[Bug tree-optimization/82700] New: ICE in printf-return-value with -fexec-charset=EBCDIC-US: converting to execution character set: Invalid or incomplete multibyte or wide character

[msebor at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82700

            Bug ID: 82700
           Summary: ICE in printf-return-value with
                    -fexec-charset=EBCDIC-US: converting to execution
                    character set: Invalid or incomplete multibyte or wide
                    character
           Product: gcc
           Version: 8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: msebor at gcc dot gnu.org
  Target Milestone: ---

The following ICE came up in a discussion Re: [RFC] New pragma exec_charset
(https://gcc.gnu.org/ml/gcc-patches/2017-10/msg01672.html).  The program is
expected to compile with the same output as with -fexec-charset=IBM1047.

$ cat c.c && gcc  -Wall -O2 -fexec-charset=EBCDIC-US c.c
int main (void)
{
   char d[5];

   int n = __builtin_sprintf (d, "i=%i", 12345);

   if (n != 7)
     __builtin_abort ();
}

c.c: In function ‘main’:
c.c:5:34: warning: too many arguments for format [-Wformat-extra-args]
    int n = __builtin_sprintf (d, "i=%i", 12345);
                                  ^~~~~~
during GIMPLE pass: printf-return-value
c.c:10:0: internal compiler error: converting to execution character set:
Invalid or incomplete multibyte or wide character


0x82fe9f c_cpp_error(cpp_reader*, int, int, rich_location*, char const*,
__va_list_tag (*) [1])
        /ssd/src/gcc/svn/gcc/c-family/c-common.c:6075
0x1905da0 cpp_diagnostic_at
        /ssd/src/gcc/svn/libcpp/errors.c:60
0x1905e72 cpp_diagnostic
        /ssd/src/gcc/svn/libcpp/errors.c:91
0x1905f27 cpp_error(cpp_reader*, int, char const*, ...)
        /ssd/src/gcc/svn/libcpp/errors.c:104
0x19067c0 cpp_errno(cpp_reader*, int, char const*)
        /ssd/src/gcc/svn/libcpp/errors.c:300
0x18fa3c6 cpp_host_to_exec_charset(cpp_reader*, unsigned int)
        /ssd/src/gcc/svn/libcpp/charset.c:798
0x82feeb c_common_to_target_charset(long)
        /ssd/src/gcc/svn/gcc/c-family/c-common.c:6093
0x17de7a9 init_target_to_host_charmap
        /ssd/src/gcc/svn/gcc/gimple-ssa-sprintf.c:319
0x17e68a8 execute
        /ssd/src/gcc/svn/gcc/gimple-ssa-sprintf.c:3990
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