diff options
-rw-r--r-- | target-tilegx/simd_helper.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/target-tilegx/simd_helper.c b/target-tilegx/simd_helper.c index b9319292f3..f573f9b51a 100644 --- a/target-tilegx/simd_helper.c +++ b/target-tilegx/simd_helper.c @@ -23,12 +23,16 @@ #include "exec/helper-proto.h" +/* Broadcast a value to all elements of a vector. */ +#define V1(X) (((X) & 0xff) * 0x0101010101010101ull) + + uint64_t helper_v1shl(uint64_t a, uint64_t b) { uint64_t m; b &= 7; - m = 0x0101010101010101ULL * (0xff >> b); + m = V1(0xff >> b); return (a & m) << b; } @@ -37,7 +41,7 @@ uint64_t helper_v1shru(uint64_t a, uint64_t b) uint64_t m; b &= 7; - m = 0x0101010101010101ULL * ((0xff << b) & 0xff); + m = V1(0xff << b); return (a & m) >> b; } @@ -48,8 +52,7 @@ uint64_t helper_v1shrs(uint64_t a, uint64_t b) b &= 7; for (i = 0; i < 64; i += 8) { - int64_t ae = (int8_t)(a >> i); - r |= ((ae >> b) & 0xff) << i; + r = deposit64(r, i, 8, sextract64(a, i + b, 8 - b)); } return r; } |