[PATCH] D23134: Make cltz and cttz zero undef when the operand cannot be zero in InstCombine

[David Majnemer via llvm-commits]

majnemer added inline comments.

================
Comment at: lib/Transforms/InstCombine/InstCombineCalls.cpp:1143
@@ +1142,3 @@
+      IC.Worklist.Add(&II);
+      II.setOperand(1, ConstantInt::getAllOnesValue(Op1->getType()));
+    }
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I'd use IRBuilder's `getTrue` here.


https://reviews.llvm.org/D23134