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[Lowering] Make the AddressLowering pass functional.

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This commit is contained in:
Andrew Trick
2016-10-28 16:40:41 -07:00
parent 855918c620
commit 10b118dfa9
3 changed files with 701 additions and 0 deletions
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22
lib/SIL/SILBasicBlock.cpp
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@@ -139,6 +139,28 @@ SILFunctionArgument *SILBasicBlock::insertFunctionArgument(arg_iterator Iter,
return new (getModule()) SILFunctionArgument(this, Iter, Ty, OwnershipKind, D);
}
SILFunctionArgument *SILBasicBlock::replaceFunctionArgument(
unsigned i, SILType Ty, ValueOwnershipKind Kind, const ValueDecl *D) {
assert(isEntry() && "Function Arguments can only be in the entry block");
SILModule &M = getParent()->getModule();
if (Ty.isTrivial(M))
Kind = ValueOwnershipKind::Trivial;
assert(ArgumentList[i]->use_empty() && "Expected no uses of the old arg!");
// Notify the delete handlers that this argument is being deleted.
M.notifyDeleteHandlers(ArgumentList[i]);
SILFunctionArgument *NewArg = new (M) SILFunctionArgument(Ty, Kind, D);
NewArg->setParent(this);
// TODO: When we switch to malloc/free allocation we'll be leaking memory
// here.
ArgumentList[i] = NewArg;
return NewArg;
}
/// Replace the ith BB argument with a new one with type Ty (and optional
/// ValueDecl D).
SILPHIArgument *SILBasicBlock::replacePHIArgument(unsigned i, SILType Ty,