[clang] [llvm] [AMDGPU] Infer amdgpu-no-flat-scratch-init attribute in AMDGPUAttributor (PR #94647)

[Shilei Tian via cfe-commits]

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@@ -439,6 +451,36 @@ struct AAAMDAttributesFunction : public AAAMDAttributes {
       indicatePessimisticFixpoint();
       return;
     }
+
+    { // FLAT_SCRATCH_INIT
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shiltian wrote:

This is misuse of `initialize`. This code should go to `updateImpl` of the corresponding AA.

https://github.com/llvm/llvm-project/pull/94647