From: Alexey Bataev <a.bataev@hotmail.com>
Date: Wed, 12 Aug 2015 07:10:54 +0000 (+0000)
Subject: [OPENMP] Fix for http://llvm.org/PR24430: clang hangs on invalid input with openmp... 
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=5ba21757c987b056360c8ea9fa6c30c148404d17;p=clang

[OPENMP] Fix for http://llvm.org/PR24430: clang hangs on invalid input with openmp directive

Add parsing of openmp directives inside structs/unions in C mode.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@244719 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Parse/ParseDecl.cpp b/lib/Parse/ParseDecl.cpp
index 40687d8f27..debbd50d66 100644
--- a/lib/Parse/ParseDecl.cpp
+++ b/lib/Parse/ParseDecl.cpp
@@ -3615,6 +3615,14 @@ void Parser::ParseStructUnionBody(SourceLocation RecordLoc,
       continue;
     }
 
+    if (Tok.is(tok::annot_pragma_openmp)) {
+      // Result can be ignored, because it must be always empty.
+      auto Res = ParseOpenMPDeclarativeDirective();
+      assert(!Res);
+      // Silence possible warnings.
+      (void)Res;
+      continue;
+    }
     if (!Tok.is(tok::at)) {
       auto CFieldCallback = [&](ParsingFieldDeclarator &FD) {
         // Install the declarator into the current TagDecl.
diff --git a/test/OpenMP/openmp_common.c b/test/OpenMP/openmp_common.c
index 3765f4c5dc..ed55796b33 100644
--- a/test/OpenMP/openmp_common.c
+++ b/test/OpenMP/openmp_common.c
@@ -7,3 +7,8 @@ void foo() {
 #pragma omp // expected-error {{expected an OpenMP directive}}
 #pragma omp unknown_directive // expected-error {{expected an OpenMP directive}}
 }
+
+typedef struct S {
+#pragma omp parallel for private(j) schedule(static) if (tree1->totleaf > 1024) // expected-error {{unexpected OpenMP directive '#pragma omp parallel for'}}
+} St;
+