[Bug tree-optimization/70884] [6/7 regression] 2nd SRA pass confused by load from constant pool

[jamborm at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70884

--- Comment #7 from Martin Jambor <jamborm at gcc dot gnu.org> ---
Author: jamborm
Date: Fri May 20 21:04:31 2016
New Revision: 236544

URL: https://gcc.gnu.org/viewcvs?rev=236544&root=gcc&view=rev
Log:
[PR 70884] Constant pool SRA fix

2016-05-20  Martin Jambor  <mjambor@suse.cz>

        PR tree-optimization/70884
        * tree-sra.c (initialize_constant_pool_replacements): Do not check
        should_scalarize_away_bitmap and cannot_scalarize_away_bitmap bits.
        (sort_and_splice_var_accesses): Do not consider multiple scalar reads
        of constant pool data as a reason for scalarization.

testsuite/
        * gcc.dg/tree-ssa/pr70919.c: New test.


Added:
    trunk/gcc/testsuite/gcc.dg/tree-ssa/pr70919.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-sra.c