[llvm-branch-commits] [llvm] AMDGPU: Support VALU add instructions in localstackalloc (PR #101692)

[Matt Arsenault via llvm-branch-commits]

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@@ -797,6 +797,23 @@ int64_t SIRegisterInfo::getScratchInstrOffset(const MachineInstr *MI) const {
 
 int64_t SIRegisterInfo::getFrameIndexInstrOffset(const MachineInstr *MI,
                                                  int Idx) const {
+  switch (MI->getOpcode()) {
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arsenm wrote:

The only modifier would be clamp to saturate the add. It should work out the same since the clamp bit will be preserved 

https://github.com/llvm/llvm-project/pull/101692