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[SIL] Added strong_copy_weak_value.

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The new instruction unwraps an `@sil_weak` box and produces an owned
value. It is only legal in opaque values mode and is transformed by
`AddressLowering` to `load_weak`.
This commit is contained in:
Nate Chandler
2023-07-31 07:13:12 -07:00
parent c44b23c954
commit e135c5cac7
22 changed files with 265 additions and 106 deletions
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12
lib/SILGen/SILGenBuilder.cpp
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@@ -175,6 +175,18 @@ ManagedValue SILGenBuilder::createCopyValue(SILLocation loc,
return SGF.emitManagedRValueWithCleanup(result, lowering);
}
#define NEVER_LOADABLE_CHECKED_REF_STORAGE(Name, ...) \
ManagedValue SILGenBuilder::createStrongCopy##Name##Value( \
SILLocation loc, ManagedValue originalValue) { \
assert(!SGF.useLoweredAddresses()); \
auto ty = originalValue.getType(); \
assert(ty.isAddressOnly(SGF.F)); \
auto storageTy = originalValue.getType().castTo<Name##StorageType>(); \
(void)storageTy; \
SILValue result = \
createStrongCopy##Name##Value(loc, originalValue.getValue()); \
return SGF.emitManagedRValueWithCleanup(result); \
}
#define SOMETIMES_LOADABLE_CHECKED_REF_STORAGE(Name, ...) \
ManagedValue SILGenBuilder::createStrongCopy##Name##Value( \
SILLocation loc, ManagedValue originalValue) { \