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target/loongarch: Implement vmskltz/vmskgez/vmsknz

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This patch includes:
- VMSKLTZ.{B/H/W/D};
- VMSKGEZ.B;
- VMSKNZ.B.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230504122810.4094787-21-gaosong@loongson.cn>
This commit is contained in:
Song Gao 2023-05-04 20:27:46 +08:00
parent f0e395dfb0
commit 789f4a4c86
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GPG key ID: 40A2FFF239263EDF
5 changed files with 141 additions and 0 deletions
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113
target/loongarch/lsx_helper.c
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@ -669,3 +669,116 @@ DO_3OP(vsigncov_b, 8, B, DO_SIGNCOV)
DO_3OP(vsigncov_h, 16, H, DO_SIGNCOV)
DO_3OP(vsigncov_w, 32, W, DO_SIGNCOV)
DO_3OP(vsigncov_d, 64, D, DO_SIGNCOV)
static uint64_t do_vmskltz_b(int64_t val)
{
uint64_t m = 0x8080808080808080ULL;
uint64_t c = val & m;
c |= c << 7;
c |= c << 14;
c |= c << 28;
return c >> 56;
}
void HELPER(vmskltz_b)(CPULoongArchState *env, uint32_t vd, uint32_t vj)
{
uint16_t temp = 0;
VReg *Vd = &(env->fpr[vd].vreg);
VReg *Vj = &(env->fpr[vj].vreg);
temp = do_vmskltz_b(Vj->D(0));
temp |= (do_vmskltz_b(Vj->D(1)) << 8);
Vd->D(0) = temp;
Vd->D(1) = 0;
}
static uint64_t do_vmskltz_h(int64_t val)
{
uint64_t m = 0x8000800080008000ULL;
uint64_t c = val & m;
c |= c << 15;
c |= c << 30;
return c >> 60;
}
void HELPER(vmskltz_h)(CPULoongArchState *env, uint32_t vd, uint32_t vj)
{
uint16_t temp = 0;
VReg *Vd = &(env->fpr[vd].vreg);
VReg *Vj = &(env->fpr[vj].vreg);
temp = do_vmskltz_h(Vj->D(0));
temp |= (do_vmskltz_h(Vj->D(1)) << 4);
Vd->D(0) = temp;
Vd->D(1) = 0;
}
static uint64_t do_vmskltz_w(int64_t val)
{
uint64_t m = 0x8000000080000000ULL;
uint64_t c = val & m;
c |= c << 31;
return c >> 62;
}
void HELPER(vmskltz_w)(CPULoongArchState *env, uint32_t vd, uint32_t vj)
{
uint16_t temp = 0;
VReg *Vd = &(env->fpr[vd].vreg);
VReg *Vj = &(env->fpr[vj].vreg);
temp = do_vmskltz_w(Vj->D(0));
temp |= (do_vmskltz_w(Vj->D(1)) << 2);
Vd->D(0) = temp;
Vd->D(1) = 0;
}
static uint64_t do_vmskltz_d(int64_t val)
{
return (uint64_t)val >> 63;
}
void HELPER(vmskltz_d)(CPULoongArchState *env, uint32_t vd, uint32_t vj)
{
uint16_t temp = 0;
VReg *Vd = &(env->fpr[vd].vreg);
VReg *Vj = &(env->fpr[vj].vreg);
temp = do_vmskltz_d(Vj->D(0));
temp |= (do_vmskltz_d(Vj->D(1)) << 1);
Vd->D(0) = temp;
Vd->D(1) = 0;
}
void HELPER(vmskgez_b)(CPULoongArchState *env, uint32_t vd, uint32_t vj)
{
uint16_t temp = 0;
VReg *Vd = &(env->fpr[vd].vreg);
VReg *Vj = &(env->fpr[vj].vreg);
temp = do_vmskltz_b(Vj->D(0));
temp |= (do_vmskltz_b(Vj->D(1)) << 8);
Vd->D(0) = (uint16_t)(~temp);
Vd->D(1) = 0;
}
static uint64_t do_vmskez_b(uint64_t a)
{
uint64_t m = 0x7f7f7f7f7f7f7f7fULL;
uint64_t c = ~(((a & m) + m) | a | m);
c |= c << 7;
c |= c << 14;
c |= c << 28;
return c >> 56;
}
void HELPER(vmsknz_b)(CPULoongArchState *env, uint32_t vd, uint32_t vj)
{
uint16_t temp = 0;
VReg *Vd = &(env->fpr[vd].vreg);
VReg *Vj = &(env->fpr[vj].vreg);
temp = do_vmskez_b(Vj->D(0));
temp |= (do_vmskez_b(Vj->D(1)) << 8);
Vd->D(0) = (uint16_t)(~temp);
Vd->D(1) = 0;
}