$ cat m68k-dis.i
typedef int (*fprintf_ftype) (void *, const char*, ...);
typedef struct disassemble_info {
fprintf_ftype fprintf_func;
void *stream;
int (*read_memory_func) (void);
} disassemble_info;
extern char *foo (void);
typedef struct { } jmp_buf[1];
extern int setjmp (jmp_buf);
int
print_insn_m68k (disassemble_info *info)
{
jmp_buf bailout;
if (setjmp (bailout) != 0)
return -1;
info->fprintf_func (info->stream, foo ());
return 0;
}
$ gcc/xgcc -B gcc/ -W -Wall -O2 -S m68k-dis.i -v
Reading specs from gcc/specs
Target: ia64-suse-linux
Configured with: ../configure --host=ia64-suse-linux --enable-shared
--enable-threads --enable-__cxa_atexit --with-system-zlib
--with-system-libunwind
Thread model: posix
gcc version 4.0.0 20050416 (prerelease)
gcc/cc1 -fpreprocessed m68k-dis.i -quiet -dumpbase m68k-dis.i -auxbase
m68k-dis -O2 -W -Wall -version -o m68k-dis.s
GNU C version 4.0.0 20050416 (prerelease) (ia64-suse-linux)
compiled by GNU C version 4.0.0 20050416 (prerelease).
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
m68k-dis.i: In function œôòøprint_insn_m68kœôòù:
m68k-dis.i:11: warning: argument œôòøinfoœôòù might be clobbered by
œôòølongjmpœôòù or œôòøvforkœôòù
--
Summary: Bogus warning about clobbered variable
Product: gcc
Version: 4.0.0
Status: UNCONFIRMED
Keywords: diagnostic
Severity: normal
Priority: P2
Component: middle-end
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: schwab at suse dot de
CC: gcc-bugs at gcc dot gnu dot org
GCC target triplet: ia64-*-*
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21059
