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Add an intrinsic for ptr::metadata

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This commit is contained in:
Scott McMurray 2024-04-21 16:11:01 -07:00
parent 7717a306b2
commit 459ce3f6bb
31 changed files with 422 additions and 52 deletions
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38
compiler/rustc_codegen_cranelift/src/base.rs
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@ -619,22 +619,34 @@ fn codegen_stmt<'tcx>(
Rvalue::UnaryOp(un_op, ref operand) => {
let operand = codegen_operand(fx, operand);
let layout = operand.layout();
let val = operand.load_scalar(fx);
let res = match un_op {
UnOp::Not => match layout.ty.kind() {
ty::Bool => {
let res = fx.bcx.ins().icmp_imm(IntCC::Equal, val, 0);
CValue::by_val(res, layout)
UnOp::Not => {
let val = operand.load_scalar(fx);
match layout.ty.kind() {
ty::Bool => {
let res = fx.bcx.ins().icmp_imm(IntCC::Equal, val, 0);
CValue::by_val(res, layout)
}
ty::Uint(_) | ty::Int(_) => {
CValue::by_val(fx.bcx.ins().bnot(val), layout)
}
_ => unreachable!("un op Not for {:?}", layout.ty),
}
ty::Uint(_) | ty::Int(_) => {
CValue::by_val(fx.bcx.ins().bnot(val), layout)
}
UnOp::Neg => {
let val = operand.load_scalar(fx);
match layout.ty.kind() {
ty::Int(_) => CValue::by_val(fx.bcx.ins().ineg(val), layout),
ty::Float(_) => CValue::by_val(fx.bcx.ins().fneg(val), layout),
_ => unreachable!("un op Neg for {:?}", layout.ty),
}
_ => unreachable!("un op Not for {:?}", layout.ty),
},
UnOp::Neg => match layout.ty.kind() {
ty::Int(_) => CValue::by_val(fx.bcx.ins().ineg(val), layout),
ty::Float(_) => CValue::by_val(fx.bcx.ins().fneg(val), layout),
_ => unreachable!("un op Neg for {:?}", layout.ty),
}
UnOp::PtrMetadata => match layout.abi {
Abi::Scalar(_) => CValue::zst(dest_layout),
Abi::ScalarPair(_, _) => {
CValue::by_val(operand.load_scalar_pair(fx).1, dest_layout)
}
_ => bug!("Unexpected `PtrToMetadata` operand: {operand:?}"),
},
};
lval.write_cvalue(fx, res);