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| author | Mark Mendell <mark.p.mendell@intel.com> | 2015-03-13 13:47:53 -0400 |
|---|---|---|
| committer | Mark Mendell <mark.p.mendell@intel.com> | 2015-03-13 14:01:43 -0400 |
| commit | 3f6c7f61855172d3d9b7a9221baba76136088e7c (patch) | |
| tree | b61ab89a880ae74f44956425f5c9794d73ef029d /compiler/optimizing/locations.h | |
| parent | cc22e3946baf035c8732e9417ab132bfe663aa45 (diff) | |
| download | android_art-3f6c7f61855172d3d9b7a9221baba76136088e7c.tar.gz android_art-3f6c7f61855172d3d9b7a9221baba76136088e7c.tar.bz2 android_art-3f6c7f61855172d3d9b7a9221baba76136088e7c.zip | |
[optimizing] Improve x86, x86_64 code
Tweak the generated code to allow more use of constants and other small
changes
- Use test vs. compare to 0
- EmitMove of 0.0 should use xorps
- VisitCompare kPrimLong can use constants
- cmp/add/sub/mul on x86_64 can use constants if in int32_t range
- long bit operations on x86 examine long constant high/low to optimize
- Use 3 operand imulq if constant is in int32_t range
Change-Id: I2dd4010fdffa129fe00905b0020590fe95f3f926
Signed-off-by: Mark Mendell <mark.p.mendell@intel.com>
Diffstat (limited to 'compiler/optimizing/locations.h')
| -rw-r--r-- | compiler/optimizing/locations.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/compiler/optimizing/locations.h b/compiler/optimizing/locations.h index 566c0daf1e..de876be9ab 100644 --- a/compiler/optimizing/locations.h +++ b/compiler/optimizing/locations.h @@ -345,6 +345,7 @@ class Location : public ValueObject { } static Location RegisterOrConstant(HInstruction* instruction); + static Location RegisterOrInt32LongConstant(HInstruction* instruction); static Location ByteRegisterOrConstant(int reg, HInstruction* instruction); // The location of the first input to the instruction will be |