Random failures on Linux 64bit platforms

This is just a hand-made report of the git-head issue.

----

From few weeks ago, dmd test suite sometimes fails on Linux 64bit platforms
(both 32_64 and 64_64).

It occurs with the combination of -O and -fPIC. http://d.puremagic.com/test-results/test_data.ghtml?projectid=1&runid=50369&logid=1

    Creating output directory: test_results
    Building d_do_test tool
    OS: posix
    Creating output directory: generated
    Building d_do_test tool
    OS: posix
    Running compilable tests
    Running runnable tests
    Running fail compilation tests
     ... fail_compilation/bug4283.d     ()

    [snip]

     ... runnable/test42.d              (-inline -release -gc -O -fPIC)
    Test failed.  The logged output:
    ../src/dmd -m64 -Irunnable   -odgenerated/runnable
-ofgenerated/runnable/test42_0 runnable/test42.d
    ../src/dmd -m64 -Irunnable  -inline -odgenerated/runnable
-ofgenerated/runnable/test42_1 runnable/test42.d
    ../src/dmd -m64 -Irunnable  -release -odgenerated/runnable
-ofgenerated/runnable/test42_2 runnable/test42.d
    ../src/dmd -m64 -Irunnable  -inline -release -odgenerated/runnable
-ofgenerated/runnable/test42_3 runnable/test42.d
    ../src/dmd -m64 -Irunnable  -gc -odgenerated/runnable
-ofgenerated/runnable/test42_4 runnable/test42.d
    ../src/dmd -m64 -Irunnable  -inline -gc -odgenerated/runnable
-ofgenerated/runnable/test42_5 runnable/test42.d
    ../src/dmd -m64 -Irunnable  -release -gc -odgenerated/runnable
-ofgenerated/runnable/test42_6 runnable/test42.d
    ../src/dmd -m64 -Irunnable  -inline -release -gc -odgenerated/runnable
-ofgenerated/runnable/test42_7 runnable/test42.d
    ../src/dmd -m64 -Irunnable  -O -odgenerated/runnable
-ofgenerated/runnable/test42_8 runnable/test42.d
    ../src/dmd -m64 -Irunnable  -inline -O -odgenerated/runnable
-ofgenerated/runnable/test42_9 runnable/test42.d
    ../src/dmd -m64 -Irunnable  -release -O -odgenerated/runnable
-ofgenerated/runnable/test42_10 runnable/test42.d
    ../src/dmd -m64 -Irunnable  -inline -release -O -odgenerated/runnable
-ofgenerated/runnable/test42_11 runnable/test42.d
    ../src/dmd -m64 -Irunnable  -gc -O -odgenerated/runnable
-ofgenerated/runnable/test42_12 runnable/test42.d
    ../src/dmd -m64 -Irunnable  -inline -gc -O -odgenerated/runnable
-ofgenerated/runnable/test42_13 runnable/test42.d
    ../src/dmd -m64 -Irunnable  -release -gc -O -odgenerated/runnable
-ofgenerated/runnable/test42_14 runnable/test42.d
    ../src/dmd -m64 -Irunnable  -inline -release -gc -O
-odgenerated/runnable -ofgenerated/runnable/test42_15 runnable/test42.d
    ../src/dmd -m64 -Irunnable  -fPIC -odgenerated/runnable
-ofgenerated/runnable/test42_16 runnable/test42.d
    ../src/dmd -m64 -Irunnable  -inline -fPIC -odgenerated/runnable
-ofgenerated/runnable/test42_17 runnable/test42.d
    ../src/dmd -m64 -Irunnable  -release -fPIC -odgenerated/runnable
-ofgenerated/runnable/test42_18 runnable/test42.d
    ../src/dmd -m64 -Irunnable  -inline -release -fPIC
-odgenerated/runnable -ofgenerated/runnable/test42_19 runnable/test42.d
    ../src/dmd -m64 -Irunnable  -gc -fPIC -odgenerated/runnable
-ofgenerated/runnable/test42_20 runnable/test42.d
    ../src/dmd -m64 -Irunnable  -inline -gc -fPIC -odgenerated/runnable
-ofgenerated/runnable/test42_21 runnable/test42.d
    ../src/dmd -m64 -Irunnable  -release -gc -fPIC -odgenerated/runnable
-ofgenerated/runnable/test42_22 runnable/test42.d
    ../src/dmd -m64 -Irunnable  -inline -release -gc -fPIC
-odgenerated/runnable -ofgenerated/runnable/test42_23 runnable/test42.d
    ../src/dmd -m64 -Irunnable  -O -fPIC -odgenerated/runnable
-ofgenerated/runnable/test42_24 runnable/test42.d
    success
    Not ported to x86-64 compatible varargs, yet.
    myInt int
    myBool bool
    i
    s
    C6test4211__T4T219TiZ1C
    C6test427test219FZv11__T4T219TiZ1C
    generated/runnable/test42_24
    core.exception.AssertError@test42(625): Assertion failure
    ----------------
    generated/runnable/test42_24(_d_assertm+0x26) [0x4ad8e2]
    generated/runnable/test42_24() [0x4aac23]
    generated/runnable/test42_24(void test42.test41()+0x41) [0x485b6d]
    generated/runnable/test42_24(_Dmain+0xc7) [0x48f0a3]
    generated/runnable/test42_24(extern (C) int rt.dmain2._d_run_main(int,
char**, extern (C) int function(char[][])*).void runAll().void
__lambda285()+0x18) [0x4b0520]
    generated/runnable/test42_24(extern (C) int rt.dmain2._d_run_main(int,
char**, extern (C) int function(char[][])*).void tryExec(scope void
delegate())+0x2a) [0x4afd42]
    generated/runnable/test42_24(extern (C) int rt.dmain2._d_run_main(int,
char**, extern (C) int function(char[][])*).void runAll()+0x37) [0x4b04d7]
    generated/runnable/test42_24(extern (C) int rt.dmain2._d_run_main(int,
char**, extern (C) int function(char[][])*).void tryExec(scope void
delegate())+0x2a) [0x4afd42]
    generated/runnable/test42_24(_d_run_main+0x1a3) [0x4afcc3]
    generated/runnable/test42_24(main+0x14) [0x4917f8]
    /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xed) [0x2b84efe0e30d]
    ----------------
    one
    two
    52
    9223372036854775807L
    18446744073709551615LU
    3
    0
    1
    2
    3
    4
    5
    6
    7
    8
    9
    s = foo
    s = test42.S35
    s = test42.S35
    s = 4855B4
    &x = 0x7fef00
    &s = 0x7fef10
    ~one
    ~two

    ==============================
    Test failed: expected rc == 0, exited with rc == 1

    make[1]: *** [generated/runnable/test42.d.out] Error 1
    make[1]: *** Waiting for unfinished jobs....
     ... runnable/test8182.d            (-inline -release -gc -O -fPIC)
     ... runnable/test7932.d            (-inline -release -gc -O -fPIC)
    make: *** [start_runnable_tests] Error 2

The earliest date of the occurrence is: http://d.puremagic.com/test-results/test_data.ghtml?projectid=1&runid=50328&logid=1

    Fetching updates to D-Programming-Language/dmd:
    Fetching origin
    From https://github.com/D-Programming-Language/dmd
     + 4cec471...2316b49 refs/pull/2502/head -> refs/pull/2502/head
 (forced update)
     + 3ef32f2...301d9e9 refs/pull/2502/merge -> refs/pull/2502/merge
 (forced update)

    Cloning source/D-Programming-Language/dmd.git into
master-50328-Linux_32_64/dmd, branch master
    Cloning into
/home/braddr/sandbox/d/d-tester/client/master-50328-Linux_32_64/dmd...
    done.
    Head commit:
    commit 66a38bb839f15d0744b603cc1484e223388644dd
    Merge: 2747184 9ddae72
    Author: Walter Bright <walter@walterbright.com>
    Date:   Wed Aug 28 00:28:43 2013 -0700

        Merge pull request #2500 from Ingrater/mslinker

        Fixed linker invocation when compiling dmd with visual studio

    Fetching updates to D-Programming-Language/druntime:
    Fetching origin

    Cloning source/D-Programming-Language/druntime.git into
master-50328-Linux_32_64/druntime, branch master
    Cloning into
/home/braddr/sandbox/d/d-tester/client/master-50328-Linux_32_64/druntime...
    done.
    Head commit:
    commit 7ad4524db2e83fc6dbca87fd82821c68a544b2d0
    Merge: 2c6c29b ae2c4df
    Author: Martin Nowak <code@dawg.eu>
    Date:   Tue Aug 27 12:56:32 2013 -0700

        Merge pull request #586 from redstar/freebsd

        Add FreeBSD header sys/elf.h

    Fetching updates to D-Programming-Language/phobos:
    Fetching origin
    From https://github.com/D-Programming-Language/phobos
     + 25552a6...3ec7e02 refs/pull/1224/merge -> refs/pull/1224/merge
 (forced update)
     + 0e888d4...9ea5d97 refs/pull/1390/merge -> refs/pull/1390/merge
 (forced update)

    Cloning source/D-Programming-Language/phobos.git into
master-50328-Linux_32_64/phobos, branch master
    Cloning into
/home/braddr/sandbox/d/d-tester/client/master-50328-Linux_32_64/phobos...
    done.
    Head commit:
    commit 40c6760019d5fb8aee4c317f5d86881fdd2d6cd8
    Merge: ca9accd 52cadf9
    Author: David Nadlinger <code@klickverbot.at>
    Date:   Wed Aug 28 01:35:15 2013 -0700

        Merge pull request #1082 from monarchdodra/emplace

        Fix emplace

Thanks.

Kenji Hara.

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