[llvm] [AMDGPU] IGLP: Fix static variables (PR #137549)

[Matt Arsenault via llvm-commits]

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@@ -86,6 +88,24 @@ class AMDGPUGWSResourcePseudoSourceValue final : public AMDGPUPseudoSourceValue
   }
 };
 
+struct MFMASmallGemmSingleWaveCache {
+  unsigned DSWCount = 0;
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arsenm wrote:

I'm not sure what "DSW" is supposed to stand for 

https://github.com/llvm/llvm-project/pull/137549