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Box CastTarget within PassMode.

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Because `PassMode::Cast` is by far the largest variant, but is
relatively rare.

This requires making `PassMode` not impl `Copy`, and `Clone` is no
longer necessary. This causes lots of sigil adjusting, but nothing very
notable.
This commit is contained in:
Nicholas Nethercote
2022-08-25 17:52:37 +10:00
parent 263c426bfd
commit e4bf113027
11 changed files with 57 additions and 57 deletions
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4
compiler/rustc_codegen_gcc/src/abi.rs
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@@ -133,7 +133,7 @@ impl<'gcc, 'tcx> FnAbiGccExt<'gcc, 'tcx> for FnAbi<'tcx, Ty<'tcx>> {
match self.ret.mode {
PassMode::Ignore => cx.type_void(),
PassMode::Direct(_) | PassMode::Pair(..) => self.ret.layout.immediate_gcc_type(cx),
PassMode::Cast(cast) => cast.gcc_type(cx),
PassMode::Cast(ref cast) => cast.gcc_type(cx),
PassMode::Indirect { .. } => {
argument_tys.push(cx.type_ptr_to(self.ret.memory_ty(cx)));
cx.type_void()
@@ -157,7 +157,7 @@ impl<'gcc, 'tcx> FnAbiGccExt<'gcc, 'tcx> for FnAbi<'tcx, Ty<'tcx>> {
PassMode::Indirect { extra_attrs: Some(_), .. } => {
unimplemented!();
}
PassMode::Cast(cast) => cast.gcc_type(cx),
PassMode::Cast(ref cast) => cast.gcc_type(cx),
PassMode::Indirect { extra_attrs: None, on_stack: true, .. } => {
on_stack_param_indices.insert(argument_tys.len());
arg.memory_ty(cx)