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| author | Jakub Jelinek <jakub@redhat.com> | 2000-09-11 22:20:32 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2000-09-11 22:20:32 +0200 |
| commit | 6ff85fd82d366db03289da8f6b47e202eb4eee7b (patch) | |
| tree | 90cccff7b1e490cd93a4558a51852a30f3faaae4 /gcc/combine.c | |
| parent | 4102c782e32436af07666c512e1fbf2a3404cc18 (diff) | |
| download | gcc-6ff85fd82d366db03289da8f6b47e202eb4eee7b.zip gcc-6ff85fd82d366db03289da8f6b47e202eb4eee7b.tar.gz gcc-6ff85fd82d366db03289da8f6b47e202eb4eee7b.tar.bz2 | |
combine.c (simplify_if_then_else): Don't convert a == b ? b ...
* combine.c (simplify_if_then_else): Don't convert a == b ? b : a
to a if the comparison is floating mode and not -ffast-math.
* simplify-rtx.c (simplify_ternary_operation): Likewise.
From-SVN: r36326
Diffstat (limited to 'gcc/combine.c')
| -rw-r--r-- | gcc/combine.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/gcc/combine.c b/gcc/combine.c index 053b420..478aab2 100644 --- a/gcc/combine.c +++ b/gcc/combine.c @@ -4703,10 +4703,12 @@ simplify_if_then_else (x) /* Convert a == b ? b : a to "a". */ if (true_code == EQ && ! side_effects_p (cond) + && (! FLOAT_MODE_P (mode) || flag_fast_math) && rtx_equal_p (XEXP (cond, 0), false) && rtx_equal_p (XEXP (cond, 1), true)) return false; else if (true_code == NE && ! side_effects_p (cond) + && (! FLOAT_MODE_P (mode) || flag_fast_math) && rtx_equal_p (XEXP (cond, 0), true) && rtx_equal_p (XEXP (cond, 1), false)) return true; |