[Bug lto/48433] New: lto1: internal compiler error: in lto_wpa_write_files, at lto/lto.c:1518

[vincenzo.innocente at cern dot ch]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48433

           Summary: lto1: internal compiler error: in lto_wpa_write_files,
                    at lto/lto.c:1518
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: lto
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: vincenzo.innocente@cern.ch


I'm having several shared library links failing with this error when compiling
with -flto -fuse-linker-plugin
see below.
At the moment the librabry giving problems are complex and I've not yet manage
to reproduce the error with a simple test-case.
Could you suggest anything I can do to provide you with just few
(intermidiate?) files to reproduce the problem just at "lto1" level?

 /usr/local/libexec/gcc/x86_64-unknown-linux-gnu/4.6.1/lto1 -quiet -dumpdir
tmp/slc5_amd64_gcc451/src/TrackingTools/KalmanUpdators/src/TrackingToolsKalmanUpdators/
-dumpbase libTrackingToolsKalmanUpdators.so.wpa -mavx -mtune=generic
-march=x86-64 -auxbase Chi2MeasurementEstimator -Ofast -pedantic
-Werror=overflow -Werror=array-bounds -Werror=format-contains-nul
-Werror=type-limits -Wall -Wno-non-template-friend -Wno-long-long -Wreturn-type
-Wunused -Wparentheses -Wno-deprecated -Werror=return-type
-Werror=missing-braces -Werror=unused-value -Werror=address -Werror=format
-Werror=sign-compare -Werror=write-strings -ansi -std=c++0x -version
-ftree-vectorize -felide-constructors -fmessage-length=0 -ftemplate-depth=300
-fdiagnostics-show-option -fuse-linker-plugin -fPIC
-fltrans-output-list=/tmp/innocent/ccMqAikO.ltrans.out -fwpa
-fresolution=/tmp/innocent/ccAZ5YzQ.res @/tmp/innocent/ccDIvhdO
GNU GIMPLE (GCC) version 4.6.1 20110325 (prerelease) (x86_64-unknown-linux-gnu)
    compiled by GNU C version 4.6.1 20110325 (prerelease), GMP version 4.3.2,
MPFR version 2.4.2, MPC version 0.8.1
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
GNU GIMPLE (GCC) version 4.6.1 20110325 (prerelease) (x86_64-unknown-linux-gnu)
    compiled by GNU C version 4.6.1 20110325 (prerelease), GMP version 4.3.2,
MPFR version 2.4.2, MPC version 0.8.1
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
lto1: internal compiler error: in lto_wpa_write_files, at lto/lto.c:1518