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| author | Emilio Cobos Álvarez <emilio@crisal.io> | 2020-11-28 01:33:32 +0100 |
|---|---|---|
| committer | Emilio Cobos Álvarez <emilio@crisal.io> | 2020-11-28 03:14:51 +0100 |
| commit | 19142ac6b3d8ee4fc5686d6f30b77e660026e528 (patch) | |
| tree | 7be336cb2bfd34e6a8c844b868efb4332aba9c4f /src/codegen/mod.rs | |
| parent | 6a5726eac514b49ec8a9f8360ed5d0d73da9feb7 (diff) | |
struct_layout: Fix field offset computation for packed(n) structs.
This can cause unnecessary padding to be computed otherwise at the end
of the struct.
With repr(packed(n)), a field can have padding to adjacent fields as
long as its alignment is less than n. So reuse the code we have to align
to a field layout, aligning to the struct layout instead.
Fixes #1934
Diffstat (limited to 'src/codegen/mod.rs')
| -rw-r--r-- | src/codegen/mod.rs | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/codegen/mod.rs b/src/codegen/mod.rs index 15aea22a..0d93c491 100644 --- a/src/codegen/mod.rs +++ b/src/codegen/mod.rs @@ -1650,7 +1650,7 @@ impl CodeGenerator for CompInfo { let ty = item.expect_type(); let layout = ty.layout(ctx); - let mut packed = self.is_packed(ctx, &layout); + let mut packed = self.is_packed(ctx, layout.as_ref()); let canonical_name = item.canonical_name(ctx); let canonical_ident = ctx.rust_ident(&canonical_name); |