SCEVExpander: give new insts a name that identifies the reponsible pass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133992 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/ScalarEvolutionExpander.cpp b/lib/Analysis/ScalarEvolutionExpander.cpp
index 0549935..b91d39b 100644
--- a/lib/Analysis/ScalarEvolutionExpander.cpp
+++ b/lib/Analysis/ScalarEvolutionExpander.cpp
@@ -936,7 +936,8 @@
BasicBlock *Header = L->getHeader();
Builder.SetInsertPoint(Header, Header->begin());
pred_iterator HPB = pred_begin(Header), HPE = pred_end(Header);
- PHINode *PN = Builder.CreatePHI(ExpandTy, std::distance(HPB, HPE), "lsr.iv");
+ PHINode *PN = Builder.CreatePHI(ExpandTy, std::distance(HPB, HPE),
+ Twine(Label) + ".iv");
rememberInstruction(PN);
// Create the step instructions and populate the PHI.
@@ -972,8 +973,8 @@
}
} else {
IncV = isNegative ?
- Builder.CreateSub(PN, StepV, "lsr.iv.next") :
- Builder.CreateAdd(PN, StepV, "lsr.iv.next");
+ Builder.CreateSub(PN, StepV, Twine(Label) + ".iv.next") :
+ Builder.CreateAdd(PN, StepV, Twine(Label) + ".iv.next");
rememberInstruction(IncV);
}
PN->addIncoming(IncV, Pred);