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| author | Toon Moene <toon@moene.indiv.nluug.nl> | 2001-07-18 07:26:38 +0200 |
|---|---|---|
| committer | Toon Moene <toon@gcc.gnu.org> | 2001-07-18 05:26:38 +0000 |
| commit | 493efd37cdfae36cc289d78ae81ce72d52fc4510 (patch) | |
| tree | 52785302a0f2c7c6c298e0451dbc15c422e5d962 /gcc/combine.c | |
| parent | a7c07f1ef066dd8817eb2da0c66f60aef5fb3e84 (diff) | |
| download | gcc-493efd37cdfae36cc289d78ae81ce72d52fc4510.zip gcc-493efd37cdfae36cc289d78ae81ce72d52fc4510.tar.gz gcc-493efd37cdfae36cc289d78ae81ce72d52fc4510.tar.bz2 | |
combine.c (combine_simplify_rtx): DIV can be treated associatively for floats if...
2001-07-18 Toon Moene <toon@moene.indiv.nluug.nl>
* combine.c (combine_simplify_rtx): DIV can be treated
associatively for floats if unsafe math optimisations are enabled.
From-SVN: r44097
Diffstat (limited to 'gcc/combine.c')
| -rw-r--r-- | gcc/combine.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/gcc/combine.c b/gcc/combine.c index f8394e6..b22dd9b 100644 --- a/gcc/combine.c +++ b/gcc/combine.c @@ -3722,10 +3722,10 @@ combine_simplify_rtx (x, op0_mode, last, in_dest) /* If CODE is an associative operation not otherwise handled, see if we can associate some operands. This can win if they are constants or if they are logically related (i.e. (a & b) & a). */ - if ((code == PLUS || code == MINUS - || code == MULT || code == AND || code == IOR || code == XOR + if ((code == PLUS || code == MINUS || code == MULT || code == DIV + || code == AND || code == IOR || code == XOR || code == SMAX || code == SMIN || code == UMAX || code == UMIN) - && (INTEGRAL_MODE_P (mode) + && ((INTEGRAL_MODE_P (mode) && code != DIV) || (flag_unsafe_math_optimizations && FLOAT_MODE_P (mode)))) { if (GET_CODE (XEXP (x, 0)) == code) @@ -3745,7 +3745,6 @@ combine_simplify_rtx (x, op0_mode, last, in_dest) } inner = simplify_binary_operation (code == MINUS ? PLUS : code == DIV ? MULT - : code == UDIV ? MULT : code, mode, inner_op0, inner_op1); |