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combine.c (apply_distributive_law): Enable "distributive" floating point optimizations with -funsafe-math-optimizations.

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* combine.c (apply_distributive_law): Enable "distributive" floating
	point optimizations with -funsafe-math-optimizations.

From-SVN: r72334
This commit is contained in:
Roger Sayle 2003-10-11 13:53:39 +00:00 committed by Roger Sayle
parent 379f1861d3
commit 2981fafefc
2 changed files with 12 additions and 6 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2003-10-11 Roger Sayle <roger@eyesopen.com>
* combine.c (apply_distributive_law): Enable "distributive" floating
point optimizations with -funsafe-math-optimizations.
2003-10-11 Andrew Pinski <pinskia@physics.uc.edu>
* genmodes.c (emit_mode_mask) Change MASK to MODE_MASK.

13
gcc/combine.c
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@ -7791,14 +7791,14 @@ static rtx
apply_distributive_law (rtx x)
{
enum rtx_code code = GET_CODE (x);
enum rtx_code inner_code;
rtx lhs, rhs, other;
rtx tem;
enum rtx_code inner_code;
/* Distributivity is not true for floating point.
It can change the value. So don't do it.
-- rms and moshier@world.std.com. */
if (FLOAT_MODE_P (GET_MODE (x)))
/* Distributivity is not true for floating point as it can change the
value. So we don't do it unless -funsafe-math-optimizations. */
if (FLOAT_MODE_P (GET_MODE (x))
&& ! flag_unsafe_math_optimizations)
return x;
/* The outer operation can only be one of the following: */
@ -7806,7 +7806,8 @@ apply_distributive_law (rtx x)
&& code != PLUS && code != MINUS)
return x;
lhs = XEXP (x, 0), rhs = XEXP (x, 1);
lhs = XEXP (x, 0);
rhs = XEXP (x, 1);
/* If either operand is a primitive we can't do anything, so get out
fast. */