[AMDGPU] Be more specific in needsFrameBaseReg

A condition "mayLoadOrStore" is too broad for that function.

Differential Revision: https://reviews.llvm.org/D95700

diff --git a/llvm/lib/Target/AMDGPU/SIRegisterInfo.cpp b/llvm/lib/Target/AMDGPU/SIRegisterInfo.cpp
index 7a45d8c..44d23eb 100644 (file)
--- a/llvm/lib/Target/AMDGPU/SIRegisterInfo.cpp
+++ b/llvm/lib/Target/AMDGPU/SIRegisterInfo.cpp
@@ -408,7 +408,7 @@ int64_t SIRegisterInfo::getFrameIndexInstrOffset(const MachineInstr *MI,
 }
 
 bool SIRegisterInfo::needsFrameBaseReg(MachineInstr *MI, int64_t Offset) const {
-  if (!MI->mayLoadOrStore())
+  if (!SIInstrInfo::isMUBUF(*MI) && !SIInstrInfo::isFLATScratch(*MI))
     return false;
 
   int64_t FullOffset = Offset + getScratchInstrOffset(MI);