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

[Robert Imschweiler via llvm-commits]

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@@ -2099,58 +2088,56 @@ bool MFMASmallGemmSingleWaveOpt::applyIGLPStrategy(
     }
   }
 
-  if (IsInitial) {
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ro-i wrote:

I reworked the patch, which should fix this concern

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