[Bug tree-optimization/71520] Missing cross-jumping of switch cases

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71520

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Tue Jun 14 10:20:04 2016
New Revision: 237427

URL: https://gcc.gnu.org/viewcvs?rev=237427&root=gcc&view=rev
Log:
        PR tree-optimization/71520
        * tree-ssa-tail-merge.c (find_duplicate): Handle labels.
        (replace_block_by): Move user labels from bb1 to bb2.

        * gcc.dg/tree-ssa/pr71520.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/tree-ssa/pr71520.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-tail-merge.c