[PATCH] D125280: [SCCP] Preserve Name when converting SExt->ZExt.

[Craig Topper via Phabricator via llvm-commits]

craig.topper created this revision.
craig.topper added reviewers: reames, spatel, efriedma.
Herald added subscribers: StephenFan, hiraditya.
Herald added a project: All.
craig.topper requested review of this revision.
Herald added a project: LLVM.

This makes the output IR more readable since we're doing a one to
one replacement.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D125280

Files:
  llvm/lib/Transforms/Scalar/SCCP.cpp


Index: llvm/lib/Transforms/Scalar/SCCP.cpp
===================================================================
--- llvm/lib/Transforms/Scalar/SCCP.cpp
+++ llvm/lib/Transforms/Scalar/SCCP.cpp
@@ -164,6 +164,7 @@
         continue;
       if (IV.getConstantRange().isAllNonNegative()) {
         auto *ZExt = new ZExtInst(ExtOp, Inst.getType(), "", &Inst);
+        ZExt->takeName(&Inst);
         InsertedValues.insert(ZExt);
         Inst.replaceAllUsesWith(ZExt);
         Solver.removeLatticeValueFor(&Inst);


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