+2006-04-03 Paolo Bonzini <bonzini@gnu.org>
+ Dale Johannesen <dalej@apple.com>
+
+ PR target/19653
+ * regclass.c (struct reg_pref): Update documentation.
+ (regclass): Set prefclass to NO_REGS if memory is the best option.
+ (record_reg_classes): Cope with a prefclass set to NO_REGS.
+ * reload.c (find_reloads): Take PREFERRED_OUTPUT_RELOAD_CLASS
+ into account. For non-registers, equate an empty preferred
+ reload class to a `!' in the constraint; move the if clause to
+ do so after those that reject the insn.
+ (push_reload): Allow PREFERRED_*_RELOAD_CLASS to liberally
+ return NO_REGS.
+ (find_dummy_reload): Likewise.
+ * doc/tm.texi (Register Classes): Document what it means
+ if PREFERRED_*_RELOAD_CLASS return NO_REGS.
+ * config/i386/i386.c (ix86_preferred_reload_class): Force
+ using SSE registers (and return NO_REGS for floating-point
+ constants) if math is done with SSE.
+ (ix86_preferred_output_reload_class): New.
+ * config/i386/i386-protos.h (ix86_preferred_output_reload_class): New.
+ * config/i386/i386.h (PREFERRED_OUTPUT_RELOAD_CLASS): New.
+ * config/i386/i386.md: Remove # register preferences.
+
+2006-04-02 Sebastian Pop <pop@cri.ensmp.fr>
+
+ PR bootstrap/26992
+ * tree-scalar-evolution.c (compute_overall_effect_of_inner_loop,
+ chrec_is_positive, set_nb_iterations_in_loop): Use a variable for
+ the type of nb_iter.
+ (instantiate_parameters_1): Convert the operands before calling
+ chrec_fold_minus, chrec_fold_plus, or chrec_fold_multiply.
+ * tree-data-ref.c (can_use_analyze_subscript_affine_affine): Same.
+
+2006-04-02 Roger Sayle <roger@eyesopen.com>
+
+ * builtins.c (dummy_object): Use build_int_cst instead of convert.
+ * tree-ssa-ccp.c (maybe_fold_stmt_addition): Use fold_convert
+ instead of convert.
+ * dojump.c (do_jump): Likewise.
+ * expr.h (ADD_PARM_SIZE, SUB_PARM_SIZE, ARGS_SIZE_TREE): Likewise.
+ * gimplify.c (gimple_boolify, gimplify_init_constructor,
+ gimplify_boolean_expr): Likewise.
+ * emit-rtl.c (set_mem_attributes_minus_bitpos): Likewise.
+ * varasm.c (array_size_for_constructor): Likewise.
+ * tree-object-size.c (compute_object_offset): Likewise.
+
+2006-04-02 Roger Sayle <roger@eyesopen.com>
+
+ PR middle-end/26977
+ * expr.c (emit_group_store): Check whether simplify_gen_subreg returns
+ NULL_RTX, indicating it couldn't create a valid paradoxical subreg.
+
+2006-04-02 Sebastian Pop <pop@cri.ensmp.fr>
+
+ PR tree-optimization/26939
+ * tree-chrec.c (chrec_merge): Use eq_evolutions_p.
+
+2006-04-02 Sebastian Pop <pop@cri.ensmp.fr>
+
+ * tree-scalar-evolution.c (add_to_evolution_1): Pass an extra argument
+ at_stmt. Convert the type of operands before calling
+ build_polynomial_chrec.
+ (add_to_evolution): Pass an extra argument at_stmt. Adjust the call to
+ add_to_evolution_1.
+ (follow_ssa_edge_in_rhs): Adjust call to add_to_evolution.
+ (instantiate_parameters_1): Convert the type of operands before calling
+ build_polynomial_chrec.
+ * tree-chrec.c (chrec_fold_poly_cst, chrec_fold_plus_poly_poly,
+ chrec_fold_multiply_poly_poly, chrec_replace_initial_condition,
+ reset_evolution_in_loop): Insert asserts to check the types of the
+ operands.
+ (chrec_type): Moved...
+ (eq_evolutions_p): Use operand_equal_p.
+ * tree-chrec.h (build_polynomial_chrec): Insert an assert to check
+ the types of the operands.
+ (chrec_type): ...here.
+ * tree-data-ref.c (create_data_ref): Convert the operands before
+ calling chrec_replace_initial_condition.
+ (same_access_functions, analyze_subscript_affine_affine,
+ analyze_miv_subscript, all_chrecs_equal_p): Use eq_evolutions_p.
+ (compute_subscript_distance, analyze_ziv_subscript,
+ analyze_siv_subscript_cst_affine, compute_overlap_steps_for_affine_1_2,
+ analyze_miv_subscript): Convert the operands before calling
+ chrec_fold_minus or chrec_fold_plus.
+
+2006-04-02 Sebastian Pop <pop@cri.ensmp.fr>
+
+ * tree-data-ref.c (compute_all_dependences): Use a pointer to
+ the dependence_relations vector.
+ (compute_data_dependences_for_loop): Adjust call to
+ compute_all_dependences.
+
+2006-04-01 Roger Sayle <roger@eyesopen.com>
+ Richard Henderson <rth@redhat.com>
+
+ * gimplify.c (gimplify_scan_omp_clauses) <OMP_CLAUSE_IF>: Call
+ gimple_boolify on the condition before calling gimplify_expr.
+
+2006-03-31 Bob Wilson <bob.wilson@acm.org>
+
+ * config/xtensa/lib1funcs.asm: Rename abi_entry/abi_return macros
+ to leaf_entry/leaf_return. Change leaf_entry to add 16 bytes to
+ the frame size. Update to use the new macros.
+ * config/xtensa/ieee754-sf.S: Use new leaf_entry/leaf_return macros.
+ * config/xtensa/ieee754-df.S: Likewise.
+
+2006-03-31 Richard Henderson <rth@redhat.com>
+
+ * tree-cfg.c (make_ctrl_stmt_edges, make_exit_edges): Merge into...
+ (make_edges): ... here. Control fallthru creation with a local
+ variable. Do not play with fake edges.
+ (make_omp_sections_edges): Don't set EDGE_ABNORMAL.
+ (make_goto_expr_edges): Don't play with fake edges. Make for_call
+ a boolean.
+
2006-04-01 Joseph S. Myers <joseph@codesourcery.com>
* dwarf2.h (DW64_CIE_ID): Define.