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Replace OffsetOf by an actual sum.

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This commit is contained in:
Camille Gillot 2025-10-25 04:15:43 +00:00
parent d1c33c3e84
commit 94ff1de61e
1 changed files with 4 additions and 21 deletions
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25
src/base.rs
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@ -853,31 +853,14 @@ fn codegen_stmt<'tcx>(fx: &mut FunctionCx<'_, '_, 'tcx>, cur_block: Block, stmt:
fx.bcx.ins().nop();
}
}
Rvalue::NullaryOp(ref null_op, ty) => {
Rvalue::NullaryOp(ref null_op) => {
assert!(lval.layout().ty.is_sized(fx.tcx, fx.typing_env()));
let layout = fx.layout_of(fx.monomorphize(ty));
let val = match null_op {
NullOp::OffsetOf(fields) => fx
.tcx
.offset_of_subfield(
ty::TypingEnv::fully_monomorphized(),
layout,
fields.iter(),
)
.bytes(),
NullOp::RuntimeChecks(kind) => {
let val = kind.value(fx.tcx.sess);
let val = CValue::by_val(
fx.bcx.ins().iconst(types::I8, i64::from(val)),
fx.layout_of(fx.tcx.types.bool),
);
lval.write_cvalue(fx, val);
return;
}
NullOp::RuntimeChecks(kind) => kind.value(fx.tcx.sess),
};
let val = CValue::by_val(
fx.bcx.ins().iconst(fx.pointer_type, i64::try_from(val).unwrap()),
fx.layout_of(fx.tcx.types.usize),
fx.bcx.ins().iconst(types::I8, i64::from(val)),
fx.layout_of(fx.tcx.types.bool),
);
lval.write_cvalue(fx, val);
}