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| author | Richard Sandiford <rsandifo@redhat.com> | 2001-09-11 08:38:14 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@gcc.gnu.org> | 2001-09-11 08:38:14 +0000 |
| commit | b1c4394d5db5b1c73458e8927dbcedc101874e04 (patch) | |
| tree | 94cc429898e48f189b4b7cd76937e1ec8975393b /gcc | |
| parent | a27082e02dd3ce463e39be2844dcc583f0e14f51 (diff) | |
| download | gcc-b1c4394d5db5b1c73458e8927dbcedc101874e04.zip gcc-b1c4394d5db5b1c73458e8927dbcedc101874e04.tar.gz gcc-b1c4394d5db5b1c73458e8927dbcedc101874e04.tar.bz2 | |
combine.c (simplify_shift_const): Treat shifts by the mode size as undefined.
* combine.c (simplify_shift_const): Treat shifts by the mode
size as undefined.
From-SVN: r45538
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/combine.c | 2 |
2 files changed, 6 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index f025864..f5f5afb 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2001-09-11 Richard Sandiford <rsandifo@redhat.com> + + * combine.c (simplify_shift_const): Treat shifts by the mode + size as undefined. + 2001-09-11 Neil Booth <neil@daikokuya.demon.co.uk> * cpphash.h (struct tokenrun): New. diff --git a/gcc/combine.c b/gcc/combine.c index 78bf6ce..1512ef0 100644 --- a/gcc/combine.c +++ b/gcc/combine.c @@ -8825,7 +8825,7 @@ simplify_shift_const (x, code, result_mode, varop, input_count) /* If we were given an invalid count, don't do anything except exactly what was requested. */ - if (input_count < 0 || input_count > (int) GET_MODE_BITSIZE (mode)) + if (input_count < 0 || input_count >= (int) GET_MODE_BITSIZE (mode)) { if (x) return x; |