Index: llvm/lib/Target/RISCV/RISCVISelLowering.cpp
===================================================================
--- llvm/lib/Target/RISCV/RISCVISelLowering.cpp
+++ llvm/lib/Target/RISCV/RISCVISelLowering.cpp
@@ -427,6 +427,9 @@
     setLoadExtAction(ISD::EXTLOAD, MVT::f32, MVT::f16, Expand);
     setTruncStoreAction(MVT::f32, MVT::f16, Expand);
     setOperationAction(ISD::IS_FPCLASS, MVT::f32, Custom);
+    setOperationAction(ISD::BF16_TO_FP, MVT::f32, Custom);
+    setOperationAction(ISD::FP_TO_BF16, MVT::f32,
+                       Subtarget.isSoftFPABI() ? LibCall : Custom);
 
     if (Subtarget.hasStdExtZfa())
       setOperationAction(ISD::FNEARBYINT, MVT::f32, Legal);
@@ -461,6 +464,9 @@
     setLoadExtAction(ISD::EXTLOAD, MVT::f64, MVT::f16, Expand);
     setTruncStoreAction(MVT::f64, MVT::f16, Expand);
     setOperationAction(ISD::IS_FPCLASS, MVT::f64, Custom);
+    setOperationAction(ISD::BF16_TO_FP, MVT::f64, Custom);
+    setOperationAction(ISD::FP_TO_BF16, MVT::f64,
+                       Subtarget.isSoftFPABI() ? LibCall : Custom);
   }
 
   if (Subtarget.is64Bit()) {
@@ -4796,6 +4802,35 @@
   case ISD::FP_TO_SINT_SAT:
   case ISD::FP_TO_UINT_SAT:
     return lowerFP_TO_INT_SAT(Op, DAG, Subtarget);
+  case ISD::FP_TO_BF16: {
+    // Custom lower to ensure the libcall return is passed in an FPR on hard
+    // float ABIs.
+    assert(!Subtarget.isSoftFPABI() && "Unexpected custom legalization");
+    SDLoc DL(Op);
+    MakeLibCallOptions CallOptions;
+    RTLIB::Libcall LC =
+        RTLIB::getFPROUND(Op.getOperand(0).getValueType(), MVT::bf16);
+    SDValue Res =
+        makeLibCall(DAG, LC, MVT::f32, Op.getOperand(0), CallOptions, DL).first;
+    if (Subtarget.is64Bit())
+      return DAG.getNode(RISCVISD::FMV_X_ANYEXTW_RV64, DL, MVT::i64, Res);
+    return DAG.getBitcast(MVT::i32, Res);
+  }
+  case ISD::BF16_TO_FP: {
+    assert(Subtarget.hasStdExtFOrZfinx() && "Unexpected custom legalization");
+    MVT VT = Op.getSimpleValueType();
+    SDLoc DL(Op);
+    Op = DAG.getNode(ISD::SHL, DL, Op.getOperand(0).getValueType(),
+                     Op.getOperand(0),
+                     DAG.getShiftAmountConstant(16, Subtarget.getXLenVT(), DL));
+    SDValue Res = Subtarget.is64Bit()
+                      ? DAG.getNode(RISCVISD::FMV_W_X_RV64, DL, MVT::f32, Op)
+                      : DAG.getBitcast(MVT::f32, Op);
+    // fp_extend if the target VT is bigger than f32.
+    if (VT != MVT::f32)
+      return DAG.getNode(ISD::FP_EXTEND, DL, VT, Res);
+    return Res;
+  }
   case ISD::FTRUNC:
   case ISD::FCEIL:
   case ISD::FFLOOR:
@@ -16094,9 +16129,10 @@
     unsigned NumParts, MVT PartVT, std::optional<CallingConv::ID> CC) const {
   bool IsABIRegCopy = CC.has_value();
   EVT ValueVT = Val.getValueType();
-  if (IsABIRegCopy && ValueVT == MVT::f16 && PartVT == MVT::f32) {
-    // Cast the f16 to i16, extend to i32, pad with ones to make a float nan,
-    // and cast to f32.
+  if (IsABIRegCopy && (ValueVT == MVT::f16 || ValueVT == MVT::bf16) &&
+      PartVT == MVT::f32) {
+    // Cast the [b]f16 to i16, extend to i32, pad with ones to make a float
+    // nan, and cast to f32.
     Val = DAG.getNode(ISD::BITCAST, DL, MVT::i16, Val);
     Val = DAG.getNode(ISD::ANY_EXTEND, DL, MVT::i32, Val);
     Val = DAG.getNode(ISD::OR, DL, MVT::i32, Val,
@@ -16147,13 +16183,14 @@
     SelectionDAG &DAG, const SDLoc &DL, const SDValue *Parts, unsigned NumParts,
     MVT PartVT, EVT ValueVT, std::optional<CallingConv::ID> CC) const {
   bool IsABIRegCopy = CC.has_value();
-  if (IsABIRegCopy && ValueVT == MVT::f16 && PartVT == MVT::f32) {
+  if (IsABIRegCopy && (ValueVT == MVT::f16 || ValueVT == MVT::bf16) &&
+      PartVT == MVT::f32) {
     SDValue Val = Parts[0];
 
-    // Cast the f32 to i32, truncate to i16, and cast back to f16.
+    // Cast the f32 to i32, truncate to i16, and cast back to [b]f16.
     Val = DAG.getNode(ISD::BITCAST, DL, MVT::i32, Val);
     Val = DAG.getNode(ISD::TRUNCATE, DL, MVT::i16, Val);
-    Val = DAG.getNode(ISD::BITCAST, DL, MVT::f16, Val);
+    Val = DAG.getNode(ISD::BITCAST, DL, ValueVT, Val);
     return Val;
   }
 
Index: llvm/test/CodeGen/RISCV/bfloat.ll
===================================================================
--- llvm/test/CodeGen/RISCV/bfloat.ll
+++ llvm/test/CodeGen/RISCV/bfloat.ll
@@ -1,8 +1,10 @@
 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
 ; RUN: llc -mtriple=riscv32 -verify-machineinstrs < %s | FileCheck %s -check-prefix=RV32I-ILP32
 ; RUN: llc -mtriple=riscv64 -verify-machineinstrs < %s | FileCheck %s -check-prefix=RV64I-LP64
-
-; TODO: Enable codegen for hard float.
+; RUN: llc -mtriple=riscv32 -mattr=+d -target-abi=ilp32 -verify-machineinstrs < %s | FileCheck %s -check-prefix=RV32ID-ILP32
+; RUN: llc -mtriple=riscv64 -mattr=+d -target-abi=lp64 -verify-machineinstrs < %s  | FileCheck %s -check-prefix=RV64ID-LP64
+; RUN: llc -mtriple=riscv32 -mattr=+d -target-abi=ilp32d -verify-machineinstrs < %s | FileCheck %s -check-prefix=RV32ID-ILP32D
+; RUN: llc -mtriple=riscv64 -mattr=+d -target-abi=lp64d -verify-machineinstrs < %s  | FileCheck %s -check-prefix=RV64ID-LP64D
 
 define bfloat @float_to_bfloat(float %a) nounwind {
 ; RV32I-ILP32-LABEL: float_to_bfloat:
@@ -22,6 +24,54 @@
 ; RV64I-LP64-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
 ; RV64I-LP64-NEXT:    addi sp, sp, 16
 ; RV64I-LP64-NEXT:    ret
+;
+; RV32ID-ILP32-LABEL: float_to_bfloat:
+; RV32ID-ILP32:       # %bb.0:
+; RV32ID-ILP32-NEXT:    addi sp, sp, -16
+; RV32ID-ILP32-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32ID-ILP32-NEXT:    call __truncsfbf2@plt
+; RV32ID-ILP32-NEXT:    lui a1, 1048560
+; RV32ID-ILP32-NEXT:    or a0, a0, a1
+; RV32ID-ILP32-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32ID-ILP32-NEXT:    addi sp, sp, 16
+; RV32ID-ILP32-NEXT:    ret
+;
+; RV64ID-LP64-LABEL: float_to_bfloat:
+; RV64ID-LP64:       # %bb.0:
+; RV64ID-LP64-NEXT:    addi sp, sp, -16
+; RV64ID-LP64-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64ID-LP64-NEXT:    call __truncsfbf2@plt
+; RV64ID-LP64-NEXT:    lui a1, 1048560
+; RV64ID-LP64-NEXT:    or a0, a0, a1
+; RV64ID-LP64-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64ID-LP64-NEXT:    addi sp, sp, 16
+; RV64ID-LP64-NEXT:    ret
+;
+; RV32ID-ILP32D-LABEL: float_to_bfloat:
+; RV32ID-ILP32D:       # %bb.0:
+; RV32ID-ILP32D-NEXT:    addi sp, sp, -16
+; RV32ID-ILP32D-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32ID-ILP32D-NEXT:    call __truncsfbf2@plt
+; RV32ID-ILP32D-NEXT:    fmv.x.w a0, fa0
+; RV32ID-ILP32D-NEXT:    lui a1, 1048560
+; RV32ID-ILP32D-NEXT:    or a0, a0, a1
+; RV32ID-ILP32D-NEXT:    fmv.w.x fa0, a0
+; RV32ID-ILP32D-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32ID-ILP32D-NEXT:    addi sp, sp, 16
+; RV32ID-ILP32D-NEXT:    ret
+;
+; RV64ID-LP64D-LABEL: float_to_bfloat:
+; RV64ID-LP64D:       # %bb.0:
+; RV64ID-LP64D-NEXT:    addi sp, sp, -16
+; RV64ID-LP64D-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64ID-LP64D-NEXT:    call __truncsfbf2@plt
+; RV64ID-LP64D-NEXT:    fmv.x.w a0, fa0
+; RV64ID-LP64D-NEXT:    lui a1, 1048560
+; RV64ID-LP64D-NEXT:    or a0, a0, a1
+; RV64ID-LP64D-NEXT:    fmv.w.x fa0, a0
+; RV64ID-LP64D-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64ID-LP64D-NEXT:    addi sp, sp, 16
+; RV64ID-LP64D-NEXT:    ret
   %1 = fptrunc float %a to bfloat
   ret bfloat %1
 }
@@ -44,6 +94,54 @@
 ; RV64I-LP64-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
 ; RV64I-LP64-NEXT:    addi sp, sp, 16
 ; RV64I-LP64-NEXT:    ret
+;
+; RV32ID-ILP32-LABEL: double_to_bfloat:
+; RV32ID-ILP32:       # %bb.0:
+; RV32ID-ILP32-NEXT:    addi sp, sp, -16
+; RV32ID-ILP32-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32ID-ILP32-NEXT:    call __truncdfbf2@plt
+; RV32ID-ILP32-NEXT:    lui a1, 1048560
+; RV32ID-ILP32-NEXT:    or a0, a0, a1
+; RV32ID-ILP32-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32ID-ILP32-NEXT:    addi sp, sp, 16
+; RV32ID-ILP32-NEXT:    ret
+;
+; RV64ID-LP64-LABEL: double_to_bfloat:
+; RV64ID-LP64:       # %bb.0:
+; RV64ID-LP64-NEXT:    addi sp, sp, -16
+; RV64ID-LP64-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64ID-LP64-NEXT:    call __truncdfbf2@plt
+; RV64ID-LP64-NEXT:    lui a1, 1048560
+; RV64ID-LP64-NEXT:    or a0, a0, a1
+; RV64ID-LP64-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64ID-LP64-NEXT:    addi sp, sp, 16
+; RV64ID-LP64-NEXT:    ret
+;
+; RV32ID-ILP32D-LABEL: double_to_bfloat:
+; RV32ID-ILP32D:       # %bb.0:
+; RV32ID-ILP32D-NEXT:    addi sp, sp, -16
+; RV32ID-ILP32D-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32ID-ILP32D-NEXT:    call __truncdfbf2@plt
+; RV32ID-ILP32D-NEXT:    fmv.x.w a0, fa0
+; RV32ID-ILP32D-NEXT:    lui a1, 1048560
+; RV32ID-ILP32D-NEXT:    or a0, a0, a1
+; RV32ID-ILP32D-NEXT:    fmv.w.x fa0, a0
+; RV32ID-ILP32D-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32ID-ILP32D-NEXT:    addi sp, sp, 16
+; RV32ID-ILP32D-NEXT:    ret
+;
+; RV64ID-LP64D-LABEL: double_to_bfloat:
+; RV64ID-LP64D:       # %bb.0:
+; RV64ID-LP64D-NEXT:    addi sp, sp, -16
+; RV64ID-LP64D-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64ID-LP64D-NEXT:    call __truncdfbf2@plt
+; RV64ID-LP64D-NEXT:    fmv.x.w a0, fa0
+; RV64ID-LP64D-NEXT:    lui a1, 1048560
+; RV64ID-LP64D-NEXT:    or a0, a0, a1
+; RV64ID-LP64D-NEXT:    fmv.w.x fa0, a0
+; RV64ID-LP64D-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64ID-LP64D-NEXT:    addi sp, sp, 16
+; RV64ID-LP64D-NEXT:    ret
   %1 = fptrunc double %a to bfloat
   ret bfloat %1
 }
@@ -58,6 +156,34 @@
 ; RV64I-LP64:       # %bb.0:
 ; RV64I-LP64-NEXT:    slliw a0, a0, 16
 ; RV64I-LP64-NEXT:    ret
+;
+; RV32ID-ILP32-LABEL: bfloat_to_float:
+; RV32ID-ILP32:       # %bb.0:
+; RV32ID-ILP32-NEXT:    slli a0, a0, 16
+; RV32ID-ILP32-NEXT:    ret
+;
+; RV64ID-LP64-LABEL: bfloat_to_float:
+; RV64ID-LP64:       # %bb.0:
+; RV64ID-LP64-NEXT:    slli a0, a0, 48
+; RV64ID-LP64-NEXT:    srli a0, a0, 48
+; RV64ID-LP64-NEXT:    slli a0, a0, 16
+; RV64ID-LP64-NEXT:    ret
+;
+; RV32ID-ILP32D-LABEL: bfloat_to_float:
+; RV32ID-ILP32D:       # %bb.0:
+; RV32ID-ILP32D-NEXT:    fmv.x.w a0, fa0
+; RV32ID-ILP32D-NEXT:    slli a0, a0, 16
+; RV32ID-ILP32D-NEXT:    fmv.w.x fa0, a0
+; RV32ID-ILP32D-NEXT:    ret
+;
+; RV64ID-LP64D-LABEL: bfloat_to_float:
+; RV64ID-LP64D:       # %bb.0:
+; RV64ID-LP64D-NEXT:    fmv.x.w a0, fa0
+; RV64ID-LP64D-NEXT:    slli a0, a0, 48
+; RV64ID-LP64D-NEXT:    srli a0, a0, 48
+; RV64ID-LP64D-NEXT:    slli a0, a0, 16
+; RV64ID-LP64D-NEXT:    fmv.w.x fa0, a0
+; RV64ID-LP64D-NEXT:    ret
   %1 = fpext bfloat %a to float
   ret float %1
 }
@@ -82,6 +208,46 @@
 ; RV64I-LP64-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
 ; RV64I-LP64-NEXT:    addi sp, sp, 16
 ; RV64I-LP64-NEXT:    ret
+;
+; RV32ID-ILP32-LABEL: bfloat_to_double:
+; RV32ID-ILP32:       # %bb.0:
+; RV32ID-ILP32-NEXT:    addi sp, sp, -16
+; RV32ID-ILP32-NEXT:    slli a0, a0, 16
+; RV32ID-ILP32-NEXT:    fmv.w.x fa5, a0
+; RV32ID-ILP32-NEXT:    fcvt.d.s fa5, fa5
+; RV32ID-ILP32-NEXT:    fsd fa5, 8(sp)
+; RV32ID-ILP32-NEXT:    lw a0, 8(sp)
+; RV32ID-ILP32-NEXT:    lw a1, 12(sp)
+; RV32ID-ILP32-NEXT:    addi sp, sp, 16
+; RV32ID-ILP32-NEXT:    ret
+;
+; RV64ID-LP64-LABEL: bfloat_to_double:
+; RV64ID-LP64:       # %bb.0:
+; RV64ID-LP64-NEXT:    slli a0, a0, 48
+; RV64ID-LP64-NEXT:    srli a0, a0, 48
+; RV64ID-LP64-NEXT:    slli a0, a0, 16
+; RV64ID-LP64-NEXT:    fmv.w.x fa5, a0
+; RV64ID-LP64-NEXT:    fcvt.d.s fa5, fa5
+; RV64ID-LP64-NEXT:    fmv.x.d a0, fa5
+; RV64ID-LP64-NEXT:    ret
+;
+; RV32ID-ILP32D-LABEL: bfloat_to_double:
+; RV32ID-ILP32D:       # %bb.0:
+; RV32ID-ILP32D-NEXT:    fmv.x.w a0, fa0
+; RV32ID-ILP32D-NEXT:    slli a0, a0, 16
+; RV32ID-ILP32D-NEXT:    fmv.w.x fa5, a0
+; RV32ID-ILP32D-NEXT:    fcvt.d.s fa0, fa5
+; RV32ID-ILP32D-NEXT:    ret
+;
+; RV64ID-LP64D-LABEL: bfloat_to_double:
+; RV64ID-LP64D:       # %bb.0:
+; RV64ID-LP64D-NEXT:    fmv.x.w a0, fa0
+; RV64ID-LP64D-NEXT:    slli a0, a0, 48
+; RV64ID-LP64D-NEXT:    srli a0, a0, 48
+; RV64ID-LP64D-NEXT:    slli a0, a0, 16
+; RV64ID-LP64D-NEXT:    fmv.w.x fa5, a0
+; RV64ID-LP64D-NEXT:    fcvt.d.s fa0, fa5
+; RV64ID-LP64D-NEXT:    ret
   %1 = fpext bfloat %a to double
   ret double %1
 }
@@ -94,6 +260,32 @@
 ; RV64I-LP64-LABEL: i16_to_bfloat:
 ; RV64I-LP64:       # %bb.0:
 ; RV64I-LP64-NEXT:    ret
+;
+; RV32ID-ILP32-LABEL: i16_to_bfloat:
+; RV32ID-ILP32:       # %bb.0:
+; RV32ID-ILP32-NEXT:    lui a1, 1048560
+; RV32ID-ILP32-NEXT:    or a0, a0, a1
+; RV32ID-ILP32-NEXT:    ret
+;
+; RV64ID-LP64-LABEL: i16_to_bfloat:
+; RV64ID-LP64:       # %bb.0:
+; RV64ID-LP64-NEXT:    lui a1, 1048560
+; RV64ID-LP64-NEXT:    or a0, a0, a1
+; RV64ID-LP64-NEXT:    ret
+;
+; RV32ID-ILP32D-LABEL: i16_to_bfloat:
+; RV32ID-ILP32D:       # %bb.0:
+; RV32ID-ILP32D-NEXT:    lui a1, 1048560
+; RV32ID-ILP32D-NEXT:    or a0, a0, a1
+; RV32ID-ILP32D-NEXT:    fmv.w.x fa0, a0
+; RV32ID-ILP32D-NEXT:    ret
+;
+; RV64ID-LP64D-LABEL: i16_to_bfloat:
+; RV64ID-LP64D:       # %bb.0:
+; RV64ID-LP64D-NEXT:    lui a1, 1048560
+; RV64ID-LP64D-NEXT:    or a0, a0, a1
+; RV64ID-LP64D-NEXT:    fmv.w.x fa0, a0
+; RV64ID-LP64D-NEXT:    ret
   %1 = bitcast i16 %a to bfloat
   ret bfloat %1
 }
@@ -106,6 +298,24 @@
 ; RV64I-LP64-LABEL: bfloat_to_i16:
 ; RV64I-LP64:       # %bb.0:
 ; RV64I-LP64-NEXT:    ret
+;
+; RV32ID-ILP32-LABEL: bfloat_to_i16:
+; RV32ID-ILP32:       # %bb.0:
+; RV32ID-ILP32-NEXT:    ret
+;
+; RV64ID-LP64-LABEL: bfloat_to_i16:
+; RV64ID-LP64:       # %bb.0:
+; RV64ID-LP64-NEXT:    ret
+;
+; RV32ID-ILP32D-LABEL: bfloat_to_i16:
+; RV32ID-ILP32D:       # %bb.0:
+; RV32ID-ILP32D-NEXT:    fmv.x.w a0, fa0
+; RV32ID-ILP32D-NEXT:    ret
+;
+; RV64ID-LP64D-LABEL: bfloat_to_i16:
+; RV64ID-LP64D:       # %bb.0:
+; RV64ID-LP64D-NEXT:    fmv.x.w a0, fa0
+; RV64ID-LP64D-NEXT:    ret
   %1 = bitcast bfloat %a to i16
   ret i16 %1
 }
@@ -134,6 +344,88 @@
 ; RV64I-LP64-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
 ; RV64I-LP64-NEXT:    addi sp, sp, 16
 ; RV64I-LP64-NEXT:    ret
+;
+; RV32ID-ILP32-LABEL: bfloat_add:
+; RV32ID-ILP32:       # %bb.0:
+; RV32ID-ILP32-NEXT:    addi sp, sp, -16
+; RV32ID-ILP32-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32ID-ILP32-NEXT:    slli a1, a1, 16
+; RV32ID-ILP32-NEXT:    fmv.w.x fa5, a1
+; RV32ID-ILP32-NEXT:    slli a0, a0, 16
+; RV32ID-ILP32-NEXT:    fmv.w.x fa4, a0
+; RV32ID-ILP32-NEXT:    fadd.s fa5, fa4, fa5
+; RV32ID-ILP32-NEXT:    fmv.x.w a0, fa5
+; RV32ID-ILP32-NEXT:    call __truncsfbf2@plt
+; RV32ID-ILP32-NEXT:    lui a1, 1048560
+; RV32ID-ILP32-NEXT:    or a0, a0, a1
+; RV32ID-ILP32-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32ID-ILP32-NEXT:    addi sp, sp, 16
+; RV32ID-ILP32-NEXT:    ret
+;
+; RV64ID-LP64-LABEL: bfloat_add:
+; RV64ID-LP64:       # %bb.0:
+; RV64ID-LP64-NEXT:    addi sp, sp, -16
+; RV64ID-LP64-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64ID-LP64-NEXT:    lui a2, 16
+; RV64ID-LP64-NEXT:    addiw a2, a2, -1
+; RV64ID-LP64-NEXT:    and a0, a0, a2
+; RV64ID-LP64-NEXT:    and a1, a1, a2
+; RV64ID-LP64-NEXT:    slli a1, a1, 16
+; RV64ID-LP64-NEXT:    fmv.w.x fa5, a1
+; RV64ID-LP64-NEXT:    slli a0, a0, 16
+; RV64ID-LP64-NEXT:    fmv.w.x fa4, a0
+; RV64ID-LP64-NEXT:    fadd.s fa5, fa4, fa5
+; RV64ID-LP64-NEXT:    fmv.x.w a0, fa5
+; RV64ID-LP64-NEXT:    call __truncsfbf2@plt
+; RV64ID-LP64-NEXT:    lui a1, 1048560
+; RV64ID-LP64-NEXT:    or a0, a0, a1
+; RV64ID-LP64-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64ID-LP64-NEXT:    addi sp, sp, 16
+; RV64ID-LP64-NEXT:    ret
+;
+; RV32ID-ILP32D-LABEL: bfloat_add:
+; RV32ID-ILP32D:       # %bb.0:
+; RV32ID-ILP32D-NEXT:    addi sp, sp, -16
+; RV32ID-ILP32D-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32ID-ILP32D-NEXT:    fmv.x.w a0, fa0
+; RV32ID-ILP32D-NEXT:    fmv.x.w a1, fa1
+; RV32ID-ILP32D-NEXT:    slli a1, a1, 16
+; RV32ID-ILP32D-NEXT:    fmv.w.x fa5, a1
+; RV32ID-ILP32D-NEXT:    slli a0, a0, 16
+; RV32ID-ILP32D-NEXT:    fmv.w.x fa4, a0
+; RV32ID-ILP32D-NEXT:    fadd.s fa0, fa4, fa5
+; RV32ID-ILP32D-NEXT:    call __truncsfbf2@plt
+; RV32ID-ILP32D-NEXT:    fmv.x.w a0, fa0
+; RV32ID-ILP32D-NEXT:    lui a1, 1048560
+; RV32ID-ILP32D-NEXT:    or a0, a0, a1
+; RV32ID-ILP32D-NEXT:    fmv.w.x fa0, a0
+; RV32ID-ILP32D-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32ID-ILP32D-NEXT:    addi sp, sp, 16
+; RV32ID-ILP32D-NEXT:    ret
+;
+; RV64ID-LP64D-LABEL: bfloat_add:
+; RV64ID-LP64D:       # %bb.0:
+; RV64ID-LP64D-NEXT:    addi sp, sp, -16
+; RV64ID-LP64D-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64ID-LP64D-NEXT:    fmv.x.w a0, fa0
+; RV64ID-LP64D-NEXT:    lui a1, 16
+; RV64ID-LP64D-NEXT:    addiw a1, a1, -1
+; RV64ID-LP64D-NEXT:    and a0, a0, a1
+; RV64ID-LP64D-NEXT:    fmv.x.w a2, fa1
+; RV64ID-LP64D-NEXT:    and a1, a2, a1
+; RV64ID-LP64D-NEXT:    slli a1, a1, 16
+; RV64ID-LP64D-NEXT:    fmv.w.x fa5, a1
+; RV64ID-LP64D-NEXT:    slli a0, a0, 16
+; RV64ID-LP64D-NEXT:    fmv.w.x fa4, a0
+; RV64ID-LP64D-NEXT:    fadd.s fa0, fa4, fa5
+; RV64ID-LP64D-NEXT:    call __truncsfbf2@plt
+; RV64ID-LP64D-NEXT:    fmv.x.w a0, fa0
+; RV64ID-LP64D-NEXT:    lui a1, 1048560
+; RV64ID-LP64D-NEXT:    or a0, a0, a1
+; RV64ID-LP64D-NEXT:    fmv.w.x fa0, a0
+; RV64ID-LP64D-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64ID-LP64D-NEXT:    addi sp, sp, 16
+; RV64ID-LP64D-NEXT:    ret
   %1 = fadd bfloat %a, %b
   ret bfloat %1
 }
@@ -166,6 +458,84 @@
 ; RV64I-LP64-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
 ; RV64I-LP64-NEXT:    addi sp, sp, 16
 ; RV64I-LP64-NEXT:    ret
+;
+; RV32ID-ILP32-LABEL: bfloat_load:
+; RV32ID-ILP32:       # %bb.0:
+; RV32ID-ILP32-NEXT:    addi sp, sp, -16
+; RV32ID-ILP32-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32ID-ILP32-NEXT:    lhu a1, 6(a0)
+; RV32ID-ILP32-NEXT:    lhu a0, 0(a0)
+; RV32ID-ILP32-NEXT:    slli a1, a1, 16
+; RV32ID-ILP32-NEXT:    fmv.w.x fa5, a1
+; RV32ID-ILP32-NEXT:    slli a0, a0, 16
+; RV32ID-ILP32-NEXT:    fmv.w.x fa4, a0
+; RV32ID-ILP32-NEXT:    fadd.s fa5, fa4, fa5
+; RV32ID-ILP32-NEXT:    fmv.x.w a0, fa5
+; RV32ID-ILP32-NEXT:    call __truncsfbf2@plt
+; RV32ID-ILP32-NEXT:    lui a1, 1048560
+; RV32ID-ILP32-NEXT:    or a0, a0, a1
+; RV32ID-ILP32-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32ID-ILP32-NEXT:    addi sp, sp, 16
+; RV32ID-ILP32-NEXT:    ret
+;
+; RV64ID-LP64-LABEL: bfloat_load:
+; RV64ID-LP64:       # %bb.0:
+; RV64ID-LP64-NEXT:    addi sp, sp, -16
+; RV64ID-LP64-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64ID-LP64-NEXT:    lhu a1, 6(a0)
+; RV64ID-LP64-NEXT:    lhu a0, 0(a0)
+; RV64ID-LP64-NEXT:    slli a1, a1, 16
+; RV64ID-LP64-NEXT:    fmv.w.x fa5, a1
+; RV64ID-LP64-NEXT:    slli a0, a0, 16
+; RV64ID-LP64-NEXT:    fmv.w.x fa4, a0
+; RV64ID-LP64-NEXT:    fadd.s fa5, fa4, fa5
+; RV64ID-LP64-NEXT:    fmv.x.w a0, fa5
+; RV64ID-LP64-NEXT:    call __truncsfbf2@plt
+; RV64ID-LP64-NEXT:    lui a1, 1048560
+; RV64ID-LP64-NEXT:    or a0, a0, a1
+; RV64ID-LP64-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64ID-LP64-NEXT:    addi sp, sp, 16
+; RV64ID-LP64-NEXT:    ret
+;
+; RV32ID-ILP32D-LABEL: bfloat_load:
+; RV32ID-ILP32D:       # %bb.0:
+; RV32ID-ILP32D-NEXT:    addi sp, sp, -16
+; RV32ID-ILP32D-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32ID-ILP32D-NEXT:    lhu a1, 6(a0)
+; RV32ID-ILP32D-NEXT:    lhu a0, 0(a0)
+; RV32ID-ILP32D-NEXT:    slli a1, a1, 16
+; RV32ID-ILP32D-NEXT:    fmv.w.x fa5, a1
+; RV32ID-ILP32D-NEXT:    slli a0, a0, 16
+; RV32ID-ILP32D-NEXT:    fmv.w.x fa4, a0
+; RV32ID-ILP32D-NEXT:    fadd.s fa0, fa4, fa5
+; RV32ID-ILP32D-NEXT:    call __truncsfbf2@plt
+; RV32ID-ILP32D-NEXT:    fmv.x.w a0, fa0
+; RV32ID-ILP32D-NEXT:    lui a1, 1048560
+; RV32ID-ILP32D-NEXT:    or a0, a0, a1
+; RV32ID-ILP32D-NEXT:    fmv.w.x fa0, a0
+; RV32ID-ILP32D-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32ID-ILP32D-NEXT:    addi sp, sp, 16
+; RV32ID-ILP32D-NEXT:    ret
+;
+; RV64ID-LP64D-LABEL: bfloat_load:
+; RV64ID-LP64D:       # %bb.0:
+; RV64ID-LP64D-NEXT:    addi sp, sp, -16
+; RV64ID-LP64D-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64ID-LP64D-NEXT:    lhu a1, 6(a0)
+; RV64ID-LP64D-NEXT:    lhu a0, 0(a0)
+; RV64ID-LP64D-NEXT:    slli a1, a1, 16
+; RV64ID-LP64D-NEXT:    fmv.w.x fa5, a1
+; RV64ID-LP64D-NEXT:    slli a0, a0, 16
+; RV64ID-LP64D-NEXT:    fmv.w.x fa4, a0
+; RV64ID-LP64D-NEXT:    fadd.s fa0, fa4, fa5
+; RV64ID-LP64D-NEXT:    call __truncsfbf2@plt
+; RV64ID-LP64D-NEXT:    fmv.x.w a0, fa0
+; RV64ID-LP64D-NEXT:    lui a1, 1048560
+; RV64ID-LP64D-NEXT:    or a0, a0, a1
+; RV64ID-LP64D-NEXT:    fmv.w.x fa0, a0
+; RV64ID-LP64D-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64ID-LP64D-NEXT:    addi sp, sp, 16
+; RV64ID-LP64D-NEXT:    ret
   %1 = load bfloat, ptr %a
   %2 = getelementptr bfloat, ptr %a, i32 3
   %3 = load bfloat, ptr %2
@@ -207,6 +577,98 @@
 ; RV64I-LP64-NEXT:    ld s0, 0(sp) # 8-byte Folded Reload
 ; RV64I-LP64-NEXT:    addi sp, sp, 16
 ; RV64I-LP64-NEXT:    ret
+;
+; RV32ID-ILP32-LABEL: bfloat_store:
+; RV32ID-ILP32:       # %bb.0:
+; RV32ID-ILP32-NEXT:    addi sp, sp, -16
+; RV32ID-ILP32-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32ID-ILP32-NEXT:    sw s0, 8(sp) # 4-byte Folded Spill
+; RV32ID-ILP32-NEXT:    mv s0, a0
+; RV32ID-ILP32-NEXT:    slli a2, a2, 16
+; RV32ID-ILP32-NEXT:    fmv.w.x fa5, a2
+; RV32ID-ILP32-NEXT:    slli a1, a1, 16
+; RV32ID-ILP32-NEXT:    fmv.w.x fa4, a1
+; RV32ID-ILP32-NEXT:    fadd.s fa5, fa4, fa5
+; RV32ID-ILP32-NEXT:    fmv.x.w a0, fa5
+; RV32ID-ILP32-NEXT:    call __truncsfbf2@plt
+; RV32ID-ILP32-NEXT:    sh a0, 0(s0)
+; RV32ID-ILP32-NEXT:    sh a0, 16(s0)
+; RV32ID-ILP32-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32ID-ILP32-NEXT:    lw s0, 8(sp) # 4-byte Folded Reload
+; RV32ID-ILP32-NEXT:    addi sp, sp, 16
+; RV32ID-ILP32-NEXT:    ret
+;
+; RV64ID-LP64-LABEL: bfloat_store:
+; RV64ID-LP64:       # %bb.0:
+; RV64ID-LP64-NEXT:    addi sp, sp, -16
+; RV64ID-LP64-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64ID-LP64-NEXT:    sd s0, 0(sp) # 8-byte Folded Spill
+; RV64ID-LP64-NEXT:    mv s0, a0
+; RV64ID-LP64-NEXT:    lui a0, 16
+; RV64ID-LP64-NEXT:    addiw a0, a0, -1
+; RV64ID-LP64-NEXT:    and a1, a1, a0
+; RV64ID-LP64-NEXT:    and a0, a2, a0
+; RV64ID-LP64-NEXT:    slli a0, a0, 16
+; RV64ID-LP64-NEXT:    fmv.w.x fa5, a0
+; RV64ID-LP64-NEXT:    slli a1, a1, 16
+; RV64ID-LP64-NEXT:    fmv.w.x fa4, a1
+; RV64ID-LP64-NEXT:    fadd.s fa5, fa4, fa5
+; RV64ID-LP64-NEXT:    fmv.x.w a0, fa5
+; RV64ID-LP64-NEXT:    call __truncsfbf2@plt
+; RV64ID-LP64-NEXT:    sh a0, 0(s0)
+; RV64ID-LP64-NEXT:    sh a0, 16(s0)
+; RV64ID-LP64-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64ID-LP64-NEXT:    ld s0, 0(sp) # 8-byte Folded Reload
+; RV64ID-LP64-NEXT:    addi sp, sp, 16
+; RV64ID-LP64-NEXT:    ret
+;
+; RV32ID-ILP32D-LABEL: bfloat_store:
+; RV32ID-ILP32D:       # %bb.0:
+; RV32ID-ILP32D-NEXT:    addi sp, sp, -16
+; RV32ID-ILP32D-NEXT:    sw ra, 12(sp) # 4-byte Folded Spill
+; RV32ID-ILP32D-NEXT:    sw s0, 8(sp) # 4-byte Folded Spill
+; RV32ID-ILP32D-NEXT:    mv s0, a0
+; RV32ID-ILP32D-NEXT:    fmv.x.w a0, fa0
+; RV32ID-ILP32D-NEXT:    fmv.x.w a1, fa1
+; RV32ID-ILP32D-NEXT:    slli a1, a1, 16
+; RV32ID-ILP32D-NEXT:    fmv.w.x fa5, a1
+; RV32ID-ILP32D-NEXT:    slli a0, a0, 16
+; RV32ID-ILP32D-NEXT:    fmv.w.x fa4, a0
+; RV32ID-ILP32D-NEXT:    fadd.s fa0, fa4, fa5
+; RV32ID-ILP32D-NEXT:    call __truncsfbf2@plt
+; RV32ID-ILP32D-NEXT:    fmv.x.w a0, fa0
+; RV32ID-ILP32D-NEXT:    sh a0, 0(s0)
+; RV32ID-ILP32D-NEXT:    sh a0, 16(s0)
+; RV32ID-ILP32D-NEXT:    lw ra, 12(sp) # 4-byte Folded Reload
+; RV32ID-ILP32D-NEXT:    lw s0, 8(sp) # 4-byte Folded Reload
+; RV32ID-ILP32D-NEXT:    addi sp, sp, 16
+; RV32ID-ILP32D-NEXT:    ret
+;
+; RV64ID-LP64D-LABEL: bfloat_store:
+; RV64ID-LP64D:       # %bb.0:
+; RV64ID-LP64D-NEXT:    addi sp, sp, -16
+; RV64ID-LP64D-NEXT:    sd ra, 8(sp) # 8-byte Folded Spill
+; RV64ID-LP64D-NEXT:    sd s0, 0(sp) # 8-byte Folded Spill
+; RV64ID-LP64D-NEXT:    mv s0, a0
+; RV64ID-LP64D-NEXT:    fmv.x.w a0, fa0
+; RV64ID-LP64D-NEXT:    lui a1, 16
+; RV64ID-LP64D-NEXT:    addiw a1, a1, -1
+; RV64ID-LP64D-NEXT:    and a0, a0, a1
+; RV64ID-LP64D-NEXT:    fmv.x.w a2, fa1
+; RV64ID-LP64D-NEXT:    and a1, a2, a1
+; RV64ID-LP64D-NEXT:    slli a1, a1, 16
+; RV64ID-LP64D-NEXT:    fmv.w.x fa5, a1
+; RV64ID-LP64D-NEXT:    slli a0, a0, 16
+; RV64ID-LP64D-NEXT:    fmv.w.x fa4, a0
+; RV64ID-LP64D-NEXT:    fadd.s fa0, fa4, fa5
+; RV64ID-LP64D-NEXT:    call __truncsfbf2@plt
+; RV64ID-LP64D-NEXT:    fmv.x.w a0, fa0
+; RV64ID-LP64D-NEXT:    sh a0, 0(s0)
+; RV64ID-LP64D-NEXT:    sh a0, 16(s0)
+; RV64ID-LP64D-NEXT:    ld ra, 8(sp) # 8-byte Folded Reload
+; RV64ID-LP64D-NEXT:    ld s0, 0(sp) # 8-byte Folded Reload
+; RV64ID-LP64D-NEXT:    addi sp, sp, 16
+; RV64ID-LP64D-NEXT:    ret
   %1 = fadd bfloat %b, %c
   store bfloat %1, ptr %a
   %2 = getelementptr bfloat, ptr %a, i32 8