git.libre-soc.org Git - mesa.git/commit

author	Matt Turner <mattst88@gmail.com>
	Wed, 28 Jan 2015 03:18:46 +0000 (19:18 -0800)
committer	Matt Turner <mattst88@gmail.com>
	Tue, 31 Mar 2015 21:14:36 +0000 (14:14 -0700)
commit	47c4b3854076adfe5a27b537f36262ac4ec4530d
tree	2d248313643c5df81aaf756757b046fc1d46a73b	tree
parent	438c1c0080a00b073706a8708c5fd79dc42a7a15	commit \| diff

i965/fs: Allow CSE to handle MULs with negated arguments.

mul x, -y is equivalent to mul -x, y; and mul x, y is the negation of
mul x, -y.

With NIR:
total instructions in shared programs: 6167779 -> 6161193 (-0.11%)
instructions in affected programs:     983511 -> 976925 (-0.67%)
helped:                                4106
HURT:                                  16
GAINED:                                18
LOST:                                  7

Without NIR:
total instructions in shared programs: 6192323 -> 6185299 (-0.11%)
instructions in affected programs:     987875 -> 980851 (-0.71%)
helped:                                4146
HURT:                                  16
GAINED:                                16
LOST:                                  0