[llvm-branch-commits] [llvm] [NFC][AMDGPU] Fix scratch address materialization in SVS frame index fallback (PR #208624)

[Shilei Tian via llvm-branch-commits]

================
@@ -3239,26 +3239,14 @@ bool SIRegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator MI,
                   : RS->scavengeRegisterBackwards(AMDGPU::SReg_32_XM0RegClass,
                                                   MI, false, 0, !UseSGPR);
 
-      if ((!TmpSReg && !FrameReg) || (!TmpReg && !UseSGPR)) {
+      if (!TmpSReg || (!TmpReg && !UseSGPR)) {
+        assert(!FrameReg && "There is a frame register!");
----------------
shiltian wrote:

```suggestion
        assert(!FrameReg && "there is a frame register!");
```

https://github.com/llvm/llvm-project/pull/208624