[llvm] [DAGCombiner][AMDGPU] Track signedness in ByteProviders (PR #65995)

[Matt Arsenault via llvm-commits]

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@@ -61,13 +66,17 @@ template <typename ISelOp> class ByteProvider {
   // DestOffset
   int64_t SrcOffset = 0;
 
+  // Tracks whether or not the byte is treated as a signed operand -- useful
+  // for arithmetic combines.
+  bool IsSigned = 0;
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arsenm wrote:

= false

https://github.com/llvm/llvm-project/pull/65995