[AArch64] Add FPSR to reserved registers

[spavloff]

This is follow-up of #81867. FPSR was not added to reserved registers, this resulted in machine verifier fails.

[llvmbot]

@llvm/pr-subscribers-backend-aarch64

Author: Serge Pavlov (spavloff)

Changes

This is follow-up of #81867. FPSR was not added to reserved registers, this resulted in machine verifier fails.

---

Full diff: https://github.com/llvm/llvm-project/pull/82907.diff

1 Files Affected:

• (modified) llvm/lib/Target/AArch64/AArch64RegisterInfo.cpp (+1)

diff --git a/llvm/lib/Target/AArch64/AArch64RegisterInfo.cpp b/llvm/lib/Target/AArch64/AArch64RegisterInfo.cpp
index 48e1c1bc73022c..b919c116445c8b 100644
--- 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);