[Bug lto/54702] [4.8 Regression] lto1: internal compiler error: verify_cgraph_node failed

[markus at trippelsdorf dot de]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54702

Markus Trippelsdorf <markus at trippelsdorf dot de> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |markus at trippelsdorf dot
                   |                            |de

--- Comment #4 from Markus Trippelsdorf <markus at trippelsdorf dot de> 2012-09-25 12:52:53 UTC ---
(In reply to comment #3)
> Created attachment 28266 [details]
> patch
> 
> builtins should simply not be in the assembler name hash (that fixes the
> issue).
> That of course makes things more inconsistent even from the middle-end side,
> but the asm hash forcefully computes assembler names (suspect for alloca, too).
> 
> Let's hope the rest of the middle-end doesn't care either way (and we don't
> end up streaming loads of duplicate cgraph nodes for builtins).

Guess Bug 54625 is dup of this issue.

With your patch I'm getting:

/var/tmp/gcc_build_dir/./gcc/xgcc -B/var/tmp/gcc_build_dir/./gcc/
-B/usr/x86_64-pc-linux-gnu/bin/ -B/usr/x86_64-pc-linux-gnu/lib/ -isystem
/usr/x86_64-pc-linux-gnu/include -isystem /usr/x86_64-pc-linux-gnu/sys-include
-DHAVE_CONFIG_H -I. -I/home/markus/gcc/libmudflap -Wall -ffunction-sections
-fdata-sections -march=native -O3 -pipe -MT mf-hooks1.lo -MD -MP -MF
.deps/mf-hooks1.Tpo -c /home/markus/gcc/libmudflap/mf-hooks1.c  -fPIC -DPIC -o
.libs/mf-hooks1.o
In file included from /home/markus/gcc/libmudflap/mf-hooks1.c:59:0:
/home/markus/gcc/libmudflap/mf-hooks1.c: In function ‘calloc’:
/home/markus/gcc/libmudflap/mf-impl.h:346:15: warning: typedef ‘__mf_fn_memset’
locally defined but not used [-Wunused-local-typedefs]
  typedef ty (*__mf_fn_ ## fname) (__VA_ARGS__);       \
               ^
/home/markus/gcc/libmudflap/mf-hooks1.c:139:3: note: in expansion of macro
'DECLARE'
   DECLARE(void *, memset, void *, int, size_t);
   ^
/home/markus/gcc/libmudflap/mf-hooks1.c: At top level:
/home/markus/gcc/libmudflap/mf-impl.h:340:5: error: ‘__wrap_malloc’ aliased to
undefined symbol ‘malloc’
 ret __wrap_ ## fname (__VA_ARGS__)                    \
     ^
/home/markus/gcc/libmudflap/mf-hooks1.c:98:1: note: in expansion of macro
'WRAPPER'
 WRAPPER(void *, malloc, size_t c)
 ^
/home/markus/gcc/libmudflap/mf-impl.h:342:5: error: ‘__real_alloca’ aliased to
undefined symbol ‘alloca’
 ret __real_ ## fname (__VA_ARGS__)                    \
     ^
/home/markus/gcc/libmudflap/mf-hooks1.c:551:1: note: in expansion of macro
'WRAPPER'
 WRAPPER(void *, alloca, size_t c)
 ^
/home/markus/gcc/libmudflap/mf-impl.h:340:5: error: ‘__wrap_alloca’ aliased to
undefined symbol ‘alloca’
 ret __wrap_ ## fname (__VA_ARGS__)                    \
     ^
/home/markus/gcc/libmudflap/mf-hooks1.c:551:1: note: in expansion of macro
'WRAPPER'
 WRAPPER(void *, alloca, size_t c)
 ^
/home/markus/gcc/libmudflap/mf-impl.h:342:5: error: ‘__real_free’ aliased to
undefined symbol ‘free’
 ret __real_ ## fname (__VA_ARGS__)                    \
     ^
/home/markus/gcc/libmudflap/mf-hooks1.c:233:1: note: in expansion of macro
'WRAPPER'
 WRAPPER(void, free, void *buf)
 ^
/home/markus/gcc/libmudflap/mf-impl.h:340:5: error: ‘__wrap_free’ aliased to
undefined symbol ‘free’
 ret __wrap_ ## fname (__VA_ARGS__)                    \
     ^
/home/markus/gcc/libmudflap/mf-hooks1.c:233:1: note: in expansion of macro
'WRAPPER'
 WRAPPER(void, free, void *buf)
 ^
/home/markus/gcc/libmudflap/mf-impl.h:342:5: error: ‘__real_realloc’ aliased to
undefined symbol ‘realloc’
 ret __real_ ## fname (__VA_ARGS__)                    \
     ^
/home/markus/gcc/libmudflap/mf-hooks1.c:176:1: note: in expansion of macro
'WRAPPER'
 WRAPPER(void *, realloc, void *buf, size_t c)
 ^
/home/markus/gcc/libmudflap/mf-impl.h:340:5: error: ‘__wrap_realloc’ aliased to
undefined symbol ‘realloc’
 ret __wrap_ ## fname (__VA_ARGS__)                    \
     ^
/home/markus/gcc/libmudflap/mf-hooks1.c:176:1: note: in expansion of macro
'WRAPPER'
 WRAPPER(void *, realloc, void *buf, size_t c)
 ^
/home/markus/gcc/libmudflap/mf-impl.h:342:5: error: ‘__real_calloc’ aliased to
undefined symbol ‘calloc’
 ret __real_ ## fname (__VA_ARGS__)                    \
     ^
/home/markus/gcc/libmudflap/mf-hooks1.c:134:1: note: in expansion of macro
'WRAPPER'
 WRAPPER(void *, calloc, size_t c, size_t n)
 ^
/home/markus/gcc/libmudflap/mf-impl.h:340:5: error: ‘__wrap_calloc’ aliased to
undefined symbol ‘calloc’
 ret __wrap_ ## fname (__VA_ARGS__)                    \
     ^
/home/markus/gcc/libmudflap/mf-hooks1.c:134:1: note: in expansion of macro
'WRAPPER'
 WRAPPER(void *, calloc, size_t c, size_t n)
 ^
/home/markus/gcc/libmudflap/mf-impl.h:342:5: error: ‘__real_malloc’ aliased to
undefined symbol ‘malloc’
 ret __real_ ## fname (__VA_ARGS__)                    \
     ^
/home/markus/gcc/libmudflap/mf-hooks1.c:98:1: note: in expansion of macro
'WRAPPER'
 WRAPPER(void *, malloc, size_t c)
 ^