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nrsh1 is written before tmp321 is read, so needs to be earlyclobber

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Otherwise, the compiler is allowed to put them in the same register
under the assumption that all inputs are read before any
(non-earlyclobber) output is written, which in this case would result
in nrsh2 being corrupted.

BUG=3439
R=aluebs@webrtc.org, ljubomir.papuga@gmail.com

Review URL: https://webrtc-codereview.appspot.com/16089004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@6700 4adac7df-926f-26a2-2b94-8c16560cd09d
This commit is contained in:
kwiberg@webrtc.org 2014-07-16 08:26:48 +00:00
parent 38ce7d03d8
commit e8ea33ccb1
1 changed files with 1 additions and 1 deletions
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webrtc/modules/audio_processing/aecm/aecm_core_mips.c
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@ -1485,7 +1485,7 @@ static void ComfortNoise(AecmCore_t* aecm,
"mul %[tmp321], %[tmp321], %[tmp161] \n\t"
"sra %[nrsh1], %[tmp32], 14 \n\t"
"sra %[nrsh2], %[tmp321], 14 \n\t"
: [nrsh1] "=r" (nrsh1), [nrsh2] "=r" (nrsh2)
: [nrsh1] "=&r" (nrsh1), [nrsh2] "=r" (nrsh2)
: [tmp16] "r" (tmp16), [tmp161] "r" (tmp161), [tmp32] "r" (tmp32),
[tmp321] "r" (tmp321)
: "memory", "hi", "lo"