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target/loongarch: Implement vclo vclz

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This patch includes:
- VCLO.{B/H/W/D};
- VCLZ.{B/H/W/D}.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230504122810.4094787-30-gaosong@loongson.cn>
This commit is contained in:
Song Gao 2023-05-04 20:27:55 +08:00
parent 162cd32cfe
commit 2e105e12a5
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GPG key ID: 40A2FFF239263EDF
5 changed files with 67 additions and 0 deletions
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31
target/loongarch/lsx_helper.c
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@ -1915,3 +1915,34 @@ void HELPER(vssrarni_du_q)(CPULoongArchState *env,
VSSRARNUI(vssrarni_bu_h, 16, B, H)
VSSRARNUI(vssrarni_hu_w, 32, H, W)
VSSRARNUI(vssrarni_wu_d, 64, W, D)
#define DO_2OP(NAME, BIT, E, DO_OP) \
void HELPER(NAME)(CPULoongArchState *env, uint32_t vd, uint32_t vj) \
{ \
int i; \
VReg *Vd = &(env->fpr[vd].vreg); \
VReg *Vj = &(env->fpr[vj].vreg); \
\
for (i = 0; i < LSX_LEN/BIT; i++) \
{ \
Vd->E(i) = DO_OP(Vj->E(i)); \
} \
}
#define DO_CLO_B(N) (clz32(~N & 0xff) - 24)
#define DO_CLO_H(N) (clz32(~N & 0xffff) - 16)
#define DO_CLO_W(N) (clz32(~N))
#define DO_CLO_D(N) (clz64(~N))
#define DO_CLZ_B(N) (clz32(N) - 24)
#define DO_CLZ_H(N) (clz32(N) - 16)
#define DO_CLZ_W(N) (clz32(N))
#define DO_CLZ_D(N) (clz64(N))
DO_2OP(vclo_b, 8, UB, DO_CLO_B)
DO_2OP(vclo_h, 16, UH, DO_CLO_H)
DO_2OP(vclo_w, 32, UW, DO_CLO_W)
DO_2OP(vclo_d, 64, UD, DO_CLO_D)
DO_2OP(vclz_b, 8, UB, DO_CLZ_B)
DO_2OP(vclz_h, 16, UH, DO_CLZ_H)
DO_2OP(vclz_w, 32, UW, DO_CLZ_W)
DO_2OP(vclz_d, 64, UD, DO_CLZ_D)