Testcase for PR rtl-optimization/68381

	PR rtl-optimization/68381
	* gcc.c-torture/execute/pr68381.c: New test.

From-SVN: r230809

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 47f7ea55c21426d3343959c2776e4c37f9c31c39..9f327b38333bda6b0f99f82db82396e623d32007 100644 (file)
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2015-11-24  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
+
+       PR rtl-optimization/68381
+       * gcc.c-torture/execute/pr68381.c: New test.
+
 2015-11-24  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 
        * gcc.target/aarch64/cmpimm_branch_1.c: New test.

diff --git a/gcc/testsuite/gcc.c-torture/execute/pr68381.c b/gcc/testsuite/gcc.c-torture/execute/pr68381.c
new file mode 100644 (file)
index 0000000..cb6abcb
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/pr68381.c
@@ -0,0 +1,22 @@
+/* { dg-options "-O -fexpensive-optimizations -fno-tree-bit-ccp" } */
+
+__attribute__ ((noinline, noclone))
+int
+foo (unsigned short x, unsigned short y)
+{
+  int r;
+  if (__builtin_mul_overflow (x, y, &r))
+    __builtin_abort ();
+  return r;
+}
+
+int
+main (void)
+{
+  int x = 1;
+  int y = 2;
+  if (foo (x, y) != x * y)
+    __builtin_abort ();
+  return 0;
+}
+