[Bug middle-end/27226] [4.1/4.2 Regression] Compiler looses track of alignment for emit_block_move

[rguenth at gcc dot gnu dot org]

------- Comment #15 from rguenth at gcc dot gnu dot org  2006-09-01 20:25 
-------
Subject: Bug 27226

Author: rguenth
Date: Fri Sep  1 20:25:34 2006
New Revision: 116641

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=116641
Log:
2006-09-01  J"orn Rennecke  <[EMAIL PROTECTED]>
        Richard Guenther  <[EMAIL PROTECTED]>
        Adam Nemet  <[EMAIL PROTECTED]>

        PR middle-end/27226
        * builtins.c (get_pointer_alignment): Handle more forms
        of base addresses that can be used to derive more precise
        information about alignment.

        * gcc.target/mips/memcpy-1.c: New testcase.
        * gcc.dg/pr27226.c: Likewise.

Added:
    trunk/gcc/testsuite/gcc.dg/pr27226.c
    trunk/gcc/testsuite/gcc.target/mips/memcpy-1.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/builtins.c
    trunk/gcc/testsuite/ChangeLog


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27226