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A64: Implement addsub instructions

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This commit is contained in:
MerryMage
2018-01-07 11:31:20 +00:00
parent d1cef6ffb0
commit c09e69bb97
15 changed files with 796 additions and 84 deletions
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37
src/backend_x64/a64_emit_x64.cpp
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@@ -115,6 +115,23 @@ A64EmitX64::BlockDescriptor A64EmitX64::Emit(IR::Block& block) {
return block_desc;
}
void A64EmitX64::EmitA64GetCFlag(A64EmitContext& ctx, IR::Inst* inst) {
Xbyak::Reg32 result = ctx.reg_alloc.ScratchGpr().cvt32();
code->mov(result, dword[r15 + offsetof(A64JitState, CPSR_nzcv)]);
code->shr(result, 29);
code->and_(result, 1);
ctx.reg_alloc.DefineValue(inst, result);
}
void A64EmitX64::EmitA64SetNZCV(A64EmitContext& ctx, IR::Inst* inst) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
Xbyak::Reg32 to_store = ctx.reg_alloc.UseGpr(args[0]).cvt32();
code->and_(to_store, 0b11000001'00000001);
code->imul(to_store, to_store, 0b00010000'00100001);
code->and_(to_store, 0xFF000000);
code->mov(dword[r15 + offsetof(A64JitState, CPSR_nzcv)], to_store);
}
void A64EmitX64::EmitA64GetW(A64EmitContext& ctx, IR::Inst* inst) {
A64::Reg reg = inst->GetArg(0).GetA64RegRef();
@@ -131,6 +148,12 @@ void A64EmitX64::EmitA64GetX(A64EmitContext& ctx, IR::Inst* inst) {
ctx.reg_alloc.DefineValue(inst, result);
}
void A64EmitX64::EmitA64GetSP(A64EmitContext& ctx, IR::Inst* inst) {
Xbyak::Reg64 result = ctx.reg_alloc.ScratchGpr();
code->mov(result, qword[r15 + offsetof(A64JitState, sp)]);
ctx.reg_alloc.DefineValue(inst, result);
}
void A64EmitX64::EmitA64SetW(A64EmitContext& ctx, IR::Inst* inst) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
A64::Reg reg = inst->GetArg(0).GetA64RegRef();
@@ -161,6 +184,20 @@ void A64EmitX64::EmitA64SetX(A64EmitContext& ctx, IR::Inst* inst) {
}
}
void A64EmitX64::EmitA64SetSP(A64EmitContext& ctx, IR::Inst* inst) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
auto addr = qword[r15 + offsetof(A64JitState, sp)];
if (args[0].IsImmediate()) {
code->mov(addr, args[0].GetImmediateU64());
} else if (args[0].IsInXmm()) {
Xbyak::Xmm to_store = ctx.reg_alloc.UseXmm(args[0]);
code->movq(addr, to_store);
} else {
Xbyak::Reg64 to_store = ctx.reg_alloc.UseGpr(args[0]);
code->mov(addr, to_store);
}
}
void A64EmitX64::EmitTerminalImpl(IR::Term::Interpret terminal, IR::LocationDescriptor) {
code->mov(code->ABI_PARAM1, A64::LocationDescriptor{terminal.next}.PC());
code->mov(code->ABI_PARAM2.cvt32(), 1);