[Bug rtl-optimization/42258] [4.5 Regression] redundant register move around mul instruction

[bernds at gcc dot gnu dot org]

------- Comment #7 from bernds at gcc dot gnu dot org  2010-03-19 18:19 -------
Subject: Bug 42258

Author: bernds
Date: Fri Mar 19 18:18:54 2010
New Revision: 157581

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=157581
Log:
gcc/
        PR rtl-optimization/42258
        * ira-lives.c (check_and_make_def_conflict): Ignore conflict for a
        use that may match DEF.

testsuite/
        PR rtl-optimization/42258
        * gcc.target/arm/thumb1-mul-moves.c: New test.



Added:
    trunk/gcc/testsuite/gcc.target/arm/thumb1-mul-moves.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/ira-lives.c
    trunk/gcc/testsuite/ChangeLog


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42258