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IR: Implement VectorTranspose

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This commit is contained in:
MerryMage 2020-06-21 11:10:14 +01:00
parent 9cc11681dc
commit 7d1e103ff5
4 changed files with 82 additions and 0 deletions
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63
src/backend/x64/emit_x64_vector.cpp
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@ -4326,6 +4326,69 @@ void EmitX64::EmitVectorTableLookup128(EmitContext& ctx, IR::Inst* inst) {
ctx.reg_alloc.DefineValue(inst, result);
}
void EmitX64::EmitVectorTranspose8(EmitContext& ctx, IR::Inst* inst) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
const Xbyak::Xmm lower = ctx.reg_alloc.UseScratchXmm(args[0]);
const Xbyak::Xmm upper = ctx.reg_alloc.UseScratchXmm(args[1]);
const bool part = args[2].GetImmediateU1();
if (!part) {
code.pand(lower, code.MConst(xword, 0x00FF00FF00FF00FF, 0x00FF00FF00FF00FF));
code.psllw(upper, 8);
} else {
code.psrlw(lower, 8);
code.pand(upper, code.MConst(xword, 0xFF00FF00FF00FF00, 0xFF00FF00FF00FF00));
}
code.por(lower, upper);
ctx.reg_alloc.DefineValue(inst, lower);
}
void EmitX64::EmitVectorTranspose16(EmitContext& ctx, IR::Inst* inst) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
const Xbyak::Xmm lower = ctx.reg_alloc.UseScratchXmm(args[0]);
const Xbyak::Xmm upper = ctx.reg_alloc.UseScratchXmm(args[1]);
const bool part = args[2].GetImmediateU1();
if (!part) {
code.pand(lower, code.MConst(xword, 0x0000FFFF0000FFFF, 0x0000FFFF0000FFFF));
code.pslld(upper, 16);
} else {
code.psrld(lower, 16);
code.pand(upper, code.MConst(xword, 0xFFFF0000FFFF0000, 0xFFFF0000FFFF0000));
}
code.por(lower, upper);
ctx.reg_alloc.DefineValue(inst, lower);
}
void EmitX64::EmitVectorTranspose32(EmitContext& ctx, IR::Inst* inst) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
const Xbyak::Xmm lower = ctx.reg_alloc.UseScratchXmm(args[0]);
const Xbyak::Xmm upper = ctx.reg_alloc.UseXmm(args[1]);
const bool part = args[2].GetImmediateU1();
code.shufps(lower, upper, !part ? 0b10001000 : 0b11011101);
code.pshufd(lower, lower, 0b11011000);
ctx.reg_alloc.DefineValue(inst, lower);
}
void EmitX64::EmitVectorTranspose64(EmitContext& ctx, IR::Inst* inst) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
const Xbyak::Xmm lower = ctx.reg_alloc.UseScratchXmm(args[0]);
const Xbyak::Xmm upper = ctx.reg_alloc.UseXmm(args[1]);
const bool part = args[2].GetImmediateU1();
code.shufpd(lower, upper, !part ? 0b00 : 0b11);
ctx.reg_alloc.DefineValue(inst, lower);
}
static void EmitVectorUnsignedAbsoluteDifference(size_t esize, EmitContext& ctx, IR::Inst* inst, BlockOfCode& code) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);