WARNING! Access to this system is limited to authorised users only.
Unauthorised users may be subject to prosecution.
Unauthorised access to this system is a criminal offence under Australian law (Federal Crimes Act 1914 Part VIA)
It is a criminal offence to:
(1) Obtain access to data without authority. -Penalty 2 years imprisonment.
(2) Damage, delete, alter or insert data without authority. -Penalty 10 years imprisonment.
User activity is monitored and recorded. Anyone using this system expressly consents to such monitoring and recording.

Commit 36f00920 authored by qinsoon's avatar qinsoon
Browse files

fix peephole opt

for movl %edi %edi (where two operands are actually %edi %rdi), we will
do a check, and ensure it get removed
parent fdec1e4f
......@@ -2,6 +2,7 @@ use compiler::CompilerPass;
use ast::ir::*;
use vm::VM;
use compiler::machine_code::CompiledFunction;
use compiler::backend;
use std::any::Any;
......@@ -43,10 +44,13 @@ impl PeepholeOptimization {
}
};
if src_machine_reg == dst_machine_reg {
if backend::get_color_for_precolroed(src_machine_reg)
== backend::get_color_for_precolroed(dst_machine_reg) {
trace!("Redundant! removed");
// redundant, remove this move
cf.mc_mut().set_inst_nop(inst);
} else {
}
}
}
......
Markdown is supported
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment