[Bug target/41514] redundant compare instruction of consecutive conditional branches

[bernds at gcc dot gnu dot org]

------- Comment #5 from bernds at gcc dot gnu dot org  2010-04-16 09:42 -------
Subject: Bug 41514

Author: bernds
Date: Fri Apr 16 09:42:32 2010
New Revision: 158404

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=158404
Log:
        PR target/41514
        * config/arm/arm.md (cbranchsi4_insn): Renamed from "*cbranchsi4_insn".
        If the previous insn is a cbranchsi4_insn with the same arguments,
        omit the compare instruction.

        PR target/41514
        gcc.target/arm/thumb-comparisons.c: New test.

Added:
    trunk/gcc/testsuite/gcc.target/arm/thumb-comparisons.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/arm/arm.md
    trunk/gcc/testsuite/ChangeLog


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41514