[llvm] [AMDGPU] SIWholeQuadMode: Ensure earliest WQM entry point for PS (PR #123266)

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git-clang-format --diff a761e26b2364ea457b79b9a4bea6d792e4913d24 05e9d72a01dac0533f38238b005bdf7768cda2c5 --extensions cpp -- llvm/lib/Target/AMDGPU/SIWholeQuadMode.cpp
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View the diff from clang-format here.
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``````````diff
diff --git a/llvm/lib/Target/AMDGPU/SIWholeQuadMode.cpp b/llvm/lib/Target/AMDGPU/SIWholeQuadMode.cpp
index 466bc3861c..38f86ca3e9 100644
--- a/llvm/lib/Target/AMDGPU/SIWholeQuadMode.cpp
+++ b/llvm/lib/Target/AMDGPU/SIWholeQuadMode.cpp
@@ -1305,7 +1305,7 @@ void SIWholeQuadMode::processBlock(MachineBasicBlock &MBB, bool IsEntry) {
   // Record initial state is block information.
   BI.InitialState = State;
 
-  for (unsigned Idx = 0; ; ++Idx) {
+  for (unsigned Idx = 0;; ++Idx) {
     MachineBasicBlock::iterator Next = II;
     char Needs = StateExact | StateWQM; // Strict mode is disabled by default.
     char OutNeeds = 0;

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https://github.com/llvm/llvm-project/pull/123266