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authorBen Cheng <bccheng@google.com>2014-03-25 22:37:19 -0700
committerBen Cheng <bccheng@google.com>2014-03-25 22:37:19 -0700
commit1bc5aee63eb72b341f506ad058502cd0361f0d10 (patch)
treec607e8252f3405424ff15bc2d00aa38dadbb2518 /gcc-4.9/gcc/testsuite/gcc.dg/builtin-unreachable-1.c
parent283a0bf58fcf333c58a2a92c3ebbc41fb9eb1fdb (diff)
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Initial checkin of GCC 4.9.0 from trunk (r208799).
Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.dg/builtin-unreachable-1.c')
-rw-r--r--gcc-4.9/gcc/testsuite/gcc.dg/builtin-unreachable-1.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/builtin-unreachable-1.c b/gcc-4.9/gcc/testsuite/gcc.dg/builtin-unreachable-1.c
new file mode 100644
index 000000000..165da3f94
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.dg/builtin-unreachable-1.c
@@ -0,0 +1,17 @@
+/* Check that __builtin_unreachable() prevents the 'control reaches
+ end of non-void function' diagnostic. */
+/* { dg-do compile } */
+/* { dg-options "-O2 -Wreturn-type" } */
+int
+f(int a, int b)
+{
+ if (a)
+ {
+ return b;
+ }
+ else
+ {
+ asm ("bug");
+ __builtin_unreachable();
+ }
+}