[Bug tree-optimization/53881] [4.8 regression] ICE in hoist_edge_and_branch_if_true

[steven at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53881

--- Comment #5 from Steven Bosscher <steven at gcc dot gnu.org> 2012-07-07 
12:35:49 UTC ---
Author: steven
Date: Sat Jul  7 12:35:44 2012
New Revision: 189349

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=189349
Log:
gcc/
    PR tree-optimization/53881
    * tree-switch-conversion.c (emit_case_bit_tests): Do not rely on
    comparing labels to establish uniqueness of a switch case target,
    use the CFG instead.

testsuite/
    PR tree-optimization/53881
    * gcc.dg/pr53881.c: New test.


Added:
    trunk/gcc/testsuite/gcc.dg/pr53881.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-switch-conversion.c