git.osdn.net Git - android-x86/art.git/commit

author	David Brazdil <dbrazdil@google.com>
	Fri, 3 Apr 2015 15:02:44 +0000 (16:02 +0100)
committer	David Brazdil <dbrazdil@google.com>
	Wed, 15 Apr 2015 11:51:49 +0000 (12:51 +0100)
commit	66d126ea06ce3f507d86ca5f0d1f752170ac9be1
tree	8e247db17ef085b55725b21c64d292414fd00b32	tree \| snapshot
parent	9bb3e8e10d7d9230a323511094a9e260062a1473	commit \| diff

ART: Implement HBooleanNot instruction

Optimizations simplifying operations on boolean values (boolean
simplifier, instruction simplifier) can benefit from having a special
HInstruction for negating booleans in order to perform more transforms
and produce faster machine code.

This patch implements HBooleanNot as 'x xor 1', assuming that booleans
are 1-bit integers and allowing for a single-instruction negation on
all supported platforms.

Change-Id: I33a2649c1821255b18a86ca68ed16416063c739f

compiler/optimizing/boolean_simplifier.cc		diff \| blob \| history
compiler/optimizing/code_generator_arm.cc		diff \| blob \| history
compiler/optimizing/code_generator_arm64.cc		diff \| blob \| history
compiler/optimizing/code_generator_x86.cc		diff \| blob \| history
compiler/optimizing/code_generator_x86_64.cc		diff \| blob \| history
compiler/optimizing/nodes.h		diff \| blob \| history
test/468-checker-bool-simplifier-regression/expected.txt	[moved from test/468-bool-simplifier-regression/expected.txt with 100% similarity]	blob \| history
test/468-checker-bool-simplifier-regression/info.txt	[moved from test/468-bool-simplifier-regression/info.txt with 100% similarity]	blob \| history
test/468-checker-bool-simplifier-regression/smali/TestCase.smali	[moved from test/468-bool-simplifier-regression/smali/TestCase.smali with 100% similarity]	blob \| history
test/468-checker-bool-simplifier-regression/src/Main.java	[moved from test/468-bool-simplifier-regression/src/Main.java with 63% similarity]	diff \| blob \| history

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