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| author | Peter Maydell | 2020-08-28 20:33:49 +0200 |
|---|---|---|
| committer | Peter Maydell | 2020-09-01 12:45:20 +0200 |
| commit | 18725916b1438b54d6d6533980833d2251a20b7c (patch) | |
| tree | 627a404469829a695e5094bc15594ef5dfc0fcfc /target/arm/vec_helper.c | |
| parent | target/arm: Implement fp16 for Neon VCVT with rounding modes (diff) | |
| download | qemu-18725916b1438b54d6d6533980833d2251a20b7c.tar.gz qemu-18725916b1438b54d6d6533980833d2251a20b7c.tar.xz qemu-18725916b1438b54d6d6533980833d2251a20b7c.zip | |
target/arm: Implement fp16 for Neon VRINT-with-specified-rounding-mode
Convert the Neon VRINT-with-specified-rounding-mode insns to gvec,
and use this to implement the fp16 versions.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200828183354.27913-41-peter.maydell@linaro.org
Diffstat (limited to 'target/arm/vec_helper.c')
| -rw-r--r-- | target/arm/vec_helper.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/target/arm/vec_helper.c b/target/arm/vec_helper.c index fae0fe7529..7ddf1e791c 100644 --- a/target/arm/vec_helper.c +++ b/target/arm/vec_helper.c @@ -1892,3 +1892,24 @@ DO_VCVT_RMODE(gvec_vcvt_rm_sh, helper_vfp_toshh, uint16_t) DO_VCVT_RMODE(gvec_vcvt_rm_uh, helper_vfp_touhh, uint16_t) #undef DO_VCVT_RMODE + +#define DO_VRINT_RMODE(NAME, FUNC, TYPE) \ + void HELPER(NAME)(void *vd, void *vn, void *stat, uint32_t desc) \ + { \ + float_status *fpst = stat; \ + intptr_t i, oprsz = simd_oprsz(desc); \ + uint32_t rmode = simd_data(desc); \ + uint32_t prev_rmode = get_float_rounding_mode(fpst); \ + TYPE *d = vd, *n = vn; \ + set_float_rounding_mode(rmode, fpst); \ + for (i = 0; i < oprsz / sizeof(TYPE); i++) { \ + d[i] = FUNC(n[i], fpst); \ + } \ + set_float_rounding_mode(prev_rmode, fpst); \ + clear_tail(d, oprsz, simd_maxsz(desc)); \ + } + +DO_VRINT_RMODE(gvec_vrint_rm_h, helper_rinth, uint16_t) +DO_VRINT_RMODE(gvec_vrint_rm_s, helper_rints, uint32_t) + +#undef DO_VRINT_RMODE |