------- Comment #10 from rakdver at gcc dot gnu dot org 2006-11-09 00:09 ------- Subject: Bug 29738
Author: rakdver Date: Thu Nov 9 00:09:43 2006 New Revision: 118602 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=118602 Log: PR tree-optimization/29738 * tree-ssa-ccp.c: Remove UNKNOWN_VAL from comments. (ccp_lattice_t): Remove UNKNOWN_VAL. (dump_lattice_value, ccp_lattice_meet, ccp_visit_phi_node): Do not handle UNKNOWN_VAL. (get_default_value): Set initial value of virtual operands to VARYING. (get_value): Always use get_default_value on uninitialized operands. (set_value_varying, surely_varying_stmt_p): New functions. (set_lattice_value): Do not pass argument to get_value. Do not handle UNKNOWN_VAL. (likely_value): Follow the semantics described in the comment. (ccp_initialize): Use surely_varying_stmt_p. Do not mark phi nodes DONT_SIMULATE_AGAIN. (ccp_fold): Do not pass argument to get_value. (fold_const_aggregate_ref, visit_assignment): Ditto. Do not handle UNKNOWN_VAL. * gcc.dg/tree-ssa/ssa-ccp-14.c: New test. * gcc.dg/tree-ssa/ssa-ccp-15.c: New test. Added: trunk/gcc/testsuite/gcc.dg/tree-ssa/ssa-ccp-14.c trunk/gcc/testsuite/gcc.dg/tree-ssa/ssa-ccp-15.c Modified: trunk/gcc/ChangeLog trunk/gcc/testsuite/ChangeLog trunk/gcc/tree-ssa-ccp.c -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29738
