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Make PlaceRef hold a PlaceValue for the non-layout fields (like OperandRef does)

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This commit is contained in:
Scott McMurray
2024-04-10 22:07:21 -07:00
parent c2239bca5b
commit 89502e584b
14 changed files with 171 additions and 121 deletions
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10
compiler/rustc_codegen_ssa/src/traits/builder.rs
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@@ -290,14 +290,14 @@ pub trait BuilderMethods<'a, 'tcx>:
src: PlaceRef<'tcx, Self::Value>,
flags: MemFlags,
) {
debug_assert!(src.llextra.is_none(), "cannot directly copy from unsized values");
debug_assert!(dst.llextra.is_none(), "cannot directly copy into unsized values");
debug_assert!(src.val.llextra.is_none(), "cannot directly copy from unsized values");
debug_assert!(dst.val.llextra.is_none(), "cannot directly copy into unsized values");
debug_assert_eq!(dst.layout.size, src.layout.size);
if flags.contains(MemFlags::NONTEMPORAL) {
// HACK(nox): This is inefficient but there is no nontemporal memcpy.
let ty = self.backend_type(dst.layout);
let val = self.load(ty, src.llval, src.align);
self.store_with_flags(val, dst.llval, dst.align, flags);
let val = self.load(ty, src.val.llval, src.val.align);
self.store_with_flags(val, dst.val.llval, dst.val.align, flags);
} else if self.sess().opts.optimize == OptLevel::No && self.is_backend_immediate(dst.layout)
{
// If we're not optimizing, the aliasing information from `memcpy`
@@ -306,7 +306,7 @@ pub trait BuilderMethods<'a, 'tcx>:
temp.val.store_with_flags(self, dst, flags);
} else if !dst.layout.is_zst() {
let bytes = self.const_usize(dst.layout.size.bytes());
self.memcpy(dst.llval, dst.align, src.llval, src.align, bytes, flags);
self.memcpy(dst.val.llval, dst.val.align, src.val.llval, src.val.align, bytes, flags);
}
}