diff options
| author | Richard Henderson <richard.henderson@linaro.org> | 2021-02-24 15:05:32 -0800 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2021-03-05 15:17:34 +0000 |
| commit | 519183d3fee58e52f7b51cf146c9dc9edc565059 (patch) | |
| tree | a69f2eb4218c6fcf7fbd4908661eaf23d129d836 /target/arm/helper-a64.h | |
| parent | 4565afbbf0b6d897ee746f2410d60460f43c3159 (diff) | |
target/arm: Speed up aarch64 TBL/TBX
Always perform one call instead of two for 16-byte operands.
Use byte loads/stores directly into the vector register file
instead of extractions and deposits to a 64-bit local variable.
In order to easily receive pointers into the vector register file,
convert the helper to the gvec out-of-line signature. Move the
helper into vec_helper.c, where it can make use of H1 and clear_tail.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20210224230532.276878-1-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'target/arm/helper-a64.h')
| -rw-r--r-- | target/arm/helper-a64.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/target/arm/helper-a64.h b/target/arm/helper-a64.h index 7bd6aed659..c139fa81f9 100644 --- a/target/arm/helper-a64.h +++ b/target/arm/helper-a64.h @@ -28,7 +28,7 @@ DEF_HELPER_3(vfp_cmps_a64, i64, f32, f32, ptr) DEF_HELPER_3(vfp_cmpes_a64, i64, f32, f32, ptr) DEF_HELPER_3(vfp_cmpd_a64, i64, f64, f64, ptr) DEF_HELPER_3(vfp_cmped_a64, i64, f64, f64, ptr) -DEF_HELPER_FLAGS_5(simd_tbl, TCG_CALL_NO_RWG_SE, i64, env, i64, i64, i32, i32) +DEF_HELPER_FLAGS_4(simd_tblx, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32) DEF_HELPER_FLAGS_3(vfp_mulxs, TCG_CALL_NO_RWG, f32, f32, f32, ptr) DEF_HELPER_FLAGS_3(vfp_mulxd, TCG_CALL_NO_RWG, f64, f64, f64, ptr) DEF_HELPER_FLAGS_3(neon_ceq_f64, TCG_CALL_NO_RWG, i64, i64, i64, ptr) |