[OPENMP 4.0] Parsing/sema analysis for 'simdlen' clause in 'declare simd'
construct.
OpenMP 4.0 defines '#pragma omp declare simd' construct that may have
associated 'simdlen' clause with constant positive expression as an
argument:
simdlen(<const_expr>)
Patch adds parsin and semantic analysis for simdlen clause.
llvm-svn: 265668
diff --git a/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp b/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp
index 2d87b04..c60a17a 100644
--- a/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp
+++ b/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp
@@ -235,6 +235,22 @@
Attr.getSpellingListIndex(), /*InInstantiation=*/true);
}
+/// Instantiation of 'declare simd' attribute and its arguments.
+static void instantiateOMPDeclareSimdDeclAttr(
+ Sema &S, const MultiLevelTemplateArgumentList &TemplateArgs,
+ const OMPDeclareSimdDeclAttr &Attr, Decl *New) {
+ ExprResult Simdlen;
+ if (auto *E = Attr.getSimdlen()) {
+ Simdlen = S.SubstExpr(E, TemplateArgs);
+ if (Simdlen.isInvalid())
+ return;
+ }
+
+ (void)S.ActOnOpenMPDeclareSimdDirective(S.ConvertDeclToDeclGroup(New),
+ Attr.getBranchState(), Simdlen.get(),
+ Attr.getRange());
+}
+
void Sema::InstantiateAttrs(const MultiLevelTemplateArgumentList &TemplateArgs,
const Decl *Tmpl, Decl *New,
LateInstantiatedAttrVec *LateAttrs,
@@ -278,6 +294,11 @@
continue;
}
+ if (const auto *OMPAttr = dyn_cast<OMPDeclareSimdDeclAttr>(TmplAttr)) {
+ instantiateOMPDeclareSimdDeclAttr(*this, TemplateArgs, *OMPAttr, New);
+ continue;
+ }
+
// Existing DLL attribute on the instantiation takes precedence.
if (TmplAttr->getKind() == attr::DLLExport ||
TmplAttr->getKind() == attr::DLLImport) {