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The modification only uses the unique part of the WebRtcSpl_MaxAbsValue function. Pass Spltest.MinMaxOperationTest conformance test on both ARMv7 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-a15 | | use C as the base on each | (1.2Ghz) | (1.7Ghz) | | CPU target | | | |----------------------------+-----------+------------| | Neon asm | 32% | 15% | | Neon intrinsics (GCC 4.6) | 36% | 37% | | Neon intrinsics (GCC 4.8) | 35% | 18% | BUG=3580 R=andrew@webrtc.org, jridges@masque.com Change-Id: Ia2f6822ec58774b401cc440b6751a97e540b5048 Review URL: https://webrtc-codereview.appspot.com/30109004 git-svn-id: http://webrtc.googlecode.com/svn/trunk@7803 4adac7df-926f-26a2-2b94-8c16560cd09d