2006-12-14 Richard Guenther <rguenther@suse.de>
PR tree-optimization/30198
* fold-const.c (fold_unary): Fold REALPART_EXPR of cexpi to cos.
Fold IMAGPART_EXPR of cexpi to sin.
* gcc.dg/builtins-60.c: New testcase.
From-SVN: r119858
2006-12-12 Andrew Pinski <andrew_pinski@playstation.sony.com>
PR tree-opt/28436
* tree.h (DECL_COMPLEX_GIMPLE_REG_P): Rename to ...
(DECL_GIMPLE_REG_P): This.
* fold-const.c (fold_indirect_ref_1): Fold *(foo *)&vectorfoo into
using BIT_FIELD_REF.
* omp-low.c (omp_copy_decl_2): Use the renamed DECL_GIMPLE_REG_P.
* tree-gimple.c (is_gimple_reg): Use the renamed DECL_GIMPLE_REG_P
and check for VECTOR_TYPE.
* expr.c (get_inner_reference): Set the mode for BIT_FIELD_REF with
vector types.
* tree-flow-inline.h (var_can_have_subvars): Use the renamed
DECL_GIMPLE_REG_P.
* gimplify.c (internal_get_tmp_var): Use the renamed DECL_GIMPLE_REG_P
and check for VECTOR_TYPE.
(gimplify_bind_expr): Likewise.
(gimplify_function_tree): Likewise.
* expmed.c: Include target.h.
(extract_bit_field): For vector mode, try find a better mode first.
If that fails use gen_lowpart (for vectors only).
* tree-dfa.c (make_rename_temp): Use the renamed DECL_GIMPLE_REG_P
and check for VECTOR_TYPE.
* tree-ssa-pre.c (create_expressions_by_pieces): Likewise.
(insert_into_preds_of_block): Likewise.
(insert_fake_stores): Create gimple register store_tmps for
vector types.
* tree-sra.c (sra_elt): New field, is_vector_lhs.
(sra_walk_expr <case BIT_FIELD_REF>): For vector types that
are the left hand side, set the element's is_vector_lhs to true.
(instantiate_element): For vector types which were on the left hand size, set DECL_GIMPLE_REG_P to false.
* tree-nested.c (create_tmp_var_for): Use the renamed DECL_GIMPLE_REG_P. * tree-inline.c (declare_return_variable): Use the renamed
DECL_GIMPLE_REG_P
and check for VECTOR_TYPE. (copy_decl_to_var): Use the renamed DECL_GIMPLE_REG_P.
(copy_result_decl_to_var): Likewise.
* tree-vect-transform.c (vect_get_new_vect_var): For vector types, create a gimple register variable.
(vect_permute_store_chain): Set DECL_GIMPLE_REG_P to true for the
vect_inter_* temp variables.
* Makefile.in (expmed.o): Update dependencies.
2006-12-12 Andrew Pinski <andrew_pinski@playstation.sony.com>
PR tree-opt/28436
* gcc.c-torture/compile/vector-1.c: New test.
* gcc.c-torture/compile/vector-2.c: New test.
* gcc.c-torture/compile/vector-3.c: New test.
From-SVN: r119801
2006-12-12 Richard Guenther <rguenther@suse.de>
PR middle-end/30147
* fold-const.c (fold_read_from_constant_string): Only fold read
from constant string if the result type is integer.
* gfortran.fortran-torture/compile/pr30147.f90: New testcase.
From-SVN: r119776
* fold-const.c (fold_binary) <LT_EXPR>: Use the precision of the
type instead of the size of its mode to compute the highest and
lowest possible values. Still check the size of the mode before
flipping the signedness of the comparison.
From-SVN: r119422
PR tree-optimization/29921
* fold-const.c (operand_equal_p): Without HONOR_SIGNED_ZEROS, consider
signed and unsigned zero equal.
* gcc.dg/pr29921.c: New test.
From-SVN: r119102
2006-11-15 Andrew Pinski <andrew_pinski@playstation.sony.com>
PR tree-opt/29788
* fold-const.c (fold_indirect_ref_1): Fold *&CONST_DECL down
to what is the const decl is a place holder for.
2006-11-15 Andrew Pinski <andrew_pinski@playstation.sony.com>
PR tree-opt/29788
* gfortran.fortran-torture/compile/inline_1.f90:
New testcase.
From-SVN: r118861
* builtins.c (fold_builtin_cosh): New.
(fold_builtin_1): Use it.
* fold-const.c (negate_mathfn_p): Add llround, lround, round,
trunc to the list of "odd" functions. Also add llrint, lrint,
rint and nearbyint when flag_rounding_math is false.
testsuite:
* gcc.dg/torture/builtin-symmetric-1.c: Add more cases.
From-SVN: r118733
PR tree-optimization/13827
* fold-const.c (fold_binary) <EQ_EXPR, NE_EXPR>: Fold (X&C) op (Y&C)
as ((X^Y)&C) op 0.
* gcc.dg/fold-eqand-1.c: New test case.
From-SVN: r118727
* fold-const.c (int_binop_types_match_p): New function.
(size_binop): Relax constraint that both arguments must both have
exactly the same sizetype type. Instead use int_binop_types_match_p.
(size_diffop): Likewise.
(make_range): Use build_int_cst instead of fold_convert.
(fold_cond_expr_with_comparison): Use build_int_cst to construct
integer constants of the correct type.
(fold_div_compare): Likewise.
(fold_single_bit_test): Likewise.
(fold_binary): Likewise.
* stor-layout.c (layout_type) <VECTOR_TYPE>: Ensure that TYPE_SIZE
has type bitsizetype and TYPE_SIZE_UNIT has type sizetype.
From-SVN: r118718
* tree-ssa-propagate.c (set_rhs): Restructure validity tests as a
test for inclusion rather than as a test for exclusion.
* tree-ssa-ccp.c (fold_stmt_r) <COND_EXPR>: Use set_rhs to modify
the condition after calling fold_binary.
* fold-const.c (fold_inf_compare): Remove in_gimple_form check.
(fold_binary) <LT_EXPR, GT_EXPR, LE_EXPR, GE_EXPR>: Likewise.
* builtins.c (fold_builtin_isascii): Likewise.
(fold_builtin_isdigit): Likewise.
From-SVN: r118593
PR middle-end/29695
* fold-const.c (fold_ternary): Fix A < 0 ? <sign bit of A> : 0
simplification.
* gcc.c-torture/execute/pr29695-1.c: New test.
* gcc.c-torture/execute/pr29695-2.c: New test.
From-SVN: r118497
PR middle-end/23470
* tree.h (tree_expr_nonnegative_p): Return "bool" instead of "int".
* fold-const.c (tree_expr_nonnegative_p): Likewise. Consider
pow(x,y) and powi(x,y) to be nonnegative if either x is nonnegative
or y is an even integer.
* gcc.dg/pr23470-1.c: New test case.
From-SVN: r118355
* fold-const.c (fold_comparison): Fold ~X op ~Y as Y op X.
Fold ~X op C as X op' ~C, where op' is the swapped comparison.
(fold_binary): ~X eq/ne C is now handled in fold_comparison.
Fold -X eq/ne -Y as X eq/ne Y.
* gcc.dg/fold-compare-1.c: New test case.
From-SVN: r118158
PR tree-optimization/15458
* fold-const.c (fold_binary): Optimize ~X ^ C as X ^ ~C, where C
is a constant.
* gcc.dg/fold-xornot-1.c: New test case.
From-SVN: r118152
2006-10-28 Richard Guenther <rguenther@suse.de>
PR middle-end/26899
* fold-const.c (maybe_canonicalize_comparison_1): Helper
for maybe_canonicalize_comparison.
(maybe_canonicalize_comparison): New function for canonicalizing
comparison trees.
(fold_comparison): Call it to canonicalize comparisons with
constants involved.
* gcc.dg/tree-ssa/pr26899.c: New testcase.
From-SVN: r118106
2006-10-24 Richard Guenther <rguenther@suse.de>
PR middle-end/27132
PR middle-end/23295
* builtins.c (fold_binary): Remove checks for flag_wrapv
and flag_trapv where negate_expr_p covers these cases.
* gcc.dg/pr27132.c: New testcase.
* gcc.dg/pr23295.c: Likewise.
* gcc.dg/tree-ssa/pr23294.c: Adjust patterns.
* g++.dg/tree-ssa/pr19807.C: Likewise.
2006-10-23 Richard Guenther <rguenther@suse.de>
PR middle-end/29548
* fold-const.c (fold_plusminus_mult_expr): Check exact power
of two on the absolute value.
(fold_binary): Fold x * -C to -x * C if x is easily negatable
and negating -C does not overflow.
From-SVN: r117969
2006-10-21 Richard Guenther <rguenther@suse.de>
PR middle-end/26898
* fold-const.c (fold_comparison): Fold signed comparisons
of the form X +- C1 CMP Y +- C2.
* gcc.dg/torture/pr26898-1.c: New testcase.
* gcc.dg/torture/pr26898-2.c: Likewise.
From-SVN: r117931
* fold-const.c (add_double): Rename to add_double_with_sign.
Add 'unsigned_p' parameter and take it into account for the overflow.
(mul_double): Rename to mul_double_with_sign.
Add 'unsigned_p' parameter and take it into account for the overflow.
(fold_div_compare): Call add_double_with_sign instead of add_double
and mul_double_with_sign instead of mul_double, passing them the
unsignedness of the type.
* tree.h (add_double): Macroize.
(add_double_with_sign): New prototype.
(mul_double): Macroize.
(mul_double_with_sign): New prototype.
From-SVN: r117887
2006-08-26 Richard Guenther <rguenther@suse.de>
PR middle-end/28814
* fold-const.c (fold_binary): Fold temporary to correct
type before constructing new comparison.
* gcc.dg/torture/pr28814.c: New testcase.
From-SVN: r116439
2006-07-05 Richard Guenther <rguenther@suse.de>
PR tree-optimization/28162
* fold-const.c (fold_binary): For (-A) * (-B) -> A * B
make sure to convert the operands to the correct type.
* gcc.dg/pr28162.c: New testcase.
From-SVN: r115202
* expr.c (expand_expr_real_1) <VECTOR_CST>: For vector constants with
integer modes, attempt to directly construct an integer constant.
* fold-const.c (native_encode_vector): Determine the size of each
element from the vector type instead of the first vector element.
* tree.c (build_constructor_single): Mark a CONSTRUCTOR as constant,
if all of its elements/components are constant.
(build_constructor_from_list): Likewise.
From-SVN: r114815
2006-06-19 Richard Guenther <rguenther@suse.de>
PR middle-end/28045
* fold-const.c (operand_equal_p): Check if the argument types
have the same precision before stripping NOPs.
* gcc.dg/torture/pr28045.c: New testcase.
From-SVN: r114772
2006-06-16 Richard Guenther <rguenther@suse.de>
PR middle-end/27116
* fold-const.c (negate_expr_p): Do not introduce undefined
overflow in negating INTEGER_CSTs.
(fold_negate_expr): Rename from negate_expr. Revert last
change for folding BIT_NOT_EXPR. Change semantics to
return NULL_TREE for non-simplified negations. Do not
strip type conversions and unify type handling.
(negate_expr): New function, wrap around fold_negate_expr
but ensure building a tree always. Strip type conversions
here, fold to result type.
(fold_unary): Use fold_negate_expr for folding NEGATE_EXPR.
* gcc.dg/pr15785-1.c: Revert last change.
* gcc.dg/torture/pr27116-2.c: New testcase.
From-SVN: r114723
2006-06-16 Michael Matz <matz@suse.de>
Richard Guenther <rguenther@suse.de>
* fold-const.c (fold_truthop): Only return new tree node if
we canonicalized something.
Co-Authored-By: Richard Guenther <rguenther@suse.de>
From-SVN: r114713
2006-06-15 Richard Guenther <rguenther@suse.de>
* fold-const.c (fold_truth_not_expr): Rename from
invert_truthvalue. Give it fold_* semantics to avoid
generating garbage.
(invert_truthvalue): New function. Wrapper around
fold_truth_not_expr.
(optimize_minmax_comparison): Avoid creating garbage.
(fold_unary): Use fold_truth_not_expr for folding
TRUTH_NOT_EXPR.
(fold_ternary): Replace uses of invert_truthvalue with
fold_truth_not_expr where applicable.
* tree.h (fold_truth_not_expr): Prototype.
From-SVN: r114683
2006-06-08 Richard Guenther <rguenther@suse.de>
PR middle-end/27116
* fold-const.c (negate_expr_p): We can negate BIT_NOT_EXPR
only, if overflow is defined and not trapping.
(negate_expr): Likewise.
* gcc.dg/torture/pr27116.c: New testcase.
* gcc.dg/pr15785-1.c: Remove test for invalid transformation.
From-SVN: r114483
gcc:
* tree.h: Declare folding_initializer.
* builtins.c (fold_builtin_constant_p): Give definite answer
if folding inside an initializer.
* fold-const.c: Define folding_initializer.
(START_FOLD_INIT): Save and then set folding_initializer.
(END_FOLD_INIT): Restore folding_initializer.
gcc/testsuite:
* gcc.c-torture/compile/builtin_constant_p.c: New test.
From-SVN: r114358
2006-06-04 Richard Guenther <rguenther@suse.de>
PR tree-optimization/27039
* fold-const.c (fold_comparison): Handle pointer comparison
again for all comparison codes. Compare offsets in signed
size type.
(fold_binary): Move code from here.
* gcc.dg/tree-ssa/loop-17.c: New testcase.
From-SVN: r114357
PR tree-optimization/23452
* fold-const.c (fold_mult_zconjz): New subroutine of fold_binary,
to optimize z * conj(z) as realpart(z)^2 + imagpart(z)^2.
(fold_binary) <MULT_EXPR>: Call fold_mult_zconjz for integral
complex values and with -ffast-math for FP complex values.
* gcc.dg/fold-mulconj-1.c: New test case.
From-SVN: r114246
2006-05-27 Richard Guenther <rguenther@suse.de>
PR middle-end/27773
* fold-const.c (fold_plusminus_mult_expr): Use fold_convert
to produce a constant of value 1 of generic type.
* gcc.dg/torture/pr27773.c: New testcase.
From-SVN: r114158
2006-05-25 Richard Guenther <rguenther@suse.de>
PR middle-end/27743
* fold-const.c (fold_binary): Do not look at the stripped
op0 for (a OP c1) OP c2 to a OP (c1+c2) shift optimization.
* gcc.dg/torture/pr27743.c: New testcase.
From-SVN: r114112
