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* fold-const.c (negate_expr, associate_trees, extract_muldiv): New.
authorkenner <kenner@138bc75d-0d04-0410-961f-82ee72b054a4>
Sat, 27 Nov 1999 13:50:13 +0000 (13:50 +0000)
committerkenner <kenner@138bc75d-0d04-0410-961f-82ee72b054a4>
Sat, 27 Nov 1999 13:50:13 +0000 (13:50 +0000)
commit23ec2d5e273f9f93bfa360cb99fc57619fbd1be2
tree368881c3a9ecac0c1c9c28d7d35bd0a9485737fetree | snapshot
parenta0e65537b70e4ed56311f4a7543927a8b4a9c1a9commit | diff
* fold-const.c (negate_expr, associate_trees, extract_muldiv): New.
(split_tree): Completely rework to make more general.
(make_range, fold): Call negate_expr.
(fold, case NEGATE_EXPR): Simplify -(a-b) is -ffast-math.
(fold, associate): Call new split_tree and associate_trees.
(fold, case MULT_EXPR, case *_{DIV,MOD}_EXPR): Call extract_muldiv.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@30673 138bc75d-0d04-0410-961f-82ee72b054a4
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