[Bug lto/50468] New: ICE in force_type_die when compiling binutils with -flto -O[12]

[matt at use dot net]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50468

             Bug #: 50468
           Summary: ICE in force_type_die when compiling binutils with
                    -flto -O[12]
    Classification: Unclassified
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: major
          Priority: P3
         Component: lto
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: matt@use.net


Got this when building binutils-2.21.53.20110810 from source using g++-4.6.real
(Ubuntu/Linaro 4.6.1-9ubuntu3) or g++-4.7.0 20110914 on Ubuntu 11.10 amd64:

g++ -W -Wall    -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -frandom-seed=ld-new
-g -flto -O2  -Wl,-Bsymbolic-functions -o ld-new main.o i386.o x86_64.o sparc.o
powerpc.o arm.o arm-reloc-property.o libgold.a ../libiberty/libiberty.a   -ldl
-lz -lm
incremental.o (symbol from plugin): warning: memset used with constant zero
length parameter; this could be due to transposed parameters
In member function ‘__base_ctor ’:
lto1: internal compiler error: in force_type_die, at dwarf2out.c:21022



Interestingly, changing -O2 to -O1 introduces this variation:

incremental.o (symbol from plugin): warning: memset used with constant zero
length parameter; this could be due to transposed parameters
In file included from ../../gold/incremental.h:5152:0,
                 from :4601:
../../gold/icf.h: In member function ‘__base_dtor ’:
../../gold/icf.h:62:5: internal compiler error: in force_type_die, at
dwarf2out.c:21022