================
@@ -812,6 +819,24 @@ Address AArch64ABIInfo::EmitMSVAArg(CodeGenFunction &CGF,
Address VAListAddr,
/*allowHigherAlign*/ false);
}
+void AArch64TargetCodeGenInfo::checkFunctionCallABI(
+ CodeGenModule &CGM, SourceLocation CallLoc, const FunctionDecl *Caller,
+ const FunctionDecl *Callee, const CallArgList &Args) const {
+ if (!Callee->hasAttr<AlwaysInlineAttr>())
+ return;
+
+ auto CalleeStreamingMode = Sema::getArmStreamingFnType(Callee);
+ auto CallerStreamingMode = Sema::getArmStreamingFnType(Caller);
+
+ // The caller can inline the callee if their streaming modes match or the
+ // callee is streaming compatible
+ if (CalleeStreamingMode != CallerStreamingMode &&
----------------
sdesmalen-arm wrote:
Can you use the llvm::AArch64::SMEAttrs class and reuse some of the same
functionality as we have in `AArch64TTIImpl::areInlineCompatible` (ignoring the
`hasPossibleIncompatibleOps` part).
That way, we can also check for ZA, e.g.
```
__attribute__((always_inline)) __arm_new("za")
void bar(void) { }
void foo() { bar(); }
```
here `bar` cannot be inlined because that would require making `foo`
`__arm_new("za")` as well.
https://github.com/llvm/llvm-project/pull/77936
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