From 6de2c08bc400b4aca9fb46684e8bdb56eed9b09f Mon Sep 17 00:00:00 2001
From: dim <dim@FreeBSD.org>
Date: Sun, 2 Dec 2012 13:10:19 +0000
Subject: Vendor import of llvm release_32 branch r168974 (effectively, 3.2
RC2): http://llvm.org/svn/llvm-project/llvm/branches/release_32@168974
---
lib/Transforms/IPO/ArgumentPromotion.cpp | 64 +++++++++++++++-----------------
1 file changed, 30 insertions(+), 34 deletions(-)
(limited to 'lib/Transforms/IPO/ArgumentPromotion.cpp')
diff --git a/lib/Transforms/IPO/ArgumentPromotion.cpp b/lib/Transforms/IPO/ArgumentPromotion.cpp
index b94dd69..be48b20 100644
--- a/lib/Transforms/IPO/ArgumentPromotion.cpp
+++ b/lib/Transforms/IPO/ArgumentPromotion.cpp
@@ -153,7 +153,8 @@ CallGraphNode *ArgPromotion::PromoteArguments(CallGraphNode *CGN) {
SmallPtrSet<Argument*, 8> ArgsToPromote;
SmallPtrSet<Argument*, 8> ByValArgsToTransform;
for (unsigned i = 0; i != PointerArgs.size(); ++i) {
- bool isByVal = F->paramHasAttr(PointerArgs[i].second+1, Attribute::ByVal);
+ bool isByVal=F->getParamAttributes(PointerArgs[i].second+1).
+ hasAttribute(Attributes::ByVal);
Argument *PtrArg = PointerArgs[i].first;
Type *AgTy = cast<PointerType>(PtrArg->getType())->getElementType();
@@ -517,8 +518,10 @@ CallGraphNode *ArgPromotion::DoPromotion(Function *F,
const AttrListPtr &PAL = F->getAttributes();
// Add any return attributes.
- if (Attributes attrs = PAL.getRetAttributes())
- AttributesVec.push_back(AttributeWithIndex::get(0, attrs));
+ Attributes attrs = PAL.getRetAttributes();
+ if (attrs.hasAttributes())
+ AttributesVec.push_back(AttributeWithIndex::get(AttrListPtr::ReturnIndex,
+ attrs));
// First, determine the new argument list
unsigned ArgIndex = 1;
@@ -534,7 +537,8 @@ CallGraphNode *ArgPromotion::DoPromotion(Function *F,
} else if (!ArgsToPromote.count(I)) {
// Unchanged argument
Params.push_back(I->getType());
- if (Attributes attrs = PAL.getParamAttributes(ArgIndex))
+ Attributes attrs = PAL.getParamAttributes(ArgIndex);
+ if (attrs.hasAttributes())
AttributesVec.push_back(AttributeWithIndex::get(Params.size(), attrs));
} else if (I->use_empty()) {
// Dead argument (which are always marked as promotable)
@@ -587,19 +591,13 @@ CallGraphNode *ArgPromotion::DoPromotion(Function *F,
}
// Add any function attributes.
- if (Attributes attrs = PAL.getFnAttributes())
- AttributesVec.push_back(AttributeWithIndex::get(~0, attrs));
+ attrs = PAL.getFnAttributes();
+ if (attrs.hasAttributes())
+ AttributesVec.push_back(AttributeWithIndex::get(AttrListPtr::FunctionIndex,
+ attrs));
Type *RetTy = FTy->getReturnType();
- // Work around LLVM bug PR56: the CWriter cannot emit varargs functions which
- // have zero fixed arguments.
- bool ExtraArgHack = false;
- if (Params.empty() && FTy->isVarArg()) {
- ExtraArgHack = true;
- Params.push_back(Type::getInt32Ty(F->getContext()));
- }
-
// Construct the new function type using the new arguments.
FunctionType *NFTy = FunctionType::get(RetTy, Params, FTy->isVarArg());
@@ -613,7 +611,7 @@ CallGraphNode *ArgPromotion::DoPromotion(Function *F,
// Recompute the parameter attributes list based on the new arguments for
// the function.
- NF->setAttributes(AttrListPtr::get(AttributesVec));
+ NF->setAttributes(AttrListPtr::get(F->getContext(), AttributesVec));
AttributesVec.clear();
F->getParent()->getFunctionList().insert(F, NF);
@@ -641,8 +639,10 @@ CallGraphNode *ArgPromotion::DoPromotion(Function *F,
const AttrListPtr &CallPAL = CS.getAttributes();
// Add any return attributes.
- if (Attributes attrs = CallPAL.getRetAttributes())
- AttributesVec.push_back(AttributeWithIndex::get(0, attrs));
+ Attributes attrs = CallPAL.getRetAttributes();
+ if (attrs.hasAttributes())
+ AttributesVec.push_back(AttributeWithIndex::get(AttrListPtr::ReturnIndex,
+ attrs));
// Loop over the operands, inserting GEP and loads in the caller as
// appropriate.
@@ -653,7 +653,8 @@ CallGraphNode *ArgPromotion::DoPromotion(Function *F,
if (!ArgsToPromote.count(I) && !ByValArgsToTransform.count(I)) {
Args.push_back(*AI); // Unmodified argument
- if (Attributes Attrs = CallPAL.getParamAttributes(ArgIndex))
+ Attributes Attrs = CallPAL.getParamAttributes(ArgIndex);
+ if (Attrs.hasAttributes())
AttributesVec.push_back(AttributeWithIndex::get(Args.size(), Attrs));
} else if (ByValArgsToTransform.count(I)) {
@@ -711,30 +712,32 @@ CallGraphNode *ArgPromotion::DoPromotion(Function *F,
}
}
- if (ExtraArgHack)
- Args.push_back(Constant::getNullValue(Type::getInt32Ty(F->getContext())));
-
// Push any varargs arguments on the list.
for (; AI != CS.arg_end(); ++AI, ++ArgIndex) {
Args.push_back(*AI);
- if (Attributes Attrs = CallPAL.getParamAttributes(ArgIndex))
+ Attributes Attrs = CallPAL.getParamAttributes(ArgIndex);
+ if (Attrs.hasAttributes())
AttributesVec.push_back(AttributeWithIndex::get(Args.size(), Attrs));
}
// Add any function attributes.
- if (Attributes attrs = CallPAL.getFnAttributes())
- AttributesVec.push_back(AttributeWithIndex::get(~0, attrs));
+ attrs = CallPAL.getFnAttributes();
+ if (attrs.hasAttributes())
+ AttributesVec.push_back(AttributeWithIndex::get(AttrListPtr::FunctionIndex,
+ attrs));
Instruction *New;
if (InvokeInst *II = dyn_cast<InvokeInst>(Call)) {
New = InvokeInst::Create(NF, II->getNormalDest(), II->getUnwindDest(),
Args, "", Call);
cast<InvokeInst>(New)->setCallingConv(CS.getCallingConv());
- cast<InvokeInst>(New)->setAttributes(AttrListPtr::get(AttributesVec));
+ cast<InvokeInst>(New)->setAttributes(AttrListPtr::get(II->getContext(),
+ AttributesVec));
} else {
New = CallInst::Create(NF, Args, "", Call);
cast<CallInst>(New)->setCallingConv(CS.getCallingConv());
- cast<CallInst>(New)->setAttributes(AttrListPtr::get(AttributesVec));
+ cast<CallInst>(New)->setAttributes(AttrListPtr::get(New->getContext(),
+ AttributesVec));
if (cast<CallInst>(Call)->isTailCall())
cast<CallInst>(New)->setTailCall();
}
@@ -870,16 +873,9 @@ CallGraphNode *ArgPromotion::DoPromotion(Function *F,
}
// Increment I2 past all of the arguments added for this promoted pointer.
- for (unsigned i = 0, e = ArgIndices.size(); i != e; ++i)
- ++I2;
+ std::advance(I2, ArgIndices.size());
}
- // Notify the alias analysis implementation that we inserted a new argument.
- if (ExtraArgHack)
- AA.copyValue(Constant::getNullValue(Type::getInt32Ty(F->getContext())),
- NF->arg_begin());
-
-
// Tell the alias analysis that the old function is about to disappear.
AA.replaceWithNewValue(F, NF);
--
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