* fold-const.c (invert_tree_comparison): Always invert EQ_EXPR/NE_EXPR.
PR tree-optimization/44683
* tree-ssa-dom.c (record_edge_info): Record simple equivalences only if
we can be sure that there are no signed zeros involved.
From-SVN: r180340
* gcc.target/i386/branch-cost1.c: New test.
* gcc.target/i386/branch-cost2.c: New test.
* gcc.target/i386/branch-cost3.c: New test.
* gcc.target/i386/branch-cost4.c: New test.
* fold-const.c (simple_operand_p_2): Handle integral
casts from boolean-operands.
From-SVN: r180295
* fold-const.c (fold_unary_loc): Don't optimize
POINTER_PLUS_EXPR casted to TYPE_RESTRICT pointer by
casting the inner pointer if it isn't TYPE_RESTRICT.
* tree-ssa-forwprop.c (forward_propagate_addr_expr_1): Don't through
casts from non-TYPE_RESTRICT pointer to TYPE_RESTRICT pointer.
* gcc.dg/tree-ssa/restrict-4.c: New test.
From-SVN: r179500
2011-09-28 Richard Guenther <rguenther@suse.de>
PR middle-end/50460
* fold-const.c (try_move_mult_to_index): Handle &a.array the
same as &a.array[0].
From-SVN: r179313
2011-08-17 Richard Guenther <rguenther@suse.de>
* tree.h (convert_to_ptrofftype_loc): New function.
(convert_to_ptrofftype): Define.
* builtins.c (expand_builtin_bzero): Use size_type_node.
(fold_builtin_bzero): Likewise.
(std_gimplify_va_arg_expr): Build the BIT_AND_EXPR on the pointer.
* c-typeck.c (build_unary_op): Use convert_to_ptrofftype_loc.
* cgraphunit.c (thunk_adjust): Use fold_build_pointer_plus_loc.
(cgraph_redirect_edge_call_stmt_to_callee): Use size_int.
* expr.c (expand_expr_addr_expr_1): Use fold_build_pointer_plus.
* fold-const.c (build_range_check): Negate using the original
type.
(fold_unary_loc): Use fold_build_pointer_plus_loc.
* gimple-fold.c (gimple_adjust_this_by_delta): Use
convert_to_ptrofftype.
* gimplify.c (gimplify_self_mod_expr): Likewise.
* graphite-clast-to-gimple.c (clast_to_gcc_expression): Likewise.
(graphite_create_new_loop_guard): Likewise.
* graphite-sese-to-poly.c (my_long_long): Remove.
(scop_ivs_can_be_represented): Adjust.
* tree-cfg.c (verify_gimple_assign_unary): Use ptrofftype_p.
* tree-chrec.c (chrec_fold_plus_1): Use fold_build_pointer_plus.
* tree-loop-distribution.c (build_size_arg_loc): Use
size_type_node.
(generate_memset_zero): Simplify.
* tree-mudflap.c: Use fold_convert, not convert.
* tree-predcom.c (suitable_reference_p): Expand DR_OFFSET in
its own type.
(determine_offset): Likewise for DR_STEP.
(valid_initializer_p): Likewise.
* tree-profile.c (prepare_instrumented_value): Convert the pointer
to an integer type of same size.
* tree-scalar-evolution.c (interpret_rhs_expr): Do not refer
to sizetype without need.
* tree-ssa-address.c (tree_mem_ref_addr): Likewise.
* tree-ssa-loop-ivopts.c (find_bivs): Use convert_to_ptrofftype.
* tree-ssa-loop-manip.c (create_iv): Likewise.
(determine_exit_conditions): Adjust comment.
* tree-ssa-pre.c (create_expression_by_pieces): Use
convert_to_ptrofftype.
* tree-ssa-structalias.c (get_constraint_for_1): Likewise.
* varasm.c (array_size_for_constructor): Compute using double_ints.
From-SVN: r177828
2011-08-15 Richard Guenther <rguenther@suse.de>
PR middle-end/50082
* fold-const.c (maybe_canonicalize_comparison_1): Properly
convert the modified operand to the other operand type.
(fold_comparison): Call maybe_canonicalize_comparison_1 with
useless conversions stripped from comparison operands.
From-SVN: r177762
2011-08-03 Richard Guenther <rguenther@suse.de>
PR middle-end/49958
* fold-const.c (fold_binary_loc): Only associate
(+ (+ (* a b) c) (* d e)) as (+ (+ (* a b) (* d e)) c) if
overflow wraps.
* gcc.dg/torture/pr49958.c: New testcase.
From-SVN: r177270
2011-07-21 Kai Tietz <ktietz@redhat.com>
* fold-const.c (fold_unary_loc): Preserve indirect
comparison cast to none-boolean type.
* tree-ssa.c (useless_type_conversion_p): Preserve cast
from/to boolean-type.
* gimplify.c (gimple_boolify): Handle boolification
of comparisons.
(gimplify_expr): Boolifiy non aggregate-typed
comparisons.
* tree-cfg.c (verify_gimple_comparison): Check result
type of comparison expression.
* tree-ssa-forwprop.c (forward_propagate_comparison):
Adjust test of condition result and disallow type-cast
sinking into comparison.
ChangeLog gcc/testsuite
2011-07-21 Kai Tietz <ktietz@redhat.com>
* gcc.dg/tree-ssa/pr30978.c: adjusted.
* gcc.dg/tree-ssa/ssa-fre-6.c: Likewise.
* gcc.dg/binop-xor1.c: Set to fail.
* gcc.dg/binop-xor3.c: Set to fail.
From-SVN: r176563
2011-07-14 Richard Guenther <rguenther@suse.de>
* fold-const.c (fold_binary_loc): Convert the !bool_var result,
not bool_var when folding bool_var != 1 or bool_var == 0.
From-SVN: r176272
2011-07-08 Kai Tietz <ktietz@redhat.com>
* fold-const.c (fold_truth_andor): Factored out truth_andor
label from fold_binary as function.
(fold_binary_loc): Replace truth_andor lable
by function fold_truth_andor.
From-SVN: r176043
2011-07-07 Richard Guenther <rguenther@suse.de>
* fold-const.c (fold_unary_loc): Do not strip sign-changes
for NEGATE_EXPR.
* gcc.dg/ftrapv-3.c: New testcase.
From-SVN: r175976
gcc/
PR tree-optimization/49545
* builtins.c (get_object_alignment_1): Update function comment.
Do not use DECL_ALIGN for functions, but test
TARGET_PTRMEMFUNC_VBIT_LOCATION instead.
* fold-const.c (get_pointer_modulus_and_residue): Don't check
for functions here.
* tree-ssa-ccp.c (get_value_from_alignment): Likewise.
gcc/testsuite/
* gcc.dg/torture/pr49169.c: Restrict to ARM and MIPS targets.
From-SVN: r175627
gcc/
2011-07-24 Richard Guenther <rguenther@suse.de>
PR tree-optimization/49169
* fold-const.c (get_pointer_modulus_and_residue): Don't rely on
the alignment of function decls.
gcc/testsuite/
2011-07-24 Michael Hope <michael.hope@linaro.org>
Richard Sandiford <richard.sandiford@linaro.org>
PR tree-optimization/49169
* gcc.dg/torture/pr49169.c: New test.
From-SVN: r175427
2011-06-20 Kai Tietz <ktietz@redhat.com>
* fold-const.c (fold_binary_loc): Add missing
folding for truth-not operations in combination
with binary and.
ChangeLog gcc/testsuite/
2011-06-20 Kai Tietz <ktietz@redhat.com>
* gcc.dg/binop-notand1.c: New test.
* gcc.dg/binop-notand2.c: New test.
* gcc.dg/binop-notand3.c: New test.
* gcc.dg/binop-notand4.c: New test.
* gcc.dg/binop-notand5.c: New test.
* gcc.dg/binop-notand6.c: New test.
From-SVN: r175206
2011-06-16 Richard Guenther <rguenther@suse.de>
* gimple.c (canonicalize_cond_expr_cond): (bool)x is not
the same as x != 0.
* fold-const.c (fold_binary_loc): Do not fold X & 1 != 0 to
(bool) X & 1.
* ipa-prop.c (ipa_analyze_indirect_call_uses): Also allow
equality compares against zero for the lower bit.
From-SVN: r175096
2011-06-10 Richard Guenther <rguenther@suse.de>
PR tree-optimization/49361
* fold-const.c (fold_binary_loc): Only fold x * x to pow (x, 2.0)
when not already in gimple form.
From-SVN: r174903
2011-05-27 Richard Guenther <rguenther@suse.de>
PR middle-end/49189
* fold-const.c (fold_unary_loc): Do not re-fold folding conversions
of comparisons.
* gnat.dg/bit_packed_array5.adb: New testcase.
* gnat.dg/bit_packed_array5.ads: Likewise.
From-SVN: r174330
2011-05-27 Richard Guenther <rguenther@suse.de>
PR middle-end/49177
* fold-const.c (fold_unary_loc): Fold (T)(A CMP B) to
A CMP B ? (T) true : (T) false for non-integral types T again.
From-SVN: r174326
2011-05-22 Tom de Vries <tom@codesourcery.com>
PR middle-end/48689
* fold-const.c (fold_checksum_tree): Guard TREE_CHAIN use with
CODE_CONTAINS_STRUCT (TS_COMMON).
From-SVN: r174035
2011-04-29 Richard Guenther <rguenther@suse.de>
* tree-inline.c (remap_eh_region_tree_nr): Use integer_type_node
for the remapped region number.
* predict.c (build_predict_expr): Use integer_type_node for the
predict kind.
* fold-const.c (fold_binary_loc): Use integer_type_node for
the shift amount. Use a proper type for the PLUS_EXPR operand.
From-SVN: r173156
2011-04-26 Richard Guenther <rguenther@suse.de>
PR middle-end/48694
* tree.h (OEP_CONSTANT_ADDRESS_OF): New operand_equal_flag.
* fold-const.c (operand_equal_p): For TREE_CONSTANT ADDR_EXPRs
compare the operands with OEP_CONSTANT_ADDRESS_OF. Treat
trees with TREE_SIDE_EFFECTS equal when OEP_CONSTANT_ADDRESS_OF
is set.
* gcc.dg/torture/pr48694-1.c: New testcase.
* gcc.dg/torture/pr48694-2.c: Likewise.
From-SVN: r172954
PR c/48685
* fold-const.c (fold_convert_loc): Add NOP_EXPR when casting
to VOID_TYPE even around MODIFY_EXPR.
* gcc.dg/pr48685.c: New test.
From-SVN: r172895
PR middle-end/48136
* fold-const.c (fold_binary_loc) <case EQ_EXPR, NE_EXPR>: Make sure
arg0/arg1 or their arguments are always fold converted to matching
types.
* gcc.c-torture/compile/pr48136.c: New test.
From-SVN: r171041
2011-03-15 Richard Guenther <rguenther@suse.de>
PR middle-end/48031
* fold-const.c (fold_indirect_ref_1): Do not create new variable-sized
or variable-indexed array accesses when in gimple form.
From-SVN: r170983
PR middle-end/38878
* fold-const.c (fold_binary_loc) <case EQ_EXPR, NE_EXPR>: Add
STRIP_NOPS on arg0 and arg1. When optimizing X +- C == X
and C - X == X also strip nops from +/-/p+ operand.
When optimizing -X == C, fold C to arg0's type.
* gcc.dg/tree-ssa/foldaddr-1.c: Remove xfail.
From-SVN: r170957
