[llvm-commits] [llvm] r130880 - /llvm/trunk/lib/Transforms/Scalar/JumpThreading.cpp

[Devang Patel]

Author: dpatel
Date: Wed May  4 17:48:19 2011
New Revision: 130880

URL: http://llvm.org/viewvc/llvm-project?rev=130880&view=rev
Log:
Preserve line number information while threading jumps.

Modified:
    llvm/trunk/lib/Transforms/Scalar/JumpThreading.cpp

Modified: llvm/trunk/lib/Transforms/Scalar/JumpThreading.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Scalar/JumpThreading.cpp?rev=130880&r1=130879&r2=130880&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/Scalar/JumpThreading.cpp (original)
+++ llvm/trunk/lib/Transforms/Scalar/JumpThreading.cpp Wed May  4 17:48:19 2011
@@ -929,9 +929,10 @@
   if (UnavailablePred) {
     assert(UnavailablePred->getTerminator()->getNumSuccessors() == 1 &&
            "Can't handle critical edge here!");
-    Value *NewVal = new LoadInst(LoadedPtr, LI->getName()+".pr", false,
+    LoadInst *NewVal = new LoadInst(LoadedPtr, LI->getName()+".pr", false,
                                  LI->getAlignment(),
                                  UnavailablePred->getTerminator());
+    NewVal->setDebugLoc(LI->getDebugLoc());
     AvailablePreds.push_back(std::make_pair(UnavailablePred, NewVal));
   }
 
@@ -944,6 +945,7 @@
   PHINode *PN = PHINode::Create(LI->getType(), std::distance(PB, PE), "",
                                 LoadBB->begin());
   PN->takeName(LI);
+  PN->setDebugLoc(LI->getDebugLoc());
 
   // Insert new entries into the PHI for each predecessor.  A single block may
   // have multiple entries here.
@@ -1375,7 +1377,8 @@
 
   // We didn't copy the terminator from BB over to NewBB, because there is now
   // an unconditional jump to SuccBB.  Insert the unconditional jump.
-  BranchInst::Create(SuccBB, NewBB);
+  BranchInst *NewBI =BranchInst::Create(SuccBB, NewBB);
+  NewBI->setDebugLoc(BB->getTerminator()->getDebugLoc());
 
   // Check to see if SuccBB has PHI nodes. If so, we need to add entries to the
   // PHI nodes for NewBB now.