[Bug debug/44223] segmentation fault with -g -fsched-pressure

[jakub at gcc dot gnu dot org]

------- Comment #5 from jakub at gcc dot gnu dot org  2010-05-21 18:45 -------
Subject: Bug 44223

Author: jakub
Date: Fri May 21 18:45:29 2010
New Revision: 159680

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=159680
Log:
        PR debug/44223
        * haifa-sched.c (schedule_insn): When freeing INSN_REG_USE_LIST,
        unchain each use from the cyclic next_regno_use chain first.

        * gcc.target/i386/pr44223.c: New test.

Added:
    trunk/gcc/testsuite/gcc.target/i386/pr44223.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/haifa-sched.c
    trunk/gcc/testsuite/ChangeLog


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44223