[Bug debug/59575] [4.9 regression] ICE in maybe_record_trace_start, at dwarf2cfi.c:2239

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59575

--- Comment #25 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 31980
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=31980&action=edit
gcc49-pr59575.patch

Ah, of course, you're right, num_dwarf_regs is uninitialized.  Fixed thusly.