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diff gcc/testsuite/gcc.dg/pr68217.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/pr68217.c	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,13 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -fdisable-tree-evrp -fdump-tree-vrp1" } */
+
+int foo (void)
+{
+    volatile int a = -1;
+    long long b = (1LL << (sizeof (b) * 8 - 1)); // LLONG_MIN
+    long long x = (a & b); // x == 0x8000000000000000
+    if (x < 1LL) { ; } else { __builtin_abort(); }
+    return 0;
+}
+
+/* { dg-final { scan-tree-dump "\\\[-INF, 0\\\]" "vrp1" } } */