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emit_x64_vector: EmitOneArgumentFallback

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This commit is contained in:
MerryMage 2018-02-11 11:58:39 +00:00
parent f378d2ef1b
commit 851fc83445
1 changed files with 24 additions and 2 deletions
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26
src/backend_x64/emit_x64_vector.cpp
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@ -31,6 +31,28 @@ static void EmitVectorOperation(BlockOfCode& code, EmitContext& ctx, IR::Inst* i
ctx.reg_alloc.DefineValue(inst, xmm_a);
}
template <typename Lambda>
static void EmitOneArgumentFallback(BlockOfCode& code, EmitContext& ctx, IR::Inst* inst, Lambda lambda) {
const auto fn = static_cast<mp::equivalent_function_type_t<Lambda>*>(lambda);
constexpr u32 stack_space = 2 * 16;
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
const Xbyak::Xmm arg1 = ctx.reg_alloc.UseXmm(args[0]);
ctx.reg_alloc.EndOfAllocScope();
ctx.reg_alloc.HostCall(nullptr);
code.sub(rsp, stack_space + ABI_SHADOW_SPACE);
code.lea(code.ABI_PARAM1, ptr[rsp + ABI_SHADOW_SPACE + 0 * 16]);
code.lea(code.ABI_PARAM2, ptr[rsp + ABI_SHADOW_SPACE + 1 * 16]);
code.movaps(xword[code.ABI_PARAM2], arg1);
code.CallFunction(fn);
code.movaps(xmm0, xword[rsp + ABI_SHADOW_SPACE + 0 * 16]);
code.add(rsp, stack_space + ABI_SHADOW_SPACE);
ctx.reg_alloc.DefineValue(inst, xmm0);
}
template <typename Lambda>
static void EmitTwoArgumentFallback(BlockOfCode& code, EmitContext& ctx, IR::Inst* inst, Lambda lambda) {
const auto fn = static_cast<mp::equivalent_function_type_t<Lambda>*>(lambda);
@ -48,7 +70,7 @@ static void EmitTwoArgumentFallback(BlockOfCode& code, EmitContext& ctx, IR::Ins
code.movaps(xword[code.ABI_PARAM2], arg1);
code.movaps(xword[code.ABI_PARAM3], arg2);
code.CallFunction(+fn);
code.CallFunction(fn);
code.movaps(xmm0, xword[rsp + ABI_SHADOW_SPACE + 0 * 16]);
code.add(rsp, stack_space + ABI_SHADOW_SPACE);
@ -909,7 +931,7 @@ void EmitX64::EmitVectorPopulationCount(EmitContext& ctx, IR::Inst* inst) {
return;
}
EmitTwoArgumentFallback(code, ctx, inst, [](std::array<u8, 16>& result, const std::array<u8, 16>& a){
EmitOneArgumentFallback(code, ctx, inst, [](std::array<u8, 16>& result, const std::array<u8, 16>& a){
for (size_t i = 0; i < 16; ++i) {
result[i] = static_cast<u8>(Common::BitCount(a[i]));
}