[LLVMbugs] [Bug 1676] New: 140x slower compilation time vs gcc

bugzilla-daemon at cs.uiuc.edu bugzilla-daemon at cs.uiuc.edu
Mon Sep 17 21:52:18 PDT 2007


           Summary: 140x slower compilation time vs gcc
           Product: new-bugs
           Version: unspecified
          Platform: Macintosh
        OS/Version: MacOS X
            Status: NEW
          Severity: normal
          Priority: P2
         Component: new bugs
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: astrange at ithinksw.com
                CC: llvmbugs at cs.uiuc.edu

Created an attachment (id=1127)
 --> (http://llvm.org/bugs/attachment.cgi?id=1127)
testcase source

> time /usr/local/llvmgcc/bin/llvm-gcc -O3 -g -mdynamic-no-pic -march=nocona -mtune=nocona -c llvm-snow.i
683.139u 4.366s 11:46.76 97.2%  0+0k 0+19io 0pf+0w
> time gcc -O3 -g -mdynamic-no-pic -march=nocona -mtune=nocona -c llvm-snow.i
5.331u 0.257s 0:05.62 99.2%     0+0k 0+7io 0pf+0w

gcc version 4.0.1 LLVM (Apple Computer, Inc. build 2.0)
gcc version 4.0.1 (Apple Computer, Inc. build 5367)

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