PR middle-end/38505
* tree-ssa-ccp.c (may_propagate_address_into_dereference): Return
false if ADDR's operand has incomplete type.
Revert:
2008-12-15 Jakub Jelinek <jakub@redhat.com>
PR middle-end/38505
* tree-ssa.c (useless_type_conversion_p_1): Return
false if inner_type is incomplete and outer_type is complete.
From-SVN: r142972
2008-12-30 Richard Guenther <rguenther@suse.de>
PR tree-optimization/38645
* tree-ssa-ccp.c (fold_gimple_assign): Use the correct pointer
type.
* tree-ssa-dom.c (cprop_operand): Simplify. Do not propagate
volatileness changing operands.
* gcc.dg/pr38645.c: New testcase.
From-SVN: r142967
2008-12-30 Andrew Pinski <pinskia@gmail.com>
PR middle-end/38661
* tree-switch-conversion.c (build_constructors): Test for wrapping of
pos case.
2008-12-30 Andrew Pinski <pinskia@gmail.com>
PR middle-end/38661
* gcc.c-torture/compile/pr38661.c: New testcase.
* gcc.c-torture/compile/pr38661-1.c: New testcase.
From-SVN: r142964
PR middle-end/38584
* ipa-inline.c (compute_inline_parameters): When not optimizing,
don't compute the inline parameters, just set them to 0 instead.
From-SVN: r142963
2008-12-30 Paolo Bonzini <bonzini@gnu.org>
PR tree-optimization/38572
* tree-vrp.c (vrp_visit_phi_node): Look out for invalid ranges
and change them to VARYING.
From-SVN: r142962
2008-12-30 Richard Guenther <rguenther@suse.de>
PR middle-end/38564
* fold-const.c (fold_comparison): Use the correct result type.
* gcc.c-torture/compile/pr38564.c: New testcase.
From-SVN: r142961
PR tree-optimization/38529
* tree-vect-transform (vect_transform_stmt): Handle inner-loop stmts
whose DEF is used in the loop-nest that is being vectorized, but
outside the immediately enclosing loop.
Co-Authored-By: Ira Rosen <irar@il.ibm.com>
From-SVN: r142959
PR fortran/31832
* acinclude.m4 (LIBGFOR_CHECK_FOR_BROKEN_POWF): New autoconf check for
broken powf.
* configure.ac (LIBGFOR_CHECK_FOR_BROKEN_POWF): Use it.
* intrinsics/c99_functions.c: Use internal powf implementation if
HAVE_BROKEN_POWF is defined.
* configure: Rebuilt.
* config.h.in: Rebuilt.
From-SVN: r142952
PR c++/38635
* parser.c (cp_parser_condition): Use cp_parser_require
instead of cp_lexer_consume_token to consume =.
* g++.dg/parse/cond4.C: New test.
From-SVN: r142951
PR c++/36191
* tree-complex.c (expand_complex_libcall): Call
maybe_clean_or_replace_eh_stmt and gimple_purge_dead_eh_edges
instead of passing true as 3rd argument to gsi_replace.
* g++.dg/torture/pr36191.C: New test.
From-SVN: r142950
* gcc.c-torture/execute/builtins/fprintf.x: Disable test for
freestanding targets.
* gcc.c-torture/execute/pr37573.x: Disable test for 16-bit targets.
* gcc.c-torture/execute/20081117-1.x: Disable test for 16-bit targets.
* gcc.c-torture/compile/limits-stringlit.c: Disable test for picochip.
* gcc.dg/array-quals-1.c: Disable test for picochip.
* lib/target-supports.exp: Add support for freestanding ports and
disable picochip for profiling tests.
From-SVN: r142948
PR driver/38381
* gcc.c (process_command): Accept also -b with configuration name
in the next argument.
* doc/invoke.texi (-b): Document that no hyphen is required if
configuration name is in the next argument after -b.
From-SVN: r142947
PR middle-end/38633
* tree-cfg.c (replace_block_vars_by_duplicates): Only call
replace_by_duplicate_decl for VAR_DECLs or CONST_DECLs.
* gcc.dg/gomp/pr38633.c: New test.
* g++.dg/gomp/pr38633.C: New test.
From-SVN: r142934
2008-12-23 Andrew Pinski <pinski@gmail.com>
PR middle-end/38590
* fold-const.c (fold_binary): Call fold_convert on arguments to
fold_build2 for negative divide optimization.
2008-12-23 Andrew Pinski <pinskia@gmail.com>
PR middle-end/38590
* gcc.c-torture/compile/pr38590-1.c: New testcase.
* gcc.c-torture/compile/pr38590-2.c: New testcase.
From-SVN: r142906
PR middle-end/31150
* dse.c (struct store_info): Add const_rhs field.
(clear_rhs_from_active_local_stores): Clear also const_rhs.
(record_store): Try also cselib_expand_value_rtx to get a constant.
(find_shift_sequence, get_stored_val): Use const_rhs instead of
rhs if worthwhile.
* cselib.c (cselib_record_sets): If !cselib_record_memory and
there is just one set from read-only MEM, look at REG_EQUAL or
REG_EQUIV note.
* dse.c (struct store_info): Add redundant_reason field.
(record_store): When storing the same constant as has been
stored by an earlier store, set redundant_reason field
to the earlier store's insn_info_t. Don't delete cannot_delete
insns.
(find_shift_sequence): Remove read_info argument, add read_mode
and require_cst arguments. Return early if require_cst and
constant wouldn't be returned.
(get_stored_val): New function.
(replace_read): Use it.
(scan_insn): Put even cannot_delete insns with exactly 1 store
into active_local_stores.
(dse_step1): Don't delete cannot_delete insns. Remove redundant
constant stores if contains_cselib_groups and earlier store storing
the same value hasn't been eliminated.
(dse_step6): Renamed to dse_step7. New function.
(dse_step7): Renamed from dse_step6.
(rest_of_handle_dse): Call dse_step6 and dse_step7 at the end.
* cselib.c (cselib_expand_value_rtx): Don't wrap CONST_INTs
into CONST unless really necessary. Handle SUBREG, unary,
ternary, bitfield and compares specially, to be able to simplify
operations on constants.
(expand_loc): Try to optimize LO_SUM.
* dse.c (get_call_args): New function.
(scan_insn): Don't handle BUILT_IN_BZERO. For memset, attempt
to get call arguments and if successful and both len and val are
constants, handle the call as (mem:BLK) (const_int) store.
* dse.c (struct store_info): Add is_large bool field, change
positions_needed into a union of a bitmask and bitmap + count.
(free_store_info): Free bitmap if is_large.
(set_usage_bits): Don't look at stores where
offset + width >= MAX_OFFSET.
(set_position_unneeded, set_all_positions_unneeded,
any_positions_needed_p, all_positions_needed_p): New static inline
functions.
(record_store): Handle BLKmode stores of CONST_INT, if
MEM_SIZE is set on the MEM. Use the new positions_needed
accessor inlines.
(replace_read): Handle reads from BLKmode CONST_INT stores.
(check_mem_read_rtx): Use all_positions_needed_p function.
(dse_step1): Free large positions_needed bitmaps and clear is_large.
* dse.c (struct store_info): Change begin and end types to
HOST_WIDE_INT.
* dse.c (record_store): Fix check for unused store.
* expr.c (block_clear_fn): No longer static.
* expr.h (block_clear_fn): Declare.
* dse.c (scan_insn): Memset and bzero can just read their
arguments.
* gcc.c-torture/execute/20081218-1.c: New test.
From-SVN: r142892
* config/i386/i386.c (expand_setmem_via_rep_stos): Add ORIG_VALUE
argument. If ORIG_VALUE is const0_rtx and COUNT is constant,
set MEM_SIZE on DESTMEM.
(ix86_expand_setmem): Adjust callers.
PR target/38488
* expr.h (get_mem_align_offset): New prototype.
* emit-rtl.c (get_mem_align_offset): New function.
* config/i386/i386.c (expand_movmem_via_rep_mov): Set MEM_SIZE correctly.
(expand_constant_movmem_prologue, expand_constant_setmem_prologue):
New functions.
(ix86_expand_movmem): Optimize if COUNT_EXP
is constant, desired_align > align and dst & (desired_align - 1)
is computable at compile time.
(ix86_expand_setmem): Likewise.
* builtins.c (get_memory_rtx): Try to derive MEM_ATTRS from not yet
resolved SAVE_EXPR or POINTER_PLUS_EXPR.
From-SVN: r142891
* config/alpha/alpha.h (ASM_OUTPUT_EXTERNAL): New macro.
PR target/34571
* config/alpha/predicates.md (symbolic_operand): Return 1 for a
label_ref with an offset.
From-SVN: r142885
2008-12-22 Jerry DeLisle <jvdelisle@gcc.gnu.org>
PR libfortran/37472
* io/write_float.def (output_float_FMT_G_): Modify calculation of temp
to avoid sensitivity to round-off.
From-SVN: r142884
Andreas Tobler
Jakub Jelinek
GCC Administrator
Richard Guenther
Steven Bosscher
Seongbae Park
Andrew Pinski
Paolo Bonzini
Gerald Pfeifer
Dorit Nuzman
John David Anglin
Jakub Jelinek
Uros Bizjak
Hariharan Sandanagobalane
Uros Bizjak
Kazu Hirata
Andrew Pinski
Jonathan Larmour
Jerry DeLisle
Benjamin Kosnik
Paul Thomas