diff options
| author | sayle <sayle@138bc75d-0d04-0410-961f-82ee72b054a4> | 2004-09-26 14:55:37 +0000 |
|---|---|---|
| committer | sayle <sayle@138bc75d-0d04-0410-961f-82ee72b054a4> | 2004-09-26 14:55:37 +0000 |
| commit | 011ea7b8e3578f64304596a5bdf4ddba44534e86 (patch) | |
| tree | db4293301b71d4308679247cdc600896820a00f2 | |
| parent | a2d7a3ff6603a97188b69e3d64058f2093c43f71 (diff) | |
| download | ppe42-gcc-011ea7b8e3578f64304596a5bdf4ddba44534e86.tar.gz ppe42-gcc-011ea7b8e3578f64304596a5bdf4ddba44534e86.zip | |
PR middle-end/17151
* combine.c (force_to_mode): Remove dubious early return test that
inhibits further optimization.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@88129 138bc75d-0d04-0410-961f-82ee72b054a4
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/combine.c | 5 |
2 files changed, 6 insertions, 5 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 700cabf84b2..af865b18477 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2004-09-26 Roger Sayle <roger@eyesopen.com> + + PR middle-end/17151 + * combine.c (force_to_mode): Remove dubious early return test that + inhibits further optimization. + 2004-09-26 Kazu Hirata <kazu@cs.umass.edu> * profile.c: Fix a comment typo. diff --git a/gcc/combine.c b/gcc/combine.c index f0b5b0698dd..ad5ec6483a3 100644 --- a/gcc/combine.c +++ b/gcc/combine.c @@ -6904,11 +6904,6 @@ force_to_mode (rtx x, enum machine_mode mode, unsigned HOST_WIDE_INT mask, && (GET_MODE_MASK (GET_MODE (x)) & ~mask) == 0) return gen_lowpart (mode, x); - /* If we aren't changing the mode, X is not a SUBREG, and all zero bits in - MASK are already known to be zero in X, we need not do anything. */ - if (GET_MODE (x) == mode && code != SUBREG && (~mask & nonzero) == 0) - return x; - switch (code) { case CLOBBER: |
