From: Chris Lattner <sabre@nondot.org>
Date: Sat, 26 Sep 2009 21:16:00 +0000 (+0000)
Subject: builtin_trap should be noreturn, this fixes PR5062, patch by
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=50dd255e5ad05f0d44bb92f358ff3f541a3d7a4b;p=clang

builtin_trap should be noreturn, this fixes PR5062, patch by
Roman Divacky!


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@82876 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/include/clang/Basic/Builtins.def b/include/clang/Basic/Builtins.def
index 502bbd24d9..5dcd23f6a2 100644
--- a/include/clang/Basic/Builtins.def
+++ b/include/clang/Basic/Builtins.def
@@ -271,7 +271,7 @@ BUILTIN(__builtin___vprintf_chk, "iicC*a", "FP:1:")
 
 BUILTIN(__builtin_expect, "iii"   , "nc")
 BUILTIN(__builtin_prefetch, "vvC*.", "nc")
-BUILTIN(__builtin_trap, "v", "n")
+BUILTIN(__builtin_trap, "v", "nr")
 BUILTIN(__builtin_unreachable, "v", "nr")
 
 BUILTIN(__builtin_shufflevector, "v."   , "nc")
diff --git a/test/Sema/builtins.c b/test/Sema/builtins.c
index 04a56bd5ed..912a6b385c 100644
--- a/test/Sema/builtins.c
+++ b/test/Sema/builtins.c
@@ -62,3 +62,8 @@ void test11(int X) {
   __builtin_eh_return_data_regno(X);  // expected-error {{not an integer constant expression}}
 }
 
+// PR5062
+void test12(void) __attribute__((__noreturn__));
+void test12(void) {
+  __builtin_trap();  // no warning because trap is noreturn.
+}