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
gcc/
* config/mips/mips-dsp.md (mips_lbux): Turn into a define_expand,
changing operand 1 to a pmode_register_operand.
(mips_lhx, mips_lwx): Likewise.
(mips_lbux_<mode>, mips_lhx_<mode>, mips_lwx_<mode>): New patterns.
* config/mips/mips.c (mips_prepare_builtin_arg): Get the mode of
the value from the argument expression.
From-SVN: r142872
2008-12-21 Jerry DeLisle <jvdelisle@gcc.gnu.org>
PR libfortran/38398
* io/io.h (st_parameter_dt): Add new bit to keep track of when to
suppress blanks for g0 formatting.
* io/transfer.c (formatted_transfer_scalar): Always call write_real_g0
for g0 formatting.
* io.c (write.c): Do not use ES formatting and use new bit to suppress
blanks.
* io/write_float.def (output_float): Adjust the location of setting the
width so that it can be adjusted when suppressing blanks. Set number of
blanks to zero when dtp->u.p.g0_no_blanks is set. Do some minor code
clean-up and add some white space for readability.
From-SVN: r142871
2008-12-21 Jerry DeLisle <jvdelisle@gcc.gnu.org>
PR fortran/38398
* io.c: Add error checks for g0 formatting and provide adjustment of
error loci for improved error messages.
From-SVN: r142870
2008-12-21 Arjen Markus <arjen.markus@wldelft.nl>
Daniel Kraft <d@domob.eu>
PR fortran/37605
* gfortran.texi: Fixed some typos and some minor style improvements.
* intrinsic.texi: Some clarifications and typo-fixes.
* invoke.texi: Better documenation of the behaviour of the
-fdefault-*-8 options and some other fixes.
Co-Authored-By: Daniel Kraft <d@domob.eu>
From-SVN: r142866
2008-12-21 Paolo Carlini <paolo.carlini@oracle.com>
PR libstdc++/38596
* include/tr1_impl/function (function<>::target,
function<>::target_type): Provide only when __GXX_RTTI is defined.
(_Function_base::_M_manager, _Ref_manager<>::_M_manager,
_Function_handler<void(_ArgTypes...), _Member _Class::*>::_M_manager):
Adjust.
From-SVN: r142862
* i376.md (UNSPEC_MS_TO_SYSV_CALL): New constant.
(call_1_rex64_ms_sysv, call_value_0_rex64_ms_sysv,
call_value_1_rex64_ms_sysv): New patterns.
* i386.c (function_arg_ms_64): Pass magical value of -2 as callarg.
(ix86_expand_call): Emit extra clobbers for ms->sysv ABI calls.
Co-Authored-By: Kai Tietz <kai.tietz@onevision.com>
From-SVN: r142859
PR target/37610
* configure.ac (gcc_cv_as_cfi_advance_working): Fall back to 'no'
if readelf is nowhere to be found.
* configure: Regenerate.
From-SVN: r142850
2008-12-19 Joel Sherrill <joel.sherrill@oarcorp.com>
* lib/target-supports.exp: Add *-*-rtems* to list
of targets without profiling support.
From-SVN: r142848
Revert:
2008-12-12 Janis Johnson <janis187@us.ibm.com>
PR libgfortran/24685
* gfortran.dg/default_format_denormal_2.f90: Change XFAIL to check
for size of long double.
From-SVN: r142840
PR target/38548
* arm/t-linux (LIB1ASMFUNCS): Add _arm_addsubdf3 and
_arm_addsubsf3.
* arm/lib1funcs.asm (clzsi2): Use RET macro for return
instruction.
From-SVN: r142838
PR libgcj/38396
* configure.ac (use_libgcj_bc): Set to no if not enable_shared.
(LIBGCJ_SPEC): Use -lgcj instead of -lgcj_bc even for -static
or -static-libgcj.
* Makefile.am (ecjx_SOURCES): Add ecjx.cc.
(ecjx_LDADD): Don't add libgcj.la when
NATIVE && USE_LIBBGCJ_BC.
* ecjx.cc: New file.
* Makefile.in: Regenerated.
* configure: Regenerated.
From-SVN: r142834
PR bootstrap/37739
* config.host: For powerpc*-*-linux* host with 32-bit GCC,
use rs6000/x-linux-relax snippet if ld is new enough,
otherwise use rs6000/x-linux-O1.
* config/rs6000/x-linux-relax: New file.
* config/x-cflags-O1: New file.
From-SVN: r142833
2008-12-18 Jack Howarth <howarth@bromo.med.uc.edu>
* testsuite/21_strings/basic_string/element_access/wchar_t/21674.cc:
Add xfail on all targets except darwin.
* libstdc++-v3/testsuite/21_strings/basic_string/element_access/char/
1674.cc: Same.
* libstdc++-v3/testsuite/22_locale/ctype/is/char/2.cc: Correct syntax
for xfailing on all targets except linux.
From-SVN: r142819
PR c++/38427
* init.c (perform_member_init): For value-initialized
references call permerror instead of warning and don't emit any
INIT_EXPR.
* g++.dg/init/ctor9.C: New test.
From-SVN: r142818
