diff options
| author | Paolo Bonzini <bonzini@gcc.gnu.org> | 2004-08-17 07:40:22 +0000 |
|---|---|---|
| committer | Paolo Bonzini <bonzini@gcc.gnu.org> | 2004-08-17 07:40:22 +0000 |
| commit | 62fc1d7d18d061f34e73957b3e87511fdc5de3ba (patch) | |
| tree | 33105d56679d89ea93b190dc2049f0985565fe47 /gcc/fold-const.c | |
| parent | 7c27e184c87d2b245f80287be1d28f686b68519e (diff) | |
| download | gcc-62fc1d7d18d061f34e73957b3e87511fdc5de3ba.zip gcc-62fc1d7d18d061f34e73957b3e87511fdc5de3ba.tar.gz gcc-62fc1d7d18d061f34e73957b3e87511fdc5de3ba.tar.bz2 | |
re PR middle-end/17036 (ICE: (A >> N) & 1 ? (1 << N) : 0 where A of type unsigned int)
gcc/ChangeLog:
2004-08-17 Paolo Bonzini <bonzini@gnu.org>
PR middle-end/17036
* fold-const.c (fold): Check for integer operand when
folding (A >> N) & 1 ? (1 << N) : 0. Fix from Andrew
Pinski <pinskia@physics.uc.edu>.
gcc/testsuite/ChangeLog:
2004-08-17 Paolo Bonzini <bonzini@gnu.org>
* gcc.dg/pr17036-1.c: New test.
From-SVN: r86112
Diffstat (limited to 'gcc/fold-const.c')
| -rw-r--r-- | gcc/fold-const.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/gcc/fold-const.c b/gcc/fold-const.c index c404613..319e455 100644 --- a/gcc/fold-const.c +++ b/gcc/fold-const.c @@ -8859,6 +8859,7 @@ fold (tree expr) tree tem = TREE_OPERAND (arg0, 0); STRIP_NOPS (tem); if (TREE_CODE (tem) == RSHIFT_EXPR + && TREE_CODE (TREE_OPERAND (tem, 1)) == INTEGER_CST && (unsigned HOST_WIDE_INT) tree_log2 (arg1) == TREE_INT_CST_LOW (TREE_OPERAND (tem, 1))) return fold (build2 (BIT_AND_EXPR, type, |