[clang][Sema] Only check RVV types if we have them (#67669)

tbaederr · web-flow · commit 3717147ee6e4 · 2023-10-06T09:56:05.000+02:00
isRVVType() is suprisingly expensive, so do the checks only if the
target has rvv types.
diff --git a/clang/lib/Sema/Sema.cpp b/clang/lib/Sema/Sema.cpp
@@ -2071,7 +2071,7 @@ void Sema::checkTypeSupport(QualType Ty, SourceLocation Loc, ValueDecl *D) {
         targetDiag(D->getLocation(), diag::note_defined_here, FD) << D;
     }
 
-    if (Ty->isRVVType())
+    if (TI.hasRISCVVTypes() && Ty->isRVVType())
       checkRVVTypeSupport(Ty, Loc, D);
 
     // Don't allow SVE types in functions without a SVE target.

Original file line number	Diff line number	Diff line change
`@@ -2071,7 +2071,7 @@ void Sema::checkTypeSupport(QualType Ty, SourceLocation Loc, ValueDecl *D) {`
`2071`	`2071`	`targetDiag(D->getLocation(), diag::note_defined_here, FD) << D;`
`2072`	`2072`	`}`
`2073`	`2073`
`2074`		`- if (Ty->isRVVType())`
	`2074`	`+ if (TI.hasRISCVVTypes() && Ty->isRVVType())`
`2075`	`2075`	`checkRVVTypeSupport(Ty, Loc, D);`
`2076`	`2076`
`2077`	`2077`	`// Don't allow SVE types in functions without a SVE target.`