bjoernager/rust
bjoernager/rust
1
Fork 0
Code Activity

offset_of: Don't require type to be sized

Browse source
This commit is contained in:
clubby789 2023-05-29 21:55:40 +00:00
parent 99ff5afeb8
commit 6c18d1ecef
2 changed files with 23 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

11
compiler/rustc_codegen_ssa/src/mir/rvalue.rs
View file

@ -668,11 +668,16 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> {
mir::Rvalue::NullaryOp(ref null_op, ty) => {
let ty = self.monomorphize(ty);
assert!(bx.cx().type_is_sized(ty));
let layout = bx.cx().layout_of(ty);
let val = match null_op {
mir::NullOp::SizeOf => layout.size.bytes(),
mir::NullOp::AlignOf => layout.align.abi.bytes(),
mir::NullOp::SizeOf => {
assert!(bx.cx().type_is_sized(ty));
layout.size.bytes()
}
mir::NullOp::AlignOf => {
assert!(bx.cx().type_is_sized(ty));
layout.align.abi.bytes()
}
mir::NullOp::OffsetOf(fields) => {
layout.offset_of_subfield(bx.cx(), fields.iter().map(|f| f.index())).bytes()
}