[Bug debug/55094] New: [4.7/4.8 Regression] ICE in maybe_record_trace_start, at dwarf2cfi.c:2224

[d.g.gorbachev at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55094



             Bug #: 55094

           Summary: [4.7/4.8 Regression] ICE in maybe_record_trace_start,

                    at dwarf2cfi.c:2224

    Classification: Unclassified

           Product: gcc

           Version: 4.8.0

            Status: UNCONFIRMED

          Severity: normal

          Priority: P3

         Component: debug

        AssignedTo: unassig...@gcc.gnu.org

        ReportedBy: d.g.gorbac...@gmail.com





GCC 4.8, i686-pc-linux-gnu. Also happens in 4.7 configured with checking.



Compile this with `-g -Os -fomit-frame-pointer -fno-asynchronous-unwind-tables

-mpreferred-stack-boundary=2':



============== 8< ==============

extern int puts(const char *s);



int main(int argc, char **argv)

{

  if (argc) {

    puts(argv[0]);

    __builtin_trap();

  }

  __builtin_trap();

}

============== >8 ==============



1.c: In function 'main':

1.c:10:1: internal compiler error: in maybe_record_trace_start, at

dwarf2cfi.c:2224

 }

 ^

0x82cf181 maybe_record_trace_start

    ../../gcc-4.8/gcc/dwarf2cfi.c:2224

0x82cf56b scan_trace

    ../../gcc-4.8/gcc/dwarf2cfi.c:2401

0x82cf9cd create_cfi_notes

    ../../gcc-4.8/gcc/dwarf2cfi.c:2556

0x82cfcfa execute_dwarf2_frame

    ../../gcc-4.8/gcc/dwarf2cfi.c:2915

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