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fold-const.c (tree_swap_operands_p): Put all constants last...

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2014-08-15  Richard Biener  <rguenther@suse.de>

	* fold-const.c (tree_swap_operands_p): Put all constants
	last, also strip sign-changing NOPs when considering further
	canonicalization.  Canonicalize also when optimizing for size.

From-SVN: r214013
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Richard Biener 2014-08-15 11:42:01 +00:00 committed by Richard Biener
parent 5f75acf4a4
commit 09ad9c71aa
2 changed files with 10 additions and 22 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2014-08-15 Richard Biener <rguenther@suse.de>
* fold-const.c (tree_swap_operands_p): Put all constants
last, also strip sign-changing NOPs when considering further
canonicalization. Canonicalize also when optimizing for size.
2014-08-15 Kyrylo Tkachov <kyrylo.tkachov@arm.com>
* config/aarch64/aarch64.c (aarch64_expand_mov_immediate): Move

26
gcc/fold-const.c
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@ -6642,37 +6642,19 @@ reorder_operands_p (const_tree arg0, const_tree arg1)
bool
tree_swap_operands_p (const_tree arg0, const_tree arg1, bool reorder)
{
STRIP_SIGN_NOPS (arg0);
STRIP_SIGN_NOPS (arg1);
if (TREE_CODE (arg1) == INTEGER_CST)
if (CONSTANT_CLASS_P (arg1))
return 0;
if (TREE_CODE (arg0) == INTEGER_CST)
if (CONSTANT_CLASS_P (arg0))
return 1;
if (TREE_CODE (arg1) == REAL_CST)
return 0;
if (TREE_CODE (arg0) == REAL_CST)
return 1;
if (TREE_CODE (arg1) == FIXED_CST)
return 0;
if (TREE_CODE (arg0) == FIXED_CST)
return 1;
if (TREE_CODE (arg1) == COMPLEX_CST)
return 0;
if (TREE_CODE (arg0) == COMPLEX_CST)
return 1;
STRIP_NOPS (arg0);
STRIP_NOPS (arg1);
if (TREE_CONSTANT (arg1))
return 0;
if (TREE_CONSTANT (arg0))
return 1;
if (optimize_function_for_size_p (cfun))
return 0;
if (reorder && flag_evaluation_order
&& (TREE_SIDE_EFFECTS (arg0) || TREE_SIDE_EFFECTS (arg1)))
return 0;