user0/rust
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Support different scalar integer widths in Rust v. LLVM.

Browse source 
Some x86 C intrinsics are declared to take `int ...` (i.e. exposed in
Rust as `i32`), but LLVM implements them by taking `i8` instead.
This commit is contained in:
Huon Wilson 2015-08-29 20:01:33 -07:00
parent daf8bdca57
commit 29dcff3aa2
9 changed files with 136 additions and 69 deletions
Download patch file Download diff file Expand all files Collapse all files

3
src/librustc_typeck/check/intrinsic.rs
View file

@ -456,7 +456,8 @@ fn match_intrinsic_type_to_type<'tcx, 'a>(
};
match *expected {
Integer(signed, bits) => match (signed, bits, &t.sty) {
// (The width we pass to LLVM doesn't concern the type checker.)
Integer(signed, bits, _llvm_width) => match (signed, bits, &t.sty) {
(true, 8, &ty::TyInt(ast::TyI8)) | (false, 8, &ty::TyUint(ast::TyU8)) |
(true, 16, &ty::TyInt(ast::TyI16)) | (false, 16, &ty::TyUint(ast::TyU16)) |
(true, 32, &ty::TyInt(ast::TyI32)) | (false, 32, &ty::TyUint(ast::TyU32)) |