4ffc7341ca
The modification only uses the unique part of the ResetAdaptiveChannel function. Pass byte to byte conformance test both on ARM32 and ARM64, and the single function performance is similar with original assembly version on different platforms. If not specified, the code is compiled by GCC 4.6. The result is the "X version / C version" ratio, and the less is better. | run 100k times | cortex-a7 | cortex-a9 | cortex-a15 | | use C as the base on each | (1.2Ghz) | (1.0Ghz) | (1.7Ghz) | | CPU target | | | | |----------------------------+-----------+-----------+------------| | Neon asm | 15% | 30% | 12% | | Neon inline | 21% | 30% | 12% | | Neon intrinsics (GCC 4.6) | 19% | 32% | 12% | | Neon intrinsics (GCC 4.8) | 20% | 32% | 12% | | Neon intrinsics (LLVM 3.4) | 19% | 30% | 12% | BUG=3580 R=andrew@webrtc.org Review URL: https://webrtc-codereview.appspot.com/29019004 Patch from Zhongwei Yao <zhongwei.yao@arm.com>. git-svn-id: http://webrtc.googlecode.com/svn/trunk@7672 4adac7df-926f-26a2-2b94-8c16560cd09d