Mercurial > hg > CbC > CbC_gcc

diff gcc/testsuite/gcc.dg/tree-ssa/negneg-4.c @ 131:84e7813d76e9

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
gcc-8.2
author mir3636
date Thu, 25 Oct 2018 07:37:49 +0900
parents
children
line wrap: on
line diff
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/gcc.dg/tree-ssa/negneg-4.c	Thu Oct 25 07:37:49 2018 +0900
@@ -0,0 +1,18 @@
+/* { dg-do run } */
+/* { dg-options "-O -fwrapv" } */
+
+#define DEF(num, T1, T2) T2 f##num(T1 x) { \
+    T1 y = -x; \
+    T2 z = (T2)y; \
+    return -z; \
+}
+DEF(0, int, long long)
+
+int main(){
+    volatile int a = -1 - __INT_MAX__;
+    volatile long long b = f0 (a);
+    volatile long long c = a;
+    volatile long long d = -c;
+    if (b != d)
+      __builtin_abort();
+}