------- Comment #14 from rguenth at gcc dot gnu dot org 2008-05-31 13:01 ------- Subject: Bug 34244
Author: rguenth Date: Sat May 31 13:01:10 2008 New Revision: 136237 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=136237 Log: 2008-05-31 Richard Guenther <[EMAIL PROTECTED]> PR tree-optimization/34244 * fold-const.c (tree_expr_nonnegative_warnv_p): Do not ask VRP. (tree_expr_nonzero_warnv_p): Likewise. * tree-vrp.c (vrp_expr_computes_nonnegative): Call ssa_name_nonnegative_p. (vrp_expr_computes_nonzero): Call ssa_name_nonzero_p. (extract_range_from_unary_expr): Use vrp_expr_computes_nonzero, not tree_expr_nonzero_warnv_p. PR tree-optimization/36262 Revert 2007-11-29 Zdenek Dvorak <[EMAIL PROTECTED]> PR tree-optimization/34244 * tree-vrp.c (adjust_range_with_scev): Clear scev cache. (record_numbers_of_iterations): New function. (execute_vrp): Cache the numbers of iterations of loops. * tree-scalar-evolution.c (scev_reset_except_niters): New function. (scev_reset): Use scev_reset_except_niters. * tree-scalar-evolution.h (scev_reset_except_niters): Declare. Modified: trunk/gcc/ChangeLog trunk/gcc/fold-const.c trunk/gcc/tree-scalar-evolution.c trunk/gcc/tree-scalar-evolution.h trunk/gcc/tree-vrp.c -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34244
