------- Comment #45 from howarth at nitro dot med dot uc dot edu 2010-05-08 14:39 ------- Attached example failing testcase from lto.exp when using proposed patch from http://gcc.gnu.org/ml/gcc-patches/2010-05/msg00577.html on powerpc-apple-darwin9. In this testcase, the failure appears as... /Users/howarth/darwin_objdir/gcc/xgcc -B/Users/howarth/darwin_objdir/gcc/ --save-temps -O0 -fwhopr -c -o c_lto_20081111_0.o / Users/howarth/gcc/gcc/testsuite/gcc.dg/lto/20081111_0.c /Users/howarth/darwin_objdir/gcc/xgcc -B/Users/howarth/darwin_objdir/gcc/ --save-temps -O0 -fwhopr -c -o c_lto_20081111_0.o / Users/howarth/gcc/gcc/testsuite/gcc.dg/lto/20081111_0.c /Users/howarth/darwin_objdir/gcc/xgcc -B/Users/howarth/darwin_objdir/gcc/ c_lto_20081111_0.o c_lto_20081111_1.o -v --save-te mps -O0 -fwhopr -o gcc-dg-lto-20081111-01 Reading specs from /Users/howarth/darwin_objdir/gcc/specs COLLECT_GCC=/Users/howarth/darwin_objdir/gcc/xgcc COLLECT_LTO_WRAPPER=/Users/howarth/darwin_objdir/gcc/lto-wrapper Target: powerpc-apple-darwin9.8.0 Configured with: ../gcc/configure --prefix=/Users/howarth/dist --enable-languages=c --with-gmp=/sw --with-libiconv-prefix=/sw --with-ppl=/sw --with-cloog=/sw --with-mpc=/sw --with-system-zlib --x-includes=/usr/X11R6/include --x-libraries=/usr/X11R6/l ib --enable-lto --disable-bootstrap --enable-checking Thread model: posix gcc version 4.6.0 20100508 (experimental) (GCC) COMPILER_PATH=/Users/howarth/darwin_objdir/gcc/ LIBRARY_PATH=/Users/howarth/darwin_objdir/gcc/:/usr/lib/ COLLECT_GCC_OPTIONS='-mmacosx-version-min=10.5.8' '-B/Users/howarth/darwin_objdir/gcc/' '-v' '-save-temps' '-O0' '-fwhopr' '- o' 'gcc-dg-lto-20081111-01' /Users/howarth/darwin_objdir/gcc/collect2 -dynamic -arch ppc -macosx_version_min 10.5.8 -weak_reference_mismatches non-weak -o gcc-dg-lto-20081111-01 -lcrt1.10.5.o -L/Users/howarth/darwin_objdir/gcc c_lto_20081111_0.o c_lto_20081111_1.o -fwhopr -lgc c_s.10.5 -lgcc_ext.10.5 -lgcc -lSystemStubs -lSystem collect2 version 4.6.0 20100508 (experimental) (Darwin/PowerPC) /Users/howarth/darwin_objdir/gcc/collect-ld -dynamic -arch ppc -macosx_version_min 10.5.8 -weak_reference_mismatches non-weak -o gcc-dg-lto-20081111-01 -lcrt1.10.5.o -L/Users/howarth/darwin_objdir/gcc c_lto_20081111_0.o c_lto_20081111_1.o -lgcc_s.10. 5 -lgcc_ext.10.5 -lgcc -lSystemStubs -lSystem /sw/bin/gnm -n c_lto_20081111_0.o /sw/bin/gnm -n c_lto_20081111_1.o /Users/howarth/darwin_objdir/gcc/lto-wrapper /Users/howarth/darwin_objdir/gcc/xgcc -mmacosx-version-min=10.5.8 -B/Users/howar th/darwin_objdir/gcc/ -v -save-temps -O0 -fwhopr -o gcc-dg-lto-20081111-01 c_lto_20081111_0.o c_lto_20081111_1.o Reading specs from /Users/howarth/darwin_objdir/gcc/specs COLLECT_GCC=/Users/howarth/darwin_objdir/gcc/xgcc COLLECT_LTO_WRAPPER=/Users/howarth/darwin_objdir/gcc/lto-wrapper Target: powerpc-apple-darwin9.8.0 Configured with: ../gcc/configure --prefix=/Users/howarth/dist --enable-languages=c --with-gmp=/sw --with-libiconv-prefix=/sw --with-ppl=/sw --with-cloog=/sw --with-mpc=/sw --with-system-zlib --x-includes=/usr/X11R6/include --x-libraries=/usr/X11R6/l ib --enable-lto --disable-bootstrap --enable-checking Thread model: posix gcc version 4.6.0 20100508 (experimental) (GCC) COLLECT_GCC_OPTIONS='-combine' '-c' '-fltrans-output-list=/var/tmp//ccebD29J.ltrans.out' '-fwpa' '-mmacosx-version-min=10.5.8 ' '-B/Users/howarth/darwin_objdir/gcc/' '-v' '-save-temps' '-O0' '-dumpbase' 'gcc-dg-lto-20081111-01' '-dumpdir' 'c_lto_20081 111_0.o' /Users/howarth/darwin_objdir/gcc/lto1 -fPIC -quiet -dumpbase gcc-dg-lto-20081111-01 -dumpdir c_lto_20081111_0.o -mmacosx-ver sion-min=10.5.8 -auxbase c_lto_20081111_1 -O0 -version -fltrans-output-list=/var/tmp//ccebD29J.ltrans.out -fwpa @/var/tmp//cc LYFBxO GNU GIMPLE (GCC) version 4.6.0 20100508 (experimental) (powerpc-apple-darwin9.8.0) compiled by GNU C version 4.0.1 (Apple Inc. build 5493), GMP version 4.3.1, MPFR version 2.4.1, MPC version 0.8 GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096 GNU GIMPLE (GCC) version 4.6.0 20100508 (experimental) (powerpc-apple-darwin9.8.0) compiled by GNU C version 4.0.1 (Apple Inc. build 5493), GMP version 4.3.1, MPFR version 2.4.1, MPC version 0.8 GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096 COMPILER_PATH=/Users/howarth/darwin_objdir/gcc/:/Users/howarth/darwin_objdir/gcc/ LIBRARY_PATH=/Users/howarth/darwin_objdir/gcc/:/Users/howarth/darwin_objdir/gcc/:/usr/lib/:/usr/lib/ COLLECT_GCC_OPTIONS='-combine' '-c' '-fltrans-output-list=/var/tmp//ccebD29J.ltrans.out' '-fwpa' '-mmacosx-version-min=10.5.8 ' '-B/Users/howarth/darwin_objdir/gcc/' '-v' '-save-temps' '-O0' '-dumpbase' 'gcc-dg-lto-20081111-01' '-dumpdir' 'c_lto_20081 111_0.o' COLLECT_GCC_OPTIONS='-combine' '-c' '-fltrans-output-list=/var/tmp//ccebD29J.ltrans.out' '-fwpa' '-mmacosx-version-min=10.5.8 ' '-B/Users/howarth/darwin_objdir/gcc/' '-v' '-save-temps' '-O0' '-dumpbase' 'gcc-dg-lto-20081111-01' '-dumpdir' 'c_lto_20081 111_0.o' Reading specs from /Users/howarth/darwin_objdir/gcc/specs COLLECT_GCC=/Users/howarth/darwin_objdir/gcc/xgcc COLLECT_LTO_WRAPPER=/Users/howarth/darwin_objdir/gcc/lto-wrapper Target: powerpc-apple-darwin9.8.0 Configured with: ../gcc/configure --prefix=/Users/howarth/dist --enable-languages=c --with-gmp=/sw --with-libiconv-prefix=/sw --with-ppl=/sw --with-cloog=/sw --with-mpc=/sw --with-system-zlib --x-includes=/usr/X11R6/include --x-libraries=/usr/X11R6/l ib --enable-lto --disable-bootstrap --enable-checking Thread model: posix gcc version 4.6.0 20100508 (experimental) (GCC) COLLECT_GCC_OPTIONS='-c' '-mmacosx-version-min=10.5.8' '-B/Users/howarth/darwin_objdir/gcc/' '-v' '-save-temps' '-O0' '-fltra ns' '-o' 'c_lto_20081111_1.wpa.ltrans.o' /Users/howarth/darwin_objdir/gcc/lto1 -fPIC -quiet -dumpbase c_lto_20081111_1.wpa.o -mmacosx-version-min=10.5.8 -auxbase-str ip c_lto_20081111_1.wpa.ltrans.o -O0 -version -fltrans c_lto_20081111_1.wpa.o -o c_lto_20081111_1.wpa.s GNU GIMPLE (GCC) version 4.6.0 20100508 (experimental) (powerpc-apple-darwin9.8.0) compiled by GNU C version 4.0.1 (Apple Inc. build 5493), GMP version 4.3.1, MPFR version 2.4.1, MPC version 0.8 GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096 GNU GIMPLE (GCC) version 4.6.0 20100508 (experimental) (powerpc-apple-darwin9.8.0) compiled by GNU C version 4.0.1 (Apple Inc. build 5493), GMP version 4.3.1, MPFR version 2.4.1, MPC version 0.8 GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096 COLLECT_GCC_OPTIONS='-c' '-mmacosx-version-min=10.5.8' '-B/Users/howarth/darwin_objdir/gcc/' '-v' '-save-temps' '-O0' '-fltra ns' '-o' 'c_lto_20081111_1.wpa.ltrans.o' /Users/howarth/darwin_objdir/gcc/as -arch ppc -o c_lto_20081111_1.wpa.ltrans.o c_lto_20081111_1.wpa.s COMPILER_PATH=/Users/howarth/darwin_objdir/gcc/:/Users/howarth/darwin_objdir/gcc/ LIBRARY_PATH=/Users/howarth/darwin_objdir/gcc/:/Users/howarth/darwin_objdir/gcc/:/usr/lib/:/usr/lib/ COLLECT_GCC_OPTIONS='-c' '-mmacosx-version-min=10.5.8' '-B/Users/howarth/darwin_objdir/gcc/' '-v' '-save-temps' '-O0' '-fltra ns' '-o' 'c_lto_20081111_1.wpa.ltrans.o' COLLECT_GCC_OPTIONS='-c' '-mmacosx-version-min=10.5.8' '-B/Users/howarth/darwin_objdir/gcc/' '-v' '-save-temps' '-O0' '-fltra ns' '-o' 'c_lto_20081111_1.wpa.ltrans.o' /Users/howarth/darwin_objdir/gcc/collect-ld -dynamic -arch ppc -macosx_version_min 10.5.8 -weak_reference_mismatches non-weak -o gcc-dg-lto-20081111-01 -lcrt1.10.5.o -L/Users/howarth/darwin_objdir/gcc c_lto_20081111_1.wpa.ltrans.o -lgcc_s.10.5 -lgcc_ ext.10.5 -lgcc -lSystemStubs -lSystem Undefined symbols: "_main", referenced from: start in crt1.10.5.o ld: symbol(s) not found collect2: ld returned 1 exit status
-- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43729