[Bug lto/44463] New: whopr does not work with weak functions

["andi-gcc at firstfloor dot org" <gcc-bugzilla at gcc dot gnu dot org>]

Hit this while attempting to compile a large code base with WHOPR:

tweak1.c:
void y(void) { printf("y\n"); } 
void x(void) __attribute__((weak, alias("y"))); 

tweak2.c:
void x(void) { printf("strong\n"); }

tweak3.c:
extern void x(void);

int main(void) { x(); return 0; }

Compile  with

gcc -fwhopr -c -O2 tweak1.c
gcc -fwhopr -c -O2 tweak2.c
gcc -fwhopr -c -O2 tweak3.c
gcc -fwhopr tweak[123].o
/tmp/ccGG7BOa.ltrans1.ltrans.o: In function `x':
ccGG7BOa.ltrans1.o:(.text+0x0): multiple definition of `x'
/tmp/ccGG7BOa.ltrans0.ltrans.o:ccGG7BOa.ltrans0.o:(.text+0x0): first defined
here
collect2: ld returned 1 exit status

Without -fwhopr it works

Version:
Target: x86_64-unknown-linux-gnu
Configured with: ../gcc/configure --prefix=/pkg/gcc-4.6-100607
--enable-checking=release --enable-languages=c,c++ --disable-nls --enable-lto
--enable-gold --with-plugin-ld=/usr/local/bin/gold
--with-elf-include=/usr/include/libelf
Thread model: posix
gcc version 4.6.0 20100607 (experimental) (GCC)


-- 
           Summary: whopr does not work with weak functions
           Product: gcc
           Version: lto
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: lto
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: andi-gcc at firstfloor dot org
  GCC host triplet: x86_64-linux
GCC target triplet: x86_64-linux


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44463