[Bug tree-optimization/48837] [4.4/4.5/4.6/4.6 Regression] Wrong optimization of recursive function calls

[rakdver at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48837

--- Comment #9 from Zdenek Dvorak <rakdver at gcc dot gnu.org> 2011-05-07 
19:43:21 UTC ---
Author: rakdver
Date: Sat May  7 19:43:18 2011
New Revision: 173534

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=173534
Log:
    PR tree-optimization/48837
    * tree-tailcall.c (tree_optimize_tail_calls_1): Do not mark tailcalls
    when accumulator transformation is performed.

    * gcc.dg/pr48837.c: New testcase.


Added:
    trunk/gcc/testsuite/gcc.dg/pr48837.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-tailcall.c