[clang] [Clang][AArch64] Warn when calling streaming/non-streaming about vect… (PR #79842)
Dinar Temirbulatov via cfe-commits
cfe-commits at lists.llvm.org
Wed Feb 7 23:47:40 PST 2024
================
@@ -7513,6 +7516,44 @@ void Sema::checkCall(NamedDecl *FDecl, const FunctionProtoType *Proto,
}
}
+ auto *CallerFD = dyn_cast<FunctionDecl>(CurContext);
+ if (FD && CallerFD && Context.getTargetInfo().hasFeature("sme") &&
+ !FD->getBuiltinID()) {
+ // If the callee has an AArch64 SME __arm_locally_streaming attribute
+ // warn if this function returns VL-based value or pass any such argument,
+ // the streaming and non-streaming vector lengths may be different.
+ ArmStreamingType CalleeFnType = getArmStreamingFnType(FD);
+ ArmStreamingType CallerFnType = getArmStreamingFnType(CallerFD);
+ if (FD->hasAttr<ArmLocallyStreamingAttr>()) {
+ if (AnyScalableArgs)
+ Diag(Loc, diag::warn_sme_locally_streaming_has_vl_args);
+ if (FD->getReturnType()->isSizelessVectorType())
+ Diag(Loc, diag::warn_sme_locally_streaming_returns_vl);
+ }
----------------
dtemirbulatov wrote:
Done.
https://github.com/llvm/llvm-project/pull/79842
More information about the cfe-commits
mailing list