Mark 64-bit register RA_64 unused too.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148918 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/Mips/MipsFrameLowering.cpp b/lib/Target/Mips/MipsFrameLowering.cpp
index dda20c5..9ca69de 100644
--- a/lib/Target/Mips/MipsFrameLowering.cpp
+++ b/lib/Target/Mips/MipsFrameLowering.cpp
@@ -322,7 +322,6 @@
processFunctionBeforeCalleeSavedScan(MachineFunction &MF,
RegScavenger *RS) const {
MachineRegisterInfo& MRI = MF.getRegInfo();
- unsigned RA = STI.isABI_N64() ? Mips::RA_64 : Mips::RA;
unsigned FP = STI.isABI_N64() ? Mips::FP_64 : Mips::FP;
// FIXME: remove this code if register allocator can correctly mark
@@ -338,7 +337,9 @@
// To correct this, $ra is explicitly marked unused if there is no
// function call.
if (MF.getFrameInfo()->hasCalls())
- MRI.setPhysRegUsed(RA);
- else
- MRI.setPhysRegUnused(RA);
+ MRI.setPhysRegUsed(Mips::RA);
+ else {
+ MRI.setPhysRegUnused(Mips::RA);
+ MRI.setPhysRegUnused(Mips::RA_64);
+ }
}