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-rw-r--r--target-arm/neon_helper.c15
1 files changed, 12 insertions, 3 deletions
diff --git a/target-arm/neon_helper.c b/target-arm/neon_helper.c
index 48b9f5b5b5..dae063ea1a 100644
--- a/target-arm/neon_helper.c
+++ b/target-arm/neon_helper.c
@@ -580,9 +580,15 @@ uint64_t HELPER(neon_qshl_u64)(CPUState *env, uint64_t val, uint64_t shiftop)
int8_t tmp; \
tmp = (int8_t)src2; \
if (tmp >= (ssize_t)sizeof(src1) * 8) { \
- if (src1) \
+ if (src1) { \
SET_QC(); \
- dest = src1 >> 31; \
+ dest = (uint32_t)(1 << (sizeof(src1) * 8 - 1)); \
+ if (src1 > 0) { \
+ dest--; \
+ } \
+ } else { \
+ dest = src1; \
+ } \
} else if (tmp <= -(ssize_t)sizeof(src1) * 8) { \
dest = src1 >> 31; \
} else if (tmp < 0) { \
@@ -591,7 +597,10 @@ uint64_t HELPER(neon_qshl_u64)(CPUState *env, uint64_t val, uint64_t shiftop)
dest = src1 << tmp; \
if ((dest >> tmp) != src1) { \
SET_QC(); \
- dest = src2 >> 31; \
+ dest = (uint32_t)(1 << (sizeof(src1) * 8 - 1)); \
+ if (src1 > 0) { \
+ dest--; \
+ } \
} \
}} while (0)
NEON_VOP_ENV(qshl_s8, neon_s8, 4)