[llvm-bugs] [Bug 37406] New: Merge r330264 and other related fixes for PR37100 into the 6.0 branch

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=37406

            Bug ID: 37406
           Summary: Merge r330264 and other related fixes for PR37100 into
                    the 6.0 branch
           Product: new-bugs
           Version: 6.0
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: new bugs
          Assignee: unassignedbugs at nondot.org
          Reporter: dimitry at andric.com
                CC: llvm-bugs at lists.llvm.org

Please merge the fix for bug 37100 and prerequisite fixes into the 6.0 branch:

* https://reviews.llvm.org/rL325446: [X86] Add 'sahf' CPU feature to frontend
* https://reviews.llvm.org/rL328944: [x86] Expose more of the condition
conversion routines in the public API for X86's instruction information.
* https://reviews.llvm.org/rL329414: [X86] Merge itineraries for CLC, CMC, and
STC.
* https://reviews.llvm.org/rL329657: [x86] Introduce a pass to begin more
systematically fixing Phttps://reviews.llvm.org/rL36028 and similar issues.
* https://reviews.llvm.org/rL329673: [x86] Model the direction flag (DF)
separately from the rest ofEFLAGS.
* https://reviews.llvm.org/rL329771: [X86] In X86FlagsCopyLowering, when
rewriting a memory setcc we need to emit an explicit MOV8mr instruction.
* https://reviews.llvm.org/rL330264: [x86] Fix PR37100 by teaching the EFLAGS
copy lowering to rewrite uses across basic blocks in the limited cases where it
is very straight forward to do so.

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