nemanjai added inline comments.

================
Comment at: clang/docs/ClangCommandLineReference.rst:3566
 
+Control the CR-bit tracking feature on PowerPC. ``-mcrbits`` (the enablement 
of CR-bit tracking support) is the default for POWER8 and above.
+
----------------
```
... is the default for POWER8 and above as well as for all other CPUs when 
optimization is applied (-O2 and above).
```
But please check if it is also applied at -O1 and correct that statement 
accordingly.


================
Comment at: llvm/test/CodeGen/PowerPC/fast-isel-fcmp-nan.ll:5
 ; CHECK-LABEL: TestULT:
-; CHECK: xscmpudp
+; CHECK: fcmpu
 ; CHECK: blr
----------------
Why do we not emit the VSX instructions here any longer? How are crbits related?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D124060/new/

https://reviews.llvm.org/D124060

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