[LLVMbugs] [Bug 9430] New: 30% slowdown of telecomm-gsm with list-ilp on x86_64

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Tue Mar 8 15:09:18 PST 2011


           Summary: 30% slowdown of telecomm-gsm with list-ilp on x86_64
           Product: libraries
           Version: trunk
          Platform: PC
        OS/Version: All
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Backend: X86
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: atrick at apple.com
                CC: llvmbugs at cs.uiuc.edu

When list-ilp was enabled by default on 2011-03-07,
MultiSource/Benchmarks/MiBench/telecomm-gsm slowed down by 30% vs.
list-burr (it now takes 40% more time to execute).
The same regression occured in my own tests and in the x86_64 nightly builder.
The i386 nightly builder reported no change.

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