[Bug bootstrap/71292] Bootstrap failure with segfault in tree-reassoc.c

[kugan at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71292

--- Comment #5 from kugan at gcc dot gnu.org ---
Author: kugan
Date: Mon May 30 10:47:57 2016
New Revision: 236876

URL: https://gcc.gnu.org/viewcvs?rev=236876&root=gcc&view=rev
Log:
gcc/testsuite/ChangeLog:

2016-05-30  Kugan Vivekanandarajah  <kug...@linaro.org>

        PR middle-end/71269
        PR middle-end/71292
        * gcc.dg/tree-ssa/pr71269.c: New test.
        * gcc.dg/tree-ssa/pr71292.c: New test.

gcc/ChangeLog:

2016-05-30  Kugan Vivekanandarajah  <kug...@linaro.org>

        PR middle-end/71269
        PR middle-end/71252
        * tree-ssa-reassoc.c (insert_stmt_before_use): Use find_insert_point so
        that inserted stmt will not dominate stmts that defines its operand.
        (rewrite_expr_tree): Add stmt_to_insert before adding the use stmt.
        (rewrite_expr_tree_parallel): Likewise.


Added:
    trunk/gcc/testsuite/gcc.dg/tree-ssa/pr71269.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/pr71292.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-reassoc.c