Revert "Remove Debug metadata from copied instruction to prevent Module verification failure"

This reverts commit r309490 as it triggers on our AOSP buildbut error messages
of the form:

inlinable function call in a function with debug info must have a !dbg location

llvm-svn: 309556

1 files changed, 0 insertions, 8 deletions

diff --git a/polly/lib/CodeGen/BlockGenerators.cpp b/polly/lib/CodeGen/BlockGenerators.cpp
index b226bd964a24..5b01f9508929 100644
--- a/polly/lib/CodeGen/BlockGenerators.cpp
+++ b/polly/lib/CodeGen/BlockGenerators.cpp
@@ -234,14 +234,6 @@ void BlockGenerator::copyInstScalar(ScopStmt &Stmt, Instruction *Inst,
     NewInst->replaceUsesOfWith(OldOperand, NewOperand);
   }
 
-  // When copying the instruction onto the Module meant for the GPU,
-  // debug metadata attached to an instruction causes all related
-  // metadata to be pulled into the Module. This includes the DICompileUnit,
-  // which will not be listed in llvm.dbg.cu of the Module since the Module
-  // doesn't contain one. This fails the verification of the Module and the
-  // subsequent generation of the ASM string.
-  NewInst->setDebugLoc(llvm::DebugLoc());
-
   Builder.Insert(NewInst);
   BBMap[Inst] = NewInst;