[llvm] r303704 - [LIR] Use the newly `getRecurrenceVar()` helper. NFCI.
Davide Italiano via llvm-commits
llvm-commits at lists.llvm.org
Tue May 23 16:51:55 PDT 2017
Author: davide
Date: Tue May 23 18:51:54 2017
New Revision: 303704
URL: http://llvm.org/viewvc/llvm-project?rev=303704&view=rev
Log:
[LIR] Use the newly `getRecurrenceVar()` helper. NFCI.
Modified:
llvm/trunk/lib/Transforms/Scalar/LoopIdiomRecognize.cpp
Modified: llvm/trunk/lib/Transforms/Scalar/LoopIdiomRecognize.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Scalar/LoopIdiomRecognize.cpp?rev=303704&r1=303703&r2=303704&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/Scalar/LoopIdiomRecognize.cpp (original)
+++ llvm/trunk/lib/Transforms/Scalar/LoopIdiomRecognize.cpp Tue May 23 18:51:54 2017
@@ -1139,8 +1139,8 @@ static bool detectPopcountIdiom(Loop *Cu
if (!Inc || !Inc->isOne())
continue;
- PHINode *Phi = dyn_cast<PHINode>(Inst->getOperand(0));
- if (!Phi || Phi->getParent() != LoopEntry)
+ PHINode *Phi = getRecurrenceVar(Inst->getOperand(0), Inst, LoopEntry);
+ if (!Phi)
continue;
// Check if the result of the instruction is live of the loop.
@@ -1255,8 +1255,8 @@ static bool detectCTLZIdiom(Loop *CurLoo
if (!Inc || !Inc->isOne())
continue;
- PHINode *Phi = dyn_cast<PHINode>(Inst->getOperand(0));
- if (!Phi || Phi->getParent() != LoopEntry)
+ PHINode *Phi = getRecurrenceVar(Inst->getOperand(0), Inst, LoopEntry);
+ if (!Phi)
continue;
CntInst = Inst;
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