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| author | Richard Guenther <rguenther@suse.de> | 2012-01-03 08:59:21 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2012-01-03 08:59:21 +0000 |
| commit | 8b3c295192e3886940be529ebd380b093d77fdef (patch) | |
| tree | cce39e915f0c8795b8736c761af35b64f69fe9a8 /gcc/testsuite/gcc.dg | |
| parent | 96fda42cb42f8aa502b306f2626227d5d2615919 (diff) | |
| download | gcc-8b3c295192e3886940be529ebd380b093d77fdef.zip gcc-8b3c295192e3886940be529ebd380b093d77fdef.tar.gz gcc-8b3c295192e3886940be529ebd380b093d77fdef.tar.bz2 | |
re PR c/51730 (autoconf 2.60 through 2.67 stdbool.h check fails with GCC 4.7)
2012-01-03 Richard Guenther <rguenther@suse.de>
PR middle-end/51730
* fold-const.c (fold_comparison): Properly canonicalize
tree offset and HOST_WIDE_INT bit position.
* gcc.dg/fold-compare-6.c: New testcase.
From-SVN: r182830
Diffstat (limited to 'gcc/testsuite/gcc.dg')
| -rw-r--r-- | gcc/testsuite/gcc.dg/fold-compare-6.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/fold-compare-6.c b/gcc/testsuite/gcc.dg/fold-compare-6.c new file mode 100644 index 0000000..7ddf6b4 --- /dev/null +++ b/gcc/testsuite/gcc.dg/fold-compare-6.c @@ -0,0 +1,12 @@ +/* { dg-do compile } */ +/* { dg-options "-fdump-tree-original" } */ + +char digs[] = "0123456789"; +int foo (void) +{ + int xlcbug = 1 / (&(digs + 5)[-2 + (_Bool) 1] == &digs[4] ? 1 : -1); + return xlcbug; +} + +/* { dg-final { scan-tree-dump "xlcbug = 1;" "original" } } */ +/* { dg-final { cleanup-tree-dump "original" } } */ |