[llvm-bugs] [Bug 30633] New: [X86][FMA] Add support for vfmaddsub/vfmsubadd lowering

[via llvm-bugs]

https://llvm.org/bugs/show_bug.cgi?id=30633

            Bug ID: 30633
           Summary: [X86][FMA] Add support for vfmaddsub/vfmsubadd
                    lowering
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: normal
          Priority: P
         Component: Backend: X86
          Assignee: unassignedbugs at nondot.org
          Reporter: llvm-dev at redking.me.uk
                CC: llvm-bugs at lists.llvm.org
            Blocks: 30624
    Classification: Unclassified

We already have support for lowering to addsubpd/addsubps via
combineShuffleToAddSub and LowerToAddSub - it just needs tweaking to support
the FMA variants.

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