r173876 - in /trunk/gcc: ChangeLog testsuite/Ch...

[jakub@gcc.gnu.org]

Author: jakub
Date: Wed May 18 20:39:05 2011
New Revision: 173876

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=173876
Log:
	PR tree-optimization/49039
	* tree-vrp.c (extract_range_from_binary_expr): For
	MIN_EXPR <~[a, b], ~[c, d]> and MAX_EXPR <~[a, b], ~[c, d]>
	return ~[MAX_EXPR <a, c>, MIN_EXPR <b, d>].

	* gcc.c-torture/execute/pr49039.c: New test.
	* gcc.dg/tree-ssa/pr49039.c: New test.
	* g++.dg/torture/pr49039.C: New test.

Added:
    trunk/gcc/testsuite/g++.dg/torture/pr49039.C
    trunk/gcc/testsuite/gcc.c-torture/execute/pr49039.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/pr49039.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vrp.c