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diff gcc/testsuite/gcc.dg/ftrapv-3.c @ 111:04ced10e8804

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gcc 7
author kono
date Fri, 27 Oct 2017 22:46:09 +0900
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/gcc.dg/ftrapv-3.c	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,16 @@
+/* { dg-do run } */
+/* { dg-options "-ftrapv" } */
+
+extern void abort (void);
+unsigned long
+foo (long i, long j)
+{
+  /* We may not fold this to (unsigned long)(i * j).  */
+  return -(unsigned long)(i * -j);
+}
+int main()
+{
+  if (foo (-__LONG_MAX__ - 1, -1) != -(unsigned long)(-__LONG_MAX__ - 1))
+    abort ();
+  return 0;
+}