When bootstrapping with --enable-checking=no you'll get:
gcc/rust/backend/rust-compile-type.cc: In member function
‘virtual void Rust::Compile::TyTyResolveCompile::visit(const
Rust::TyTy::ADTType&)’:
gcc/tree.h:2312:59: error: statement has no effect [-Werror=unused-value]
2312 | #define TYPE_PACKED(NODE) (TYPE_CHECK (NODE)->base.u.bits.packed_flag)
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~
gcc/rust/backend/rust-compile-type.cc:315:7:
note: in expansion of macro ‘TYPE_PACKED’
315 | TYPE_PACKED (type_record);
| ^~~~~~~~~~~
We need to actually set a value for the packed_flag.
---
https://code.wildebeest.org/git/user/mjw/gccrs/commit/?h=packed
gcc/rust/backend/rust-compile-type.cc | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/gcc/rust/backend/rust-compile-type.cc
b/gcc/rust/backend/rust-compile-type.cc
index 240abe0497e..eced909673e 100644
--- a/gcc/rust/backend/rust-compile-type.cc
+++ b/gcc/rust/backend/rust-compile-type.cc
@@ -312,7 +312,7 @@ TyTyResolveCompile::visit (const TyTy::ADTType &type)
TyTy::ADTType::ReprOptions repr = type.get_repr_options ();
if (repr.pack)
{
- TYPE_PACKED (type_record);
+ TYPE_PACKED (type_record) = 1;
if (repr.pack > 1)
{
SET_TYPE_ALIGN (type_record, repr.pack * 8);
--
2.30.2
--
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