[llvm-bugs] [Bug 27242] New: [PPC] Missing optimization opportunity for VMS loads

via llvm-bugs llvm-bugs at lists.llvm.org
Wed Apr 6 06:26:09 PDT 2016


            Bug ID: 27242
           Summary: [PPC] Missing optimization opportunity for VMS loads
           Product: new-bugs
           Version: trunk
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: normal
          Priority: P
         Component: new bugs
          Assignee: unassignedbugs at nondot.org
          Reporter: amehsan at ca.ibm.com
                CC: llvm-bugs at lists.llvm.org
    Classification: Unclassified

With this patch http://reviews.llvm.org/D18562 the following testcase:
test/CodeGen/PowerPC/unal-altivec.ll generates code with an extra VMX load.

I believe (but has not yet confirmed) that VMX load and stores are not used
frequently on processors after Power 7, so this should be low priority.

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