diff options
| -rw-r--r-- | target-arm/neon_helper.c | 17 |
1 files changed, 3 insertions, 14 deletions
diff --git a/target-arm/neon_helper.c b/target-arm/neon_helper.c index a32a2c80f4..0ddfe6d0a2 100644 --- a/target-arm/neon_helper.c +++ b/target-arm/neon_helper.c @@ -543,14 +543,9 @@ uint64_t HELPER(neon_shl_s64)(uint64_t valop, uint64_t shiftop) #define NEON_FN(dest, src1, src2) do { \ int8_t tmp; \ tmp = (int8_t)src2; \ - if (tmp >= (ssize_t)sizeof(src1) * 8) { \ + if ((tmp >= (ssize_t)sizeof(src1) * 8) \ + || (tmp <= -(ssize_t)sizeof(src1) * 8)) { \ dest = 0; \ - } else if (tmp < -(ssize_t)sizeof(src1) * 8) { \ - dest = src1 >> (sizeof(src1) * 8 - 1); \ - } else if (tmp == -(ssize_t)sizeof(src1) * 8) { \ - dest = src1 >> (tmp - 1); \ - dest++; \ - dest >>= 1; \ } else if (tmp < 0) { \ dest = (src1 + (1 << (-1 - tmp))) >> -tmp; \ } else { \ @@ -584,14 +579,8 @@ uint64_t HELPER(neon_rshl_s64)(uint64_t valop, uint64_t shiftop) { int8_t shift = (int8_t)shiftop; int64_t val = valop; - if (shift >= 64) { + if ((shift >= 64) || (shift <= -64)) { val = 0; - } else if (shift < -64) { - val >>= 63; - } else if (shift == -63) { - val >>= 63; - val++; - val >>= 1; } else if (shift < 0) { val >>= (-shift - 1); if (val == INT64_MAX) { |