_8@plt
+; RV32-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-NEXT:    addi sp, sp, 16
+; RV32-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: rmw64_sub_seq_cst:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-NO-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    li a1, 1
+; RV64-NO-ATOMIC-NEXT:    li a2, 5
+; RV64-NO-ATOMIC-NEXT:    call __atomic_fetch_sub_8@plt
+; RV64-NO-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: rmw64_sub_seq_cst:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    li a1, 1
+; RV64-ATOMIC-NEXT:    call __sync_fetch_and_sub_8@plt
+; RV64-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-ATOMIC-NEXT:    ret
+  %v = atomicrmw sub ptr %p, i64 1 seq_cst, align 8
+  ret i64 %v
+}
+
+define i64 @rmw64_and_seq_cst(ptr %p) nounwind {
+; RV32-LABEL: rmw64_and_seq_cst:
+; RV32:       # %bb.0:
+; RV32-NEXT:    addi sp, sp, -16
+; RV32-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-NEXT:    li a1, 1
+; RV32-NEXT:    li a3, 5
+; RV32-NEXT:    li a2, 0
+; RV32-NEXT:    call __atomic_fetch_and_8@plt
+; RV32-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-NEXT:    addi sp, sp, 16
+; RV32-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: rmw64_and_seq_cst:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-NO-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    li a1, 1
+; RV64-NO-ATOMIC-NEXT:    li a2, 5
+; RV64-NO-ATOMIC-NEXT:    call __atomic_fetch_and_8@plt
+; RV64-NO-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: rmw64_and_seq_cst:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    li a1, 1
+; RV64-ATOMIC-NEXT:    call __sync_fetch_and_and_8@plt
+; RV64-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-ATOMIC-NEXT:    ret
+  %v = atomicrmw and ptr %p, i64 1 seq_cst, align 8
+  ret i64 %v
+}
+
+define i64 @rmw64_nand_seq_cst(ptr %p) nounwind {
+; RV32-LABEL: rmw64_nand_seq_cst:
+; RV32:       # %bb.0:
+; RV32-NEXT:    addi sp, sp, -16
+; RV32-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-NEXT:    li a1, 1
+; RV32-NEXT:    li a3, 5
+; RV32-NEXT:    li a2, 0
+; RV32-NEXT:    call __atomic_fetch_nand_8@plt
+; RV32-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-NEXT:    addi sp, sp, 16
+; RV32-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: rmw64_nand_seq_cst:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-NO-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    li a1, 1
+; RV64-NO-ATOMIC-NEXT:    li a2, 5
+; RV64-NO-ATOMIC-NEXT:    call __atomic_fetch_nand_8@plt
+; RV64-NO-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: rmw64_nand_seq_cst:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    li a1, 1
+; RV64-ATOMIC-NEXT:    call __sync_fetch_and_nand_8@plt
+; RV64-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-ATOMIC-NEXT:    ret
+  %v = atomicrmw nand ptr %p, i64 1 seq_cst, align 8
+  ret i64 %v
+}
+
+define i64 @rmw64_or_seq_cst(ptr %p) nounwind {
+; RV32-LABEL: rmw64_or_seq_cst:
+; RV32:       # %bb.0:
+; RV32-NEXT:    addi sp, sp, -16
+; RV32-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-NEXT:    li a1, 1
+; RV32-NEXT:    li a3, 5
+; RV32-NEXT:    li a2, 0
+; RV32-NEXT:    call __atomic_fetch_or_8@plt
+; RV32-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-NEXT:    addi sp, sp, 16
+; RV32-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: rmw64_or_seq_cst:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-NO-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    li a1, 1
+; RV64-NO-ATOMIC-NEXT:    li a2, 5
+; RV64-NO-ATOMIC-NEXT:    call __atomic_fetch_or_8@plt
+; RV64-NO-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: rmw64_or_seq_cst:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    li a1, 1
+; RV64-ATOMIC-NEXT:    call __sync_fetch_and_or_8@plt
+; RV64-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-ATOMIC-NEXT:    ret
+  %v = atomicrmw or ptr %p, i64 1 seq_cst, align 8
+  ret i64 %v
+}
+
+define i64 @rmw64_xor_seq_cst(ptr %p) nounwind {
+; RV32-LABEL: rmw64_xor_seq_cst:
+; RV32:       # %bb.0:
+; RV32-NEXT:    addi sp, sp, -16
+; RV32-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-NEXT:    li a1, 1
+; RV32-NEXT:    li a3, 5
+; RV32-NEXT:    li a2, 0
+; RV32-NEXT:    call __atomic_fetch_xor_8@plt
+; RV32-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-NEXT:    addi sp, sp, 16
+; RV32-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: rmw64_xor_seq_cst:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-NO-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    li a1, 1
+; RV64-NO-ATOMIC-NEXT:    li a2, 5
+; RV64-NO-ATOMIC-NEXT:    call __atomic_fetch_xor_8@plt
+; RV64-NO-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: rmw64_xor_seq_cst:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    li a1, 1
+; RV64-ATOMIC-NEXT:    call __sync_fetch_and_xor_8@plt
+; RV64-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-ATOMIC-NEXT:    ret
+  %v = atomicrmw xor ptr %p, i64 1 seq_cst, align 8
+  ret i64 %v
+}
+
+define i64 @rmw64_max_seq_cst(ptr %p) nounwind {
+; RV32-LABEL: rmw64_max_seq_cst:
+; RV32:       # %bb.0:
+; RV32-NEXT:    addi sp, sp, -16
+; RV32-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-NEXT:    sw s0, 8(sp) # 4-byte Folded Spill
+; RV32-NEXT:    mv s0, a0
+; RV32-NEXT:    lw a1, 4(a0)
+; RV32-NEXT:    lw a4, 0(a0)
+; RV32-NEXT:    j .LBB49_2
+; RV32-NEXT:  .LBB49_1: # %atomicrmw.start
+; RV32-NEXT:    # in Loop: Header=BB49_2 Depth=1
+; RV32-NEXT:    sw a4, 0(sp)
+; RV32-NEXT:    sw a1, 4(sp)
+; RV32-NEXT:    mv a1, sp
+; RV32-NEXT:    li a4, 5
+; RV32-NEXT:    li a5, 5
+; RV32-NEXT:    mv a0, s0
+; RV32-NEXT:    call __atomic_compare_exchange_8@plt
+; RV32-NEXT:    lw a1, 4(sp)
+; RV32-NEXT:    lw a4, 0(sp)
+; RV32-NEXT:    bnez a0, .LBB49_7
+; RV32-NEXT:  .LBB49_2: # %atomicrmw.start
+; RV32-NEXT:    # =>This Inner Loop Header: Depth=1
+; RV32-NEXT:    li a0, 1
+; RV32-NEXT:    beqz a1, .LBB49_4
+; RV32-NEXT:  # %bb.3: # %atomicrmw.start
+; RV32-NEXT:    # in Loop: Header=BB49_2 Depth=1
+; RV32-NEXT:    sgtz a0, a1
+; RV32-NEXT:    j .LBB49_5
+; RV32-NEXT:  .LBB49_4: # in Loop: Header=BB49_2 Depth=1
+; RV32-NEXT:    sltu a0, a0, a4
+; RV32-NEXT:  .LBB49_5: # %atomicrmw.start
+; RV32-NEXT:    # in Loop: Header=BB49_2 Depth=1
+; RV32-NEXT:    mv a2, a4
+; RV32-NEXT:    mv a3, a1
+; RV32-NEXT:    bnez a0, .LBB49_1
+; RV32-NEXT:  # %bb.6: # %atomicrmw.start
+; RV32-NEXT:    # in Loop: Header=BB49_2 Depth=1
+; RV32-NEXT:    li a3, 0
+; RV32-NEXT:    li a2, 1
+; RV32-NEXT:    j .LBB49_1
+; RV32-NEXT:  .LBB49_7: # %atomicrmw.end
+; RV32-NEXT:    mv a0, a4
+; RV32-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-NEXT:    lw s0, 8(sp) # 4-byte Folded Reload
+; RV32-NEXT:    addi sp, sp, 16
+; RV32-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: rmw64_max_seq_cst:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -32
+; RV64-NO-ATOMIC-NEXT:    sd ra, 24(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    sd s0, 16(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    mv s0, a0
+; RV64-NO-ATOMIC-NEXT:    ld a1, 0(a0)
+; RV64-NO-ATOMIC-NEXT:    j .LBB49_2
+; RV64-NO-ATOMIC-NEXT:  .LBB49_1: # %atomicrmw.start
+; RV64-NO-ATOMIC-NEXT:    # in Loop: Header=BB49_2 Depth=1
+; RV64-NO-ATOMIC-NEXT:    sd a1, 8(sp)
+; RV64-NO-ATOMIC-NEXT:    addi a1, sp, 8
+; RV64-NO-ATOMIC-NEXT:    li a3, 5
+; RV64-NO-ATOMIC-NEXT:    li a4, 5
+; RV64-NO-ATOMIC-NEXT:    mv a0, s0
+; RV64-NO-ATOMIC-NEXT:    call __atomic_compare_exchange_8@plt
+; RV64-NO-ATOMIC-NEXT:    ld a1, 8(sp)
+; RV64-NO-ATOMIC-NEXT:    bnez a0, .LBB49_4
+; RV64-NO-ATOMIC-NEXT:  .LBB49_2: # %atomicrmw.start
+; RV64-NO-ATOMIC-NEXT:    # =>This Inner Loop Header: Depth=1
+; RV64-NO-ATOMIC-NEXT:    li a0, 1
+; RV64-NO-ATOMIC-NEXT:    mv a2, a1
+; RV64-NO-ATOMIC-NEXT:    blt a0, a1, .LBB49_1
+; RV64-NO-ATOMIC-NEXT:  # %bb.3: # %atomicrmw.start
+; RV64-NO-ATOMIC-NEXT:    # in Loop: Header=BB49_2 Depth=1
+; RV64-NO-ATOMIC-NEXT:    li a2, 1
+; RV64-NO-ATOMIC-NEXT:    j .LBB49_1
+; RV64-NO-ATOMIC-NEXT:  .LBB49_4: # %atomicrmw.end
+; RV64-NO-ATOMIC-NEXT:    mv a0, a1
+; RV64-NO-ATOMIC-NEXT:    ld ra, 24(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    ld s0, 16(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 32
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: rmw64_max_seq_cst:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    li a1, 1
+; RV64-ATOMIC-NEXT:    call __sync_fetch_and_max_8@plt
+; RV64-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-ATOMIC-NEXT:    ret
+  %v = atomicrmw max ptr %p, i64 1 seq_cst, align 8
+  ret i64 %v
+}
+
+define i64 @rmw64_min_seq_cst(ptr %p) nounwind {
+; RV32-LABEL: rmw64_min_seq_cst:
+; RV32:       # %bb.0:
+; RV32-NEXT:    addi sp, sp, -16
+; RV32-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-NEXT:    sw s0, 8(sp) # 4-byte Folded Spill
+; RV32-NEXT:    mv s0, a0
+; RV32-NEXT:    lw a1, 4(a0)
+; RV32-NEXT:    lw a4, 0(a0)
+; RV32-NEXT:    j .LBB50_2
+; RV32-NEXT:  .LBB50_1: # %atomicrmw.start
+; RV32-NEXT:    # in Loop: Header=BB50_2 Depth=1
+; RV32-NEXT:    sw a4, 0(sp)
+; RV32-NEXT:    sw a1, 4(sp)
+; RV32-NEXT:    mv a1, sp
+; RV32-NEXT:    li a4, 5
+; RV32-NEXT:    li a5, 5
+; RV32-NEXT:    mv a0, s0
+; RV32-NEXT:    call __atomic_compare_exchange_8@plt
+; RV32-NEXT:    lw a1, 4(sp)
+; RV32-NEXT:    lw a4, 0(sp)
+; RV32-NEXT:    bnez a0, .LBB50_7
+; RV32-NEXT:  .LBB50_2: # %atomicrmw.start
+; RV32-NEXT:    # =>This Inner Loop Header: Depth=1
+; RV32-NEXT:    beqz a1, .LBB50_4
+; RV32-NEXT:  # %bb.3: # %atomicrmw.start
+; RV32-NEXT:    # in Loop: Header=BB50_2 Depth=1
+; RV32-NEXT:    slti a0, a1, 0
+; RV32-NEXT:    j .LBB50_5
+; RV32-NEXT:  .LBB50_4: # in Loop: Header=BB50_2 Depth=1
+; RV32-NEXT:    sltiu a0, a4, 2
+; RV32-NEXT:  .LBB50_5: # %atomicrmw.start
+; RV32-NEXT:    # in Loop: Header=BB50_2 Depth=1
+; RV32-NEXT:    mv a2, a4
+; RV32-NEXT:    mv a3, a1
+; RV32-NEXT:    bnez a0, .LBB50_1
+; RV32-NEXT:  # %bb.6: # %atomicrmw.start
+; RV32-NEXT:    # in Loop: Header=BB50_2 Depth=1
+; RV32-NEXT:    li a3, 0
+; RV32-NEXT:    li a2, 1
+; RV32-NEXT:    j .LBB50_1
+; RV32-NEXT:  .LBB50_7: # %atomicrmw.end
+; RV32-NEXT:    mv a0, a4
+; RV32-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-NEXT:    lw s0, 8(sp) # 4-byte Folded Reload
+; RV32-NEXT:    addi sp, sp, 16
+; RV32-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: rmw64_min_seq_cst:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -32
+; RV64-NO-ATOMIC-NEXT:    sd ra, 24(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    sd s0, 16(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    sd s1, 8(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    mv s0, a0
+; RV64-NO-ATOMIC-NEXT:    ld a1, 0(a0)
+; RV64-NO-ATOMIC-NEXT:    li s1, 2
+; RV64-NO-ATOMIC-NEXT:    j .LBB50_2
+; RV64-NO-ATOMIC-NEXT:  .LBB50_1: # %atomicrmw.start
+; RV64-NO-ATOMIC-NEXT:    # in Loop: Header=BB50_2 Depth=1
+; RV64-NO-ATOMIC-NEXT:    sd a1, 0(sp)
+; RV64-NO-ATOMIC-NEXT:    mv a1, sp
+; RV64-NO-ATOMIC-NEXT:    li a3, 5
+; RV64-NO-ATOMIC-NEXT:    li a4, 5
+; RV64-NO-ATOMIC-NEXT:    mv a0, s0
+; RV64-NO-ATOMIC-NEXT:    call __atomic_compare_exchange_8@plt
+; RV64-NO-ATOMIC-NEXT:    ld a1, 0(sp)
+; RV64-NO-ATOMIC-NEXT:    bnez a0, .LBB50_4
+; RV64-NO-ATOMIC-NEXT:  .LBB50_2: # %atomicrmw.start
+; RV64-NO-ATOMIC-NEXT:    # =>This Inner Loop Header: Depth=1
+; RV64-NO-ATOMIC-NEXT:    mv a2, a1
+; RV64-NO-ATOMIC-NEXT:    blt a1, s1, .LBB50_1
+; RV64-NO-ATOMIC-NEXT:  # %bb.3: # %atomicrmw.start
+; RV64-NO-ATOMIC-NEXT:    # in Loop: Header=BB50_2 Depth=1
+; RV64-NO-ATOMIC-NEXT:    li a2, 1
+; RV64-NO-ATOMIC-NEXT:    j .LBB50_1
+; RV64-NO-ATOMIC-NEXT:  .LBB50_4: # %atomicrmw.end
+; RV64-NO-ATOMIC-NEXT:    mv a0, a1
+; RV64-NO-ATOMIC-NEXT:    ld ra, 24(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    ld s0, 16(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    ld s1, 8(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 32
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: rmw64_min_seq_cst:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    li a1, 1
+; RV64-ATOMIC-NEXT:    call __sync_fetch_and_min_8@plt
+; RV64-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-ATOMIC-NEXT:    ret
+  %v = atomicrmw min ptr %p, i64 1 seq_cst, align 8
+  ret i64 %v
+}
+
+define i64 @rmw64_umax_seq_cst(ptr %p) nounwind {
+; RV32-LABEL: rmw64_umax_seq_cst:
+; RV32:       # %bb.0:
+; RV32-NEXT:    addi sp, sp, -16
+; RV32-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-NEXT:    sw s0, 8(sp) # 4-byte Folded Spill
+; RV32-NEXT:    mv s0, a0
+; RV32-NEXT:    lw a1, 4(a0)
+; RV32-NEXT:    lw a4, 0(a0)
+; RV32-NEXT:    j .LBB51_2
+; RV32-NEXT:  .LBB51_1: # %atomicrmw.start
+; RV32-NEXT:    # in Loop: Header=BB51_2 Depth=1
+; RV32-NEXT:    sw a4, 0(sp)
+; RV32-NEXT:    sw a1, 4(sp)
+; RV32-NEXT:    mv a1, sp
+; RV32-NEXT:    li a4, 5
+; RV32-NEXT:    li a5, 5
+; RV32-NEXT:    mv a0, s0
+; RV32-NEXT:    call __atomic_compare_exchange_8@plt
+; RV32-NEXT:    lw a1, 4(sp)
+; RV32-NEXT:    lw a4, 0(sp)
+; RV32-NEXT:    bnez a0, .LBB51_7
+; RV32-NEXT:  .LBB51_2: # %atomicrmw.start
+; RV32-NEXT:    # =>This Inner Loop Header: Depth=1
+; RV32-NEXT:    li a0, 1
+; RV32-NEXT:    beqz a1, .LBB51_4
+; RV32-NEXT:  # %bb.3: # %atomicrmw.start
+; RV32-NEXT:    # in Loop: Header=BB51_2 Depth=1
+; RV32-NEXT:    snez a0, a1
+; RV32-NEXT:    j .LBB51_5
+; RV32-NEXT:  .LBB51_4: # in Loop: Header=BB51_2 Depth=1
+; RV32-NEXT:    sltu a0, a0, a4
+; RV32-NEXT:  .LBB51_5: # %atomicrmw.start
+; RV32-NEXT:    # in Loop: Header=BB51_2 Depth=1
+; RV32-NEXT:    mv a2, a4
+; RV32-NEXT:    mv a3, a1
+; RV32-NEXT:    bnez a0, .LBB51_1
+; RV32-NEXT:  # %bb.6: # %atomicrmw.start
+; RV32-NEXT:    # in Loop: Header=BB51_2 Depth=1
+; RV32-NEXT:    li a3, 0
+; RV32-NEXT:    li a2, 1
+; RV32-NEXT:    j .LBB51_1
+; RV32-NEXT:  .LBB51_7: # %atomicrmw.end
+; RV32-NEXT:    mv a0, a4
+; RV32-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-NEXT:    lw s0, 8(sp) # 4-byte Folded Reload
+; RV32-NEXT:    addi sp, sp, 16
+; RV32-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: rmw64_umax_seq_cst:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -32
+; RV64-NO-ATOMIC-NEXT:    sd ra, 24(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    sd s0, 16(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    mv s0, a0
+; RV64-NO-ATOMIC-NEXT:    ld a1, 0(a0)
+; RV64-NO-ATOMIC-NEXT:    j .LBB51_2
+; RV64-NO-ATOMIC-NEXT:  .LBB51_1: # %atomicrmw.start
+; RV64-NO-ATOMIC-NEXT:    # in Loop: Header=BB51_2 Depth=1
+; RV64-NO-ATOMIC-NEXT:    sd a1, 8(sp)
+; RV64-NO-ATOMIC-NEXT:    addi a1, sp, 8
+; RV64-NO-ATOMIC-NEXT:    li a3, 5
+; RV64-NO-ATOMIC-NEXT:    li a4, 5
+; RV64-NO-ATOMIC-NEXT:    mv a0, s0
+; RV64-NO-ATOMIC-NEXT:    call __atomic_compare_exchange_8@plt
+; RV64-NO-ATOMIC-NEXT:    ld a1, 8(sp)
+; RV64-NO-ATOMIC-NEXT:    bnez a0, .LBB51_4
+; RV64-NO-ATOMIC-NEXT:  .LBB51_2: # %atomicrmw.start
+; RV64-NO-ATOMIC-NEXT:    # =>This Inner Loop Header: Depth=1
+; RV64-NO-ATOMIC-NEXT:    li a0, 1
+; RV64-NO-ATOMIC-NEXT:    mv a2, a1
+; RV64-NO-ATOMIC-NEXT:    bltu a0, a1, .LBB51_1
+; RV64-NO-ATOMIC-NEXT:  # %bb.3: # %atomicrmw.start
+; RV64-NO-ATOMIC-NEXT:    # in Loop: Header=BB51_2 Depth=1
+; RV64-NO-ATOMIC-NEXT:    li a2, 1
+; RV64-NO-ATOMIC-NEXT:    j .LBB51_1
+; RV64-NO-ATOMIC-NEXT:  .LBB51_4: # %atomicrmw.end
+; RV64-NO-ATOMIC-NEXT:    mv a0, a1
+; RV64-NO-ATOMIC-NEXT:    ld ra, 24(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    ld s0, 16(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 32
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: rmw64_umax_seq_cst:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    li a1, 1
+; RV64-ATOMIC-NEXT:    call __sync_fetch_and_umax_8@plt
+; RV64-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-ATOMIC-NEXT:    ret
+  %v = atomicrmw umax ptr %p, i64 1 seq_cst, align 8
+  ret i64 %v
+}
+
+define i64 @rmw64_umin_seq_cst(ptr %p) nounwind {
+; RV32-LABEL: rmw64_umin_seq_cst:
+; RV32:       # %bb.0:
+; RV32-NEXT:    addi sp, sp, -16
+; RV32-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-NEXT:    sw s0, 8(sp) # 4-byte Folded Spill
+; RV32-NEXT:    mv s0, a0
+; RV32-NEXT:    lw a1, 4(a0)
+; RV32-NEXT:    lw a4, 0(a0)
+; RV32-NEXT:    j .LBB52_2
+; RV32-NEXT:  .LBB52_1: # %atomicrmw.start
+; RV32-NEXT:    # in Loop: Header=BB52_2 Depth=1
+; RV32-NEXT:    sw a4, 0(sp)
+; RV32-NEXT:    sw a1, 4(sp)
+; RV32-NEXT:    mv a1, sp
+; RV32-NEXT:    li a4, 5
+; RV32-NEXT:    li a5, 5
+; RV32-NEXT:    mv a0, s0
+; RV32-NEXT:    call __atomic_compare_exchange_8@plt
+; RV32-NEXT:    lw a1, 4(sp)
+; RV32-NEXT:    lw a4, 0(sp)
+; RV32-NEXT:    bnez a0, .LBB52_7
+; RV32-NEXT:  .LBB52_2: # %atomicrmw.start
+; RV32-NEXT:    # =>This Inner Loop Header: Depth=1
+; RV32-NEXT:    beqz a1, .LBB52_4
+; RV32-NEXT:  # %bb.3: # %atomicrmw.start
+; RV32-NEXT:    # in Loop: Header=BB52_2 Depth=1
+; RV32-NEXT:    li a0, 0
+; RV32-NEXT:    j .LBB52_5
+; RV32-NEXT:  .LBB52_4: # in Loop: Header=BB52_2 Depth=1
+; RV32-NEXT:    sltiu a0, a4, 2
+; RV32-NEXT:  .LBB52_5: # %atomicrmw.start
+; RV32-NEXT:    # in Loop: Header=BB52_2 Depth=1
+; RV32-NEXT:    mv a2, a4
+; RV32-NEXT:    mv a3, a1
+; RV32-NEXT:    bnez a0, .LBB52_1
+; RV32-NEXT:  # %bb.6: # %atomicrmw.start
+; RV32-NEXT:    # in Loop: Header=BB52_2 Depth=1
+; RV32-NEXT:    li a3, 0
+; RV32-NEXT:    li a2, 1
+; RV32-NEXT:    j .LBB52_1
+; RV32-NEXT:  .LBB52_7: # %atomicrmw.end
+; RV32-NEXT:    mv a0, a4
+; RV32-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-NEXT:    lw s0, 8(sp) # 4-byte Folded Reload
+; RV32-NEXT:    addi sp, sp, 16
+; RV32-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: rmw64_umin_seq_cst:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -32
+; RV64-NO-ATOMIC-NEXT:    sd ra, 24(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    sd s0, 16(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    sd s1, 8(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    mv s0, a0
+; RV64-NO-ATOMIC-NEXT:    ld a1, 0(a0)
+; RV64-NO-ATOMIC-NEXT:    li s1, 2
+; RV64-NO-ATOMIC-NEXT:    j .LBB52_2
+; RV64-NO-ATOMIC-NEXT:  .LBB52_1: # %atomicrmw.start
+; RV64-NO-ATOMIC-NEXT:    # in Loop: Header=BB52_2 Depth=1
+; RV64-NO-ATOMIC-NEXT:    sd a1, 0(sp)
+; RV64-NO-ATOMIC-NEXT:    mv a1, sp
+; RV64-NO-ATOMIC-NEXT:    li a3, 5
+; RV64-NO-ATOMIC-NEXT:    li a4, 5
+; RV64-NO-ATOMIC-NEXT:    mv a0, s0
+; RV64-NO-ATOMIC-NEXT:    call __atomic_compare_exchange_8@plt
+; RV64-NO-ATOMIC-NEXT:    ld a1, 0(sp)
+; RV64-NO-ATOMIC-NEXT:    bnez a0, .LBB52_4
+; RV64-NO-ATOMIC-NEXT:  .LBB52_2: # %atomicrmw.start
+; RV64-NO-ATOMIC-NEXT:    # =>This Inner Loop Header: Depth=1
+; RV64-NO-ATOMIC-NEXT:    mv a2, a1
+; RV64-NO-ATOMIC-NEXT:    bltu a1, s1, .LBB52_1
+; RV64-NO-ATOMIC-NEXT:  # %bb.3: # %atomicrmw.start
+; RV64-NO-ATOMIC-NEXT:    # in Loop: Header=BB52_2 Depth=1
+; RV64-NO-ATOMIC-NEXT:    li a2, 1
+; RV64-NO-ATOMIC-NEXT:    j .LBB52_1
+; RV64-NO-ATOMIC-NEXT:  .LBB52_4: # %atomicrmw.end
+; RV64-NO-ATOMIC-NEXT:    mv a0, a1
+; RV64-NO-ATOMIC-NEXT:    ld ra, 24(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    ld s0, 16(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    ld s1, 8(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 32
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: rmw64_umin_seq_cst:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    li a1, 1
+; RV64-ATOMIC-NEXT:    call __sync_fetch_and_umin_8@plt
+; RV64-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-ATOMIC-NEXT:    ret
+  %v = atomicrmw umin ptr %p, i64 1 seq_cst, align 8
+  ret i64 %v
+}
+
+define i64 @rmw64_xchg_seq_cst(ptr %p) nounwind {
+; RV32-LABEL: rmw64_xchg_seq_cst:
+; RV32:       # %bb.0:
+; RV32-NEXT:    addi sp, sp, -16
+; RV32-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-NEXT:    li a1, 1
+; RV32-NEXT:    li a3, 5
+; RV32-NEXT:    li a2, 0
+; RV32-NEXT:    call __atomic_exchange_8@plt
+; RV32-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-NEXT:    addi sp, sp, 16
+; RV32-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: rmw64_xchg_seq_cst:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-NO-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    li a1, 1
+; RV64-NO-ATOMIC-NEXT:    li a2, 5
+; RV64-NO-ATOMIC-NEXT:    call __atomic_exchange_8@plt
+; RV64-NO-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: rmw64_xchg_seq_cst:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    li a1, 1
+; RV64-ATOMIC-NEXT:    call __sync_lock_test_and_set_8@plt
+; RV64-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-ATOMIC-NEXT:    ret
+  %v = atomicrmw xchg ptr %p, i64 1 seq_cst, align 8
+  ret i64 %v
+}
+
+define double @rmw64_fadd_seq_cst(ptr %p) nounwind {
+; RV32-LABEL: rmw64_fadd_seq_cst:
+; RV32:       # %bb.0:
+; RV32-NEXT:    addi sp, sp, -32
+; RV32-NEXT:    sw ra, 28(sp) # 4-byte Folded Spill
+; RV32-NEXT:    sw s0, 24(sp) # 4-byte Folded Spill
+; RV32-NEXT:    sw s1, 20(sp) # 4-byte Folded Spill
+; RV32-NEXT:    sw s2, 16(sp) # 4-byte Folded Spill
+; RV32-NEXT:    mv s0, a0
+; RV32-NEXT:    lw s1, 4(a0)
+; RV32-NEXT:    lw s2, 0(a0)
+; RV32-NEXT:  .LBB54_1: # %atomicrmw.start
+; RV32-NEXT:    # =>This Inner Loop Header: Depth=1
+; RV32-NEXT:    lui a3, 261888
+; RV32-NEXT:    mv a0, s2
+; RV32-NEXT:    mv a1, s1
+; RV32-NEXT:    li a2, 0
+; RV32-NEXT:    call __adddf3@plt
+; RV32-NEXT:    mv a2, a0
+; RV32-NEXT:    mv a3, a1
+; RV32-NEXT:    sw s2, 8(sp)
+; RV32-NEXT:    sw s1, 12(sp)
+; RV32-NEXT:    addi a1, sp, 8
+; RV32-NEXT:    li a4, 5
+; RV32-NEXT:    li a5, 5
+; RV32-NEXT:    mv a0, s0
+; RV32-NEXT:    call __atomic_compare_exchange_8@plt
+; RV32-NEXT:    lw s1, 12(sp)
+; RV32-NEXT:    lw s2, 8(sp)
+; RV32-NEXT:    beqz a0, .LBB54_1
+; RV32-NEXT:  # %bb.2: # %atomicrmw.end
+; RV32-NEXT:    mv a0, s2
+; RV32-NEXT:    mv a1, s1
+; RV32-NEXT:    lw ra, 28(sp) # 4-byte Folded Reload
+; RV32-NEXT:    lw s0, 24(sp) # 4-byte Folded Reload
+; RV32-NEXT:    lw s1, 20(sp) # 4-byte Folded Reload
+; RV32-NEXT:    lw s2, 16(sp) # 4-byte Folded Reload
+; RV32-NEXT:    addi sp, sp, 32
+; RV32-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: rmw64_fadd_seq_cst:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -48
+; RV64-NO-ATOMIC-NEXT:    sd ra, 40(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    sd s0, 32(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    sd s1, 24(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    sd s2, 16(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    mv s0, a0
+; RV64-NO-ATOMIC-NEXT:    ld s2, 0(a0)
+; RV64-NO-ATOMIC-NEXT:    li a0, 1023
+; RV64-NO-ATOMIC-NEXT:    slli s1, a0, 52
+; RV64-NO-ATOMIC-NEXT:  .LBB54_1: # %atomicrmw.start
+; RV64-NO-ATOMIC-NEXT:    # =>This Inner Loop Header: Depth=1
+; RV64-NO-ATOMIC-NEXT:    mv a0, s2
+; RV64-NO-ATOMIC-NEXT:    mv a1, s1
+; RV64-NO-ATOMIC-NEXT:    call __adddf3@plt
+; RV64-NO-ATOMIC-NEXT:    mv a2, a0
+; RV64-NO-ATOMIC-NEXT:    sd s2, 8(sp)
+; RV64-NO-ATOMIC-NEXT:    addi a1, sp, 8
+; RV64-NO-ATOMIC-NEXT:    li a3, 5
+; RV64-NO-ATOMIC-NEXT:    li a4, 5
+; RV64-NO-ATOMIC-NEXT:    mv a0, s0
+; RV64-NO-ATOMIC-NEXT:    call __atomic_compare_exchange_8@plt
+; RV64-NO-ATOMIC-NEXT:    ld s2, 8(sp)
+; RV64-NO-ATOMIC-NEXT:    beqz a0, .LBB54_1
+; RV64-NO-ATOMIC-NEXT:  # %bb.2: # %atomicrmw.end
+; RV64-NO-ATOMIC-NEXT:    mv a0, s2
+; RV64-NO-ATOMIC-NEXT:    ld ra, 40(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    ld s0, 32(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    ld s1, 24(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    ld s2, 16(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 48
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: rmw64_fadd_seq_cst:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    addi sp, sp, -32
+; RV64-ATOMIC-NEXT:    sd ra, 24(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    sd s0, 16(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    sd s1, 8(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    sd s2, 0(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    mv s0, a0
+; RV64-ATOMIC-NEXT:    ld a0, 0(a0)
+; RV64-ATOMIC-NEXT:    li a1, 1023
+; RV64-ATOMIC-NEXT:    slli s1, a1, 52
+; RV64-ATOMIC-NEXT:  .LBB54_1: # %atomicrmw.start
+; RV64-ATOMIC-NEXT:    # =>This Inner Loop Header: Depth=1
+; RV64-ATOMIC-NEXT:    mv s2, a0
+; RV64-ATOMIC-NEXT:    mv a1, s1
+; RV64-ATOMIC-NEXT:    call __adddf3@plt
+; RV64-ATOMIC-NEXT:    mv a2, a0
+; RV64-ATOMIC-NEXT:    mv a0, s0
+; RV64-ATOMIC-NEXT:    mv a1, s2
+; RV64-ATOMIC-NEXT:    call __sync_val_compare_and_swap_8@plt
+; RV64-ATOMIC-NEXT:    bne a0, s2, .LBB54_1
+; RV64-ATOMIC-NEXT:  # %bb.2: # %atomicrmw.end
+; RV64-ATOMIC-NEXT:    ld ra, 24(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    ld s0, 16(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    ld s1, 8(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    ld s2, 0(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    addi sp, sp, 32
+; RV64-ATOMIC-NEXT:    ret
+  %v = atomicrmw fadd ptr %p, double 1.0 seq_cst, align 8
+  ret double %v
+}
+
+define double @rmw64_fsub_seq_cst(ptr %p) nounwind {
+; RV32-LABEL: rmw64_fsub_seq_cst:
+; RV32:       # %bb.0:
+; RV32-NEXT:    addi sp, sp, -32
+; RV32-NEXT:    sw ra, 28(sp) # 4-byte Folded Spill
+; RV32-NEXT:    sw s0, 24(sp) # 4-byte Folded Spill
+; RV32-NEXT:    sw s1, 20(sp) # 4-byte Folded Spill
+; RV32-NEXT:    sw s2, 16(sp) # 4-byte Folded Spill
+; RV32-NEXT:    mv s0, a0
+; RV32-NEXT:    lw s1, 4(a0)
+; RV32-NEXT:    lw s2, 0(a0)
+; RV32-NEXT:  .LBB55_1: # %atomicrmw.start
+; RV32-NEXT:    # =>This Inner Loop Header: Depth=1
+; RV32-NEXT:    lui a3, 786176
+; RV32-NEXT:    mv a0, s2
+; RV32-NEXT:    mv a1, s1
+; RV32-NEXT:    li a2, 0
+; RV32-NEXT:    call __adddf3@plt
+; RV32-NEXT:    mv a2, a0
+; RV32-NEXT:    mv a3, a1
+; RV32-NEXT:    sw s2, 8(sp)
+; RV32-NEXT:    sw s1, 12(sp)
+; RV32-NEXT:    addi a1, sp, 8
+; RV32-NEXT:    li a4, 5
+; RV32-NEXT:    li a5, 5
+; RV32-NEXT:    mv a0, s0
+; RV32-NEXT:    call __atomic_compare_exchange_8@plt
+; RV32-NEXT:    lw s1, 12(sp)
+; RV32-NEXT:    lw s2, 8(sp)
+; RV32-NEXT:    beqz a0, .LBB55_1
+; RV32-NEXT:  # %bb.2: # %atomicrmw.end
+; RV32-NEXT:    mv a0, s2
+; RV32-NEXT:    mv a1, s1
+; RV32-NEXT:    lw ra, 28(sp) # 4-byte Folded Reload
+; RV32-NEXT:    lw s0, 24(sp) # 4-byte Folded Reload
+; RV32-NEXT:    lw s1, 20(sp) # 4-byte Folded Reload
+; RV32-NEXT:    lw s2, 16(sp) # 4-byte Folded Reload
+; RV32-NEXT:    addi sp, sp, 32
+; RV32-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: rmw64_fsub_seq_cst:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -48
+; RV64-NO-ATOMIC-NEXT:    sd ra, 40(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    sd s0, 32(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    sd s1, 24(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    sd s2, 16(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    mv s0, a0
+; RV64-NO-ATOMIC-NEXT:    ld s2, 0(a0)
+; RV64-NO-ATOMIC-NEXT:    li a0, -1025
+; RV64-NO-ATOMIC-NEXT:    slli s1, a0, 52
+; RV64-NO-ATOMIC-NEXT:  .LBB55_1: # %atomicrmw.start
+; RV64-NO-ATOMIC-NEXT:    # =>This Inner Loop Header: Depth=1
+; RV64-NO-ATOMIC-NEXT:    mv a0, s2
+; RV64-NO-ATOMIC-NEXT:    mv a1, s1
+; RV64-NO-ATOMIC-NEXT:    call __adddf3@plt
+; RV64-NO-ATOMIC-NEXT:    mv a2, a0
+; RV64-NO-ATOMIC-NEXT:    sd s2, 8(sp)
+; RV64-NO-ATOMIC-NEXT:    addi a1, sp, 8
+; RV64-NO-ATOMIC-NEXT:    li a3, 5
+; RV64-NO-ATOMIC-NEXT:    li a4, 5
+; RV64-NO-ATOMIC-NEXT:    mv a0, s0
+; RV64-NO-ATOMIC-NEXT:    call __atomic_compare_exchange_8@plt
+; RV64-NO-ATOMIC-NEXT:    ld s2, 8(sp)
+; RV64-NO-ATOMIC-NEXT:    beqz a0, .LBB55_1
+; RV64-NO-ATOMIC-NEXT:  # %bb.2: # %atomicrmw.end
+; RV64-NO-ATOMIC-NEXT:    mv a0, s2
+; RV64-NO-ATOMIC-NEXT:    ld ra, 40(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    ld s0, 32(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    ld s1, 24(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    ld s2, 16(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 48
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: rmw64_fsub_seq_cst:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    addi sp, sp, -32
+; RV64-ATOMIC-NEXT:    sd ra, 24(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    sd s0, 16(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    sd s1, 8(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    sd s2, 0(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    mv s0, a0
+; RV64-ATOMIC-NEXT:    ld a0, 0(a0)
+; RV64-ATOMIC-NEXT:    li a1, -1025
+; RV64-ATOMIC-NEXT:    slli s1, a1, 52
+; RV64-ATOMIC-NEXT:  .LBB55_1: # %atomicrmw.start
+; RV64-ATOMIC-NEXT:    # =>This Inner Loop Header: Depth=1
+; RV64-ATOMIC-NEXT:    mv s2, a0
+; RV64-ATOMIC-NEXT:    mv a1, s1
+; RV64-ATOMIC-NEXT:    call __adddf3@plt
+; RV64-ATOMIC-NEXT:    mv a2, a0
+; RV64-ATOMIC-NEXT:    mv a0, s0
+; RV64-ATOMIC-NEXT:    mv a1, s2
+; RV64-ATOMIC-NEXT:    call __sync_val_compare_and_swap_8@plt
+; RV64-ATOMIC-NEXT:    bne a0, s2, .LBB55_1
+; RV64-ATOMIC-NEXT:  # %bb.2: # %atomicrmw.end
+; RV64-ATOMIC-NEXT:    ld ra, 24(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    ld s0, 16(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    ld s1, 8(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    ld s2, 0(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    addi sp, sp, 32
+; RV64-ATOMIC-NEXT:    ret
+  %v = atomicrmw fsub ptr %p, double 1.0 seq_cst, align 8
+  ret double %v
+}
+
+define double @rmw64_fmin_seq_cst(ptr %p) nounwind {
+; RV32-LABEL: rmw64_fmin_seq_cst:
+; RV32:       # %bb.0:
+; RV32-NEXT:    addi sp, sp, -32
+; RV32-NEXT:    sw ra, 28(sp) # 4-byte Folded Spill
+; RV32-NEXT:    sw s0, 24(sp) # 4-byte Folded Spill
+; RV32-NEXT:    sw s1, 20(sp) # 4-byte Folded Spill
+; RV32-NEXT:    sw s2, 16(sp) # 4-byte Folded Spill
+; RV32-NEXT:    mv s0, a0
+; RV32-NEXT:    lw s1, 4(a0)
+; RV32-NEXT:    lw s2, 0(a0)
+; RV32-NEXT:  .LBB56_1: # %atomicrmw.start
+; RV32-NEXT:    # =>This Inner Loop Header: Depth=1
+; RV32-NEXT:    lui a3, 261888
+; RV32-NEXT:    mv a0, s2
+; RV32-NEXT:    mv a1, s1
+; RV32-NEXT:    li a2, 0
+; RV32-NEXT:    call fmin@plt
+; RV32-NEXT:    mv a2, a0
+; RV32-NEXT:    mv a3, a1
+; RV32-NEXT:    sw s2, 8(sp)
+; RV32-NEXT:    sw s1, 12(sp)
+; RV32-NEXT:    addi a1, sp, 8
+; RV32-NEXT:    li a4, 5
+; RV32-NEXT:    li a5, 5
+; RV32-NEXT:    mv a0, s0
+; RV32-NEXT:    call __atomic_compare_exchange_8@plt
+; RV32-NEXT:    lw s1, 12(sp)
+; RV32-NEXT:    lw s2, 8(sp)
+; RV32-NEXT:    beqz a0, .LBB56_1
+; RV32-NEXT:  # %bb.2: # %atomicrmw.end
+; RV32-NEXT:    mv a0, s2
+; RV32-NEXT:    mv a1, s1
+; RV32-NEXT:    lw ra, 28(sp) # 4-byte Folded Reload
+; RV32-NEXT:    lw s0, 24(sp) # 4-byte Folded Reload
+; RV32-NEXT:    lw s1, 20(sp) # 4-byte Folded Reload
+; RV32-NEXT:    lw s2, 16(sp) # 4-byte Folded Reload
+; RV32-NEXT:    addi sp, sp, 32
+; RV32-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: rmw64_fmin_seq_cst:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -48
+; RV64-NO-ATOMIC-NEXT:    sd ra, 40(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    sd s0, 32(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    sd s1, 24(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    sd s2, 16(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    mv s0, a0
+; RV64-NO-ATOMIC-NEXT:    ld s2, 0(a0)
+; RV64-NO-ATOMIC-NEXT:    li a0, 1023
+; RV64-NO-ATOMIC-NEXT:    slli s1, a0, 52
+; RV64-NO-ATOMIC-NEXT:  .LBB56_1: # %atomicrmw.start
+; RV64-NO-ATOMIC-NEXT:    # =>This Inner Loop Header: Depth=1
+; RV64-NO-ATOMIC-NEXT:    mv a0, s2
+; RV64-NO-ATOMIC-NEXT:    mv a1, s1
+; RV64-NO-ATOMIC-NEXT:    call fmin@plt
+; RV64-NO-ATOMIC-NEXT:    mv a2, a0
+; RV64-NO-ATOMIC-NEXT:    sd s2, 8(sp)
+; RV64-NO-ATOMIC-NEXT:    addi a1, sp, 8
+; RV64-NO-ATOMIC-NEXT:    li a3, 5
+; RV64-NO-ATOMIC-NEXT:    li a4, 5
+; RV64-NO-ATOMIC-NEXT:    mv a0, s0
+; RV64-NO-ATOMIC-NEXT:    call __atomic_compare_exchange_8@plt
+; RV64-NO-ATOMIC-NEXT:    ld s2, 8(sp)
+; RV64-NO-ATOMIC-NEXT:    beqz a0, .LBB56_1
+; RV64-NO-ATOMIC-NEXT:  # %bb.2: # %atomicrmw.end
+; RV64-NO-ATOMIC-NEXT:    mv a0, s2
+; RV64-NO-ATOMIC-NEXT:    ld ra, 40(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    ld s0, 32(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    ld s1, 24(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    ld s2, 16(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 48
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: rmw64_fmin_seq_cst:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    addi sp, sp, -32
+; RV64-ATOMIC-NEXT:    sd ra, 24(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    sd s0, 16(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    sd s1, 8(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    sd s2, 0(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    mv s0, a0
+; RV64-ATOMIC-NEXT:    ld a0, 0(a0)
+; RV64-ATOMIC-NEXT:    li a1, 1023
+; RV64-ATOMIC-NEXT:    slli s1, a1, 52
+; RV64-ATOMIC-NEXT:  .LBB56_1: # %atomicrmw.start
+; RV64-ATOMIC-NEXT:    # =>This Inner Loop Header: Depth=1
+; RV64-ATOMIC-NEXT:    mv s2, a0
+; RV64-ATOMIC-NEXT:    mv a1, s1
+; RV64-ATOMIC-NEXT:    call fmin@plt
+; RV64-ATOMIC-NEXT:    mv a2, a0
+; RV64-ATOMIC-NEXT:    mv a0, s0
+; RV64-ATOMIC-NEXT:    mv a1, s2
+; RV64-ATOMIC-NEXT:    call __sync_val_compare_and_swap_8@plt
+; RV64-ATOMIC-NEXT:    bne a0, s2, .LBB56_1
+; RV64-ATOMIC-NEXT:  # %bb.2: # %atomicrmw.end
+; RV64-ATOMIC-NEXT:    ld ra, 24(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    ld s0, 16(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    ld s1, 8(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    ld s2, 0(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    addi sp, sp, 32
+; RV64-ATOMIC-NEXT:    ret
+  %v = atomicrmw fmin ptr %p, double 1.0 seq_cst, align 8
+  ret double %v
+}
+
+define double @rmw64_fmax_seq_cst(ptr %p) nounwind {
+; RV32-LABEL: rmw64_fmax_seq_cst:
+; RV32:       # %bb.0:
+; RV32-NEXT:    addi sp, sp, -32
+; RV32-NEXT:    sw ra, 28(sp) # 4-byte Folded Spill
+; RV32-NEXT:    sw s0, 24(sp) # 4-byte Folded Spill
+; RV32-NEXT:    sw s1, 20(sp) # 4-byte Folded Spill
+; RV32-NEXT:    sw s2, 16(sp) # 4-byte Folded Spill
+; RV32-NEXT:    mv s0, a0
+; RV32-NEXT:    lw s1, 4(a0)
+; RV32-NEXT:    lw s2, 0(a0)
+; RV32-NEXT:  .LBB57_1: # %atomicrmw.start
+; RV32-NEXT:    # =>This Inner Loop Header: Depth=1
+; RV32-NEXT:    lui a3, 261888
+; RV32-NEXT:    mv a0, s2
+; RV32-NEXT:    mv a1, s1
+; RV32-NEXT:    li a2, 0
+; RV32-NEXT:    call fmax@plt
+; RV32-NEXT:    mv a2, a0
+; RV32-NEXT:    mv a3, a1
+; RV32-NEXT:    sw s2, 8(sp)
+; RV32-NEXT:    sw s1, 12(sp)
+; RV32-NEXT:    addi a1, sp, 8
+; RV32-NEXT:    li a4, 5
+; RV32-NEXT:    li a5, 5
+; RV32-NEXT:    mv a0, s0
+; RV32-NEXT:    call __atomic_compare_exchange_8@plt
+; RV32-NEXT:    lw s1, 12(sp)
+; RV32-NEXT:    lw s2, 8(sp)
+; RV32-NEXT:    beqz a0, .LBB57_1
+; RV32-NEXT:  # %bb.2: # %atomicrmw.end
+; RV32-NEXT:    mv a0, s2
+; RV32-NEXT:    mv a1, s1
+; RV32-NEXT:    lw ra, 28(sp) # 4-byte Folded Reload
+; RV32-NEXT:    lw s0, 24(sp) # 4-byte Folded Reload
+; RV32-NEXT:    lw s1, 20(sp) # 4-byte Folded Reload
+; RV32-NEXT:    lw s2, 16(sp) # 4-byte Folded Reload
+; RV32-NEXT:    addi sp, sp, 32
+; RV32-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: rmw64_fmax_seq_cst:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -48
+; RV64-NO-ATOMIC-NEXT:    sd ra, 40(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    sd s0, 32(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    sd s1, 24(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    sd s2, 16(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    mv s0, a0
+; RV64-NO-ATOMIC-NEXT:    ld s2, 0(a0)
+; RV64-NO-ATOMIC-NEXT:    li a0, 1023
+; RV64-NO-ATOMIC-NEXT:    slli s1, a0, 52
+; RV64-NO-ATOMIC-NEXT:  .LBB57_1: # %atomicrmw.start
+; RV64-NO-ATOMIC-NEXT:    # =>This Inner Loop Header: Depth=1
+; RV64-NO-ATOMIC-NEXT:    mv a0, s2
+; RV64-NO-ATOMIC-NEXT:    mv a1, s1
+; RV64-NO-ATOMIC-NEXT:    call fmax@plt
+; RV64-NO-ATOMIC-NEXT:    mv a2, a0
+; RV64-NO-ATOMIC-NEXT:    sd s2, 8(sp)
+; RV64-NO-ATOMIC-NEXT:    addi a1, sp, 8
+; RV64-NO-ATOMIC-NEXT:    li a3, 5
+; RV64-NO-ATOMIC-NEXT:    li a4, 5
+; RV64-NO-ATOMIC-NEXT:    mv a0, s0
+; RV64-NO-ATOMIC-NEXT:    call __atomic_compare_exchange_8@plt
+; RV64-NO-ATOMIC-NEXT:    ld s2, 8(sp)
+; RV64-NO-ATOMIC-NEXT:    beqz a0, .LBB57_1
+; RV64-NO-ATOMIC-NEXT:  # %bb.2: # %atomicrmw.end
+; RV64-NO-ATOMIC-NEXT:    mv a0, s2
+; RV64-NO-ATOMIC-NEXT:    ld ra, 40(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    ld s0, 32(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    ld s1, 24(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    ld s2, 16(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 48
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: rmw64_fmax_seq_cst:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    addi sp, sp, -32
+; RV64-ATOMIC-NEXT:    sd ra, 24(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    sd s0, 16(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    sd s1, 8(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    sd s2, 0(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    mv s0, a0
+; RV64-ATOMIC-NEXT:    ld a0, 0(a0)
+; RV64-ATOMIC-NEXT:    li a1, 1023
+; RV64-ATOMIC-NEXT:    slli s1, a1, 52
+; RV64-ATOMIC-NEXT:  .LBB57_1: # %atomicrmw.start
+; RV64-ATOMIC-NEXT:    # =>This Inner Loop Header: Depth=1
+; RV64-ATOMIC-NEXT:    mv s2, a0
+; RV64-ATOMIC-NEXT:    mv a1, s1
+; RV64-ATOMIC-NEXT:    call fmax@plt
+; RV64-ATOMIC-NEXT:    mv a2, a0
+; RV64-ATOMIC-NEXT:    mv a0, s0
+; RV64-ATOMIC-NEXT:    mv a1, s2
+; RV64-ATOMIC-NEXT:    call __sync_val_compare_and_swap_8@plt
+; RV64-ATOMIC-NEXT:    bne a0, s2, .LBB57_1
+; RV64-ATOMIC-NEXT:  # %bb.2: # %atomicrmw.end
+; RV64-ATOMIC-NEXT:    ld ra, 24(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    ld s0, 16(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    ld s1, 8(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    ld s2, 0(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    addi sp, sp, 32
+; RV64-ATOMIC-NEXT:    ret
+  %v = atomicrmw fmax ptr %p, double 1.0 seq_cst, align 8
+  ret double %v
+}
+
+define i64 @cmpxchg64_monotonic(ptr %p) nounwind {
+; RV32-LABEL: cmpxchg64_monotonic:
+; RV32:       # %bb.0:
+; RV32-NEXT:    addi sp, sp, -16
+; RV32-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-NEXT:    sw zero, 4(sp)
+; RV32-NEXT:    sw zero, 0(sp)
+; RV32-NEXT:    mv a1, sp
+; RV32-NEXT:    li a2, 1
+; RV32-NEXT:    li a3, 0
+; RV32-NEXT:    li a4, 0
+; RV32-NEXT:    li a5, 0
+; RV32-NEXT:    call __atomic_compare_exchange_8@plt
+; RV32-NEXT:    lw a1, 4(sp)
+; RV32-NEXT:    lw a0, 0(sp)
+; RV32-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-NEXT:    addi sp, sp, 16
+; RV32-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: cmpxchg64_monotonic:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-NO-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    sd zero, 0(sp)
+; RV64-NO-ATOMIC-NEXT:    mv a1, sp
+; RV64-NO-ATOMIC-NEXT:    li a2, 1
+; RV64-NO-ATOMIC-NEXT:    li a3, 0
+; RV64-NO-ATOMIC-NEXT:    li a4, 0
+; RV64-NO-ATOMIC-NEXT:    call __atomic_compare_exchange_8@plt
+; RV64-NO-ATOMIC-NEXT:    ld a0, 0(sp)
+; RV64-NO-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: cmpxchg64_monotonic:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    li a2, 1
+; RV64-ATOMIC-NEXT:    li a1, 0
+; RV64-ATOMIC-NEXT:    call __sync_val_compare_and_swap_8@plt
+; RV64-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-ATOMIC-NEXT:    ret
+  %res = cmpxchg ptr %p, i64 0, i64 1 monotonic monotonic
+  %res.0 = extractvalue { i64, i1 } %res, 0
+  ret i64 %res.0
+}
+
+define i64 @cmpxchg64_seq_cst(ptr %p) nounwind {
+; RV32-LABEL: cmpxchg64_seq_cst:
+; RV32:       # %bb.0:
+; RV32-NEXT:    addi sp, sp, -16
+; RV32-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32-NEXT:    sw zero, 4(sp)
+; RV32-NEXT:    sw zero, 0(sp)
+; RV32-NEXT:    mv a1, sp
+; RV32-NEXT:    li a2, 1
+; RV32-NEXT:    li a4, 5
+; RV32-NEXT:    li a5, 5
+; RV32-NEXT:    li a3, 0
+; RV32-NEXT:    call __atomic_compare_exchange_8@plt
+; RV32-NEXT:    lw a1, 4(sp)
+; RV32-NEXT:    lw a0, 0(sp)
+; RV32-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32-NEXT:    addi sp, sp, 16
+; RV32-NEXT:    ret
+;
+; RV64-NO-ATOMIC-LABEL: cmpxchg64_seq_cst:
+; RV64-NO-ATOMIC:       # %bb.0:
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-NO-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-NO-ATOMIC-NEXT:    sd zero, 0(sp)
+; RV64-NO-ATOMIC-NEXT:    mv a1, sp
+; RV64-NO-ATOMIC-NEXT:    li a2, 1
+; RV64-NO-ATOMIC-NEXT:    li a3, 5
+; RV64-NO-ATOMIC-NEXT:    li a4, 5
+; RV64-NO-ATOMIC-NEXT:    call __atomic_compare_exchange_8@plt
+; RV64-NO-ATOMIC-NEXT:    ld a0, 0(sp)
+; RV64-NO-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-NO-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-NO-ATOMIC-NEXT:    ret
+;
+; RV64-ATOMIC-LABEL: cmpxchg64_seq_cst:
+; RV64-ATOMIC:       # %bb.0:
+; RV64-ATOMIC-NEXT:    addi sp, sp, -16
+; RV64-ATOMIC-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-ATOMIC-NEXT:    li a2, 1
+; RV64-ATOMIC-NEXT:    li a1, 0
+; RV64-ATOMIC-NEXT:    call __sync_val_compare_and_swap_8@plt
+; RV64-ATOMIC-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-ATOMIC-NEXT:    addi sp, sp, 16
+; RV64-ATOMIC-NEXT:    ret
+  %res = cmpxchg ptr %p, i64 0, i64 1 seq_cst seq_cst
+  %res.0 = extractvalue { i64, i1 } %res, 0
+  ret i64 %res.0
+}
+
+define i128 @load128(ptr %p) nounwind {
+; RV32-LABEL: load128:
+; RV32:       # %bb.0:
+; RV32-NEXT:    addi sp, sp, -32
+; RV32-NEXT:    sw ra, 28(sp) # 4-byte Folded Spill
+; RV32-NEXT:    sw s0, 24(sp) # 4-byte Folded Spill
+; RV32-NEXT:    mv s0, a0
+; RV32-NEXT:    li a0, 16
+; RV32-NEXT:    addi a2, sp, 8
+; RV32-NEXT:    li a3, 5
+; RV32-NEXT:    call __atomic_load@plt
+; RV32-NEXT:    lw a0, 20(sp)
+; RV32-NEXT:    lw a1, 16(sp)
+; RV32-NEXT:    lw a2, 12(sp)
+; RV32-NEXT:    lw a3, 8(sp)
+; RV32-NEXT:    sw a0, 12(s0)
+; RV32-NEXT:    sw a1, 8(s0)
+; RV32-NEXT:    sw a2, 4(s0)
+; RV32-NEXT:    sw a3, 0(s0)
+; RV32-NEXT:    lw ra, 28(sp) # 4-byte Folded Reload
+; RV32-NEXT:    lw s0, 24(sp) # 4-byte Folded Reload
+; RV32-NEXT:    addi sp, sp, 32
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: load128:
+; RV64:       # %bb.0:
+; RV64-NEXT:    addi sp, sp, -16
+; RV64-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-NEXT:    li a1, 5
+; RV64-NEXT:    call __atomic_load_16@plt
+; RV64-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-NEXT:    addi sp, sp, 16
+; RV64-NEXT:    ret
+  %v = load atomic i128, ptr %p seq_cst, align 16
+  ret i128 %v
+}
+
+define void @store128(ptr %p) nounwind {
+; RV32-LABEL: store128:
+; RV32:       # %bb.0:
+; RV32-NEXT:    addi sp, sp, -32
+; RV32-NEXT:    sw ra, 28(sp) # 4-byte Folded Spill
+; RV32-NEXT:    mv a1, a0
+; RV32-NEXT:    sw zero, 20(sp)
+; RV32-NEXT:    sw zero, 16(sp)
+; RV32-NEXT:    sw zero, 12(sp)
+; RV32-NEXT:    sw zero, 8(sp)
+; RV32-NEXT:    li a0, 16
+; RV32-NEXT:    addi a2, sp, 8
+; RV32-NEXT:    li a3, 5
+; RV32-NEXT:    call __atomic_store@plt
+; RV32-NEXT:    lw ra, 28(sp) # 4-byte Folded Reload
+; RV32-NEXT:    addi sp, sp, 32
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: store128:
+; RV64:       # %bb.0:
+; RV64-NEXT:    addi sp, sp, -16
+; RV64-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-NEXT:    li a3, 5
+; RV64-NEXT:    li a1, 0
+; RV64-NEXT:    li a2, 0
+; RV64-NEXT:    call __atomic_store_16@plt
+; RV64-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-NEXT:    addi sp, sp, 16
+; RV64-NEXT:    ret
+  store atomic i128 0, ptr %p seq_cst, align 16
+  ret void
+}
+
+define i128 @rmw128(ptr %p) nounwind {
+; RV32-LABEL: rmw128:
+; RV32:       # %bb.0:
+; RV32-NEXT:    addi sp, sp, -48
+; RV32-NEXT:    sw ra, 44(sp) # 4-byte Folded Spill
+; RV32-NEXT:    sw s0, 40(sp) # 4-byte Folded Spill
+; RV32-NEXT:    sw s1, 36(sp) # 4-byte Folded Spill
+; RV32-NEXT:    mv s0, a1
+; RV32-NEXT:    lw a1, 12(a1)
+; RV32-NEXT:    lw a2, 8(s0)
+; RV32-NEXT:    lw a3, 4(s0)
+; RV32-NEXT:    lw a4, 0(s0)
+; RV32-NEXT:    mv s1, a0
+; RV32-NEXT:    j .LBB62_2
+; RV32-NEXT:  .LBB62_1: # %atomicrmw.start
+; RV32-NEXT:    # in Loop: Header=BB62_2 Depth=1
+; RV32-NEXT:    add a6, a2, a6
+; RV32-NEXT:    sltu a7, a6, a2
+; RV32-NEXT:    add a7, a1, a7
+; RV32-NEXT:    sw a4, 16(sp)
+; RV32-NEXT:    sw a3, 20(sp)
+; RV32-NEXT:    sw a2, 24(sp)
+; RV32-NEXT:    sw a1, 28(sp)
+; RV32-NEXT:    sw a5, 4(sp)
+; RV32-NEXT:    sw a0, 0(sp)
+; RV32-NEXT:    sw a6, 8(sp)
+; RV32-NEXT:    sw a7, 12(sp)
+; RV32-NEXT:    li a0, 16
+; RV32-NEXT:    addi a2, sp, 16
+; RV32-NEXT:    mv a3, sp
+; RV32-NEXT:    li a4, 5
+; RV32-NEXT:    li a5, 5
+; RV32-NEXT:    mv a1, s0
+; RV32-NEXT:    call __atomic_compare_exchange@plt
+; RV32-NEXT:    lw a1, 28(sp)
+; RV32-NEXT:    lw a2, 24(sp)
+; RV32-NEXT:    lw a3, 20(sp)
+; RV32-NEXT:    lw a4, 16(sp)
+; RV32-NEXT:    bnez a0, .LBB62_4
+; RV32-NEXT:  .LBB62_2: # %atomicrmw.start
+; RV32-NEXT:    # =>This Inner Loop Header: Depth=1
+; RV32-NEXT:    addi a0, a4, 1
+; RV32-NEXT:    sltu a6, a0, a4
+; RV32-NEXT:    add a5, a3, a6
+; RV32-NEXT:    bgeu a0, a4, .LBB62_1
+; RV32-NEXT:  # %bb.3: # %atomicrmw.start
+; RV32-NEXT:    # in Loop: Header=BB62_2 Depth=1
+; RV32-NEXT:    sltu a6, a5, a3
+; RV32-NEXT:    j .LBB62_1
+; RV32-NEXT:  .LBB62_4: # %atomicrmw.end
+; RV32-NEXT:    sw a4, 0(s1)
+; RV32-NEXT:    sw a3, 4(s1)
+; RV32-NEXT:    sw a2, 8(s1)
+; RV32-NEXT:    sw a1, 12(s1)
+; RV32-NEXT:    lw ra, 44(sp) # 4-byte Folded Reload
+; RV32-NEXT:    lw s0, 40(sp) # 4-byte Folded Reload
+; RV32-NEXT:    lw s1, 36(sp) # 4-byte Folded Reload
+; RV32-NEXT:    addi sp, sp, 48
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: rmw128:
+; RV64:       # %bb.0:
+; RV64-NEXT:    addi sp, sp, -16
+; RV64-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64-NEXT:    li a1, 1
+; RV64-NEXT:    li a3, 5
+; RV64-NEXT:    li a2, 0
+; RV64-NEXT:    call __atomic_fetch_add_16@plt
+; RV64-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64-NEXT:    addi sp, sp, 16
+; RV64-NEXT:    ret
+  %v = atomicrmw add ptr %p, i128 1 seq_cst, align 16
+  ret i128 %v
+}
+
+define i128 @cmpxchg128(ptr %p) nounwind {
+; RV32-LABEL: cmpxchg128:
+; RV32:       # %bb.0:
+; RV32-NEXT:    addi sp, sp, -48
+; RV32-NEXT:    sw ra, 44(sp) # 4-byte Folded Spill
+; RV32-NEXT:    sw s0, 40(sp) # 4-byte Folded Spill
+; RV32-NEXT:    mv s0, a0
+; RV32-NEXT:    sw zero, 36(sp)
+; RV32-NEXT:    sw zero, 32(sp)
+; RV32-NEXT:    sw zero, 28(sp)
+; RV32-NEXT:    sw zero, 24(sp)
+; RV32-NEXT:    sw zero, 20(sp)
+; RV32-NEXT:    sw zero, 16(sp)
+; RV32-NEXT:    sw zero, 12(sp)
+; RV32-NEXT:    li a0, 1
+; RV32-NEXT:    sw a0, 8(sp)
+; RV32-NEXT:    li a0, 16
+; RV32-NEXT:    addi a2, sp, 24
+; RV32-NEXT:    addi a3, sp, 8
+; RV32-NEXT:    li a4, 5
+; RV32-NEXT:    li a5, 5
+; RV32-NEXT:    call __atomic_compare_exchange@plt
+; RV32-NEXT:    lw a0, 36(sp)
+; RV32-NEXT:    lw a1, 32(sp)
+; RV32-NEXT:    lw a2, 28(sp)
+; RV32-NEXT:    lw a3, 24(sp)
+; RV32-NEXT:    sw a0, 12(s0)
+; RV32-NEXT:    sw a1, 8(s0)
+; RV32-NEXT:    sw a2, 4(s0)
+; RV32-NEXT:    sw a3, 0(s0)
+; RV32-NEXT:    lw ra, 44(sp) # 4-byte Folded Reload
+; RV32-NEXT:    lw s0, 40(sp) # 4-byte Folded Reload
+; RV32-NEXT:    addi sp, sp, 48
+; RV32-NEXT:    ret
+;
+; RV64-LABEL: cmpxchg128:
+; RV64:       # %bb.0:
+; RV64-NEXT:    addi sp, sp, -32
+; RV64-NEXT:    sd ra, 24(sp) # 8-byte Folded Spill
+; RV64-NEXT:    sd zero, 8(sp)
+; RV64-NEXT:    sd zero, 0(sp)
+; RV64-NEXT:    mv a1, sp
+; RV64-NEXT:    li a2, 1
+; RV64-NEXT:    li a4, 5
+; RV64-NEXT:    li a5, 5
+; RV64-NEXT:    li a3, 0
+; RV64-NEXT:    call __atomic_compare_exchange_16@plt
+; RV64-NEXT:    ld a1, 8(sp)
+; RV64-NEXT:    ld a0, 0(sp)
+; RV64-NEXT:    ld ra, 24(sp) # 8-byte Folded Reload
+; RV64-NEXT:    addi sp, sp, 32
+; RV64-NEXT:    ret
+  %res = cmpxchg ptr %p, i128 0, i128 1 seq_cst seq_cst
+  %res.0 = extractvalue { i128, i1 } %res, 0
+  ret i128 %res.0
+}