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Parse input in a single pass.

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This commit is contained in:
losfair
2019-04-17 02:10:36 +08:00
parent c47eb6eaa2
commit 0da2442be1
4 changed files with 275 additions and 308 deletions
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60
lib/singlepass-backend/src/codegen_x64.rs
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@ -1232,11 +1232,7 @@ impl X64FunctionCode {
a.emit_mov(Size::S32, addr, Location::GPR(tmp_addr));
match (offset as u32).checked_add(value_size as u32) {
Some(x) => {
a.emit_add(
Size::S64,
Location::Imm32(x),
Location::GPR(tmp_addr),
);
a.emit_add(Size::S64, Location::Imm32(x), Location::GPR(tmp_addr));
}
None => {
a.emit_add(
@ -1409,13 +1405,13 @@ impl FunctionCodeGenerator for X64FunctionCode {
Ok(())
}
fn feed_opcode(&mut self, op: Operator, module_info: &ModuleInfo) -> Result<(), CodegenError> {
fn feed_opcode(&mut self, op: &Operator, module_info: &ModuleInfo) -> Result<(), CodegenError> {
//println!("{:?} {}", op, self.value_stack.len());
let was_unreachable;
if self.unreachable_depth > 0 {
was_unreachable = true;
match op {
match *op {
Operator::Block { .. } | Operator::Loop { .. } | Operator::If { .. } => {
self.unreachable_depth += 1;
}
@ -1442,7 +1438,7 @@ impl FunctionCodeGenerator for X64FunctionCode {
}
let a = self.assembler.as_mut().unwrap();
match op {
match *op {
Operator::GetGlobal { global_index } => {
let global_index = global_index as usize;
@ -3344,7 +3340,7 @@ impl FunctionCodeGenerator for X64FunctionCode {
self.value_stack.push((ret, LocalOrTemp::Temp));
a.emit_mov(Size::S64, Location::GPR(GPR::RAX), ret);
}
Operator::I32Load { memarg } => {
Operator::I32Load { ref memarg } => {
let target =
get_location_released(a, &mut self.machine, self.value_stack.pop().unwrap());
let ret = self.machine.acquire_locations(a, &[WpType::I32], false)[0];
@ -3369,7 +3365,7 @@ impl FunctionCodeGenerator for X64FunctionCode {
},
);
}
Operator::F32Load { memarg } => {
Operator::F32Load { ref memarg } => {
let target =
get_location_released(a, &mut self.machine, self.value_stack.pop().unwrap());
let ret = self.machine.acquire_locations(a, &[WpType::F32], false)[0];
@ -3394,7 +3390,7 @@ impl FunctionCodeGenerator for X64FunctionCode {
},
);
}
Operator::I32Load8U { memarg } => {
Operator::I32Load8U { ref memarg } => {
let target =
get_location_released(a, &mut self.machine, self.value_stack.pop().unwrap());
let ret = self.machine.acquire_locations(a, &[WpType::I32], false)[0];
@ -3420,7 +3416,7 @@ impl FunctionCodeGenerator for X64FunctionCode {
},
);
}
Operator::I32Load8S { memarg } => {
Operator::I32Load8S { ref memarg } => {
let target =
get_location_released(a, &mut self.machine, self.value_stack.pop().unwrap());
let ret = self.machine.acquire_locations(a, &[WpType::I32], false)[0];
@ -3446,7 +3442,7 @@ impl FunctionCodeGenerator for X64FunctionCode {
},
);
}
Operator::I32Load16U { memarg } => {
Operator::I32Load16U { ref memarg } => {
let target =
get_location_released(a, &mut self.machine, self.value_stack.pop().unwrap());
let ret = self.machine.acquire_locations(a, &[WpType::I32], false)[0];
@ -3472,7 +3468,7 @@ impl FunctionCodeGenerator for X64FunctionCode {
},
);
}
Operator::I32Load16S { memarg } => {
Operator::I32Load16S { ref memarg } => {
let target =
get_location_released(a, &mut self.machine, self.value_stack.pop().unwrap());
let ret = self.machine.acquire_locations(a, &[WpType::I32], false)[0];
@ -3498,7 +3494,7 @@ impl FunctionCodeGenerator for X64FunctionCode {
},
);
}
Operator::I32Store { memarg } => {
Operator::I32Store { ref memarg } => {
let target_value =
get_location_released(a, &mut self.machine, self.value_stack.pop().unwrap());
let target_addr =
@ -3523,7 +3519,7 @@ impl FunctionCodeGenerator for X64FunctionCode {
},
);
}
Operator::F32Store { memarg } => {
Operator::F32Store { ref memarg } => {
let target_value =
get_location_released(a, &mut self.machine, self.value_stack.pop().unwrap());
let target_addr =
@ -3548,7 +3544,7 @@ impl FunctionCodeGenerator for X64FunctionCode {
},
);
}
Operator::I32Store8 { memarg } => {
Operator::I32Store8 { ref memarg } => {
let target_value =
get_location_released(a, &mut self.machine, self.value_stack.pop().unwrap());
let target_addr =
@ -3573,7 +3569,7 @@ impl FunctionCodeGenerator for X64FunctionCode {
},
);
}
Operator::I32Store16 { memarg } => {
Operator::I32Store16 { ref memarg } => {
let target_value =
get_location_released(a, &mut self.machine, self.value_stack.pop().unwrap());
let target_addr =
@ -3598,7 +3594,7 @@ impl FunctionCodeGenerator for X64FunctionCode {
},
);
}
Operator::I64Load { memarg } => {
Operator::I64Load { ref memarg } => {
let target =
get_location_released(a, &mut self.machine, self.value_stack.pop().unwrap());
let ret = self.machine.acquire_locations(a, &[WpType::I64], false)[0];
@ -3623,7 +3619,7 @@ impl FunctionCodeGenerator for X64FunctionCode {
},
);
}
Operator::F64Load { memarg } => {
Operator::F64Load { ref memarg } => {
let target =
get_location_released(a, &mut self.machine, self.value_stack.pop().unwrap());
let ret = self.machine.acquire_locations(a, &[WpType::F64], false)[0];
@ -3648,7 +3644,7 @@ impl FunctionCodeGenerator for X64FunctionCode {
},
);
}
Operator::I64Load8U { memarg } => {
Operator::I64Load8U { ref memarg } => {
let target =
get_location_released(a, &mut self.machine, self.value_stack.pop().unwrap());
let ret = self.machine.acquire_locations(a, &[WpType::I64], false)[0];
@ -3674,7 +3670,7 @@ impl FunctionCodeGenerator for X64FunctionCode {
},
);
}
Operator::I64Load8S { memarg } => {
Operator::I64Load8S { ref memarg } => {
let target =
get_location_released(a, &mut self.machine, self.value_stack.pop().unwrap());
let ret = self.machine.acquire_locations(a, &[WpType::I64], false)[0];
@ -3700,7 +3696,7 @@ impl FunctionCodeGenerator for X64FunctionCode {
},
);
}
Operator::I64Load16U { memarg } => {
Operator::I64Load16U { ref memarg } => {
let target =
get_location_released(a, &mut self.machine, self.value_stack.pop().unwrap());
let ret = self.machine.acquire_locations(a, &[WpType::I64], false)[0];
@ -3726,7 +3722,7 @@ impl FunctionCodeGenerator for X64FunctionCode {
},
);
}
Operator::I64Load16S { memarg } => {
Operator::I64Load16S { ref memarg } => {
let target =
get_location_released(a, &mut self.machine, self.value_stack.pop().unwrap());
let ret = self.machine.acquire_locations(a, &[WpType::I64], false)[0];
@ -3752,7 +3748,7 @@ impl FunctionCodeGenerator for X64FunctionCode {
},
);
}
Operator::I64Load32U { memarg } => {
Operator::I64Load32U { ref memarg } => {
let target =
get_location_released(a, &mut self.machine, self.value_stack.pop().unwrap());
let ret = self.machine.acquire_locations(a, &[WpType::I64], false)[0];
@ -3783,7 +3779,7 @@ impl FunctionCodeGenerator for X64FunctionCode {
},
);
}
Operator::I64Load32S { memarg } => {
Operator::I64Load32S { ref memarg } => {
let target =
get_location_released(a, &mut self.machine, self.value_stack.pop().unwrap());
let ret = self.machine.acquire_locations(a, &[WpType::I64], false)[0];
@ -3809,7 +3805,7 @@ impl FunctionCodeGenerator for X64FunctionCode {
},
);
}
Operator::I64Store { memarg } => {
Operator::I64Store { ref memarg } => {
let target_value =
get_location_released(a, &mut self.machine, self.value_stack.pop().unwrap());
let target_addr =
@ -3834,7 +3830,7 @@ impl FunctionCodeGenerator for X64FunctionCode {
},
);
}
Operator::F64Store { memarg } => {
Operator::F64Store { ref memarg } => {
let target_value =
get_location_released(a, &mut self.machine, self.value_stack.pop().unwrap());
let target_addr =
@ -3859,7 +3855,7 @@ impl FunctionCodeGenerator for X64FunctionCode {
},
);
}
Operator::I64Store8 { memarg } => {
Operator::I64Store8 { ref memarg } => {
let target_value =
get_location_released(a, &mut self.machine, self.value_stack.pop().unwrap());
let target_addr =
@ -3884,7 +3880,7 @@ impl FunctionCodeGenerator for X64FunctionCode {
},
);
}
Operator::I64Store16 { memarg } => {
Operator::I64Store16 { ref memarg } => {
let target_value =
get_location_released(a, &mut self.machine, self.value_stack.pop().unwrap());
let target_addr =
@ -3909,7 +3905,7 @@ impl FunctionCodeGenerator for X64FunctionCode {
},
);
}
Operator::I64Store32 { memarg } => {
Operator::I64Store32 { ref memarg } => {
let target_value =
get_location_released(a, &mut self.machine, self.value_stack.pop().unwrap());
let target_addr =
@ -4009,7 +4005,7 @@ impl FunctionCodeGenerator for X64FunctionCode {
a.emit_label(after);
}
Operator::BrTable { table } => {
Operator::BrTable { ref table } => {
let (targets, default_target) = table.read_table().unwrap();
let cond =
get_location_released(a, &mut self.machine, self.value_stack.pop().unwrap());