[clang] [clang][SME] Ignore flatten/clang::always_inline statements for callees with mismatched streaming attributes (PR #116391)

[Sander de Smalen via cfe-commits]

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@@ -1143,30 +1146,62 @@ void AArch64TargetCodeGenInfo::checkFunctionABI(
   }
 }
 
-void AArch64TargetCodeGenInfo::checkFunctionCallABIStreaming(
-    CodeGenModule &CGM, SourceLocation CallLoc, const FunctionDecl *Caller,
-    const FunctionDecl *Callee) const {
-  if (!Caller || !Callee || !Callee->hasAttr<AlwaysInlineAttr>())
-    return;
+enum class ArmStreamingInlinability : uint8_t {
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sdesmalen-arm wrote:

nit: This is a bit of a misnomer, because NewZA has nothing to do with streaming mode. What about calling it `ArmInlineCompatibility` ?

https://github.com/llvm/llvm-project/pull/116391