[llvm-commits] [llvm] r81360 - in /llvm/trunk/lib: CodeGen/UnreachableBlockElim.cpp Transforms/Utils/BreakCriticalEdges.cpp
Andreas Neustifter
astifter-llvm at gmx.at
Wed Sep 9 10:53:39 PDT 2009
Author: astifter
Date: Wed Sep 9 12:53:39 2009
New Revision: 81360
URL: http://llvm.org/viewvc/llvm-project?rev=81360&view=rev
Log:
Preserve ProfileInfo.
Modified:
llvm/trunk/lib/CodeGen/UnreachableBlockElim.cpp
llvm/trunk/lib/Transforms/Utils/BreakCriticalEdges.cpp
Modified: llvm/trunk/lib/CodeGen/UnreachableBlockElim.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/UnreachableBlockElim.cpp?rev=81360&r1=81359&r2=81360&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/UnreachableBlockElim.cpp (original)
+++ llvm/trunk/lib/CodeGen/UnreachableBlockElim.cpp Wed Sep 9 12:53:39 2009
@@ -26,6 +26,7 @@
#include "llvm/Function.h"
#include "llvm/Pass.h"
#include "llvm/Type.h"
+#include "llvm/Analysis/ProfileInfo.h"
#include "llvm/CodeGen/MachineDominators.h"
#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/MachineModuleInfo.h"
@@ -44,6 +45,10 @@
public:
static char ID; // Pass identification, replacement for typeid
UnreachableBlockElim() : FunctionPass(&ID) {}
+
+ virtual void getAnalysisUsage(AnalysisUsage &AU) const {
+ AU.addPreserved<ProfileInfo>();
+ }
};
}
char UnreachableBlockElim::ID = 0;
@@ -79,8 +84,11 @@
}
// Actually remove the blocks now.
- for (unsigned i = 0, e = DeadBlocks.size(); i != e; ++i)
+ ProfileInfo *PI = getAnalysisIfAvailable<ProfileInfo>();
+ for (unsigned i = 0, e = DeadBlocks.size(); i != e; ++i) {
+ if (PI) PI->removeBlock(DeadBlocks[i]);
DeadBlocks[i]->eraseFromParent();
+ }
return DeadBlocks.size();
}
Modified: llvm/trunk/lib/Transforms/Utils/BreakCriticalEdges.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Utils/BreakCriticalEdges.cpp?rev=81360&r1=81359&r2=81360&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/Utils/BreakCriticalEdges.cpp (original)
+++ llvm/trunk/lib/Transforms/Utils/BreakCriticalEdges.cpp Wed Sep 9 12:53:39 2009
@@ -21,6 +21,7 @@
#include "llvm/Transforms/Utils/BasicBlockUtils.h"
#include "llvm/Analysis/Dominators.h"
#include "llvm/Analysis/LoopInfo.h"
+#include "llvm/Analysis/ProfileInfo.h"
#include "llvm/Function.h"
#include "llvm/Instructions.h"
#include "llvm/Type.h"
@@ -44,6 +45,7 @@
AU.addPreserved<DominatorTree>();
AU.addPreserved<DominanceFrontier>();
AU.addPreserved<LoopInfo>();
+ AU.addPreserved<ProfileInfo>();
// No loop canonicalization guarantees are broken by this pass.
AU.addPreservedID(LoopSimplifyID);
@@ -338,5 +340,10 @@
}
}
+ // Update ProfileInfo if it is around.
+ if (ProfileInfo *PI = P->getAnalysisIfAvailable<ProfileInfo>()) {
+ PI->splitEdge(TIBB,DestBB,NewBB,MergeIdenticalEdges);
+ }
+
return NewBB;
}
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