From: Christophe Lyon <christophe.l...@st.com>
Fix value returned by signed qrshl helpers (8, 16 and 32 bits).
Signed-off-by: Christophe Lyon <christophe.l...@st.com>
---
target-arm/neon_helper.c | 8 ++++++--
1 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/target-arm/neon_helper.c b/target-arm/neon_helper.c
index 907f7b7..83d610a 100644
--- a/target-arm/neon_helper.c
+++ b/target-arm/neon_helper.c
@@ -903,7 +903,7 @@ uint64_t HELPER(neon_qrshl_u64)(CPUState *env, uint64_t
val, uint64_t shiftop)
dest = src1 << tmp; \
if ((dest >> tmp) != src1) { \
SET_QC(); \
- dest = src1 >> 31; \
+ dest = (uint32_t)(1 << (sizeof(src1) * 8 - 1)) - (src1 > 0 ? 1 :
0); \
} \
}} while (0)
NEON_VOP_ENV(qrshl_s8, neon_s8, 4)
@@ -924,7 +924,11 @@ uint32_t HELPER(neon_qrshl_s32)(CPUState *env, uint32_t
valop, uint32_t shiftop)
dest = val << shift;
if ((dest >> shift) != val) {
SET_QC();
- dest = (uint32_t)(1 << (sizeof(val) * 8 - 1)) - (val > 0 ? 1 : 0);
+ if (val < 0) {
+ dest = INT32_MIN;
+ } else {
+ dest = INT32_MAX;
+ }
}
}
return dest;
--
1.7.2.3
