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IR: Add VectorSignedSaturatedDoublingMultiplyLong

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This commit is contained in:
MerryMage
2018-09-15 13:38:17 +01:00
parent 06b31448aa
commit 3e447614c6
5 changed files with 97 additions and 0 deletions
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79
src/backend/x64/emit_x64_vector.cpp
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@@ -3262,6 +3262,85 @@ void EmitX64::EmitVectorSignedSaturatedDoublingMultiply32(EmitContext& ctx, IR::
}
}
void EmitX64::EmitVectorSignedSaturatedDoublingMultiplyLong16(EmitContext& ctx, IR::Inst* inst) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
const Xbyak::Xmm x = ctx.reg_alloc.UseScratchXmm(args[0]);
const Xbyak::Xmm y = ctx.reg_alloc.UseScratchXmm(args[1]);
code.punpcklwd(x, x);
code.punpcklwd(y, y);
code.pmaddwd(x, y);
if (code.DoesCpuSupport(Xbyak::util::Cpu::tAVX)) {
code.vpcmpeqd(y, x, code.MConst(xword, 0x8000000080000000, 0x8000000080000000));
code.vpxor(x, x, y);
} else {
code.movdqa(y, code.MConst(xword, 0x8000000080000000, 0x8000000080000000));
code.pcmpeqd(y, x);
code.pxor(x, y);
}
const Xbyak::Reg32 bit = ctx.reg_alloc.ScratchGpr().cvt32();
code.pmovmskb(bit, y);
code.or_(code.dword[code.r15 + code.GetJitStateInfo().offsetof_fpsr_qc], bit);
ctx.reg_alloc.DefineValue(inst, x);
}
void EmitX64::EmitVectorSignedSaturatedDoublingMultiplyLong32(EmitContext& ctx, IR::Inst* inst) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
const Xbyak::Xmm x = ctx.reg_alloc.UseScratchXmm(args[0]);
const Xbyak::Xmm y = ctx.reg_alloc.UseScratchXmm(args[1]);
if (code.DoesCpuSupport(Xbyak::util::Cpu::tAVX)) {
code.vpmovsxdq(x, x);
code.vpmovsxdq(y, y);
code.vpmuldq(x, x, y);
code.vpaddq(x, x, x);
} else {
const Xbyak::Reg64 a = ctx.reg_alloc.ScratchGpr();
const Xbyak::Reg64 b = ctx.reg_alloc.ScratchGpr();
const Xbyak::Reg64 c = ctx.reg_alloc.ScratchGpr();
const Xbyak::Reg64 d = ctx.reg_alloc.ScratchGpr();
code.movq(c, x);
code.movq(d, y);
code.movsxd(a, c.cvt32());
code.movsxd(b, d.cvt32());
code.sar(c, 32);
code.sar(d, 32);
code.imul(a, b);
code.imul(c, d);
code.movq(x, a);
code.movq(y, c);
code.punpcklqdq(x, y);
code.paddq(x, x);
ctx.reg_alloc.Release(a);
ctx.reg_alloc.Release(b);
ctx.reg_alloc.Release(c);
ctx.reg_alloc.Release(d);
}
const Xbyak::Reg32 bit = ctx.reg_alloc.ScratchGpr().cvt32();
if (code.DoesCpuSupport(Xbyak::util::Cpu::tAVX)) {
code.vpcmpeqq(y, x, code.MConst(xword, 0x8000000000000000, 0x8000000000000000));
code.vpxor(x, x, y);
code.vpmovmskb(bit, y);
} else {
code.movdqa(y, code.MConst(xword, 0x8000000000000000, 0x8000000000000000));
code.pcmpeqd(y, x);
code.shufps(y, y, 0b11110101);
code.pxor(x, y);
code.pmovmskb(bit, y);
}
code.or_(code.dword[code.r15 + code.GetJitStateInfo().offsetof_fpsr_qc], bit);
ctx.reg_alloc.DefineValue(inst, x);
}
static void EmitVectorSignedSaturatedNarrowToSigned(size_t original_esize, BlockOfCode& code, EmitContext& ctx, IR::Inst* inst) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
const Xbyak::Xmm src = ctx.reg_alloc.UseXmm(args[0]);