[llvm-commits] [llvm] r130450 - /llvm/trunk/lib/Transforms/Scalar/Reassociate.cpp

[Devang Patel]

Author: dpatel
Date: Thu Apr 28 17:48:14 2011
New Revision: 130450

URL: http://llvm.org/viewvc/llvm-project?rev=130450&view=rev
Log:
Preserve line number information.

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

Modified: llvm/trunk/lib/Transforms/Scalar/Reassociate.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Scalar/Reassociate.cpp?rev=130450&r1=130449&r2=130450&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/Scalar/Reassociate.cpp (original)
+++ llvm/trunk/lib/Transforms/Scalar/Reassociate.cpp Thu Apr 28 17:48:14 2011
@@ -217,6 +217,7 @@
   ValueRankMap.erase(Neg);
   Res->takeName(Neg);
   Neg->replaceAllUsesWith(Res);
+  Res->setDebugLoc(Neg->getDebugLoc());
   Neg->eraseFromParent();
   return Res;
 }
@@ -506,6 +507,7 @@
   // Everyone now refers to the add instruction.
   ValueRankMap.erase(Sub);
   Sub->replaceAllUsesWith(New);
+  New->setDebugLoc(Sub->getDebugLoc());
   Sub->eraseFromParent();
 
   DEBUG(dbgs() << "Negated: " << *New << '\n');
@@ -531,6 +533,7 @@
     ValueRankMap.erase(Shl);
     Mul->takeName(Shl);
     Shl->replaceAllUsesWith(Mul);
+    Mul->setDebugLoc(Shl->getDebugLoc());
     Shl->eraseFromParent();
     return Mul;
   }
@@ -1052,6 +1055,8 @@
     // eliminate it.
     DEBUG(dbgs() << "Reassoc to scalar: " << *V << '\n');
     I->replaceAllUsesWith(V);
+    if (Instruction *VI = dyn_cast<Instruction>(V))
+      VI->setDebugLoc(I->getDebugLoc());
     RemoveDeadBinaryOp(I);
     ++NumAnnihil;
     return V;
@@ -1075,6 +1080,8 @@
     // This expression tree simplified to something that isn't a tree,
     // eliminate it.
     I->replaceAllUsesWith(Ops[0].Op);
+    if (Instruction *OI = dyn_cast<Instruction>(Ops[0].Op))
+      OI->setDebugLoc(I->getDebugLoc());
     RemoveDeadBinaryOp(I);
     return Ops[0].Op;
   }