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Fix emit_lea.

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This commit is contained in:
losfair 2019-09-17 00:49:21 +08:00
parent 05557fc9ad
commit d8b313e3fd
1 changed files with 10 additions and 2 deletions
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8
lib/singlepass-backend/src/translator_aarch64.rs
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@ -325,10 +325,18 @@ impl Emitter for Assembler {
fn emit_lea(&mut self, sz: Size, src: Location, dst: Location) { fn emit_lea(&mut self, sz: Size, src: Location, dst: Location) {
match (sz, src, dst) { match (sz, src, dst) {
(Size::S32, Location::Memory(src, disp), Location::GPR(dst)) => { (Size::S32, Location::Memory(src, disp), Location::GPR(dst)) => {
if disp >= 0 {
dynasm!(self ; add W(map_gpr(dst).x()), W(map_gpr(src).x()), disp as u32); dynasm!(self ; add W(map_gpr(dst).x()), W(map_gpr(src).x()), disp as u32);
} else {
dynasm!(self ; sub W(map_gpr(dst).x()), W(map_gpr(src).x()), (-disp) as u32);
}
} }
(Size::S64, Location::Memory(src, disp), Location::GPR(dst)) => { (Size::S64, Location::Memory(src, disp), Location::GPR(dst)) => {
if disp >= 0 {
dynasm!(self ; add X(map_gpr(dst).x()), X(map_gpr(src).x()), disp as u32); dynasm!(self ; add X(map_gpr(dst).x()), X(map_gpr(src).x()), disp as u32);
} else {
dynasm!(self ; sub X(map_gpr(dst).x()), X(map_gpr(src).x()), (-disp) as u32);
}
} }
_ => unreachable!(), _ => unreachable!(),
} }