fluencelabs/wasmer
1
0
Fork 0
mirror of https://github.com/fluencelabs/wasmer synced 2025-03-17 08:40:50 +00:00
Code Issues Projects Releases Wiki Activity

Correct this test and simplify.

Browse Source
This commit is contained in:
Nick Lewycky 2019-09-24 10:54:23 -07:00
parent 07b5991080
commit be181f9119
1 changed files with 17 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

35
lib/singlepass-backend/src/codegen_x64.rs
View File

@ -1512,24 +1512,23 @@ impl X64FunctionCode {
a.emit_add(Size::S64, Location::GPR(tmp_base), Location::GPR(tmp_bound));
a.emit_mov(Size::S32, addr, Location::GPR(tmp_addr));
if offset != 0 && value_size != 0 {
// This branch is used for emitting "faster" code for the special case of (offset + value_size) not exceeding u32 range.
match (offset as u32).checked_add(value_size as u32) {
Some(x) => {
a.emit_add(Size::S64, Location::Imm32(x), Location::GPR(tmp_addr));
}
None => {
a.emit_add(
Size::S64,
Location::Imm32(offset as u32),
Location::GPR(tmp_addr),
);
a.emit_add(
Size::S64,
Location::Imm32(value_size as u32),
Location::GPR(tmp_addr),
);
}
// This branch is used for emitting "faster" code for the special case of (offset + value_size) not exceeding u32 range.
match (offset as u32).checked_add(value_size as u32) {
Some(0) => {}
Some(x) => {
a.emit_add(Size::S64, Location::Imm32(x), Location::GPR(tmp_addr));
}
None => {
a.emit_add(
Size::S64,
Location::Imm32(offset as u32),
Location::GPR(tmp_addr),
);
a.emit_add(
Size::S64,
Location::Imm32(value_size as u32),
Location::GPR(tmp_addr),
);
}
}