[Bug target/36134] GCC creates suboptimal ASM : usage of ADDA.L where LEA could be used

[ams at gcc dot gnu dot org]

------- Comment #7 from ams at gcc dot gnu dot org  2008-11-14 10:50 -------
Subject: Bug 36134

Author: ams
Date: Fri Nov 14 10:49:06 2008
New Revision: 141853

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=141853
Log:
2008-11-14  Maxim Kuvyrkov  <maxim@codesourcery.com>
            Andrew Stubbs  <ams@codesourcery.com>
            Gunnar Von Boehn  <gunnar@genesi-usa.com>

        gcc/
        PR target/36134
        * config/m68k/m68k.md (addsi3_5200): Add a new alternative preferring
        the shorter LEA insn over ADD.L where possible.

        gcc/testsuite/
        PR target/36134
        * gcc.target/m68k/pr36134.c: New test.



Added:
    trunk/gcc/testsuite/gcc.target/m68k/pr36134.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/m68k/m68k.md
    trunk/gcc/testsuite/ChangeLog


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36134