Update LLVM for rebase to r212749.
Includes a cherry-pick of:
r212948 - fixes a small issue with atomic calls
Change-Id: Ib97bd980b59f18142a69506400911a6009d9df18
diff --git a/lib/MC/MCAnalysis/MCFunction.cpp b/lib/MC/MCAnalysis/MCFunction.cpp
new file mode 100644
index 0000000..4e09d1a
--- /dev/null
+++ b/lib/MC/MCAnalysis/MCFunction.cpp
@@ -0,0 +1,76 @@
+//===-- lib/MC/MCFunction.cpp -----------------------------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/MC/MCAnalysis/MCFunction.h"
+#include "llvm/MC/MCAnalysis/MCAtom.h"
+#include "llvm/MC/MCAnalysis/MCModule.h"
+#include <algorithm>
+
+using namespace llvm;
+
+// MCFunction
+
+MCFunction::MCFunction(StringRef Name, MCModule *Parent)
+ : Name(Name), ParentModule(Parent)
+{}
+
+MCBasicBlock &MCFunction::createBlock(const MCTextAtom &TA) {
+ std::unique_ptr<MCBasicBlock> MCBB(new MCBasicBlock(TA, this));
+ Blocks.push_back(std::move(MCBB));
+ return *Blocks.back();
+}
+
+MCBasicBlock *MCFunction::find(uint64_t StartAddr) {
+ for (const_iterator I = begin(), E = end(); I != E; ++I)
+ if ((*I)->getInsts()->getBeginAddr() == StartAddr)
+ return I->get();
+ return nullptr;
+}
+
+const MCBasicBlock *MCFunction::find(uint64_t StartAddr) const {
+ return const_cast<MCFunction *>(this)->find(StartAddr);
+}
+
+// MCBasicBlock
+
+MCBasicBlock::MCBasicBlock(const MCTextAtom &Insts, MCFunction *Parent)
+ : Insts(&Insts), Parent(Parent) {
+ getParent()->getParent()->trackBBForAtom(&Insts, this);
+}
+
+void MCBasicBlock::addSuccessor(const MCBasicBlock *MCBB) {
+ if (!isSuccessor(MCBB))
+ Successors.push_back(MCBB);
+}
+
+bool MCBasicBlock::isSuccessor(const MCBasicBlock *MCBB) const {
+ return std::find(Successors.begin(), Successors.end(),
+ MCBB) != Successors.end();
+}
+
+void MCBasicBlock::addPredecessor(const MCBasicBlock *MCBB) {
+ if (!isPredecessor(MCBB))
+ Predecessors.push_back(MCBB);
+}
+
+bool MCBasicBlock::isPredecessor(const MCBasicBlock *MCBB) const {
+ return std::find(Predecessors.begin(), Predecessors.end(),
+ MCBB) != Predecessors.end();
+}
+
+void MCBasicBlock::splitBasicBlock(MCBasicBlock *SplitBB) {
+ assert(Insts->getEndAddr() + 1 == SplitBB->Insts->getBeginAddr() &&
+ "Splitting unrelated basic blocks!");
+ SplitBB->addPredecessor(this);
+ assert(SplitBB->Successors.empty() &&
+ "Split basic block shouldn't already have successors!");
+ SplitBB->Successors = Successors;
+ Successors.clear();
+ addSuccessor(SplitBB);
+}