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target-arm: Fix saturated values for Neon right shifts 

Fix value returned by signed 8 and 16 bit qrshl helpers
when the result has saturated.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
This commit is contained in:
Peter Maydell 2011-02-15 13:44:45 +00:00 committed by Aurelien Jarno
parent 51e3930fc7
commit 960e623bfd
1 changed files with 4 additions and 1 deletions
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5
target-arm/neon_helper.c
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@ -886,7 +886,10 @@ uint64_t HELPER(neon_qrshl_u64)(CPUState *env, uint64_t val, uint64_t shiftop)
dest = src1 << tmp; \ dest = src1 << tmp; \
if ((dest >> tmp) != src1) { \ if ((dest >> tmp) != src1) { \
SET_QC(); \ SET_QC(); \
dest = src1 >> 31; \ dest = (uint32_t)(1 << (sizeof(src1) * 8 - 1)); \
if (src1 > 0) { \
dest--; \
} \
} \ } \
}} while (0) }} while (0)
NEON_VOP_ENV(qrshl_s8, neon_s8, 4) NEON_VOP_ENV(qrshl_s8, neon_s8, 4)