[llvm-bugs] [Bug 38057] New: DAGCombiner::visitREM - improve vector support

via llvm-bugs llvm-bugs at lists.llvm.org
Wed Jul 4 08:09:21 PDT 2018


            Bug ID: 38057
           Summary: DAGCombiner::visitREM - improve vector support
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Common Code Generator Code
          Assignee: unassignedbugs at nondot.org
          Reporter: llvm-dev at redking.me.uk
                CC: efriedma at codeaurora.org, lebedev.ri at gmail.com,
                    llvm-bugs at lists.llvm.org, spatel+llvm at rotateright.com

Expansion of SREM/UREM with X%C to the equivalent of X-X/C*C is only setup for
scalars/constant splats - we should be able to handle non-uniform (non-zero)
vectors as well.

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