[PATCH] D152181: [InstCombine] Remove deadcode in `(icmp SignTest(shl/shr X))`; NFC

[Noah Goldstein via Phabricator via llvm-commits]

goldstein.w.n created this revision.
goldstein.w.n added reviewers: nikic, spatel.
Herald added subscribers: StephenFan, hiraditya.
Herald added a project: All.
goldstein.w.n requested review of this revision.
Herald added a project: LLVM.
Herald added a subscriber: llvm-commits.

This is dead as of: D145341 <https://reviews.llvm.org/D145341>


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D152181

Files:
  llvm/lib/Transforms/InstCombine/InstCombineCompares.cpp


Index: llvm/lib/Transforms/InstCombine/InstCombineCompares.cpp
===================================================================
--- llvm/lib/Transforms/InstCombine/InstCombineCompares.cpp
+++ llvm/lib/Transforms/InstCombine/InstCombineCompares.cpp
@@ -2254,7 +2254,7 @@
     // If this is a signed comparison to 0 and the shift is sign preserving,
     // use the shift LHS operand instead; isSignTest may change 'Pred', so only
     // do that if we're sure to not continue on in this function.
-    if (isSignTest(Pred, C))
+    if (0 && isSignTest(Pred, C))
       return new ICmpInst(Pred, X, Constant::getNullValue(ShType));
   }
 


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