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| author | Richard Henderson <rth@redhat.com> | 2004-12-26 19:31:49 -0800 |
|---|---|---|
| committer | Richard Henderson <rth@gcc.gnu.org> | 2004-12-26 19:31:49 -0800 |
| commit | 551a3297bb7f0468b5ec488641313286ea3e703f (patch) | |
| tree | b5d173602e1a933bd93e68b8dd08cf5c3d5c9ec9 | |
| parent | 73096ba97f7b04b4ad454b2ad8a5307b578846b5 (diff) | |
| download | gcc-551a3297bb7f0468b5ec488641313286ea3e703f.zip gcc-551a3297bb7f0468b5ec488641313286ea3e703f.tar.gz gcc-551a3297bb7f0468b5ec488641313286ea3e703f.tar.bz2 | |
simplify-rtx.c (simplify_relational_operation_1): Don't simplify plus/minus across EQ for floating-point.
* simplify-rtx.c (simplify_relational_operation_1): Don't simplify
plus/minus across EQ for floating-point.
From-SVN: r92631
| -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 2869df4..ef86e13 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 8d7cb3f..34b0ab8 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); |