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trans: Pass newtypes of immediates as their inner-most type again.

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This commit is contained in:
Eduard Burtescu 2016-03-18 01:01:47 +02:00
parent 02a141a550
commit 9a8b80762b
1 changed files with 18 additions and 2 deletions
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20
src/librustc_trans/trans/abi.rs
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@ -378,11 +378,27 @@ impl FnType {
if abi == Abi::Rust || abi == Abi::RustCall ||
abi == Abi::RustIntrinsic || abi == Abi::PlatformIntrinsic {
let fixup = |arg: &mut ArgType| {
if !arg.ty.is_aggregate() {
let mut llty = arg.ty;
// Replace newtypes with their inner-most type.
while llty.kind() == llvm::TypeKind::Struct {
let inner = llty.field_types();
if inner.len() != 1 {
break;
}
llty = inner[0];
}
if !llty.is_aggregate() {
// Scalars and vectors, always immediate.
if llty != arg.ty {
// Needs a cast as we've unpacked a newtype.
arg.cast = Some(llty);
}
return;
}
let size = llsize_of_real(ccx, arg.ty);
let size = llsize_of_real(ccx, llty);
if size > llsize_of_real(ccx, ccx.int_type()) {
arg.make_indirect(ccx);
} else if size > 0 {