aboutsummaryrefslogtreecommitdiffstats
path: root/gcc-4.9/gcc/testsuite/gcc.target/i386/attr-returns_twice-1.c
diff options
context:
space:
mode:
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.target/i386/attr-returns_twice-1.c')
-rw-r--r--gcc-4.9/gcc/testsuite/gcc.target/i386/attr-returns_twice-1.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.target/i386/attr-returns_twice-1.c b/gcc-4.9/gcc/testsuite/gcc.target/i386/attr-returns_twice-1.c
new file mode 100644
index 000000000..cd820d276
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.target/i386/attr-returns_twice-1.c
@@ -0,0 +1,23 @@
+/* { dg-do compile } */
+/* { dg-options "-Wclobbered" } */
+
+int newsetjmp(void) __attribute__((returns_twice));
+void g(int);
+
+int
+main (void)
+{
+ register int reg asm ("esi") = 1; /* { dg-warning "might be clobbered" "" } */
+
+ if (!newsetjmp ())
+ {
+ reg = 2;
+ g (reg);
+ }
+ else
+ {
+ g (reg);
+ }
+
+ return 0;
+}