[AArch64] Add FPSR to reserved registers (#82907)

spavloff · web-flow · commit a4096eaeb63e · 2024-02-25T13:16:09.000+07:00
This is follow-up of #81867. FPSR was not added to reserved registers, this resulted in machine verifier fails.
diff --git a/llvm/lib/Target/AArch64/AArch64RegisterInfo.cpp b/llvm/lib/Target/AArch64/AArch64RegisterInfo.cpp
@@ -450,6 +450,7 @@ AArch64RegisterInfo::getStrictlyReservedRegs(const MachineFunction &MF) const {
   }
 
   markSuperRegs(Reserved, AArch64::FPCR);
+  markSuperRegs(Reserved, AArch64::FPSR);
 
   if (MF.getFunction().getCallingConv() == CallingConv::GRAAL) {
     markSuperRegs(Reserved, AArch64::X27);

Original file line number	Diff line number	Diff line change
`@@ -450,6 +450,7 @@ AArch64RegisterInfo::getStrictlyReservedRegs(const MachineFunction &MF) const {`
`450`	`450`	`}`
`451`	`451`
`452`	`452`	`markSuperRegs(Reserved, AArch64::FPCR);`
	`453`	`+ markSuperRegs(Reserved, AArch64::FPSR);`
`453`	`454`
`454`	`455`	`if (MF.getFunction().getCallingConv() == CallingConv::GRAAL) {`
`455`	`456`	`markSuperRegs(Reserved, AArch64::X27);`