[llvm] [AMDGPU] Folding imm offset in more cases for scratch access (PR #70634)

[Jay Foad via llvm-commits]

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@@ -1860,7 +1905,7 @@ bool AMDGPUDAGToDAGISel::SelectScratchSVAddr(SDNode *N, SDValue Addr,
           CurDAG->getTargetConstant(RemainderOffset, SDLoc(), MVT::i32));
         VAddr = SDValue(VMov, 0);
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jayfoad wrote:

Nit, pre-existing problem: could this put a negative value in VAddr?

https://github.com/llvm/llvm-project/pull/70634