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target/loongarch: Implement vdiv/vmod

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This patch includes:
- VDIV.{B/H/W/D}[U];
- VMOD.{B/H/W/D}[U].

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230504122810.4094787-17-gaosong@loongson.cn>
This commit is contained in:
Song Gao 2023-05-04 20:27:42 +08:00
parent d3aec65bc1
commit 4cc4c0f78b
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GPG key ID: 40A2FFF239263EDF
5 changed files with 105 additions and 0 deletions
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37
target/loongarch/lsx_helper.c
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@ -553,3 +553,40 @@ void HELPER(NAME)(void *vd, void *vj, void *vk, uint32_t v) \
VMADDWOD_U_S(vmaddwod_h_bu_b, 16, H, UH, B, UB, DO_MUL)
VMADDWOD_U_S(vmaddwod_w_hu_h, 32, W, UW, H, UH, DO_MUL)
VMADDWOD_U_S(vmaddwod_d_wu_w, 64, D, UD, W, UW, DO_MUL)
#define DO_DIVU(N, M) (unlikely(M == 0) ? 0 : N / M)
#define DO_REMU(N, M) (unlikely(M == 0) ? 0 : N % M)
#define DO_DIV(N, M) (unlikely(M == 0) ? 0 :\
unlikely((N == -N) && (M == (__typeof(N))(-1))) ? N : N / M)
#define DO_REM(N, M) (unlikely(M == 0) ? 0 :\
unlikely((N == -N) && (M == (__typeof(N))(-1))) ? 0 : N % M)
#define VDIV(NAME, BIT, E, DO_OP) \
void HELPER(NAME)(CPULoongArchState *env, \
uint32_t vd, uint32_t vj, uint32_t vk) \
{ \
int i; \
VReg *Vd = &(env->fpr[vd].vreg); \
VReg *Vj = &(env->fpr[vj].vreg); \
VReg *Vk = &(env->fpr[vk].vreg); \
for (i = 0; i < LSX_LEN/BIT; i++) { \
Vd->E(i) = DO_OP(Vj->E(i), Vk->E(i)); \
} \
}
VDIV(vdiv_b, 8, B, DO_DIV)
VDIV(vdiv_h, 16, H, DO_DIV)
VDIV(vdiv_w, 32, W, DO_DIV)
VDIV(vdiv_d, 64, D, DO_DIV)
VDIV(vdiv_bu, 8, UB, DO_DIVU)
VDIV(vdiv_hu, 16, UH, DO_DIVU)
VDIV(vdiv_wu, 32, UW, DO_DIVU)
VDIV(vdiv_du, 64, UD, DO_DIVU)
VDIV(vmod_b, 8, B, DO_REM)
VDIV(vmod_h, 16, H, DO_REM)
VDIV(vmod_w, 32, W, DO_REM)
VDIV(vmod_d, 64, D, DO_REM)
VDIV(vmod_bu, 8, UB, DO_REMU)
VDIV(vmod_hu, 16, UH, DO_REMU)
VDIV(vmod_wu, 32, UW, DO_REMU)
VDIV(vmod_du, 64, UD, DO_REMU)