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fix cranelift

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This commit is contained in:
Ralf Jung 2021-07-13 00:41:10 +02:00
parent 71c166a0dc
commit 172abb29b1
1 changed files with 11 additions and 10 deletions
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21
compiler/rustc_codegen_cranelift/src/constant.rs
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@ -193,20 +193,21 @@ pub(crate) fn codegen_const_value<'tcx>(
place.to_cvalue(fx)
}
}
Scalar::Ptr(ptr) => {
let alloc_kind = fx.tcx.get_global_alloc(ptr.alloc_id);
Scalar::Ptr(ptr, _size) => {
let (alloc_id, offset) = ptr.into_parts(); // we know the `offset` is relative
let alloc_kind = fx.tcx.get_global_alloc(alloc_id);
let base_addr = match alloc_kind {
Some(GlobalAlloc::Memory(alloc)) => {
let data_id = data_id_for_alloc_id(
&mut fx.constants_cx,
fx.module,
ptr.alloc_id,
alloc_id,
alloc.mutability,
);
let local_data_id =
fx.module.declare_data_in_func(data_id, &mut fx.bcx.func);
if fx.clif_comments.enabled() {
fx.add_comment(local_data_id, format!("{:?}", ptr.alloc_id));
fx.add_comment(local_data_id, format!("{:?}", alloc_id));
}
fx.bcx.ins().global_value(fx.pointer_type, local_data_id)
}
@ -226,10 +227,10 @@ pub(crate) fn codegen_const_value<'tcx>(
}
fx.bcx.ins().global_value(fx.pointer_type, local_data_id)
}
None => bug!("missing allocation {:?}", ptr.alloc_id),
None => bug!("missing allocation {:?}", alloc_id),
};
let val = if ptr.offset.bytes() != 0 {
fx.bcx.ins().iadd_imm(base_addr, i64::try_from(ptr.offset.bytes()).unwrap())
let val = if offset.bytes() != 0 {
fx.bcx.ins().iadd_imm(base_addr, i64::try_from(offset.bytes()).unwrap())
} else {
base_addr
};
@ -406,7 +407,7 @@ fn define_all_allocs(tcx: TyCtxt<'_>, module: &mut dyn Module, cx: &mut Constant
let bytes = alloc.inspect_with_uninit_and_ptr_outside_interpreter(0..alloc.len()).to_vec();
data_ctx.define(bytes.into_boxed_slice());
for &(offset, (_tag, reloc)) in alloc.relocations().iter() {
for &(offset, alloc_id) in alloc.relocations().iter() {
let addend = {
let endianness = tcx.data_layout.endian;
let offset = offset.bytes() as usize;
@ -417,7 +418,7 @@ fn define_all_allocs(tcx: TyCtxt<'_>, module: &mut dyn Module, cx: &mut Constant
read_target_uint(endianness, bytes).unwrap()
};
let reloc_target_alloc = tcx.get_global_alloc(reloc).unwrap();
let reloc_target_alloc = tcx.get_global_alloc(alloc_id).unwrap();
let data_id = match reloc_target_alloc {
GlobalAlloc::Function(instance) => {
assert_eq!(addend, 0);
@ -427,7 +428,7 @@ fn define_all_allocs(tcx: TyCtxt<'_>, module: &mut dyn Module, cx: &mut Constant
continue;
}
GlobalAlloc::Memory(target_alloc) => {
data_id_for_alloc_id(cx, module, reloc, target_alloc.mutability)
data_id_for_alloc_id(cx, module, alloc_id, target_alloc.mutability)
}
GlobalAlloc::Static(def_id) => {
if tcx.codegen_fn_attrs(def_id).flags.contains(CodegenFnAttrFlags::THREAD_LOCAL)