aboutsummaryrefslogtreecommitdiffstats
path: root/gcc-4.9/gcc/testsuite/gcc.c-torture/execute/20030613-1.c
diff options
context:
space:
mode:
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.c-torture/execute/20030613-1.c')
-rw-r--r--gcc-4.9/gcc/testsuite/gcc.c-torture/execute/20030613-1.c62
1 files changed, 62 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.c-torture/execute/20030613-1.c b/gcc-4.9/gcc/testsuite/gcc.c-torture/execute/20030613-1.c
new file mode 100644
index 000000000..cb1623d96
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.c-torture/execute/20030613-1.c
@@ -0,0 +1,62 @@
+/* PR optimization/10955 */
+/* Originator: <heinrich.brand@fujitsu-siemens.com> */
+
+/* This used to fail on SPARC32 at -O3 because the loop unroller
+ wrongly thought it could eliminate a pseudo in a loop, while
+ the pseudo was used outside the loop. */
+
+extern void abort(void);
+
+#define COMPLEX struct CS
+
+COMPLEX {
+ long x;
+ long y;
+};
+
+
+static COMPLEX CCID (COMPLEX x)
+{
+ COMPLEX a;
+
+ a.x = x.x;
+ a.y = x.y;
+
+ return a;
+}
+
+
+static COMPLEX CPOW (COMPLEX x, int y)
+{
+ COMPLEX a;
+ a = x;
+
+ while (--y > 0)
+ a=CCID(a);
+
+ return a;
+}
+
+
+static int c5p (COMPLEX x)
+{
+ COMPLEX a,b;
+ a = CPOW (x, 2);
+ b = CCID( CPOW(a,2) );
+
+ return (b.x == b.y);
+}
+
+
+int main (void)
+{
+ COMPLEX x;
+
+ x.x = -7;
+ x.y = -7;
+
+ if (!c5p(x))
+ abort();
+
+ return 0;
+}