[Bug middle-end/55507] [4.8 Regression] ICE in vt_expand_var_loc_chain, at var-tracking.c:8020

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55507



--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-11-28 
23:01:21 UTC ---

Author: jakub

Date: Wed Nov 28 23:01:03 2012

New Revision: 193911



URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=193911

Log:

    PR debug/36728

    PR debug/55467

    PR middle-end/55507

    PR bootstrap/55511

    * cselib.c (cselib_process_insn): If cselib_preserve_constants,

    don't reset table and exit early on volatile insns and setjmp.

    Reset table afterwards on setjmp.



    * gcc.dg/guality/pr36728-1.c: Include "../nop.h", make sure the asm

    are non-empty and add dependency between the first and second asm.

    * gcc.dg/guality/pr36728-2.c: Likewise.

    * gcc.dg/guality/pr36728-3.c: New test.

    * gcc.dg/guality/pr36728-4.c: New test.



Added:

    trunk/gcc/testsuite/gcc.dg/guality/pr36728-3.c

    trunk/gcc/testsuite/gcc.dg/guality/pr36728-4.c

Modified:

    trunk/gcc/ChangeLog

    trunk/gcc/cselib.c

    trunk/gcc/testsuite/ChangeLog

    trunk/gcc/testsuite/gcc.dg/guality/pr36728-1.c

    trunk/gcc/testsuite/gcc.dg/guality/pr36728-2.c