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backend/x64: Move check_bit from JitState to stack

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This commit is contained in:
MerryMage 2021-05-04 14:22:45 +01:00
parent a1950d1d2f
commit 030ff82ba8
5 changed files with 8 additions and 6 deletions
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5
src/backend/x64/a32_emit_x64.cpp
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@ -22,6 +22,7 @@
#include "backend/x64/emit_x64.h"
#include "backend/x64/nzcv_util.h"
#include "backend/x64/perf_map.h"
#include "backend/x64/stack_layout.h"
#include "common/assert.h"
#include "common/bit_util.h"
#include "common/common_types.h"
@ -324,7 +325,7 @@ void A32EmitX64::GenTerminalHandlers() {
void A32EmitX64::EmitA32SetCheckBit(A32EmitContext& ctx, IR::Inst* inst) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
const Xbyak::Reg8 to_store = ctx.reg_alloc.UseGpr(args[0]).cvt8();
code.mov(code.byte[r15 + offsetof(A32JitState, check_bit)], to_store);
code.mov(code.byte[rsp + ABI_SHADOW_SPACE + offsetof(StackLayout, check_bit)], to_store);
}
void A32EmitX64::EmitA32GetRegister(A32EmitContext& ctx, IR::Inst* inst) {
@ -1601,7 +1602,7 @@ void A32EmitX64::EmitTerminalImpl(IR::Term::If terminal, IR::LocationDescriptor
void A32EmitX64::EmitTerminalImpl(IR::Term::CheckBit terminal, IR::LocationDescriptor initial_location, bool is_single_step) {
Xbyak::Label fail;
code.cmp(code.byte[r15 + offsetof(A32JitState, check_bit)], u8(0));
code.cmp(code.byte[rsp + ABI_SHADOW_SPACE + offsetof(StackLayout, check_bit)], u8(0));
code.jz(fail);
EmitTerminal(terminal.then_, initial_location, is_single_step);
code.L(fail);