[Bug c/27735] ice with -O3 on legal code

[dcb314 at hotmail dot com]

------- Comment #2 from dcb314 at hotmail dot com  2006-05-22 22:15 -------
(In reply to comment #0)
I just tried to compile Suse Linux package qemacs-0.3.1-214 with the
GNU C compiler version 4.2 snapshot 20060520.

The compiler snapshot said

xml.c: In function 'xml_colorize_line':
xml.c:159: error: edge from 99 to 101 should not be marked irreducible
xml.c:159: error: basic block 101 should not be marked irreducible
xml.c:159: error: edge from 101 to 84 should not be marked irreducible
xml.c:159: internal compiler error: in verify_loop_structure, at cfgloop.c:1268
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.

Preprocessed source code attached.  Flag -O3 required.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27735