diff options
| author | rth <rth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2004-12-27 03:31:49 +0000 |
|---|---|---|
| committer | rth <rth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2004-12-27 03:31:49 +0000 |
| commit | d55451893e475b21bf44de765ecba38736c8c33b (patch) | |
| tree | b5d173602e1a933bd93e68b8dd08cf5c3d5c9ec9 | |
| parent | e11e9ae3f6b8a724a71613817a2b075347e2da39 (diff) | |
| download | gcc-d55451893e475b21bf44de765ecba38736c8c33b.tar.gz | |
* simplify-rtx.c (simplify_relational_operation_1): Don't simplify
plus/minus across EQ for floating-point.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@92631 138bc75d-0d04-0410-961f-82ee72b054a4
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/simplify-rtx.c | 3 |
2 files changed, 7 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 2869df4370b..ef86e1338bf 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2004-12-26 Richard Henderson <rth@redhat.com> + + * simplify-rtx.c (simplify_relational_operation_1): Don't simplify + plus/minus across EQ for floating-point. + 2004-12-26 John David Anglin <dave.anglin@nrc-cnrc.gc.ca> PR target/17643 diff --git a/gcc/simplify-rtx.c b/gcc/simplify-rtx.c index 8d7cb3ff247..34b0ab8fe20 100644 --- a/gcc/simplify-rtx.c +++ b/gcc/simplify-rtx.c @@ -2807,7 +2807,8 @@ simplify_relational_operation_1 (enum rtx_code code, enum machine_mode mode, if ((code == EQ || code == NE) && (op0code == PLUS || op0code == MINUS) && CONSTANT_P (op1) - && CONSTANT_P (XEXP (op0, 1))) + && CONSTANT_P (XEXP (op0, 1)) + && (INTEGRAL_MODE_P (cmp_mode) || flag_unsafe_math_optimizations)) { rtx x = XEXP (op0, 0); rtx c = XEXP (op0, 1); |