[RISCV] Inogre CallingConv::RISCV_VectorCall in getCalleeSavedRegs if V/Zve is not enabled.

topperc · topperc · commit 435771228caf · 2024-05-13T16:04:09.000-07:00
We can't save vector registers without V/Zve.
diff --git a/llvm/lib/Target/RISCV/RISCVRegisterInfo.cpp b/llvm/lib/Target/RISCV/RISCVRegisterInfo.cpp
@@ -72,7 +72,8 @@ RISCVRegisterInfo::getCalleeSavedRegs(const MachineFunction *MF) const {
   }
 
   bool HasVectorCSR =
-      MF->getFunction().getCallingConv() == CallingConv::RISCV_VectorCall;
+      MF->getFunction().getCallingConv() == CallingConv::RISCV_VectorCall &&
+      Subtarget.hasVInstructions();
 
   switch (Subtarget.getTargetABI()) {
   default:

Original file line number	Diff line number	Diff line change
`@@ -72,7 +72,8 @@ RISCVRegisterInfo::getCalleeSavedRegs(const MachineFunction *MF) const {`
`72`	`72`	`}`
`73`	`73`
`74`	`74`	`bool HasVectorCSR =`
`75`		`- MF->getFunction().getCallingConv() == CallingConv::RISCV_VectorCall;`
	`75`	`+ MF->getFunction().getCallingConv() == CallingConv::RISCV_VectorCall &&`
	`76`	`+ Subtarget.hasVInstructions();`
`76`	`77`
`77`	`78`	`switch (Subtarget.getTargetABI()) {`
`78`	`79`	`default:`