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target/loongarch: Implement vexth

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This patch includes:
- VEXTH.{H.B/W.H/D.W/Q.D};
- VEXTH.{HU.BU/WU.HU/DU.WU/QU.DU}.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230504122810.4094787-19-gaosong@loongson.cn>
This commit is contained in:
Song Gao 2023-05-04 20:27:44 +08:00
parent cbe44190cc
commit 3734ad9370
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GPG key ID: 40A2FFF239263EDF
5 changed files with 82 additions and 0 deletions
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35
target/loongarch/lsx_helper.c
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@ -627,3 +627,38 @@ VSAT_U(vsat_bu, 8, UB)
VSAT_U(vsat_hu, 16, UH)
VSAT_U(vsat_wu, 32, UW)
VSAT_U(vsat_du, 64, UD)
#define VEXTH(NAME, BIT, E1, E2) \
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->E1(i) = Vj->E2(i + LSX_LEN/BIT); \
} \
}
void HELPER(vexth_q_d)(CPULoongArchState *env, uint32_t vd, uint32_t vj)
{
VReg *Vd = &(env->fpr[vd].vreg);
VReg *Vj = &(env->fpr[vj].vreg);
Vd->Q(0) = int128_makes64(Vj->D(1));
}
void HELPER(vexth_qu_du)(CPULoongArchState *env, uint32_t vd, uint32_t vj)
{
VReg *Vd = &(env->fpr[vd].vreg);
VReg *Vj = &(env->fpr[vj].vreg);
Vd->Q(0) = int128_make64((uint64_t)Vj->D(1));
}
VEXTH(vexth_h_b, 16, H, B)
VEXTH(vexth_w_h, 32, W, H)
VEXTH(vexth_d_w, 64, D, W)
VEXTH(vexth_hu_bu, 16, UH, UB)
VEXTH(vexth_wu_hu, 32, UW, UH)
VEXTH(vexth_du_wu, 64, UD, UW)