[PATCH] D42770: [X86] Don't emit KTEST instructions unless only the Z flag is being used

[Craig Topper via Phabricator via llvm-commits]

craig.topper added inline comments.


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Comment at: lib/Target/X86/X86ISelLowering.cpp:18133
 
+// Try to select this as a KTEST+SETCC if possible.
+static SDValue EmitKTEST(SDValue Op0, SDValue Op1, ISD::CondCode CC,
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zvi wrote:
> Which tests cover this?
The tests that switched from ktest to kortest in D42772


Repository:
  rL LLVM

https://reviews.llvm.org/D42770