diff options
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Target/RISCV/RISCVInstrInfo.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/llvm/lib/Target/RISCV/RISCVInstrInfo.cpp b/llvm/lib/Target/RISCV/RISCVInstrInfo.cpp index 2e2e008..dee1ce6 100644 --- a/llvm/lib/Target/RISCV/RISCVInstrInfo.cpp +++ b/llvm/lib/Target/RISCV/RISCVInstrInfo.cpp @@ -201,8 +201,9 @@ static bool isConvertibleToVMV_V_V(const RISCVSubtarget &STI, if (MBBI->modifiesRegister(RISCV::VL)) return false; - // Go through all defined operands, including implicit defines. - for (const MachineOperand &MO : MBBI->operands()) { + // Only converting whole register copies to vmv.v.v when the defining + // value appears in the explicit operands. + for (const MachineOperand &MO : MBBI->explicit_operands()) { if (!MO.isReg() || !MO.isDef()) continue; if (!FoundDef && TRI->isSubRegisterEq(MO.getReg(), SrcReg)) { |