diff options
| author | Richard Henderson <richard.henderson@linaro.org> | 2019-04-30 11:02:23 -0700 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2019-05-22 15:09:43 -0400 |
| commit | 38dc12947ec9106237f9cdbd428792c985cd86ae (patch) | |
| tree | e9358d64ea6a91ed24c196f3add29a1f958c6416 /accel/tcg | |
| parent | 532ba368a13712724137228b5e7e9435994d25e1 (diff) | |
| download | qemu-38dc12947ec9106237f9cdbd428792c985cd86ae.zip | |
tcg: Add support for vector bitwise select
This operation performs d = (b & a) | (c & ~a), and is present
on a majority of host vector units. Include gvec expanders.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'accel/tcg')
| -rw-r--r-- | accel/tcg/tcg-runtime-gvec.c | 14 | ||||
| -rw-r--r-- | accel/tcg/tcg-runtime.h | 2 |
2 files changed, 16 insertions, 0 deletions
diff --git a/accel/tcg/tcg-runtime-gvec.c b/accel/tcg/tcg-runtime-gvec.c index 0f09e0ef38..3b6052fe97 100644 --- a/accel/tcg/tcg-runtime-gvec.c +++ b/accel/tcg/tcg-runtime-gvec.c @@ -1444,3 +1444,17 @@ void HELPER(gvec_umax64)(void *d, void *a, void *b, uint32_t desc) } clear_high(d, oprsz, desc); } + +void HELPER(gvec_bitsel)(void *d, void *a, void *b, void *c, uint32_t desc) +{ + intptr_t oprsz = simd_oprsz(desc); + intptr_t i; + + for (i = 0; i < oprsz; i += sizeof(vec64)) { + vec64 aa = *(vec64 *)(a + i); + vec64 bb = *(vec64 *)(b + i); + vec64 cc = *(vec64 *)(c + i); + *(vec64 *)(d + i) = (bb & aa) | (cc & ~aa); + } + clear_high(d, oprsz, desc); +} diff --git a/accel/tcg/tcg-runtime.h b/accel/tcg/tcg-runtime.h index 6d73dc2d65..4fa61b49b4 100644 --- a/accel/tcg/tcg-runtime.h +++ b/accel/tcg/tcg-runtime.h @@ -303,3 +303,5 @@ DEF_HELPER_FLAGS_4(gvec_leu8, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32) DEF_HELPER_FLAGS_4(gvec_leu16, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32) DEF_HELPER_FLAGS_4(gvec_leu32, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32) DEF_HELPER_FLAGS_4(gvec_leu64, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32) + +DEF_HELPER_FLAGS_5(gvec_bitsel, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, ptr, i32) |