diff --git a/llvm/lib/Target/RISCV/RISCVISelLowering.cpp b/llvm/lib/Target/RISCV/RISCVISelLowering.cpp index 523b857f9e6cd..c3071ad5cd697 100644 --- a/llvm/lib/Target/RISCV/RISCVISelLowering.cpp +++ b/llvm/lib/Target/RISCV/RISCVISelLowering.cpp @@ -18950,7 +18950,7 @@ static SDValue useInversedSetcc(SDNode *N, SelectionDAG &DAG, // Replace (setcc eq (and x, C)) with (setcc ne (and x, C))) to generate // BEXTI, where C is power of 2. - if (Subtarget.hasStdExtZbs() && VT.isScalarInteger() && + if (Subtarget.hasBEXTILike() && VT.isScalarInteger() && (Subtarget.hasCZEROLike() || Subtarget.hasVendorXTHeadCondMov())) { SDValue LHS = Cond.getOperand(0); SDValue RHS = Cond.getOperand(1); @@ -24939,8 +24939,8 @@ RISCVTargetLowering::BuildSDIVPow2(SDNode *N, const APInt &Divisor, bool RISCVTargetLowering::shouldFoldSelectWithSingleBitTest( EVT VT, const APInt &AndMask) const { - if (Subtarget.hasCZEROLike()) - return !Subtarget.hasStdExtZbs() && AndMask.ugt(1024); + if (Subtarget.hasCZEROLike() || Subtarget.hasVendorXTHeadCondMov()) + return !Subtarget.hasBEXTILike() && AndMask.ugt(1024); return TargetLowering::shouldFoldSelectWithSingleBitTest(VT, AndMask); } diff --git a/llvm/test/CodeGen/RISCV/condops.ll b/llvm/test/CodeGen/RISCV/condops.ll index 4fb3dff88017c..9d95f1f5c9615 100644 --- a/llvm/test/CodeGen/RISCV/condops.ll +++ b/llvm/test/CodeGen/RISCV/condops.ll @@ -3,7 +3,7 @@ ; RUN: llc -mtriple=riscv64 -target-abi=lp64f -mattr=+f,+zbs < %s | FileCheck %s -check-prefix=RV64I ; RUN: llc -mtriple=riscv32 -target-abi=ilp32f -mattr=+f,+zbs,+xventanacondops < %s | FileCheck %s -check-prefix=RV32XVENTANACONDOPS ; RUN: llc -mtriple=riscv64 -target-abi=lp64f -mattr=+f,+zbs,+xventanacondops < %s | FileCheck %s -check-prefix=RV64XVENTANACONDOPS -; RUN: llc -mtriple=riscv64 -target-abi=lp64f -mattr=+f,+zbs,+xtheadcondmov < %s | FileCheck %s -check-prefix=RV64XTHEADCONDMOV +; RUN: llc -mtriple=riscv64 -target-abi=lp64f -mattr=+f,+xtheadbs,+xtheadcondmov < %s | FileCheck %s -check-prefix=RV64XTHEADCONDMOV ; RUN: llc -mtriple=riscv32 -target-abi=ilp32f -mattr=+f,+zbs,+zicond < %s | FileCheck %s -check-prefix=RV32ZICOND ; RUN: llc -mtriple=riscv64 -target-abi=lp64f -mattr=+f,+zbs,+zicond < %s | FileCheck %s -check-prefix=RV64ZICOND @@ -126,7 +126,7 @@ define i64 @zero_singlebit1(i64 %rs1, i64 %rs2) { ; ; RV64XTHEADCONDMOV-LABEL: zero_singlebit1: ; RV64XTHEADCONDMOV: # %bb.0: -; RV64XTHEADCONDMOV-NEXT: bexti a1, a1, 12 +; RV64XTHEADCONDMOV-NEXT: th.tst a1, a1, 12 ; RV64XTHEADCONDMOV-NEXT: th.mvnez a0, zero, a1 ; RV64XTHEADCONDMOV-NEXT: ret ; @@ -179,9 +179,8 @@ define i64 @zero_singlebit2(i64 %rs1, i64 %rs2) { ; ; RV64XTHEADCONDMOV-LABEL: zero_singlebit2: ; RV64XTHEADCONDMOV: # %bb.0: -; RV64XTHEADCONDMOV-NEXT: slli a1, a1, 51 -; RV64XTHEADCONDMOV-NEXT: srai a1, a1, 63 -; RV64XTHEADCONDMOV-NEXT: and a0, a1, a0 +; RV64XTHEADCONDMOV-NEXT: th.tst a1, a1, 12 +; RV64XTHEADCONDMOV-NEXT: th.mveqz a0, zero, a1 ; RV64XTHEADCONDMOV-NEXT: ret ; ; RV32ZICOND-LABEL: zero_singlebit2: @@ -4297,9 +4296,8 @@ define i64 @single_bit(i64 %x) { ; ; RV64XTHEADCONDMOV-LABEL: single_bit: ; RV64XTHEADCONDMOV: # %bb.0: # %entry -; RV64XTHEADCONDMOV-NEXT: slli a1, a0, 53 -; RV64XTHEADCONDMOV-NEXT: srai a1, a1, 63 -; RV64XTHEADCONDMOV-NEXT: and a0, a1, a0 +; RV64XTHEADCONDMOV-NEXT: andi a1, a0, 1024 +; RV64XTHEADCONDMOV-NEXT: th.mveqz a0, zero, a1 ; RV64XTHEADCONDMOV-NEXT: ret ; ; RV32ZICOND-LABEL: single_bit: @@ -4353,9 +4351,8 @@ define i64 @single_bit2(i64 %x) { ; ; RV64XTHEADCONDMOV-LABEL: single_bit2: ; RV64XTHEADCONDMOV: # %bb.0: # %entry -; RV64XTHEADCONDMOV-NEXT: slli a1, a0, 52 -; RV64XTHEADCONDMOV-NEXT: srai a1, a1, 63 -; RV64XTHEADCONDMOV-NEXT: and a0, a1, a0 +; RV64XTHEADCONDMOV-NEXT: th.tst a1, a0, 11 +; RV64XTHEADCONDMOV-NEXT: th.mveqz a0, zero, a1 ; RV64XTHEADCONDMOV-NEXT: ret ; ; RV32ZICOND-LABEL: single_bit2: