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| author | Jim Wilson <wilson@redhat.com> | 2002-09-19 23:39:34 +0000 |
|---|---|---|
| committer | Jim Wilson <wilson@gcc.gnu.org> | 2002-09-19 16:39:34 -0700 |
| commit | ff0765200c2e107d15c78b53cf2b215a6a7638c8 (patch) | |
| tree | c0941e6a8ac98aeec26ccf196ddf2c21706f911e | |
| parent | 2ee2d707a7dea2dad8874d10ee9f1844116c2fea (diff) | |
| download | gcc-ff0765200c2e107d15c78b53cf2b215a6a7638c8.zip gcc-ff0765200c2e107d15c78b53cf2b215a6a7638c8.tar.gz gcc-ff0765200c2e107d15c78b53cf2b215a6a7638c8.tar.bz2 | |
fix subreg optimization bug introduced 2002-05-25
fix subreg optimization bug introduced 2002-05-25
* combine.c (simplify_set): When optimizing a subreg src with a
cc0 dest, use GET_MODE (src) for mask instead of inner_mode.
From-SVN: r57323
| -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 9da276c..0b22646 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2002-09-19 Jim Wilson <wilson@redhat.com> + + * combine.c (simplify_set): When optimizing a subreg src with a + cc0 dest, use GET_MODE (src) for mask instead of inner_mode. + 2002-09-19 Dale Johannesen <dalej@apple.com> * combine.c (make_extraction): Don't create invalid subreg. diff --git a/gcc/combine.c b/gcc/combine.c index c72d81e..2313619 100644 --- a/gcc/combine.c +++ b/gcc/combine.c @@ -5229,7 +5229,7 @@ simplify_set (x) if (GET_MODE_BITSIZE (inner_mode) <= HOST_BITS_PER_WIDE_INT && (nonzero_bits (inner, inner_mode) < ((unsigned HOST_WIDE_INT) 1 - << (GET_MODE_BITSIZE (inner_mode) - 1)))) + << (GET_MODE_BITSIZE (GET_MODE (src)) - 1)))) { SUBST (SET_SRC (x), inner); src = SET_SRC (x); |