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movzx/movsx

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This commit is contained in:
losfair 2019-09-19 01:04:20 +08:00
parent 8a91f801b9
commit 5f8b289751
1 changed files with 57 additions and 4 deletions
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61
lib/singlepass-backend/src/translator_aarch64.rs
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@ -654,8 +654,7 @@ impl Emitter for Assembler {
binop_all_nofp!(and, self, sz, src, dst, { unreachable!("and") });
}
fn emit_or(&mut self, sz: Size, src: Location, dst: Location) {
//binop_all_nofp!(or, self, sz, src, dst, { unreachable!("or") });
unimplemented!("instruction");
binop_all_nofp!(orr, self, sz, src, dst, { unreachable!("or") });
}
fn emit_lzcnt(&mut self, sz: Size, src: Location, dst: Location) {
match sz {
@ -742,10 +741,64 @@ impl Emitter for Assembler {
fn emit_popcnt(&mut self, sz: Size, src: Location, dst: Location) {
unimplemented!("instruction")
}
fn emit_movzx(&mut self, sz_src: Size, src: Location, sz_dst: Size, dst: Location) {
unimplemented!("instruction")
fn emit_movzx(&mut self, sz_src: Size, src: Location, _sz_dst: Size, dst: Location) {
match (sz_src, src, dst) {
(Size::S8, Location::GPR(src), Location::GPR(dst)) => {
dynasm!(self ; uxtb W(map_gpr(dst).x()), W(map_gpr(src).x()));
}
(Size::S16, Location::GPR(src), Location::GPR(dst)) => {
dynasm!(self ; uxth W(map_gpr(dst).x()), W(map_gpr(src).x()));
}
(Size::S8, Location::Memory(src, disp), Location::GPR(dst)) => {
assert!(disp >= 0);
dynasm!(self ; ldrb W(map_gpr(dst).x()), [X(map_gpr(src).x()), disp as u32]);
}
(Size::S16, Location::Memory(src, disp), Location::GPR(dst)) => {
assert!(disp >= 0);
dynasm!(self ; ldrh W(map_gpr(dst).x()), [X(map_gpr(src).x()), disp as u32]);
}
_ => unreachable!(),
}
}
fn emit_movsx(&mut self, sz_src: Size, src: Location, sz_dst: Size, dst: Location) {
match (sz_src, src, sz_dst, dst) {
(Size::S8, Location::GPR(src), Size::S32, Location::GPR(dst)) => {
dynasm!(self ; sxtb W(map_gpr(dst).x()), W(map_gpr(src).x()));
}
(Size::S16, Location::GPR(src), Size::S32, Location::GPR(dst)) => {
dynasm!(self ; sxth W(map_gpr(dst).x()), W(map_gpr(src).x()));
}
(Size::S8, Location::Memory(src, disp), Size::S32, Location::GPR(dst)) => {
assert!(disp >= 0);
dynasm!(self ; ldrb W(map_gpr(dst).x()), [X(map_gpr(src).x()), disp as u32]; sxtb W(map_gpr(dst).x()), W(map_gpr(dst).x()));
}
(Size::S16, Location::Memory(src, disp), Size::S32, Location::GPR(dst)) => {
assert!(disp >= 0);
dynasm!(self ; ldrh W(map_gpr(dst).x()), [X(map_gpr(src).x()), disp as u32]; sxth W(map_gpr(dst).x()), W(map_gpr(dst).x()));
}
(Size::S8, Location::GPR(src), Size::S64, Location::GPR(dst)) => {
dynasm!(self ; sxtb X(map_gpr(dst).x()), W(map_gpr(src).x()));
}
(Size::S16, Location::GPR(src), Size::S64, Location::GPR(dst)) => {
dynasm!(self ; sxth X(map_gpr(dst).x()), W(map_gpr(src).x()));
}
(Size::S32, Location::GPR(src), Size::S64, Location::GPR(dst)) => {
dynasm!(self ; sxtw X(map_gpr(dst).x()), W(map_gpr(src).x()));
}
(Size::S8, Location::Memory(src, disp), Size::S64, Location::GPR(dst)) => {
assert!(disp >= 0);
dynasm!(self ; ldrb W(map_gpr(dst).x()), [X(map_gpr(src).x()), disp as u32]; sxtb X(map_gpr(dst).x()), W(map_gpr(dst).x()));
}
(Size::S16, Location::Memory(src, disp), Size::S64, Location::GPR(dst)) => {
assert!(disp >= 0);
dynasm!(self ; ldrh W(map_gpr(dst).x()), [X(map_gpr(src).x()), disp as u32]; sxth X(map_gpr(dst).x()), W(map_gpr(dst).x()));
}
(Size::S32, Location::Memory(src, disp), Size::S64, Location::GPR(dst)) => {
assert!(disp >= 0);
dynasm!(self ; ldrh W(map_gpr(dst).x()), [X(map_gpr(src).x()), disp as u32]; sxtw X(map_gpr(dst).x()), W(map_gpr(dst).x()));
}
_ => unreachable!(),
}
unimplemented!("instruction")
}