Index: llvm/lib/Target/RISCV/RISCVISelLowering.cpp
===================================================================
--- llvm/lib/Target/RISCV/RISCVISelLowering.cpp
+++ llvm/lib/Target/RISCV/RISCVISelLowering.cpp
@@ -148,12 +148,28 @@
   setOperationAction(ISD::SRL_PARTS, XLenVT, Custom);
   setOperationAction(ISD::SRA_PARTS, XLenVT, Custom);
 
-  setOperationAction(ISD::ROTL, XLenVT, Expand);
-  setOperationAction(ISD::ROTR, XLenVT, Expand);
-  setOperationAction(ISD::BSWAP, XLenVT, Expand);
-  setOperationAction(ISD::CTTZ, XLenVT, Expand);
-  setOperationAction(ISD::CTLZ, XLenVT, Expand);
-  setOperationAction(ISD::CTPOP, XLenVT, Expand);
+  if (!(Subtarget.hasStdExtZbb() || Subtarget.hasStdExtZbp())) {
+    setOperationAction(ISD::ROTL, XLenVT, Expand);
+    setOperationAction(ISD::ROTR, XLenVT, Expand);
+  }
+
+  if (!Subtarget.hasStdExtZbp())
+    setOperationAction(ISD::BSWAP, XLenVT, Expand);
+
+  if (!Subtarget.hasStdExtZbb()) {
+    setOperationAction(ISD::CTTZ, XLenVT, Expand);
+    setOperationAction(ISD::CTLZ, XLenVT, Expand);
+    setOperationAction(ISD::CTPOP, XLenVT, Expand);
+  }
+
+  if (Subtarget.hasStdExtZbp()) {
+    setOperationAction(ISD::BITREVERSE, XLenVT, Legal);
+  }
+
+  if (Subtarget.hasStdExtZbt()) {
+    setOperationAction(ISD::FSHL, XLenVT, Legal);
+    setOperationAction(ISD::FSHR, XLenVT, Legal);
+  }
 
   ISD::CondCode FPCCToExtend[] = {
       ISD::SETOGT, ISD::SETOGE, ISD::SETONE, ISD::SETUEQ, ISD::SETUGT,
Index: llvm/lib/Target/RISCV/RISCVInstrInfoB.td
===================================================================
--- llvm/lib/Target/RISCV/RISCVInstrInfoB.td
+++ llvm/lib/Target/RISCV/RISCVInstrInfoB.td
@@ -621,6 +621,7 @@
 //===----------------------------------------------------------------------===//
 // Compressed Instruction patterns
 //===----------------------------------------------------------------------===//
+
 let Predicates = [HasStdExtZbproposedc, HasStdExtC] in {
 def : CompressPat<(XORI GPRC:$rs1, GPRC:$rs1, -1),
                   (C_NOT GPRC:$rs1)>;
@@ -632,3 +633,253 @@
 def : CompressPat<(PACK GPRC:$rs1, GPRC:$rs1, X0),
                   (C_ZEXTW GPRC:$rs1)>;
 } // Predicates = [HasStdExtZbproposedc, HasStdExtC, IsRV64]
+
+//===----------------------------------------------------------------------===//
+// Codegen patterns
+//===----------------------------------------------------------------------===//
+
+let Predicates = [HasStdExtZbbOrZbp] in {
+def : Pat<(and GPR:$rs1, (not GPR:$rs2)), (ANDN GPR:$rs1, GPR:$rs2)>;
+def : Pat<(or  GPR:$rs1, (not GPR:$rs2)), (ORN  GPR:$rs1, GPR:$rs2)>;
+def : Pat<(xor GPR:$rs1, (not GPR:$rs2)), (XNOR GPR:$rs1, GPR:$rs2)>;
+} // Predicates = [HasStdExtZbbOrZbp]
+
+let Predicates = [HasStdExtZbb] in {
+def : Pat<(xor (shl (xor GPR:$rs1, -1), GPR:$rs2), -1),
+          (SLO GPR:$rs1, GPR:$rs2)>;
+def : Pat<(xor (srl (xor GPR:$rs1, -1), GPR:$rs2), -1),
+          (SRO GPR:$rs1, GPR:$rs2)>;
+} // Predicates = [HasStdExtZbb]
+
+let Predicates = [HasStdExtZbbOrZbp] in {
+def : Pat<(rotl GPR:$rs1, GPR:$rs2), (ROL GPR:$rs1, GPR:$rs2)>;
+def : Pat<(fshl GPR:$rs1, GPR:$rs1, GPR:$rs2), (ROL GPR:$rs1, GPR:$rs2)>;
+def : Pat<(rotr GPR:$rs1, GPR:$rs2), (ROR GPR:$rs1, GPR:$rs2)>;
+def : Pat<(fshr GPR:$rs1, GPR:$rs1, GPR:$rs2), (ROR GPR:$rs1, GPR:$rs2)>;
+} // Predicates = [HasStdExtZbbOrZbp]
+
+let Predicates = [HasStdExtZbs, IsRV32] in {
+def : Pat<(and (xor (shl 1, GPR:$rs2), -1), GPR:$rs1),
+          (SBCLR GPR:$rs1, GPR:$rs2)>;
+def : Pat<(and (rotl -2, GPR:$rs2), GPR:$rs1), (SBCLR GPR:$rs1, GPR:$rs2)>;
+} // Predicates = [HasStdExtZbs, IsRV32]
+let Predicates = [HasStdExtZbs, IsRV64] in
+def : Pat<(and (xor (riscv_sllw 1, GPR:$rs2), -1), GPR:$rs1),
+          (SBCLR GPR:$rs1, GPR:$rs2)>;
+
+let Predicates = [HasStdExtZbs, IsRV32] in
+def : Pat<(or (shl 1, GPR:$rs2), GPR:$rs1), (SBSET GPR:$rs1, GPR:$rs2)>;
+let Predicates = [HasStdExtZbs, IsRV64] in
+def : Pat<(or (riscv_sllw 1, GPR:$rs2), GPR:$rs1), (SBSET GPR:$rs1, GPR:$rs2)>;
+
+let Predicates = [HasStdExtZbs, IsRV32] in
+def : Pat<(xor (shl 1, GPR:$rs2), GPR:$rs1), (SBINV GPR:$rs1, GPR:$rs2)>;
+let Predicates = [HasStdExtZbs, IsRV64] in
+def : Pat<(xor (riscv_sllw 1, GPR:$rs2), GPR:$rs1), (SBINV GPR:$rs1, GPR:$rs2)>;
+
+let Predicates = [HasStdExtZbs] in
+def : Pat<(and (srl GPR:$rs1, GPR:$rs2), 1), (SBEXT GPR:$rs1, GPR:$rs2)>;
+
+let Predicates = [HasStdExtZbp, IsRV32] in {
+def : Pat<(or (or (and (srl GPR:$rs1, (i32 1)), (i32 0x55555555)), GPR:$rs1),
+              (and (shl GPR:$rs1, (i32 1)), (i32 0xAAAAAAAA))),
+          (GORCI GPR:$rs1, (i32 1))>;
+def : Pat<(or (or (and (srl GPR:$rs1, (i32 2)), (i32 0x33333333)), GPR:$rs1),
+              (and (shl GPR:$rs1, (i32 2)), (i32 0xCCCCCCCC))),
+          (GORCI GPR:$rs1, (i32 2))>;
+def : Pat<(or (or (and (srl GPR:$rs1, (i32 4)), (i32 0x0F0F0F0F)), GPR:$rs1),
+              (and (shl GPR:$rs1, (i32 4)), (i32 0xF0F0F0F0))),
+          (GORCI GPR:$rs1, (i32 4))>;
+def : Pat<(or (or (and (srl GPR:$rs1, (i32 8)), (i32 0x00FF00FF)), GPR:$rs1),
+              (and (shl GPR:$rs1, (i32 8)), (i32 0xFF00FF00))),
+          (GORCI GPR:$rs1, (i32 8))>;
+def : Pat<(or (or (srl GPR:$rs1, (i32 16)), GPR:$rs1),
+              (shl GPR:$rs1, (i32 16))),
+          (GORCI GPR:$rs1, (i32 16))>;
+} // Predicates = [HasStdExtZbp, IsRV32]
+
+let Predicates = [HasStdExtZbp, IsRV64] in {
+def : Pat<(or (or (and (srl GPR:$rs1, (i64 1)), (i64 0x5555555555555555)),
+                   GPR:$rs1),
+              (and (shl GPR:$rs1, (i64 1)), (i64 0xAAAAAAAAAAAAAAAA))),
+          (GORCI GPR:$rs1, (i64 1))>;
+def : Pat<(or (or (and (srl GPR:$rs1, (i64 2)), (i64 0x3333333333333333)),
+                   GPR:$rs1),
+              (and (shl GPR:$rs1, (i64 2)), (i64 0xCCCCCCCCCCCCCCCC))),
+          (GORCI GPR:$rs1, (i64 2))>;
+def : Pat<(or (or (and (srl GPR:$rs1, (i64 4)), (i64 0x0F0F0F0F0F0F0F0F)),
+                   GPR:$rs1),
+              (and (shl GPR:$rs1, (i64 4)), (i64 0xF0F0F0F0F0F0F0F0))),
+          (GORCI GPR:$rs1, (i64 4))>;
+def : Pat<(or (or (and (srl GPR:$rs1, (i64 8)), (i64 0x00FF00FF00FF00FF)),
+                   GPR:$rs1),
+              (and (shl GPR:$rs1, (i64 8)), (i64 0xFF00FF00FF00FF00))),
+          (GORCI GPR:$rs1, (i64 8))>;
+def : Pat<(or (or (and (srl GPR:$rs1, (i64 16)), (i64 0x0000FFFF0000FFFF)),
+                   GPR:$rs1),
+              (and (shl GPR:$rs1, (i64 16)), (i64 0xFFFF0000FFFF0000))),
+          (GORCI GPR:$rs1, (i64 16))>;
+def : Pat<(or (or (srl GPR:$rs1, (i64 32)), GPR:$rs1),
+              (shl GPR:$rs1, (i64 32))),
+          (GORCI GPR:$rs1, (i64 32))>;
+} // Predicates = [HasStdExtZbp, IsRV64]
+
+let Predicates = [HasStdExtZbp, IsRV32] in {
+def : Pat<(or (and (shl GPR:$rs1, (i32 1)), (i32 0xAAAAAAAA)),
+              (and (srl GPR:$rs1, (i32 1)), (i32 0x55555555))),
+          (GREVI GPR:$rs1, (i32 1))>;
+def : Pat<(or (and (shl GPR:$rs1, (i32 2)), (i32 0xCCCCCCCC)),
+              (and (srl GPR:$rs1, (i32 2)), (i32 0x33333333))),
+          (GREVI GPR:$rs1, (i32 2))>;
+def : Pat<(or (and (shl GPR:$rs1, (i32 4)), (i32 0xF0F0F0F0)),
+              (and (srl GPR:$rs1, (i32 4)), (i32 0x0F0F0F0F))),
+          (GREVI GPR:$rs1, (i32 4))>;
+def : Pat<(or (and (shl GPR:$rs1, (i32 8)), (i32 0xFF00FF00)),
+              (and (srl GPR:$rs1, (i32 8)), (i32 0x00FF00FF))),
+          (GREVI GPR:$rs1, (i32 8))>;
+def : Pat<(rotr (bswap GPR:$rs1), (i32 16)), (GREVI GPR:$rs1, (i32 8))>;
+def : Pat<(or (shl GPR:$rs1, (i32 16)), (srl GPR:$rs1, (i32 16))),
+          (GREVI GPR:$rs1, (i32 16))>;
+def : Pat<(rotl GPR:$rs1, (i32 16)), (GREVI GPR:$rs1, (i32 16))>;
+def : Pat<(bswap GPR:$rs1), (GREVI GPR:$rs1, (i32 24))>;
+def : Pat<(bitreverse GPR:$rs1), (GREVI GPR:$rs1, (i32 31))>;
+} // Predicates = [HasStdExtZbp, IsRV32]
+
+let Predicates = [HasStdExtZbp, IsRV64] in {
+def : Pat<(or (and (shl GPR:$rs1, (i64 1)), (i64 0xAAAAAAAAAAAAAAAA)),
+              (and (srl GPR:$rs1, (i64 1)), (i64 0x5555555555555555))),
+          (GREVI GPR:$rs1, (i64 1))>;
+def : Pat<(or (and (shl GPR:$rs1, (i64 2)), (i64 0xCCCCCCCCCCCCCCCC)),
+              (and (srl GPR:$rs1, (i64 2)), (i64 0x3333333333333333))),
+          (GREVI GPR:$rs1, (i64 2))>;
+def : Pat<(or (and (shl GPR:$rs1, (i64 4)), (i64 0xF0F0F0F0F0F0F0F0)),
+              (and (srl GPR:$rs1, (i64 4)), (i64 0x0F0F0F0F0F0F0F0F))),
+          (GREVI GPR:$rs1, (i64 4))>;
+def : Pat<(or (and (shl GPR:$rs1, (i64 8)), (i64 0xFF00FF00FF00FF00)),
+              (and (srl GPR:$rs1, (i64 8)), (i64 0x00FF00FF00FF00FF))),
+          (GREVI GPR:$rs1, (i64 8))>;
+def : Pat<(or (and (shl GPR:$rs1, (i64 16)), (i64 0xFFFF0000FFFF0000)),
+              (and (srl GPR:$rs1, (i64 16)), (i64 0x0000FFFF0000FFFF))),
+          (GREVI GPR:$rs1, (i64 16))>;
+def : Pat<(or (shl GPR:$rs1, (i64 16)), (srl GPR:$rs1, (i64 16))),
+          (GREVI GPR:$rs1, (i64 16))>;
+def : Pat<(or (shl GPR:$rs1, (i64 32)), (srl GPR:$rs1, (i64 32))),
+          (GREVI GPR:$rs1, (i64 32))>;
+def : Pat<(rotl GPR:$rs1, (i64 32)), (GREVI GPR:$rs1, (i64 32))>;
+def : Pat<(bswap GPR:$rs1), (GREVI GPR:$rs1, (i64 56))>;
+def : Pat<(bitreverse GPR:$rs1), (GREVI GPR:$rs1, (i64 63))>;
+} // Predicates = [HasStdExtZbp, IsRV64]
+
+let Predicates = [HasStdExtZbt] in {
+def : Pat<(or (and (xor GPR:$rs2, -1), GPR:$rs3), (and GPR:$rs2, GPR:$rs1)),
+          (CMIX GPR:$rs1, GPR:$rs2, GPR:$rs3)>;
+def : Pat<(riscv_selectcc GPR:$rs2, (XLenVT 0), (XLenVT 17), GPR:$rs3, GPR:$rs1),
+          (CMOV GPR:$rs1, GPR:$rs2, GPR:$rs3)>;
+def : Pat<(fshl GPR:$rs1, GPR:$rs2, GPR:$rs3),
+          (FSL GPR:$rs1, GPR:$rs2, GPR:$rs3)>;
+def : Pat<(fshr GPR:$rs1, GPR:$rs2, GPR:$rs3),
+          (FSR GPR:$rs1, GPR:$rs2, GPR:$rs3)>;
+} // Predicates = [HasStdExtZbt]
+
+let Predicates = [HasStdExtZbb] in {
+def : Pat<(ctlz GPR:$rs1), (CLZ GPR:$rs1)>;
+def : Pat<(cttz GPR:$rs1), (CTZ GPR:$rs1)>;
+def : Pat<(ctpop GPR:$rs1), (PCNT GPR:$rs1)>;
+} // Predicates = [HasStdExtZbb]
+
+let Predicates = [HasStdExtZbb, IsRV32] in
+def : Pat<(sra (shl GPR:$rs1, (i32 24)), (i32 24)), (SEXTB GPR:$rs1)>;
+let Predicates = [HasStdExtZbb, IsRV64] in
+def : Pat<(sra (shl GPR:$rs1, (i64 56)), (i64 56)), (SEXTB GPR:$rs1)>;
+
+let Predicates = [HasStdExtZbb, IsRV32] in
+def : Pat<(sra (shl GPR:$rs1, (i32 16)), (i32 16)), (SEXTH GPR:$rs1)>;
+let Predicates = [HasStdExtZbb, IsRV64] in
+def : Pat<(sra (shl GPR:$rs1, (i64 48)), (i64 48)), (SEXTH GPR:$rs1)>;
+
+let Predicates = [HasStdExtZbb] in {
+def : Pat<(smin GPR:$rs1, GPR:$rs2), (MIN  GPR:$rs1, GPR:$rs2)>;
+def : Pat<(riscv_selectcc GPR:$rs1, GPR:$rs2, (XLenVT 20), GPR:$rs1, GPR:$rs2),
+          (MIN  GPR:$rs1, GPR:$rs2)>;
+def : Pat<(smax GPR:$rs1, GPR:$rs2), (MAX  GPR:$rs1, GPR:$rs2)>;
+def : Pat<(riscv_selectcc GPR:$rs2, GPR:$rs1, (XLenVT 20), GPR:$rs1, GPR:$rs2),
+          (MAX  GPR:$rs1, GPR:$rs2)>;
+def : Pat<(umin GPR:$rs1, GPR:$rs2), (MINU GPR:$rs1, GPR:$rs2)>;
+def : Pat<(riscv_selectcc GPR:$rs1, GPR:$rs2, (XLenVT 12), GPR:$rs1, GPR:$rs2),
+          (MINU  GPR:$rs1, GPR:$rs2)>;
+def : Pat<(umax GPR:$rs1, GPR:$rs2), (MAXU GPR:$rs1, GPR:$rs2)>;
+def : Pat<(riscv_selectcc GPR:$rs2, GPR:$rs1, (XLenVT 12), GPR:$rs1, GPR:$rs2),
+          (MAXU  GPR:$rs1, GPR:$rs2)>;
+} // Predicates = [HasStdExtZbb]
+
+let Predicates = [HasStdExtZbbOrZbp, IsRV32] in
+def : Pat<(or (and GPR:$rs1, 0x0000FFFF), (shl GPR:$rs2, (i32 16))),
+          (PACK GPR:$rs1, GPR:$rs2)>;
+let Predicates = [HasStdExtZbbOrZbp, IsRV64] in
+def : Pat<(or (and GPR:$rs1, 0x00000000FFFFFFFF), (shl GPR:$rs2, (i64 32))),
+          (PACK GPR:$rs1, GPR:$rs2)>;
+let Predicates = [HasStdExtZbbOrZbp, IsRV32] in
+def : Pat<(or (and GPR:$rs2, 0xFFFF0000), (srl GPR:$rs1, (i32 16))),
+          (PACKU GPR:$rs1, GPR:$rs2)>;
+let Predicates = [HasStdExtZbbOrZbp, IsRV64] in
+def : Pat<(or (and GPR:$rs2, 0xFFFFFFFF00000000), (srl GPR:$rs1, (i64 32))),
+          (PACKU GPR:$rs1, GPR:$rs2)>;
+let Predicates = [HasStdExtZbbOrZbp] in
+def : Pat<(or (and (shl GPR:$rs2, (XLenVT 8)), 0xFF00),
+              (and GPR:$rs1, 0x00FF)),
+          (PACKH GPR:$rs1, GPR:$rs2)>;
+
+let Predicates = [HasStdExtZbp, IsRV32] in {
+def : Pat<(or (or (and (shl GPR:$rs1, (i32 8)), (i32 0x00FF0000)),
+                  (and GPR:$rs1, (i32 0xFF0000FF))),
+              (and (srl GPR:$rs1, (i32 8)), (i32 0x0000FF00))),
+          (SHFLI GPR:$rs1, (i32 8))>;
+def : Pat<(or (or (and (shl GPR:$rs1, (i32 4)), (i32 0x0F000F00)),
+                  (and GPR:$rs1, (i32 0xF00FF00F))),
+              (and (srl GPR:$rs1, (i32 4)), (i32 0x00F000F0))),
+          (SHFLI GPR:$rs1, (i32 4))>;
+def : Pat<(or (or (and (shl GPR:$rs1, (i32 2)), (i32 0x30303030)),
+                  (and GPR:$rs1, (i32 0xC3C3C3C3))),
+              (and (srl GPR:$rs1, (i32 2)), (i32 0x0C0C0C0C))),
+          (SHFLI GPR:$rs1, (i32 2))>;
+def : Pat<(or (or (and (shl GPR:$rs1, (i32 1)), (i32 0x44444444)),
+                  (and GPR:$rs1, (i32 0x99999999))),
+              (and (srl GPR:$rs1, (i32 1)), (i32 0x22222222))),
+          (SHFLI GPR:$rs1, (i32 1))>;
+} // Predicates = [HasStdExtZbp, IsRV32]
+
+let Predicates = [HasStdExtZbp, IsRV64] in {
+def : Pat<(or (or (and (shl GPR:$rs1, (i64 16)), (i64 0x0000FFFF00000000)),
+                  (and GPR:$rs1, (i64 0xFFFF00000000FFFF))),
+              (and (srl GPR:$rs1, (i64 16)), (i64 0x00000000FFFF0000))),
+          (SHFLI GPR:$rs1, (i64 16))>;
+def : Pat<(or (or (and (shl GPR:$rs1, (i64 8)), (i64 0x00FF000000FF0000)),
+                  (and GPR:$rs1, (i64 0xFF0000FFFF0000FF))),
+              (and (srl GPR:$rs1, (i64 8)), (i64 0x0000FF000000FF00))),
+          (SHFLI GPR:$rs1, (i64 8))>;
+def : Pat<(or (or (and (shl GPR:$rs1, (i64 4)), (i64 0x0F000F000F000F00)),
+                  (and GPR:$rs1, (i64 0xF00FF00FF00FF00F))),
+              (and (srl GPR:$rs1, (i64 4)), (i64 0x00F000F000F000F0))),
+          (SHFLI GPR:$rs1, (i64 4))>;
+def : Pat<(or (or (and (shl GPR:$rs1, (i64 2)), (i64 0x3030303030303030)),
+                  (and GPR:$rs1, (i64 0xC3C3C3C3C3C3C3C3))),
+              (and (srl GPR:$rs1, (i64 2)), (i64 0x0C0C0C0C0C0C0C0C))),
+          (SHFLI GPR:$rs1, (i64 2))>;
+def : Pat<(or (or (and (shl GPR:$rs1, (i64 1)), (i64 0x4444444444444444)),
+                  (and GPR:$rs1, (i64 0x9999999999999999))),
+              (and (srl GPR:$rs1, (i64 1)), (i64 0x2222222222222222))),
+          (SHFLI GPR:$rs1, (i64 1))>;
+} // Predicates = [HasStdExtZbp, IsRV64]
+
+let Predicates = [HasStdExtZbb, IsRV64] in {
+def : Pat<(and (add GPR:$rs, simm12:$simm12), 0xFFFFFFFF),
+          (ADDIWU GPR:$rs, simm12:$simm12)>;
+def : Pat<(and (add GPR:$rs1, GPR:$rs2), 0xFFFFFFFF),
+          (ADDWU GPR:$rs1, GPR:$rs2)>;
+def : Pat<(and (sub GPR:$rs1, GPR:$rs2), 0xFFFFFFFF),
+          (SUBWU GPR:$rs1, GPR:$rs2)>;
+def : Pat<(add GPR:$rs1, (and GPR:$rs2, 0xFFFFFFFF)),
+          (ADDUW GPR:$rs1, GPR:$rs2)>;
+def : Pat<(sub GPR:$rs1, (and GPR:$rs2, 0xFFFFFFFF)),
+          (SUBUW GPR:$rs1, GPR:$rs2)>;
+} // Predicates = [HasStdExtZbb, IsRV64]
Index: llvm/test/CodeGen/RISCV/rv32Zbb.ll
===================================================================
--- /dev/null
+++ llvm/test/CodeGen/RISCV/rv32Zbb.ll
@@ -0,0 +1,153 @@
+; RUN: llc -mtriple=riscv32 -verify-machineinstrs < %s \
+; RUN:   | FileCheck %s -check-prefix=RV32I
+; RUN: llc -mtriple=riscv32 -mattr=+experimental-b -verify-machineinstrs < %s \
+; RUN:   | FileCheck %s -check-prefix=RV32IB
+; RUN: llc -mtriple=riscv32 -mattr=+experimental-zbb -verify-machineinstrs < %s \
+; RUN:   | FileCheck %s -check-prefix=RV32IB
+
+define i32 @slo(i32 %a, i32 %b) nounwind {
+; RV32I-NOT:    slo a0, a0, a1
+;
+; RV32IB-LABEL: slo:
+; RV32IB:       # %bb.0:
+; RV32IB-NEXT:    slo a0, a0, a1
+; RV32IB-NEXT:    ret
+  %neg = xor i32 %a, -1
+  %shl = shl i32 %neg, %b
+  %neg1 = xor i32 %shl, -1
+  ret i32 %neg1
+}
+
+define i32 @sro(i32 %a, i32 %b) nounwind {
+; RV32I-NOT:    sro a0, a0, a1
+;
+; RV32IB-LABEL: sro:
+; RV32IB:       # %bb.0:
+; RV32IB-NEXT:    sro a0, a0, a1
+; RV32IB-NEXT:    ret
+  %neg = xor i32 %a, -1
+  %shr = lshr i32 %neg, %b
+  %neg1 = xor i32 %shr, -1
+  ret i32 %neg1
+}
+
+declare i32 @llvm.ctlz.i32(i32, i1)
+
+define i32 @ctlz_i32(i32 %a) nounwind {
+; RV32I-NOT:    clz a0, a0
+;
+; RV32IB-LABEL: ctlz_i32:
+; RV32IB:       # %bb.0:
+; RV32IB-NEXT:    beqz a0, .LBB2_2
+; RV32IB-NEXT:  # %bb.1: # %cond.false
+; RV32IB-NEXT:    clz a0, a0
+; RV32IB-NEXT:    ret
+; RV32IB-NEXT:  .LBB2_2:
+; RV32IB-NEXT:    addi a0, zero, 32
+; RV32IB-NEXT:    ret
+  %1 = call i32 @llvm.ctlz.i32(i32 %a, i1 false)
+  ret i32 %1
+}
+
+declare i32 @llvm.cttz.i32(i32, i1)
+
+define i32 @cttz_i32(i32 %a) nounwind {
+; RV32I-NOT:    ctz a0, a0
+;
+; RV32IB-LABEL: cttz_i32:
+; RV32IB:       # %bb.0:
+; RV32IB-NEXT:    beqz a0, .LBB3_2
+; RV32IB-NEXT:  # %bb.1: # %cond.false
+; RV32IB-NEXT:    ctz a0, a0
+; RV32IB-NEXT:    ret
+; RV32IB-NEXT:  .LBB3_2:
+; RV32IB-NEXT:    addi a0, zero, 32
+; RV32IB-NEXT:    ret
+  %1 = call i32 @llvm.cttz.i32(i32 %a, i1 false)
+  ret i32 %1
+}
+
+declare i32 @llvm.ctpop.i32(i32)
+
+define i32 @ctpop_i32(i32 %a) nounwind {
+; RV32I-NOT:    pcnt a0, a0
+;
+; RV32IB-LABEL: ctpop_i32:
+; RV32IB:       # %bb.0:
+; RV32IB-NEXT:    pcnt a0, a0
+; RV32IB-NEXT:    ret
+  %1 = call i32 @llvm.ctpop.i32(i32 %a)
+  ret i32 %1
+}
+
+define i32 @sextb(i32 %a) nounwind {
+; RV32I-NOT:    sext.b a0, a0
+;
+; RV32IB-LABEL: sextb:
+; RV32IB:       # %bb.0:
+; RV32IB-NEXT:    sext.b a0, a0
+; RV32IB-NEXT:    ret
+  %shl = shl i32 %a, 24
+  %shr = ashr exact i32 %shl, 24
+  ret i32 %shr
+}
+
+define i32 @sexth(i32 %a) nounwind {
+; RV32I-NOT:    sext.h a0, a0
+;
+; RV32IB-LABEL: sexth:
+; RV32IB:       # %bb.0:
+; RV32IB-NEXT:    sext.h a0, a0
+; RV32IB-NEXT:    ret
+  %shl = shl i32 %a, 16
+  %shr = ashr exact i32 %shl, 16
+  ret i32 %shr
+}
+
+define i32 @min(i32 %a, i32 %b) nounwind {
+; RV32I-NOT:    min a0, a0, a1
+;
+; RV32IB-LABEL: min:
+; RV32IB:       # %bb.0:
+; RV32IB-NEXT:    min a0, a0, a1
+; RV32IB-NEXT:    ret
+  %cmp = icmp slt i32 %a, %b
+  %cond = select i1 %cmp, i32 %a, i32 %b
+  ret i32 %cond
+}
+
+define i32 @max(i32 %a, i32 %b) nounwind {
+; RV32I-NOT:    max a0, a0, a1
+;
+; RV32IB-LABEL: max:
+; RV32IB:       # %bb.0:
+; RV32IB-NEXT:    max a0, a0, a1
+; RV32IB-NEXT:    ret
+  %cmp = icmp sgt i32 %a, %b
+  %cond = select i1 %cmp, i32 %a, i32 %b
+  ret i32 %cond
+}
+
+define i32 @minu(i32 %a, i32 %b) nounwind {
+; RV32I-NOT:    minu a0, a0, a1
+;
+; RV32IB-LABEL: minu:
+; RV32IB:       # %bb.0:
+; RV32IB-NEXT:    minu a0, a0, a1
+; RV32IB-NEXT:    ret
+  %cmp = icmp ult i32 %a, %b
+  %cond = select i1 %cmp, i32 %a, i32 %b
+  ret i32 %cond
+}
+
+define i32 @maxu(i32 %a, i32 %b) nounwind {
+; RV32I-NOT:    maxu a0, a0, a1
+;
+; RV32IB-LABEL: maxu:
+; RV32IB:       # %bb.0:
+; RV32IB-NEXT:    maxu a0, a0, a1
+; RV32IB-NEXT:    ret
+  %cmp = icmp ugt i32 %a, %b
+  %cond = select i1 %cmp, i32 %a, i32 %b
+  ret i32 %cond
+}
Index: llvm/test/CodeGen/RISCV/rv32Zbbp.ll
===================================================================
--- /dev/null
+++ llvm/test/CodeGen/RISCV/rv32Zbbp.ll
@@ -0,0 +1,110 @@
+; RUN: llc -mtriple=riscv32 -verify-machineinstrs < %s \
+; RUN:   | FileCheck %s -check-prefix=RV32I
+; RUN: llc -mtriple=riscv32 -mattr=+experimental-b -verify-machineinstrs < %s \
+; RUN:   | FileCheck %s -check-prefix=RV32IB
+; RUN: llc -mtriple=riscv32 -mattr=+experimental-zbb -verify-machineinstrs < %s \
+; RUN:   | FileCheck %s -check-prefix=RV32IB
+; RUN: llc -mtriple=riscv32 -mattr=+experimental-zbp -verify-machineinstrs < %s \
+; RUN:   | FileCheck %s -check-prefix=RV32IB
+
+define i32 @andn(i32 %a, i32 %b) nounwind {
+; RV32I-NOT:    andn a0, a0, a1
+;
+; RV32IB-LABEL: andn:
+; RV32IB:       # %bb.0:
+; RV32IB-NEXT:    andn a0, a0, a1
+; RV32IB-NEXT:    ret
+  %neg = xor i32 %b, -1
+  %and = and i32 %neg, %a
+  ret i32 %and
+}
+
+define i32 @orn(i32 %a, i32 %b) nounwind {
+; RV32I-NOT:    orn a0, a0, a1
+;
+; RV32IB-LABEL: orn:
+; RV32IB:       # %bb.0:
+; RV32IB-NEXT:    orn a0, a0, a1
+; RV32IB-NEXT:    ret
+  %neg = xor i32 %b, -1
+  %or = or i32 %neg, %a
+  ret i32 %or
+}
+
+define i32 @xnor(i32 %a, i32 %b) nounwind {
+; RV32I-NOT:    xnor a0, a0, a1
+;
+; RV32IB-LABEL: xnor:
+; RV32IB:       # %bb.0:
+; RV32IB-NEXT:    xnor a0, a0, a1
+; RV32IB-NEXT:    ret
+  %neg = xor i32 %a, -1
+  %xor = xor i32 %neg, %b
+  ret i32 %xor
+}
+
+declare i32 @llvm.fshl.i32(i32, i32, i32)
+
+define i32 @rol(i32 %a, i32 %b) nounwind {
+; RV32I-NOT:    rol a0, a0, a1
+;
+; RV32IB-LABEL: rol:
+; RV32IB:       # %bb.0:
+; RV32IB-NEXT:    rol a0, a0, a1
+; RV32IB-NEXT:    ret
+  %or = tail call i32 @llvm.fshl.i32(i32 %a, i32 %a, i32 %b)
+  ret i32 %or
+}
+
+declare i32 @llvm.fshr.i32(i32, i32, i32)
+
+define i32 @ror(i32 %a, i32 %b) nounwind {
+; RV32I-NOT:    ror a0, a0, a1
+;
+; RV32IB-LABEL: ror:
+; RV32IB:       # %bb.0:
+; RV32IB-NEXT:    ror a0, a0, a1
+; RV32IB-NEXT:    ret
+  %or = tail call i32 @llvm.fshr.i32(i32 %a, i32 %a, i32 %b)
+  ret i32 %or
+}
+
+define i32 @pack(i32 %a, i32 %b) nounwind {
+; RV32I-NOT:    pack a0, a0, a1
+;
+; RV32IB-LABEL: pack:
+; RV32IB:       # %bb.0:
+; RV32IB-NEXT:    pack a0, a0, a1
+; RV32IB-NEXT:    ret
+  %shl = and i32 %a, 65535
+  %shl1 = shl i32 %b, 16
+  %or = or i32 %shl1, %shl
+  ret i32 %or
+}
+
+define i32 @packu(i32 %a, i32 %b) nounwind {
+; RV32I-NOT:    packu a0, a0, a1
+;
+; RV32IB-LABEL: packu:
+; RV32IB:       # %bb.0:
+; RV32IB-NEXT:    packu a0, a0, a1
+; RV32IB-NEXT:    ret
+  %shr = lshr i32 %a, 16
+  %shr1 = and i32 %b, -65536
+  %or = or i32 %shr1, %shr
+  ret i32 %or
+}
+
+define i32 @packh(i32 %a, i32 %b) nounwind {
+; RV32I-NOT:    packh a0, a0, a1
+;
+; RV32IB-LABEL: packh:
+; RV32IB:       # %bb.0:
+; RV32IB-NEXT:    packh a0, a0, a1
+; RV32IB-NEXT:    ret
+  %and = and i32 %a, 255
+  %and1 = shl i32 %b, 8
+  %shl = and i32 %and1, 65280
+  %or = or i32 %shl, %and
+  ret i32 %or
+}
Index: llvm/test/CodeGen/RISCV/rv32Zbp.ll
===================================================================
--- /dev/null
+++ llvm/test/CodeGen/RISCV/rv32Zbp.ll
@@ -0,0 +1,251 @@
+; RUN: llc -mtriple=riscv32 -verify-machineinstrs < %s \
+; RUN:   | FileCheck %s -check-prefix=RV32I
+; RUN: llc -mtriple=riscv32 -mattr=+experimental-b -verify-machineinstrs < %s \
+; RUN:   | FileCheck %s -check-prefix=RV32IB
+; RUN: llc -mtriple=riscv32 -mattr=+experimental-zbp -verify-machineinstrs < %s \
+; RUN:   | FileCheck %s -check-prefix=RV32IB
+
+define i32 @gorc1(i32 %a) nounwind {
+; RV32I-NOT:    orc.p a0, a0
+;
+; RV32IB-LABEL: gorc1:
+; RV32IB:       # %bb.0:
+; RV32IB-NEXT:    orc.p a0, a0
+; RV32IB-NEXT:    ret
+  %and = shl i32 %a, 1
+  %shl = and i32 %and, -1431655766
+  %and1 = lshr i32 %a, 1
+  %shr = and i32 %and1, 1431655765
+  %or = or i32 %shr, %a
+  %or2 = or i32 %or, %shl
+  ret i32 %or2
+}
+
+define i32 @gorc2(i32 %a) nounwind {
+; RV32I-NOT:    orc2.n a0, a0
+;
+; RV32IB-LABEL: gorc2:
+; RV32IB:       # %bb.0:
+; RV32IB-NEXT:    orc2.n a0, a0
+; RV32IB-NEXT:    ret
+  %and = shl i32 %a, 2
+  %shl = and i32 %and, -858993460
+  %and1 = lshr i32 %a, 2
+  %shr = and i32 %and1, 858993459
+  %or = or i32 %shr, %a
+  %or2 = or i32 %or, %shl
+  ret i32 %or2
+}
+
+define i32 @gorc4(i32 %a) nounwind {
+; RV32I-NOT:    orc4.b a0, a0
+;
+; RV32IB-LABEL: gorc4:
+; RV32IB:       # %bb.0:
+; RV32IB-NEXT:    orc4.b a0, a0
+; RV32IB-NEXT:    ret
+  %and = shl i32 %a, 4
+  %shl = and i32 %and, -252645136
+  %and1 = lshr i32 %a, 4
+  %shr = and i32 %and1, 252645135
+  %or = or i32 %shr, %a
+  %or2 = or i32 %or, %shl
+  ret i32 %or2
+}
+
+define i32 @gorc8(i32 %a) nounwind {
+; RV32I-NOT:    orc8.h a0, a0
+;
+; RV32IB-LABEL: gorc8:
+; RV32IB:       # %bb.0:
+; RV32IB-NEXT:    orc8.h a0, a0
+; RV32IB-NEXT:    ret
+  %and = shl i32 %a, 8
+  %shl = and i32 %and, -16711936
+  %and1 = lshr i32 %a, 8
+  %shr = and i32 %and1, 16711935
+  %or = or i32 %shr, %a
+  %or2 = or i32 %or, %shl
+  ret i32 %or2
+}
+
+define i32 @gorc16(i32 %a) nounwind {
+; RV32I-NOT:    orc16 a0, a0
+;
+; RV32IB-LABEL: gorc16:
+; RV32IB:       # %bb.0:
+; RV32IB-NEXT:    orc16 a0, a0
+; RV32IB-NEXT:    ret
+  %shl = shl i32 %a, 16
+  %shr = lshr i32 %a, 16
+  %or = or i32 %shr, %a
+  %or2 = or i32 %or, %shl
+  ret i32 %or2
+}
+
+define i32 @grev1(i32 %a) nounwind {
+; RV32I-NOT:    rev.p a0, a0
+;
+; RV32IB-LABEL: grev1:
+; RV32IB:       # %bb.0:
+; RV32IB-NEXT:    rev.p a0, a0
+; RV32IB-NEXT:    ret
+  %and = shl i32 %a, 1
+  %shl = and i32 %and, -1431655766
+  %and1 = lshr i32 %a, 1
+  %shr = and i32 %and1, 1431655765
+  %or = or i32 %shl, %shr
+  ret i32 %or
+}
+
+define i32 @grev2(i32 %a) nounwind {
+; RV32I-NOT:    rev2.n a0, a0
+;
+; RV32IB-LABEL: grev2:
+; RV32IB:       # %bb.0:
+; RV32IB-NEXT:    rev2.n a0, a0
+; RV32IB-NEXT:    ret
+  %and = shl i32 %a, 2
+  %shl = and i32 %and, -858993460
+  %and1 = lshr i32 %a, 2
+  %shr = and i32 %and1, 858993459
+  %or = or i32 %shl, %shr
+  ret i32 %or
+}
+
+define i32 @grev4(i32 %a) nounwind {
+; RV32I-NOT:    rev4.b a0, a0
+;
+; RV32IB-LABEL: grev4:
+; RV32IB:       # %bb.0:
+; RV32IB-NEXT:    rev4.b a0, a0
+; RV32IB-NEXT:    ret
+  %and = shl i32 %a, 4
+  %shl = and i32 %and, -252645136
+  %and1 = lshr i32 %a, 4
+  %shr = and i32 %and1, 252645135
+  %or = or i32 %shl, %shr
+  ret i32 %or
+}
+
+define i32 @grev8(i32 %a) nounwind {
+; RV32I-NOT:    rev8.h a0, a0
+;
+; RV32IB-LABEL: grev8:
+; RV32IB:       # %bb.0:
+; RV32IB-NEXT:    rev8.h a0, a0
+; RV32IB-NEXT:    ret
+  %and = shl i32 %a, 8
+  %shl = and i32 %and, -16711936
+  %and1 = lshr i32 %a, 8
+  %shr = and i32 %and1, 16711935
+  %or = or i32 %shl, %shr
+  ret i32 %or
+}
+
+define i32 @grev16(i32 %a) nounwind {
+; RV32I-NOT:    rev16 a0, a0
+;
+; RV32IB-LABEL: grev16:
+; RV32IB:       # %bb.0:
+; RV32IB-NEXT:    rev16 a0, a0
+; RV32IB-NEXT:    ret
+  %shl = shl i32 %a, 16
+  %shr = lshr i32 %a, 16
+  %or = or i32 %shl, %shr
+  ret i32 %or
+}
+
+declare i32 @llvm.bswap.i32(i32)
+
+define i32 @bswap_i32(i32 %a) nounwind {
+; RV32I-NOT:    rev8 a0, a0
+;
+; RV32IB-LABEL: bswap_i32:
+; RV32IB:       # %bb.0:
+; RV32IB-NEXT:    rev8 a0, a0
+; RV32IB-NEXT:    ret
+  %1 = tail call i32 @llvm.bswap.i32(i32 %a)
+  ret i32 %1
+}
+
+declare i32 @llvm.bitreverse.i32(i32)
+
+define i32 @bitreverse_i32(i32 %a) nounwind {
+; RV32I-NOT:    rev a0, a0
+;
+; RV32IB-LABEL: bitreverse_i32:
+; RV32IB:       # %bb.0:
+; RV32IB-NEXT:    rev a0, a0
+; RV32IB-NEXT:    ret
+  %1 = tail call i32 @llvm.bitreverse.i32(i32 %a)
+  ret i32 %1
+}
+
+define i32 @shfl1(i32 %a, i32 %b) nounwind {
+; RV32I-NOT:    zip.n a0, a0
+;
+; RV32IB-LABEL: shfl1:
+; RV32IB:       # %bb.0:
+; RV32IB-NEXT:    zip.n a0, a0
+; RV32IB-NEXT:    ret
+  %and = and i32 %a, -1717986919
+  %shl = shl i32 %a, 1
+  %and1 = and i32 %shl, 1145324612
+  %or = or i32 %and1, %and
+  %shr = lshr i32 %a, 1
+  %and2 = and i32 %shr, 572662306
+  %or3 = or i32 %or, %and2
+  ret i32 %or3
+}
+
+define i32 @shfl2(i32 %a, i32 %b) nounwind {
+; RV32I-NOT:    zip2.b a0, a0
+;
+; RV32IB-LABEL: shfl2:
+; RV32IB:       # %bb.0:
+; RV32IB-NEXT:    zip2.b a0, a0
+; RV32IB-NEXT:    ret
+  %and = and i32 %a, -1010580541
+  %shl = shl i32 %a, 2
+  %and1 = and i32 %shl, 808464432
+  %or = or i32 %and1, %and
+  %shr = lshr i32 %a, 2
+  %and2 = and i32 %shr, 202116108
+  %or3 = or i32 %or, %and2
+  ret i32 %or3
+}
+
+define i32 @shfl4(i32 %a, i32 %b) nounwind {
+; RV32I-NOT:    zip4.h a0, a0
+;
+; RV32IB-LABEL: shfl4:
+; RV32IB:       # %bb.0:
+; RV32IB-NEXT:    zip4.h a0, a0
+; RV32IB-NEXT:    ret
+  %and = and i32 %a, -267390961
+  %shl = shl i32 %a, 4
+  %and1 = and i32 %shl, 251662080
+  %or = or i32 %and1, %and
+  %shr = lshr i32 %a, 4
+  %and2 = and i32 %shr, 15728880
+  %or3 = or i32 %or, %and2
+  ret i32 %or3
+}
+
+define i32 @shfl8(i32 %a, i32 %b) nounwind {
+; RV32I-NOT:    zip8 a0, a0
+;
+; RV32IB-LABEL: shfl8:
+; RV32IB:       # %bb.0:
+; RV32IB-NEXT:    zip8 a0, a0
+; RV32IB-NEXT:    ret
+  %and = and i32 %a, -16776961
+  %shl = shl i32 %a, 8
+  %and1 = and i32 %shl, 16711680
+  %or = or i32 %and1, %and
+  %shr = lshr i32 %a, 8
+  %and2 = and i32 %shr, 65280
+  %or3 = or i32 %or, %and2
+  ret i32 %or3
+}
Index: llvm/test/CodeGen/RISCV/rv32Zbs.ll
===================================================================
--- /dev/null
+++ llvm/test/CodeGen/RISCV/rv32Zbs.ll
@@ -0,0 +1,55 @@
+; RUN: llc -mtriple=riscv32 -verify-machineinstrs < %s \
+; RUN:   | FileCheck %s -check-prefix=RV32I
+; RUN: llc -mtriple=riscv32 -mattr=+experimental-b -verify-machineinstrs < %s \
+; RUN:   | FileCheck %s -check-prefix=RV32IB
+; RUN: llc -mtriple=riscv32 -mattr=+experimental-zbs -verify-machineinstrs < %s \
+; RUN:   | FileCheck %s -check-prefix=RV32IB
+
+define i32 @sbclr(i32 %a, i32 %b) nounwind {
+; RV32I-NOT:    sbclr a0, a0, a1
+;
+; RV32IB-LABEL: sbclr:
+; RV32IB:       # %bb.0:
+; RV32IB-NEXT:    sbclr a0, a0, a1
+; RV32IB-NEXT:    ret
+  %shl = shl i32 1, %b
+  %neg = xor i32 %shl, -1
+  %and = and i32 %neg, %a
+  ret i32 %and
+}
+
+define i32 @sbset(i32 %a, i32 %b) nounwind {
+; RV32I-NOT:    sbset a0, a0, a1
+;
+; RV32IB-LABEL: sbset:
+; RV32IB:       # %bb.0:
+; RV32IB-NEXT:    sbset a0, a0, a1
+; RV32IB-NEXT:    ret
+  %shl = shl i32 1, %b
+  %or = or i32 %shl, %a
+  ret i32 %or
+}
+
+define dso_local i32 @sbinv(i32 %a, i32 %b) nounwind {
+; RV32I-NOT:    sbinv a0, a0, a1
+;
+; RV32IB-LABEL: sbinv:
+; RV32IB:       # %bb.0:
+; RV32IB-NEXT:    sbinv a0, a0, a1
+; RV32IB-NEXT:    ret
+  %shl = shl i32 1, %b
+  %xor = xor i32 %shl, %a
+  ret i32 %xor
+}
+
+define i32 @sbext(i32 %a, i32 %b) nounwind {
+; RV32I-NOT:    sbext a0, a0, a1
+;
+; RV32IB-LABEL: sbext:
+; RV32IB:       # %bb.0:
+; RV32IB-NEXT:    sbext a0, a0, a1
+; RV32IB-NEXT:    ret
+  %shr = lshr i32 %a, %b
+  %and = and i32 %shr, 1
+  ret i32 %and
+}
Index: llvm/test/CodeGen/RISCV/rv32Zbt.ll
===================================================================
--- /dev/null
+++ llvm/test/CodeGen/RISCV/rv32Zbt.ll
@@ -0,0 +1,58 @@
+; RUN: llc -mtriple=riscv32 -verify-machineinstrs < %s \
+; RUN:   | FileCheck %s -check-prefix=RV32I
+; RUN: llc -mtriple=riscv32 -mattr=+experimental-b -verify-machineinstrs < %s \
+; RUN:   | FileCheck %s -check-prefix=RV32IB
+; RUN: llc -mtriple=riscv32 -mattr=+experimental-zbt -verify-machineinstrs < %s \
+; RUN:   | FileCheck %s -check-prefix=RV32IB
+
+define i32 @cmix(i32 %a, i32 %b, i32 %c) nounwind {
+; RV32I-NOT:    cmix a0, a1, a0, a2
+;
+; RV32IB-LABEL: cmix:
+; RV32IB:       # %bb.0:
+; RV32IB-NEXT:    cmix a0, a1, a0, a2
+; RV32IB-NEXT:    ret
+  %and = and i32 %b, %a
+  %neg = xor i32 %b, -1
+  %and1 = and i32 %neg, %c
+  %or = or i32 %and1, %and
+  ret i32 %or
+}
+
+define i32 @cmov(i32 %a, i32 %b, i32 %c) nounwind {
+; RV32I-NOT:    cmov a0, a1, a0, a2
+;
+; RV32IB-LABEL: cmov:
+; RV32IB:       # %bb.0:
+; RV32IB-NEXT:    cmov a0, a1, a0, a2
+; RV32IB-NEXT:    ret
+  %tobool = icmp eq i32 %b, 0
+  %cond = select i1 %tobool, i32 %c, i32 %a
+  ret i32 %cond
+}
+
+declare i32 @llvm.fshl.i32(i32, i32, i32)
+
+define i32 @fshl(i32 %a, i32 %b, i32 %c) nounwind {
+; RV32I-NOT:    fsl a0, a0, a2, a1
+;
+; RV32IB-LABEL: fshl:
+; RV32IB:       # %bb.0:
+; RV32IB-NEXT:    fsl a0, a0, a2, a1
+; RV32IB-NEXT:    ret
+  %1 = tail call i32 @llvm.fshl.i32(i32 %a, i32 %b, i32 %c)
+  ret i32 %1
+}
+
+declare i32 @llvm.fshr.i32(i32, i32, i32)
+
+define i32 @fshr(i32 %a, i32 %b, i32 %c) nounwind {
+; RV32I-NOT:    fsr a0, a0, a2, a1
+;
+; RV32IB-LABEL: fshr:
+; RV32IB:       # %bb.0:
+; RV32IB-NEXT:    fsr a0, a0, a2, a1
+; RV32IB-NEXT:    ret
+  %1 = tail call i32 @llvm.fshr.i32(i32 %a, i32 %b, i32 %c)
+  ret i32 %1
+}
Index: llvm/test/CodeGen/RISCV/rv64Zbb.ll
===================================================================
--- /dev/null
+++ llvm/test/CodeGen/RISCV/rv64Zbb.ll
@@ -0,0 +1,213 @@
+; RUN: llc -mtriple=riscv64 -verify-machineinstrs < %s \
+; RUN:   | FileCheck %s -check-prefix=RV64I
+; RUN: llc -mtriple=riscv64 -mattr=+experimental-b -verify-machineinstrs < %s \
+; RUN:   | FileCheck %s -check-prefix=RV64IB
+; RUN: llc -mtriple=riscv64 -mattr=+experimental-zbb -verify-machineinstrs < %s \
+; RUN:   | FileCheck %s -check-prefix=RV64IB
+
+define i64 @slo(i64 %a, i64 %b) nounwind {
+; RV64I-NOT:    slo a0, a0, a1
+;
+; RV64IB-LABEL: slo:
+; RV64IB:       # %bb.0:
+; RV64IB-NEXT:    slo a0, a0, a1
+; RV64IB-NEXT:    ret
+  %neg = xor i64 %a, -1
+  %shl = shl i64 %neg, %b
+  %neg1 = xor i64 %shl, -1
+  ret i64 %neg1
+}
+
+define i64 @sro(i64 %a, i64 %b) nounwind {
+; RV64I-NOT:    sro a0, a0, a1
+;
+; RV64IB-LABEL: sro:
+; RV64IB:       # %bb.0:
+; RV64IB-NEXT:    sro a0, a0, a1
+; RV64IB-NEXT:    ret
+  %neg = xor i64 %a, -1
+  %shr = lshr i64 %neg, %b
+  %neg1 = xor i64 %shr, -1
+  ret i64 %neg1
+}
+
+declare i64 @llvm.ctlz.i64(i64, i1)
+
+define i64 @ctlz_i64(i64 %a) nounwind {
+; RV64I-NOT:    clz a0, a0
+;
+; RV64IB-LABEL: ctlz_i64:
+; RV64IB:       # %bb.0:
+; RV64IB-NEXT:    beqz a0, .LBB2_2
+; RV64IB-NEXT:  # %bb.1: # %cond.false
+; RV64IB-NEXT:    clz a0, a0
+; RV64IB-NEXT:    ret
+; RV64IB-NEXT:  .LBB2_2:
+; RV64IB-NEXT:    addi a0, zero, 64
+; RV64IB-NEXT:    ret
+  %1 = call i64 @llvm.ctlz.i64(i64 %a, i1 false)
+  ret i64 %1
+}
+
+declare i64 @llvm.cttz.i64(i64, i1)
+
+define i64 @cttz_i64(i64 %a) nounwind {
+; RV64I-NOT:    ctz a0, a0
+;
+; RV64IB-LABEL: cttz_i64:
+; RV64IB:       # %bb.0:
+; RV64IB-NEXT:    beqz a0, .LBB3_2
+; RV64IB-NEXT:  # %bb.1: # %cond.false
+; RV64IB-NEXT:    ctz a0, a0
+; RV64IB-NEXT:    ret
+; RV64IB-NEXT:  .LBB3_2:
+; RV64IB-NEXT:    addi a0, zero, 64
+; RV64IB-NEXT:    ret
+  %1 = call i64 @llvm.cttz.i64(i64 %a, i1 false)
+  ret i64 %1
+}
+
+declare i64 @llvm.ctpop.i64(i64)
+
+define i64 @ctpop_i64(i64 %a) nounwind {
+; RV64I-NOT:    pcnt a0, a0
+;
+; RV64IB-LABEL: ctpop_i64:
+; RV64IB:       # %bb.0:
+; RV64IB-NEXT:    pcnt a0, a0
+; RV64IB-NEXT:    ret
+  %1 = call i64 @llvm.ctpop.i64(i64 %a)
+  ret i64 %1
+}
+
+define i64 @sextb(i64 %a) nounwind {
+; RV64I-NOT:    sext.b a0, a0
+;
+; RV64IB-LABEL: sextb:
+; RV64IB:       # %bb.0:
+; RV64IB-NEXT:    sext.b a0, a0
+; RV64IB-NEXT:    ret
+  %shl = shl i64 %a, 56
+  %shr = ashr exact i64 %shl, 56
+  ret i64 %shr
+}
+
+define i64 @sexth(i64 %a) nounwind {
+; RV64I-NOT:    sext.h a0, a0
+;
+; RV64IB-LABEL: sexth:
+; RV64IB:       # %bb.0:
+; RV64IB-NEXT:    sext.h a0, a0
+; RV64IB-NEXT:    ret
+  %shl = shl i64 %a, 48
+  %shr = ashr exact i64 %shl, 48
+  ret i64 %shr
+}
+
+define i64 @min(i64 %a, i64 %b) nounwind {
+; RV64I-NOT:    min a0, a0, a1
+;
+; RV64IB-LABEL: min:
+; RV64IB:       # %bb.0:
+; RV64IB-NEXT:    min a0, a0, a1
+; RV64IB-NEXT:    ret
+  %cmp = icmp slt i64 %a, %b
+  %cond = select i1 %cmp, i64 %a, i64 %b
+  ret i64 %cond
+}
+
+define i64 @max(i64 %a, i64 %b) nounwind {
+; RV64I-NOT:    max a0, a0, a1
+;
+; RV64IB-LABEL: max:
+; RV64IB:       # %bb.0:
+; RV64IB-NEXT:    max a0, a0, a1
+; RV64IB-NEXT:    ret
+  %cmp = icmp sgt i64 %a, %b
+  %cond = select i1 %cmp, i64 %a, i64 %b
+  ret i64 %cond
+}
+
+define i64 @minu(i64 %a, i64 %b) nounwind {
+; RV64I-NOT:    minu a0, a0, a1
+;
+; RV64IB-LABEL: minu:
+; RV64IB:       # %bb.0:
+; RV64IB-NEXT:    minu a0, a0, a1
+; RV64IB-NEXT:    ret
+  %cmp = icmp ult i64 %a, %b
+  %cond = select i1 %cmp, i64 %a, i64 %b
+  ret i64 %cond
+}
+
+define i64 @maxu(i64 %a, i64 %b) nounwind {
+; RV64I-NOT:    maxu a0, a0, a1
+;
+; RV64IB-LABEL: maxu:
+; RV64IB:       # %bb.0:
+; RV64IB-NEXT:    maxu a0, a0, a1
+; RV64IB-NEXT:    ret
+  %cmp = icmp ugt i64 %a, %b
+  %cond = select i1 %cmp, i64 %a, i64 %b
+  ret i64 %cond
+}
+
+define i64 @addiwu(i64 %a) nounwind {
+; RV64I-NOT:    addiwu a0, a0, 1
+;
+; RV64IB-LABEL: addiwu:
+; RV64IB:       # %bb.0:
+; RV64IB-NEXT:    addiwu a0, a0, 1
+; RV64IB-NEXT:    ret
+  %conv = add i64 %a, 1
+  %conv1 = and i64 %conv, 4294967295
+  ret i64 %conv1
+}
+
+define i64 @addwu(i64 %a, i64 %b) nounwind {
+; RV64I-NOT:    addwu a0, a1, a0
+;
+; RV64IB-LABEL: addwu:
+; RV64IB:       # %bb.0:
+; RV64IB-NEXT:    addwu a0, a1, a0
+; RV64IB-NEXT:    ret
+  %add = add i64 %b, %a
+  %conv1 = and i64 %add, 4294967295
+  ret i64 %conv1
+}
+
+define i64 @subwu(i64 %a, i64 %b) nounwind {
+; RV64I-NOT:    subwu a0, a0, a1
+;
+; RV64IB-LABEL: subwu:
+; RV64IB:       # %bb.0:
+; RV64IB-NEXT:    subwu a0, a0, a1
+; RV64IB-NEXT:    ret
+  %sub = sub i64 %a, %b
+  %conv1 = and i64 %sub, 4294967295
+  ret i64 %conv1
+}
+
+define i64 @adduw(i64 %a, i64 %b) nounwind {
+; RV64I-NOT:    addu.w a0, a0, a1
+;
+; RV64IB-LABEL: adduw:
+; RV64IB:       # %bb.0:
+; RV64IB-NEXT:    addu.w a0, a0, a1
+; RV64IB-NEXT:    ret
+  %and = and i64 %b, 4294967295
+  %add = add i64 %and, %a
+  ret i64 %add
+}
+
+define i64 @subuw(i64 %a, i64 %b) nounwind {
+; RV64I-NOT:    subu.w a0, a0, a1
+;
+; RV64IB-LABEL: subuw:
+; RV64IB:       # %bb.0:
+; RV64IB-NEXT:    subu.w a0, a0, a1
+; RV64IB-NEXT:    ret
+  %and = and i64 %b, 4294967295
+  %sub = sub i64 %a, %and
+  ret i64 %sub
+}
Index: llvm/test/CodeGen/RISCV/rv64Zbbp.ll
===================================================================
--- /dev/null
+++ llvm/test/CodeGen/RISCV/rv64Zbbp.ll
@@ -0,0 +1,110 @@
+; RUN: llc -mtriple=riscv64 -verify-machineinstrs < %s \
+; RUN:   | FileCheck %s -check-prefix=RV64I
+; RUN: llc -mtriple=riscv64 -mattr=+experimental-b -verify-machineinstrs < %s \
+; RUN:   | FileCheck %s -check-prefix=RV64IB
+; RUN: llc -mtriple=riscv64 -mattr=+experimental-zbb -verify-machineinstrs < %s \
+; RUN:   | FileCheck %s -check-prefix=RV64IB
+; RUN: llc -mtriple=riscv64 -mattr=+experimental-zbp -verify-machineinstrs < %s \
+; RUN:   | FileCheck %s -check-prefix=RV64IB
+
+define i64 @andn(i64 %a, i64 %b) nounwind {
+; RV64I-NOT:    andn a0, a0, a1
+;
+; RV64IB-LABEL: andn:
+; RV64IB:       # %bb.0:
+; RV64IB-NEXT:    andn a0, a0, a1
+; RV64IB-NEXT:    ret
+  %neg = xor i64 %b, -1
+  %and = and i64 %neg, %a
+  ret i64 %and
+}
+
+define i64 @orn(i64 %a, i64 %b) nounwind {
+; RV64I-NOT:    orn a0, a0, a1
+;
+; RV64IB-LABEL: orn:
+; RV64IB:       # %bb.0:
+; RV64IB-NEXT:    orn a0, a0, a1
+; RV64IB-NEXT:    ret
+  %neg = xor i64 %b, -1
+  %or = or i64 %neg, %a
+  ret i64 %or
+}
+
+define i64 @xnor(i64 %a, i64 %b) nounwind {
+; RV64I-NOT:    xnor a0, a0, a1
+;
+; RV64IB-LABEL: xnor:
+; RV64IB:       # %bb.0:
+; RV64IB-NEXT:    xnor a0, a0, a1
+; RV64IB-NEXT:    ret
+  %neg = xor i64 %a, -1
+  %xor = xor i64 %neg, %b
+  ret i64 %xor
+}
+
+declare i64 @llvm.fshl.i64(i64, i64, i64)
+
+define i64 @rol(i64 %a, i64 %b) nounwind {
+; RV64I-NOT:    rol a0, a0, a1
+;
+; RV64IB-LABEL: rol:
+; RV64IB:       # %bb.0:
+; RV64IB-NEXT:    rol a0, a0, a1
+; RV64IB-NEXT:    ret
+  %or = tail call i64 @llvm.fshl.i64(i64 %a, i64 %a, i64 %b)
+  ret i64 %or
+}
+
+declare i64 @llvm.fshr.i64(i64, i64, i64)
+
+define i64 @ror(i64 %a, i64 %b) nounwind {
+; RV64I-NOT:    ror a0, a0, a1
+;
+; RV64IB-LABEL: ror:
+; RV64IB:       # %bb.0:
+; RV64IB-NEXT:    ror a0, a0, a1
+; RV64IB-NEXT:    ret
+  %or = tail call i64 @llvm.fshr.i64(i64 %a, i64 %a, i64 %b)
+  ret i64 %or
+}
+
+define i64 @pack(i64 %a, i64 %b) nounwind {
+; RV64I-NOT:    pack a0, a0, a1
+;
+; RV64IB-LABEL: pack:
+; RV64IB:       # %bb.0:
+; RV64IB-NEXT:    pack a0, a0, a1
+; RV64IB-NEXT:    ret
+  %shl = and i64 %a, 4294967295
+  %shl1 = shl i64 %b, 32
+  %or = or i64 %shl1, %shl
+  ret i64 %or
+}
+
+define i64 @packu(i64 %a, i64 %b) nounwind {
+; RV64I-NOT:    packu a0, a0, a1
+;
+; RV64IB-LABEL: packu:
+; RV64IB:       # %bb.0:
+; RV64IB-NEXT:    packu a0, a0, a1
+; RV64IB-NEXT:    ret
+  %shr = lshr i64 %a, 32
+  %shr1 = and i64 %b, -4294967296
+  %or = or i64 %shr1, %shr
+  ret i64 %or
+}
+
+define i64 @packh(i64 %a, i64 %b) nounwind {
+; RV64I-NOT:    packh a0, a0, a1
+;
+; RV64IB-LABEL: packh:
+; RV64IB:       # %bb.0:
+; RV64IB-NEXT:    packh a0, a0, a1
+; RV64IB-NEXT:    ret
+  %and = and i64 %a, 255
+  %and1 = shl i64 %b, 8
+  %shl = and i64 %and1, 65280
+  %or = or i64 %shl, %and
+  ret i64 %or
+}
Index: llvm/test/CodeGen/RISCV/rv64Zbp.ll
===================================================================
--- /dev/null
+++ llvm/test/CodeGen/RISCV/rv64Zbp.ll
@@ -0,0 +1,299 @@
+; RUN: llc -mtriple=riscv64 -verify-machineinstrs < %s \
+; RUN:   | FileCheck %s -check-prefix=RV64I
+; RUN: llc -mtriple=riscv64 -mattr=+experimental-b -verify-machineinstrs < %s \
+; RUN:   | FileCheck %s -check-prefix=RV64IB
+; RUN: llc -mtriple=riscv64 -mattr=+experimental-zbp -verify-machineinstrs < %s \
+; RUN:   | FileCheck %s -check-prefix=RV64IB
+
+define i64 @gorc1(i64 %a) nounwind {
+; RV64I-NOT:    orc.p a0, a0
+;
+; RV64IB-LABEL: gorc1:
+; RV64IB:       # %bb.0:
+; RV64IB-NEXT:    orc.p a0, a0
+; RV64IB-NEXT:    ret
+  %and = shl i64 %a, 1
+  %shl = and i64 %and, -6148914691236517206
+  %and1 = lshr i64 %a, 1
+  %shr = and i64 %and1, 6148914691236517205
+  %or = or i64 %shr, %a
+  %or2 = or i64 %or, %shl
+  ret i64 %or2
+}
+
+define i64 @gorc2(i64 %a) nounwind {
+; RV64I-NOT:    orc2.n a0, a0
+;
+; RV64IB-LABEL: gorc2:
+; RV64IB:       # %bb.0:
+; RV64IB-NEXT:    orc2.n a0, a0
+; RV64IB-NEXT:    ret
+  %and = shl i64 %a, 2
+  %shl = and i64 %and, -3689348814741910324
+  %and1 = lshr i64 %a, 2
+  %shr = and i64 %and1, 3689348814741910323
+  %or = or i64 %shr, %a
+  %or2 = or i64 %or, %shl
+  ret i64 %or2
+}
+
+define i64 @gorc4(i64 %a) nounwind {
+; RV64I-NOT:    orc4.b a0, a0
+;
+; RV64IB-LABEL: gorc4:
+; RV64IB:       # %bb.0:
+; RV64IB-NEXT:    orc4.b a0, a0
+; RV64IB-NEXT:    ret
+  %and = shl i64 %a, 4
+  %shl = and i64 %and, -1085102592571150096
+  %and1 = lshr i64 %a, 4
+  %shr = and i64 %and1, 1085102592571150095
+  %or = or i64 %shr, %a
+  %or2 = or i64 %or, %shl
+  ret i64 %or2
+}
+
+define i64 @gorc8(i64 %a) nounwind {
+; RV64I-NOT:    orc8.h a0, a0
+;
+; RV64IB-LABEL: gorc8:
+; RV64IB:       # %bb.0:
+; RV64IB-NEXT:    orc8.h a0, a0
+; RV64IB-NEXT:    ret
+  %and = shl i64 %a, 8
+  %shl = and i64 %and, -71777214294589696
+  %and1 = lshr i64 %a, 8
+  %shr = and i64 %and1, 71777214294589695
+  %or = or i64 %shr, %a
+  %or2 = or i64 %or, %shl
+  ret i64 %or2
+}
+
+define i64 @gorc16(i64 %a) nounwind {
+; RV64I-NOT:    orc16.w a0, a0
+;
+; RV64IB-LABEL: gorc16:
+; RV64IB:       # %bb.0:
+; RV64IB-NEXT:    orc16.w a0, a0
+; RV64IB-NEXT:    ret
+  %and = shl i64 %a, 16
+  %shl = and i64 %and, -281470681808896
+  %and1 = lshr i64 %a, 16
+  %shr = and i64 %and1, 281470681808895
+  %or = or i64 %shr, %a
+  %or2 = or i64 %or, %shl
+  ret i64 %or2
+}
+
+define i64 @gorc32(i64 %a) nounwind {
+; RV64I-NOT:    orc32 a0, a0
+;
+; RV64IB-LABEL: gorc32:
+; RV64IB:       # %bb.0:
+; RV64IB-NEXT:    orc32 a0, a0
+; RV64IB-NEXT:    ret
+  %shl = shl i64 %a, 32
+  %shr = lshr i64 %a, 32
+  %or = or i64 %shr, %a
+  %or2 = or i64 %or, %shl
+  ret i64 %or2
+}
+
+define i64 @grev1(i64 %a) nounwind {
+; RV64I-NOT:    rev.p a0, a0
+;
+; RV64IB-LABEL: grev1:
+; RV64IB:       # %bb.0:
+; RV64IB-NEXT:    rev.p a0, a0
+; RV64IB-NEXT:    ret
+  %and = shl i64 %a, 1
+  %shl = and i64 %and, -6148914691236517206
+  %and1 = lshr i64 %a, 1
+  %shr = and i64 %and1, 6148914691236517205
+  %or = or i64 %shl, %shr
+  ret i64 %or
+}
+
+define i64 @grev2(i64 %a) nounwind {
+; RV64I-NOT:    rev2.n a0, a0
+;
+; RV64IB-LABEL: grev2:
+; RV64IB:       # %bb.0:
+; RV64IB-NEXT:    rev2.n a0, a0
+; RV64IB-NEXT:    ret
+  %and = shl i64 %a, 2
+  %shl = and i64 %and, -3689348814741910324
+  %and1 = lshr i64 %a, 2
+  %shr = and i64 %and1, 3689348814741910323
+  %or = or i64 %shl, %shr
+  ret i64 %or
+}
+
+define i64 @grev4(i64 %a) nounwind {
+; RV64I-NOT:    rev4.b a0, a0
+;
+; RV64IB-LABEL: grev4:
+; RV64IB:       # %bb.0:
+; RV64IB-NEXT:    rev4.b a0, a0
+; RV64IB-NEXT:    ret
+  %and = shl i64 %a, 4
+  %shl = and i64 %and, -1085102592571150096
+  %and1 = lshr i64 %a, 4
+  %shr = and i64 %and1, 1085102592571150095
+  %or = or i64 %shl, %shr
+  ret i64 %or
+}
+
+define i64 @grev8(i64 %a) nounwind {
+; RV64I-NOT:    rev8.h a0, a0
+;
+; RV64IB-LABEL: grev8:
+; RV64IB:       # %bb.0:
+; RV64IB-NEXT:    rev8.h a0, a0
+; RV64IB-NEXT:    ret
+  %and = shl i64 %a, 8
+  %shl = and i64 %and, -71777214294589696
+  %and1 = lshr i64 %a, 8
+  %shr = and i64 %and1, 71777214294589695
+  %or = or i64 %shl, %shr
+  ret i64 %or
+}
+
+define i64 @grev16(i64 %a) nounwind {
+; RV64I-NOT:    rev16.w a0, a0
+;
+; RV64IB-LABEL: grev16:
+; RV64IB:       # %bb.0:
+; RV64IB-NEXT:    rev16.w a0, a0
+; RV64IB-NEXT:    ret
+  %and = shl i64 %a, 16
+  %shl = and i64 %and, -281470681808896
+  %and1 = lshr i64 %a, 16
+  %shr = and i64 %and1, 281470681808895
+  %or = or i64 %shl, %shr
+  ret i64 %or
+}
+
+define i64 @grev32(i64 %a) nounwind {
+; RV64I-NOT:    rev32 a0, a0
+;
+; RV64IB-LABEL: grev32:
+; RV64IB:       # %bb.0:
+; RV64IB-NEXT:    rev32 a0, a0
+; RV64IB-NEXT:    ret
+  %shl = shl i64 %a, 32
+  %shr = lshr i64 %a, 32
+  %or = or i64 %shl, %shr
+  ret i64 %or
+}
+
+declare i64 @llvm.bswap.i64(i64)
+
+define i64 @bswap_i64(i64 %a) {
+; RV64I-NOT:    rev8 a0, a0
+;
+; RV64IB-LABEL: bswap_i64:
+; RV64IB:       # %bb.0:
+; RV64IB-NEXT:    rev8 a0, a0
+; RV64IB-NEXT:    ret
+  %1 = call i64 @llvm.bswap.i64(i64 %a)
+  ret i64 %1
+}
+
+declare i64 @llvm.bitreverse.i64(i64)
+
+define i64 @bitreverse_i64(i64 %a) nounwind {
+; RV64IB-NOT:    rev a0, a0
+;
+; RV64IB-LABEL: bitreverse_i64:
+; RV64IB:       # %bb.0:
+; RV64IB-NEXT:    rev a0, a0
+; RV64IB-NEXT:    ret
+  %1 = call i64 @llvm.bitreverse.i64(i64 %a)
+  ret i64 %1
+}
+
+define i64 @shfl1(i64 %a, i64 %b) nounwind {
+; RV64I-NOT:    zip.n a0, a0
+;
+; RV64IB-LABEL: shfl1:
+; RV64IB:       # %bb.0:
+; RV64IB-NEXT:    zip.n a0, a0
+; RV64IB-NEXT:    ret
+  %and = and i64 %a, -7378697629483820647
+  %shl = shl i64 %a, 1
+  %and1 = and i64 %shl, 4919131752989213764
+  %or = or i64 %and1, %and
+  %shr = lshr i64 %a, 1
+  %and2 = and i64 %shr, 2459565876494606882
+  %or3 = or i64 %or, %and2
+  ret i64 %or3
+}
+
+define i64 @shfl2(i64 %a, i64 %b) nounwind {
+; RV64I-NOT:    zip2.b a0, a0
+;
+; RV64IB-LABEL: shfl2:
+; RV64IB:       # %bb.0:
+; RV64IB-NEXT:    zip2.b a0, a0
+; RV64IB-NEXT:    ret
+  %and = and i64 %a, -4340410370284600381
+  %shl = shl i64 %a, 2
+  %and1 = and i64 %shl, 3472328296227680304
+  %or = or i64 %and1, %and
+  %shr = lshr i64 %a, 2
+  %and2 = and i64 %shr, 868082074056920076
+  %or3 = or i64 %or, %and2
+  ret i64 %or3
+}
+
+define i64 @shfl4(i64 %a, i64 %b) nounwind {
+; RV64I-NOT:    zip4.h a0, a0
+;
+; RV64IB-LABEL: shfl4:
+; RV64IB:       # %bb.0:
+; RV64IB-NEXT:    zip4.h a0, a0
+; RV64IB-NEXT:    ret
+  %and = and i64 %a, -1148435428713435121
+  %shl = shl i64 %a, 4
+  %and1 = and i64 %shl, 1080880403494997760
+  %or = or i64 %and1, %and
+  %shr = lshr i64 %a, 4
+  %and2 = and i64 %shr, 67555025218437360
+  %or3 = or i64 %or, %and2
+  ret i64 %or3
+}
+
+define i64 @shfl8(i64 %a, i64 %b) nounwind {
+; RV64I-NOT:    zip8.w a0, a0
+;
+; RV64IB-LABEL: shfl8:
+; RV64IB:       # %bb.0:
+; RV64IB-NEXT:    zip8.w a0, a0
+; RV64IB-NEXT:    ret
+  %and = and i64 %a, -72056494543077121
+  %shl = shl i64 %a, 8
+  %and1 = and i64 %shl, 71776119077928960
+  %or = or i64 %and1, %and
+  %shr = lshr i64 %a, 8
+  %and2 = and i64 %shr, 280375465148160
+  %or3 = or i64 %or, %and2
+  ret i64 %or3
+}
+
+define i64 @shfl16(i64 %a, i64 %b) nounwind {
+; RV64I-NOT:    zip16 a0, a0
+;
+; RV64IB-LABEL: shfl16:
+; RV64IB:       # %bb.0:
+; RV64IB-NEXT:    zip16 a0, a0
+; RV64IB-NEXT:    ret
+  %and = and i64 %a, -281474976645121
+  %shl = shl i64 %a, 16
+  %and1 = and i64 %shl, 281470681743360
+  %or = or i64 %and1, %and
+  %shr = lshr i64 %a, 16
+  %and2 = and i64 %shr, 4294901760
+  %or3 = or i64 %or, %and2
+  ret i64 %or3
+}
Index: llvm/test/CodeGen/RISCV/rv64Zbs.ll
===================================================================
--- /dev/null
+++ llvm/test/CodeGen/RISCV/rv64Zbs.ll
@@ -0,0 +1,61 @@
+; RUN: llc -mtriple=riscv64 -verify-machineinstrs < %s \
+; RUN:   | FileCheck %s -check-prefix=RV64I
+; RUN: llc -mtriple=riscv64 -mattr=+experimental-b -verify-machineinstrs < %s \
+; RUN:   | FileCheck %s -check-prefix=RV64IB
+; RUN: llc -mtriple=riscv64 -mattr=+experimental-zbs -verify-machineinstrs < %s \
+; RUN:   | FileCheck %s -check-prefix=RV64IB
+
+define i64 @sbclr(i64 %a, i64 %b) nounwind {
+; RV64I-NOT:    sbclr a0, a0, a1
+;
+; RV64IB-LABEL: sbclr:
+; RV64IB:       # %bb.0:
+; RV64IB-NEXT:    sbclr a0, a0, a1
+; RV64IB-NEXT:    ret
+  %sh_prom = trunc i64 %b to i32
+  %shl = shl i32 1, %sh_prom
+  %neg = xor i32 %shl, -1
+  %conv = sext i32 %neg to i64
+  %and = and i64 %conv, %a
+  ret i64 %and
+}
+
+define i64 @sbset(i64 %a, i64 %b) nounwind {
+; RV64I-NOT:    sbset a0, a0, a1
+;
+; RV64IB-LABEL: sbset:
+; RV64IB:       # %bb.0:
+; RV64IB-NEXT:    sbset a0, a0, a1
+; RV64IB-NEXT:    ret
+  %sh_prom = trunc i64 %b to i32
+  %shl = shl i32 1, %sh_prom
+  %conv = sext i32 %shl to i64
+  %or = or i64 %conv, %a
+  ret i64 %or
+}
+
+define i64 @sbinv(i64 %a, i64 %b) nounwind {
+; RV64I-NOT:    sbinv a0, a0, a1
+;
+; RV64IB-LABEL: sbinv:
+; RV64IB:       # %bb.0:
+; RV64IB-NEXT:    sbinv a0, a0, a1
+; RV64IB-NEXT:    ret
+  %sh_prom = trunc i64 %b to i32
+  %shl = shl i32 1, %sh_prom
+  %conv = sext i32 %shl to i64
+  %xor = xor i64 %conv, %a
+  ret i64 %xor
+}
+
+define i64 @sbext(i64 %a, i64 %b) nounwind {
+; RV64I-NOT:    sbext a0, a0, a1
+;
+; RV64IB-LABEL: sbext:
+; RV64IB:       # %bb.0:
+; RV64IB-NEXT:    sbext a0, a0, a1
+; RV64IB-NEXT:    ret
+  %shr = lshr i64 %a, %b
+  %and = and i64 %shr, 1
+  ret i64 %and
+}
Index: llvm/test/CodeGen/RISCV/rv64Zbt.ll
===================================================================
--- /dev/null
+++ llvm/test/CodeGen/RISCV/rv64Zbt.ll
@@ -0,0 +1,58 @@
+; RUN: llc -mtriple=riscv64 -verify-machineinstrs < %s \
+; RUN:   | FileCheck %s -check-prefix=RV64I
+; RUN: llc -mtriple=riscv64 -mattr=+experimental-b -verify-machineinstrs < %s \
+; RUN:   | FileCheck %s -check-prefix=RV64IB
+; RUN: llc -mtriple=riscv64 -mattr=+experimental-zbt -verify-machineinstrs < %s \
+; RUN:   | FileCheck %s -check-prefix=RV64IB
+
+define i64 @cmix(i64 %a, i64 %b, i64 %c) nounwind {
+; RV64I-NOT:    cmix a0, a1, a0, a2
+;
+; RV64IB-LABEL: cmix:
+; RV64IB:       # %bb.0:
+; RV64IB-NEXT:    cmix a0, a1, a0, a2
+; RV64IB-NEXT:    ret
+  %and = and i64 %b, %a
+  %neg = xor i64 %b, -1
+  %and1 = and i64 %neg, %c
+  %or = or i64 %and1, %and
+  ret i64 %or
+}
+
+define i64 @cmov(i64 %a, i64 %b, i64 %c) nounwind {
+; RV64I-NOT:    cmov a0, a1, a0, a2
+;
+; RV64IB-LABEL: cmov:
+; RV64IB:       # %bb.0:
+; RV64IB-NEXT:    cmov a0, a1, a0, a2
+; RV64IB-NEXT:    ret
+  %tobool = icmp eq i64 %b, 0
+  %cond = select i1 %tobool, i64 %c, i64 %a
+  ret i64 %cond
+}
+
+declare i64 @llvm.fshl.i64(i64, i64, i64)
+
+define i64 @fshl(i64 %a, i64 %b, i64 %c) nounwind {
+; RV64I-NOT:    fsl a0, a0, a2, a1
+;
+; RV64IB-LABEL: fshl:
+; RV64IB:       # %bb.0:
+; RV64IB-NEXT:    fsl a0, a0, a2, a1
+; RV64IB-NEXT:    ret
+  %1 = tail call i64 @llvm.fshl.i64(i64 %a, i64 %b, i64 %c)
+  ret i64 %1
+}
+
+declare i64 @llvm.fshr.i64(i64, i64, i64)
+
+define i64 @fshr(i64 %a, i64 %b, i64 %c) nounwind {
+; RV64I-NOT:    fsr a0, a0, a2, a1
+;
+; RV64IB-LABEL: fshr:
+; RV64IB:       # %bb.0:
+; RV64IB-NEXT:    fsr a0, a0, a2, a1
+; RV64IB-NEXT:    ret
+  %1 = tail call i64 @llvm.fshr.i64(i64 %a, i64 %b, i64 %c)
+  ret i64 %1
+}