diff options
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/fold-const.c | 8 |
2 files changed, 8 insertions, 5 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 959f77d..39d3f20 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2003-08-11 Roger Sayle <roger@eyesopen.com> + + * fold-const.c (fold): Optimize any associative floating point + operator with -funsafe-math-optimizations, not just MULT_EXPR. + 2003-08-11 Kaz Kojima <kkojima@gcc.gnu.org> * config/sh/lib1funcs.asm (__udivdi3): Add .type and .size diff --git a/gcc/fold-const.c b/gcc/fold-const.c index 9333c59..9db9f2e 100644 --- a/gcc/fold-const.c +++ b/gcc/fold-const.c @@ -5803,13 +5803,11 @@ fold (tree expr) associate: /* In most languages, can't associate operations on floats through parentheses. Rather than remember where the parentheses were, we - don't associate floats at all. It shouldn't matter much. However, - associating multiplications is only very slightly inaccurate, so do - that if -funsafe-math-optimizations is specified. */ + don't associate floats at all, unless the user has specified + -funsafe-math-optimizations. */ if (! wins - && (! FLOAT_TYPE_P (type) - || (flag_unsafe_math_optimizations && code == MULT_EXPR))) + && (! FLOAT_TYPE_P (type) || flag_unsafe_math_optimizations)) { tree var0, con0, lit0, minus_lit0; tree var1, con1, lit1, minus_lit1; |