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Optimisation changes in saturation functions am: 0708a5228b am: d3460df4ba am: 7fc8b0bc7b

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Change-Id: I31efdc8d5a2a5b2b8c7a5f638bcea75d9a9358ca
This commit is contained in:
Sushanth Patil 2020-04-22 16:43:06 +00:00 • committed by Automerger Merge Worker
commit 45fb936779
1 changed files with 4 additions and 10 deletions
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14
decoder/ixheaacd_basic_ops32.h
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@ -180,11 +180,8 @@ static PLATFORM_INLINE WORD32 ixheaacd_add32_sat(WORD32 a, WORD32 b) {
sum = (WORD64)a + (WORD64)b;
if ((((WORD32)a ^ (WORD32)b) & (WORD32)MIN_32) == 0) {
if (((WORD32)sum ^ (WORD32)a) & (WORD32)MIN_32) {
sum = (a < 0) ? MIN_32 : MAX_32;
}
}
if (sum >= MAX_32) return MAX_32;
if (sum <= MIN_32) return MIN_32;
return (WORD32)sum;
}
@ -212,11 +209,8 @@ static PLATFORM_INLINE WORD32 ixheaacd_sub32_sat(WORD32 a, WORD32 b) {
diff = (WORD64)a - (WORD64)b;
if ((((WORD32)a ^ (WORD32)b) & (WORD32)MIN_32) != 0) {
if (((WORD32)diff ^ (WORD32)a) & (WORD32)MIN_32) {
diff = (a < 0L) ? MIN_32 : MAX_32;
}
}
if (diff >= MAX_32) return MAX_32;
if (diff <= MIN_32) return MIN_32;
return (WORD32)diff;
}