[Clang][RISCV] Use Decl for checkRVVTypeSupport (#65778)

Using ValueDecl will cause error for OpenMP. Decl should do the work.

Author: eopXD

clang/include/clang/Sema/Sema.h

@@ -13754,7 +13754,7 @@ class Sema final {
   bool CheckRISCVLMUL(CallExpr *TheCall, unsigned ArgNum);
   bool CheckRISCVBuiltinFunctionCall(const TargetInfo &TI, unsigned BuiltinID,
                                      CallExpr *TheCall);
-  void checkRVVTypeSupport(QualType Ty, SourceLocation Loc, ValueDecl *D);
+  void checkRVVTypeSupport(QualType Ty, SourceLocation Loc, Decl *D);
   bool CheckLoongArchBuiltinFunctionCall(const TargetInfo &TI,
                                          unsigned BuiltinID, CallExpr *TheCall);
   bool CheckWebAssemblyBuiltinFunctionCall(const TargetInfo &TI,

clang/lib/Sema/SemaChecking.cpp

@@ -5514,7 +5514,7 @@ bool Sema::CheckWebAssemblyBuiltinFunctionCall(const TargetInfo &TI,
   return false;
 }
 
-void Sema::checkRVVTypeSupport(QualType Ty, SourceLocation Loc, ValueDecl *D) {
+void Sema::checkRVVTypeSupport(QualType Ty, SourceLocation Loc, Decl *D) {
   const TargetInfo &TI = Context.getTargetInfo();
   // (ELEN, LMUL) pairs of (8, mf8), (16, mf4), (32, mf2), (64, m1) requires at
   // least zve64x

clang/lib/Sema/SemaDecl.cpp

@@ -8866,7 +8866,7 @@ void Sema::CheckVariableDeclarationType(VarDecl *NewVD) {
   }
 
   if (T->isRVVType())
-    checkRVVTypeSupport(T, NewVD->getLocation(), cast<ValueDecl>(CurContext));
+    checkRVVTypeSupport(T, NewVD->getLocation(), cast<Decl>(CurContext));
 }
 
 /// Perform semantic checking on a newly-created variable

clang/test/SemaOpenMP/riscv-vector-with-openmp.c

@@ -0,0 +1,12 @@
+// RUN: %clang_cc1 -triple riscv64 -target-feature +v -fsyntax-only \
+// RUN: -verify -fopenmp %s
+// REQUIRES: riscv-registered-target
+
+// expected-no-diagnostics
+
+void foo() {
+  #pragma omp parallel
+  {
+    __rvv_int32m1_t i32m1;
+  }
+}