diff options
| -rw-r--r-- | clang/lib/Sema/SemaLookup.cpp | 8 | ||||
| -rw-r--r-- | clang/test/Sema/implicit-builtin-decl.c | 9 |
2 files changed, 9 insertions, 8 deletions
diff --git a/clang/lib/Sema/SemaLookup.cpp b/clang/lib/Sema/SemaLookup.cpp index 0f5a78b10a1..01220769e32 100644 --- a/clang/lib/Sema/SemaLookup.cpp +++ b/clang/lib/Sema/SemaLookup.cpp @@ -545,14 +545,6 @@ static bool LookupBuiltin(Sema &S, LookupResult &R) { R.addDecl(D); return true; } - - if (R.isForRedeclaration()) { - // If we're redeclaring this function anyway, forget that - // this was a builtin at all. - S.Context.BuiltinInfo.ForgetBuiltin(BuiltinID, S.Context.Idents); - } - - return false; } } } diff --git a/clang/test/Sema/implicit-builtin-decl.c b/clang/test/Sema/implicit-builtin-decl.c index d7ec16953a0..2a7a7ca27b6 100644 --- a/clang/test/Sema/implicit-builtin-decl.c +++ b/clang/test/Sema/implicit-builtin-decl.c @@ -1,4 +1,6 @@ // RUN: %clang_cc1 -fsyntax-only -verify %s +// RUN: not %clang_cc1 -fsyntax-only -ast-dump %s | FileCheck %s + void f() { int *ptr = malloc(sizeof(int) * 10); // expected-warning{{implicitly declaring library function 'malloc' with type}} \ // expected-note{{please include the header <stdlib.h> or explicitly provide a declaration for 'malloc'}} \ @@ -57,3 +59,10 @@ void snprintf() { } void longjmp(); // expected-warning{{declaration of built-in function 'longjmp' requires inclusion of the header <setjmp.h>}} extern float fmaxf(float, float); + +struct __jmp_buf_tag {}; +void sigsetjmp(struct __jmp_buf_tag[1], int); // expected-warning{{declaration of built-in function 'sigsetjmp' requires inclusion of the header <setjmp.h>}} + +// CHECK: FunctionDecl {{.*}} <line:[[@LINE-2]]:1, col:44> sigsetjmp ' +// CHECK-NOT: FunctionDecl +// CHECK: ReturnsTwiceAttr {{.*}} <{{.*}}> Implicit |
