[TRE] Simplify code with range-based loops and std::find.

No functional change intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@257261 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Transforms/Scalar/TailRecursionElimination.cpp b/lib/Transforms/Scalar/TailRecursionElimination.cpp
index 0e0b00df85bbc4418068d41e9c91c13812e8d394..4e84d72ae7bddb0e96ae5a44392b540cac579071 100644 (file)
--- a/lib/Transforms/Scalar/TailRecursionElimination.cpp
+++ b/lib/Transforms/Scalar/TailRecursionElimination.cpp
@@ -425,9 +425,7 @@ bool TailCallElim::runTRE(Function &F) {
   // with themselves.  Check to see if we did and clean up our mess if so.  This
   // occurs when a function passes an argument straight through to its tail
   // call.
-  for (unsigned i = 0, e = ArgumentPHIs.size(); i != e; ++i) {
-    PHINode *PN = ArgumentPHIs[i];
-
+  for (PHINode *PN : ArgumentPHIs) {
     // If the PHI Node is a dynamic constant, replace it with the value it is.
     if (Value *PNV = SimplifyInstruction(PN, F.getParent()->getDataLayout())) {
       PN->replaceAllUsesWith(PNV);
@@ -468,10 +466,7 @@ bool TailCallElim::CanMoveAboveCall(Instruction *I, CallInst *CI) {
   // return value of the call, it must only use things that are defined before
   // the call, or movable instructions between the call and the instruction
   // itself.
-  for (unsigned i = 0, e = I->getNumOperands(); i != e; ++i)
-    if (I->getOperand(i) == CI)
-      return false;
-  return true;
+  return std::find(I->op_begin(), I->op_end(), CI) == I->op_end();
 }
 
 /// Return true if the specified value is the same when the return would exit