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riscv-gcc-1
Commit 1baa375f by Richard Kenner Committed by Richard Kenner
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fold-const.c (negate_expr, [...]): New. 

	* 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.

From-SVN: r30673
parent a8b64d6c
Showing with 9 additions and 0 deletions
gcc/ChangeLog
Sat Nov 27 08:38:26 1999 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* 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.
1999-11-26 Bernd Schmidt <bernds@cygnus.co.uk>
* loop.c (try_copy_prop): Avoid GNU C extension.
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