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| author | Richard Guenther <rguenther@suse.de> | 2009-04-24 19:10:55 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2009-04-24 19:10:55 +0000 |
| commit | 77a302647e6de91919e0e9c8c2383326715e4eee (patch) | |
| tree | 97a0566806e8184e997baf818e519cac788dd9bd /gcc/testsuite/gcc.dg | |
| parent | 2b6da65c33c24de56b95b42c5dd2c771c425ef7c (diff) | |
| download | gcc-77a302647e6de91919e0e9c8c2383326715e4eee.zip gcc-77a302647e6de91919e0e9c8c2383326715e4eee.tar.gz gcc-77a302647e6de91919e0e9c8c2383326715e4eee.tar.bz2 | |
tree-vrp.c (extract_range_from_binary_expr): Handle overflow from unsigned additions.
2009-04-24 Richard Guenther <rguenther@suse.de>
* tree-vrp.c (extract_range_from_binary_expr): Handle overflow
from unsigned additions.
* gcc.dg/tree-ssa/vrp48.c: New testcase.
From-SVN: r146742
Diffstat (limited to 'gcc/testsuite/gcc.dg')
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/vrp48.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/vrp48.c b/gcc/testsuite/gcc.dg/tree-ssa/vrp48.c new file mode 100644 index 0000000..a8cf8db --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/vrp48.c @@ -0,0 +1,20 @@ +extern void link_failure (void); + +static int __attribute__ ((noinline)) foo (int x) +{ + if (x >= 1) + if (x <= 10) + { + if (x < 1 || x > 10) + link_failure (); + x = x + 1; + } + return x; +} + +int main (void) +{ + int i = foo (0); + return 0; +} + |