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| author | Roger Sayle <roger@eyesopen.com> | 2003-07-18 00:28:14 +0000 |
|---|---|---|
| committer | Roger Sayle <sayle@gcc.gnu.org> | 2003-07-18 00:28:14 +0000 |
| commit | c715abddc7937701bde7e38f43338303b79d0e38 (patch) | |
| tree | e3a66c07d2f13df7bd1630e4d798fae57f6df5d9 | |
| parent | 3e4093b64f2e2623bba32e733e7e8f08efc700ac (diff) | |
| download | gcc-c715abddc7937701bde7e38f43338303b79d0e38.zip gcc-c715abddc7937701bde7e38f43338303b79d0e38.tar.gz gcc-c715abddc7937701bde7e38f43338303b79d0e38.tar.bz2 | |
cse.c (fold_rtx): Use swap_commutative_operands_p to determine whether to reorder the operands of...
* cse.c (fold_rtx): Use swap_commutative_operands_p to determine
whether to reorder the operands of a commutative binary operator.
From-SVN: r69534
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/cse.c | 9 |
2 files changed, 10 insertions, 4 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index dfff20c..3784190 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,10 @@ 2003-07-17 Roger Sayle <roger@eyesopen.com> + * cse.c (fold_rtx): Use swap_commutative_operands_p to determine + whether to reorder the operands of a commutative binary operator. + +2003-07-17 Roger Sayle <roger@eyesopen.com> + * fold-const.c (const_binop): Avoid performing the FP operation at compile-time, if either operand is NaN and we honor signaling NaNs, or if we're dividing by zero and either flag_trapping_math is set @@ -3783,10 +3783,11 @@ fold_rtx (rtx x, rtx insn) || code == LTGT || code == UNEQ || code == ORDERED || code == UNORDERED) { - if (must_swap || (const_arg0 - && (const_arg1 == 0 - || (GET_CODE (const_arg0) == CONST_INT - && GET_CODE (const_arg1) != CONST_INT)))) + if (must_swap + || swap_commutative_operands_p (const_arg0 ? const_arg0 + : XEXP (x, 0), + const_arg1 ? const_arg1 + : XEXP (x, 1))) { rtx tem = XEXP (x, 0); |