[clang][Sema] Only check RVV types if we have them

[tbaederr]

isRVVType() is suprisingly expensive, so do the checks only if the target has rvv types.

[llvmbot]

@llvm/pr-subscribers-clang

Changes

isRVVType() is suprisingly expensive, so do the checks only if the target has rvv types.

---

Full diff: https://github.com/llvm/llvm-project/pull/67669.diff

1 Files Affected:

• (modified) clang/lib/Sema/Sema.cpp (+1-1)

diff --git a/clang/lib/Sema/Sema.cpp b/clang/lib/Sema/Sema.cpp
index a401017d4c1c0b8..2d175c9b9a791dd 100644
--- a/clang/lib/Sema/Sema.cpp
+++ b/clang/lib/Sema/Sema.cpp
@@ -2050,7 +2050,7 @@ 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.

[tbaederr]

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