[Bug middle-end/26134] fold *(float*)(&complex_float_var) into REALPART_EXPR<complex_float_var>

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26134

--- Comment #9 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-03-16 13:53:17 UTC ---
Author: rguenth
Date: Wed Mar 16 13:53:09 2011
New Revision: 171046

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=171046
Log:
2011-03-16  Richard Guenther  <rguenther@suse.de>

    PR tree-optimization/26134
    * tree-ssa.c (maybe_rewrite_mem_ref_base): Handle rewriting
    complex part accesses to REALPART_EXPR and IMAGPART_EXPR.
    (non_rewritable_mem_ref_base): Handle complex type component
    accesses, constrain offsets for vector and complex extracts
    more properly.

    * gcc.dg/tree-ssa/complex-6.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/tree-ssa/complex-6.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa.c