topperc wrote:
The RISCVInsertVSETVLI approach is probably just a matter of doing something
like. May should check if an implicit def already exists before adding it. I
don't think addOperand checks for duplicates.
```
diff --git a/llvm/lib/Target/RISCV/RISCVInsertVSETVLI.cpp
b/llvm/lib/Target/RISCV/RISCVInsertVSETVLI.cpp
index 7433603daff8..2247610c21ff 100644
--- a/llvm/lib/Target/RISCV/RISCVInsertVSETVLI.cpp
+++ b/llvm/lib/Target/RISCV/RISCVInsertVSETVLI.cpp
@@ -1531,6 +1531,13 @@ void RISCVInsertVSETVLI::emitVSETVLIs(MachineBasicBlock
&MBB) {
/*isImp*/ true));
}
+ if (MI.isInlineAsm()) {
+ MI.addOperand(MachineOperand::CreateReg(RISCV::VL, /*isDef*/ true,
+ /*isImp*/ true));
+ MI.addOperand(MachineOperand::CreateReg(RISCV::VTYPE, /*isDef*/ true,
+ /*isImp*/ true));
+ }
+
if (MI.isCall() || MI.isInlineAsm() ||
MI.modifiesRegister(RISCV::VL, /*TRI=*/nullptr) ||
MI.modifiesRegister(RISCV::VTYPE, /*TRI=*/nullptr))
```
https://github.com/llvm/llvm-project/pull/128636
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