[Bug driver/50876] [4.7 Regression] unrecognized command line option '-Zmultiply_defined suppress regressions for lto.exp on x86_64-apple-darwin11

["iains at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50876

--- Comment #16 from Iain Sandoe <iains at gcc dot gnu.org> 2011-10-27 20:31:31 UTC ---
on i686-d9 I can reproduce the second fail from the c/l  (which possibly means
it's unrelated or just exposed by the changes):

$ gdb --args gcc/lto1 -fPIC -quiet -dumpdir ./ -dumpbase
gcc-dg-lto-20100720-4-11.exe.ltrans0 -mmacosx-version-min=10.5.8 -m32
-mtune=core2 -auxbase-strip gcc-dg-lto-20100720-4-11.exe.ltrans0.ltrans.o
-version -fltrans @/var/folders/OW/OW-PGOtgHbKakssxFpJpkU++-0E/-Tmp-//cchFpn9m
-o gcc-dg-lto-20100720-4-11.exe.ltrans0.s

....

/GCC/gcc-live-trunk/gcc/testsuite/gcc.dg/lto/20100720-4_0.c:8:1: error:
mismatching comparison operand types
char
unsigned char
D.2216_3 = D.2215_2 != 45;


Breakpoint 1, internal_error (gmsgid=0xf4675a "verify_gimple failed") at
/GCC/gcc-live-trunk/gcc/diagnostic.c:843
843       va_start (ap, gmsgid);
(gdb) bt
#0  internal_error (gmsgid=0xf4675a "verify_gimple failed") at
/GCC/gcc-live-trunk/gcc/diagnostic.c:843
#1  0x00a3b488 in verify_gimple_in_cfg (fn=0x42411228) at
/GCC/gcc-live-trunk/gcc/tree-cfg.c:4491
#2  0x00c8a3ae in verify_ssa (check_modified_stmt=1 '\001') at
/GCC/gcc-live-trunk/gcc/tree-ssa.c:923
#3  0x009046bc in execute_function_todo (data=0x4004) at
/GCC/gcc-live-trunk/gcc/passes.c:1710
#4  0x00904089 in do_per_function (callback=0x904541 <execute_function_todo>,
data=0x4004) at /GCC/gcc-live-trunk/gcc/passes.c:1548
#5  0x009047dd in execute_todo (flags=16388) at
/GCC/gcc-live-trunk/gcc/passes.c:1741
#6  0x00904c8b in execute_one_ipa_transform_pass (node=0x4240c47c,
ipa_pass=0x101f660) at /GCC/gcc-live-trunk/gcc/passes.c:1919
#7  0x00904d61 in execute_all_ipa_transforms () at
/GCC/gcc-live-trunk/gcc/passes.c:1944
#8  0x00ae91c6 in tree_rest_of_compilation (fndecl=0x424b7500) at
/GCC/gcc-live-trunk/gcc/tree-optimize.c:413
#9  0x0048bda9 in cgraph_expand_function (node=0x4240c47c) at
/GCC/gcc-live-trunk/gcc/cgraphunit.c:1819
#10 0x0048c250 in cgraph_output_in_order () at
/GCC/gcc-live-trunk/gcc/cgraphunit.c:1984
#11 0x0048cb58 in cgraph_optimize () at
/GCC/gcc-live-trunk/gcc/cgraphunit.c:2192
#12 0x0003d352 in lto_main () at /GCC/gcc-live-trunk/gcc/lto/lto.c:2973
#13 0x00a154d4 in compile_file () at /GCC/gcc-live-trunk/gcc/toplev.c:565
#14 0x00a181b4 in do_compile () at /GCC/gcc-live-trunk/gcc/toplev.c:1930
#15 0x00a18398 in toplev_main (argc=17, argv=0x41600230) at
/GCC/gcc-live-trunk/gcc/toplev.c:2006
#16 0x0004022f in main (argc=17, argv=0xbffff250) at
/GCC/gcc-live-trunk/gcc/main.c:36

(gdb) shell more /var/folders/OW/OW-PGOtgHbKakssxFpJpkU++-0E/-Tmp-//cchFpn9m
gcc-dg-lto-20100720-4-11.exe.ltrans0.o