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

[Johannes Doerfert via llvm-commits]

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@@ -433,6 +433,19 @@ struct AAAMDAttributesFunction : public AAAMDAttributes {
       indicatePessimisticFixpoint();
       return;
     }
+
+    bool HasAllocaOrASCast = false;
+    for (BasicBlock &BB : *F) {
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jdoerfert wrote:

isn't there a `instructions(F)`? Then you don't need 2 breaks, no bool, much easier.

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