path: root/ChangeLog.linaro

2012-05-15  Andrew Stubbs  <ams@codesourcery.com>

	GCC Linaro 4.7-2012.05 released.

	gcc/
	* LINARO-VERSION: Update.

2012-05-15  Andrew Stubbs  <ams@codesourcery.com>

	Merge from FSF (GCC SVN branches/gcc-4_7-branch:187448)

2012-05-08  Ulrich Weigand  <ulrich.weigand@linaro.org>

	LP 959242

	Backport from mainline:

	gcc/
	PR tree-optimization/52633
	* tree-vect-patterns.c (vect_vect_recog_func_ptrs): Swap order of
	vect_recog_widen_shift_pattern and vect_recog_over_widening_pattern.
	(vect_recog_over_widening_pattern): Remove handling of code that was
	already detected as over-widening pattern.  Remove special handling
	of "unsigned" cases.  Instead, support general case of conversion
	of the shift result to another type.

	gcc/testsuite/
	PR tree-optimization/52633
	* gcc.dg/vect/vect-over-widen-1.c: Two patterns should now be
	recognized as widening shifts instead of over-widening.
	* gcc.dg/vect/vect-over-widen-1-big-array.c: Likewise.
	* gcc.dg/vect/vect-over-widen-4.c: Likewise.
	* gcc.dg/vect/vect-over-widen-4-big-array.c: Likewise.
	* gcc.target/arm/pr52633.c: New test.

	gcc/
	* tree-vect-patterns.c (vect_single_imm_use): New function.
	(vect_recog_widen_mult_pattern): Use it instead of open-coding loop.
	(vect_recog_over_widening_pattern): Likewise.
	(vect_recog_widen_shift_pattern): Likewise.

	gcc/
	* tree-vect-patterns.c (vect_same_loop_or_bb_p): New function.
	(vect_handle_widen_op_by_const): Use it instead of open-coding test.
	(vect_recog_widen_mult_pattern): Likewise.
	(vect_operation_fits_smaller_type): Likewise.
	(vect_recog_over_widening_pattern): Likewise.
	(vect_recog_widen_shift_pattern): Add to vect_same_loop_or_bb_p test.

2012-05-04  Michael Hope  <michael.hope@linaro.org>

	Backport from mainline r186859:

	gcc/
	2012-04-26  Michael Hope  <michael.hope@linaro.org>
		    Richard Earnshaw  <rearnsha@arm.com>

	* config/arm/linux-eabi.h (GLIBC_DYNAMIC_LINKER_SOFT_FLOAT): Define.
	(GLIBC_DYNAMIC_LINKER_HARD_FLOAT): Define.
	(GLIBC_DYNAMIC_LINKER_DEFAULT): Define.
	(GLIBC_DYNAMIC_LINKER):	Redefine to use the hard float path.

	Backport from mainline r187012:

	gcc/
	2012-05-01  Richard Earnshaw  <rearnsha@arm.com>

	* arm/linux-eabi.h (GLIBC_DYNAMIC_LINKER_DEFAULT): Avoid ifdef
	comparing enumeration values.  Update comments.

2012-04-30  Andrew Stubbs  <ams@codesourcery.com>

	gcc/
	* config/arm/arm.md (negdi2): Use gen_negdi2_neon.
	* config/arm/neon.md (negdi2_neon): New insn.
	Also add splitters for core and NEON registers.

2012-04-30  Andrew Stubbs  <ams@codesourcery.com>

	gcc/
	* config/arm/arm.c (neon_valid_immediate): Allow const_int.
	(arm_print_operand): Add 'x' format.
	* config/arm/constraints.md (Dn): Allow const_int.
	* config/arm/neon.md (neon_mov<mode>): Use VDX to allow DImode.
	Use 'x' format to print constants.
	* config/arm/predicates.md (imm_for_neon_mov_operand): Allow const_int.
	* config/arm/vfp.md (movdi_vfp): Disable for const_int when neon
	is enabled.
	(movdi_vfp_cortexa8): Likewise.

2012-04-13  Ulrich Weigand  <ulrich.weigand@linaro.org>

	LP 968766

	Backport from mainline:

	gcc/
	PR tree-optimization/52870
	* tree-vect-patterns.c (vect_recog_widen_mult_pattern): Verify that
	presumed pattern statement is within the same loop or basic block.

	gcc/testsuite/
	PR tree-optimization/52870
	* gcc.dg/vect/pr52870.c: New test.

2012-04-10  Andrew Stubbs  <ams@codesourcery.com>

	gcc/
	* LINARO-VERSION: Bump version.

2012-04-10  Andrew Stubbs  <ams@codesourcery.com>

	GCC Linaro 4.7-2012.04 released.

	gcc/
	* LINARO-VERSION: New file.
	* configure.ac: Add Linaro version string.
	* configure: Regenerate.

2012-04-05  Andrew Stubbs  <ams@codesourcery.com>

	Backport from mainline r186167:
	
	2012-04-05  Andrew Stubbs  <ams@codesourcery.com>

	gcc/
	* config/arm/arm.md (arch): Add neon_onlya8 and neon_nota8.
	(arch_enabled): Handle new arch types.
	(one_cmpldi2): Add NEON support.

2012-04-02  Andrew Stubbs  <ams@codesourcery.com>

	Merge from FSF (GCC SVN branches/gcc-4_7-branch:186061)

2012-04-04  Andrew Stubbs  <ams@codesourcery.com>

	Backport from mainline r185855:
	
	2012-03-27  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>

	* gcc.target/arm/thumb-ifcvt.c: Only run for -mthumb.
	* gcc.target/arm/thumb-16bit-ops.c: Likewise.

2012-03-26  Michael Hope  <michael.hope@linaro.org>

	Backport from mainline r185702:

	libcpp/
	2012-03-22  Richard Earnshaw  <rearnsha@arm.com>

	* lex.c (search_line_fast): Provide Neon-optimized version for ARM.

2012-03-23  Michael Hope  <michael.hope@linaro.org>

	Backport from mainline r184957:

	libgcc/
	2012-03-05  Richard Henderson  <rth@redhat.com>

	* longlong.h [ARM] (umul_ppmm): Use umull for arm3m and later.
	[ARM] (count_trailing_zeros): Use the builtin.

	Backport from mainline r185202:

	2012-03-11  Michael Hope  <michael.hope@linaro.org>

	* longlong.h [ARM] (add_ssaaaa, sub_ddmmss, umul_ppmm): Enable
	for Thumb-2.

	Backport from mainline r185698:

	2012-03-22  Richard Earnshaw  <rearnsha@arm.com>

	* arm/lib1funcs.asm (ctzsi2): New function.
	* arm/t-elf (LIB1ASMFUNCS): Add _ctzsi2.
	* arm/t-linux (LIB1ASMFUNCS): Likewise.
	* arm/t-strongarm-elf (LIB1ASMFUNCS): Likewise.
	* arm/t-symbian (LIB1ASMFUNCS): Likewise.
	* arm/t-vxworks (LIB1ASMFUNCS): Likewise.
	* arm/t-wince-pe (LIB1ASMFUNCS): Likewise.

2012-03-23  Michael Hope  <michael.hope@linaro.org>

	Backport from mainline r185603:

	gcc/
	2012-03-20  Richard Earnshaw  <rearnsha@arm.com>

	* arm/predicates.md (zero_operand, reg_or_zero_operand): New predicates.
	* arm/neon.md (neon_vceq<mode>, neon_vcge<mode>): Use
	reg_or_zero_operand predicate.
	(neon_vcle<mode>, neon_vclt<mode>): Use zero_operand predicate.

2012-03-23  Michael Hope  <michael.hope@linaro.org>

	Backport from mainline r185603:

	gcc/
	2012-03-21  Richard Earnshaw  <rearnsha@arm.com>

	* neon.md (neon_vget_lanev2di): Use gen_lowpart and gen_highpart.
	* config/arm/neon.ml (Fixed_return_reg): Renamed to fixed_vector_reg.
	All callers changed.
	(Fixed_core_reg): New feature.
	(Vget_lane [sizes S64 and U64]): Add Fixed_core_reg.  Allow fmrrd in
	disassembly.
	* neon-testgen.ml: Handle Fixed_core_reg.

	gcc/testsuite/
	* gcc.target/arm/neon/vgetQ_laneu64.c: Regenerated.
	* gcc.target/arm/neon/vgetQ_lanes64.c: Likewise.

2012-03-26  Ulrich Weigand  <ulrich.weigand@linaro.org>

	LP 960283
	LP 960274
	LP 960817

	Backport from mainline:

	gcc/
	PR tree-optimization/52686
	* tree-vect-data-refs.c (vect_get_smallest_scalar_type): Handle
	WIDEN_LSHIFT_EXPR.

	gcc/testsuite/
	PR tree-optimization/52686
	* gcc.target/arm/pr52686.c: New test.

2012-03-21  Andrew Stubbs  <ams@codesourcery.com>

	Backport from FSF mainline:

	2012-03-21  Andrew Stubbs  <ams@codesourcery.com>

	gcc/
	* config/arm/arm.c (thumb2_reorg): Add complete support
	for 16-bit instructions.
	* config/arm/thumb2.md: Delete obsolete flag-clobbering peepholes.

	gcc/testsuite/
	* gcc.target/arm/thumb-16bit-ops.c: New file.
	* gcc.target/arm/thumb-ifcvt.c: New file.

2012-03-06  Ulrich Weigand  <ulrich.weigand@linaro.org>

	Backport from mainline:

	gcc/
	* config/arm/arm.c (arm_sat_operator_match): New function.
	* config/arm/arm-protos.h (arm_sat_operator_match): Add prototype.
	* config/arm/arm.md ("insn" attribute): Add "sat" value.
	("SAT", "SATrev"): New code iterators.
	("SATlo", "SAThi"): New code iterator attributes.
	("*satsi_<SAT:code>"): New pattern.
	("*satsi_<SAT:code>_shift"): Likewise.
	* config/arm/arm-fixed.md ("arm_ssatsihi_shift"): Add "insn"
	and "shift" attributes.
	("arm_usatsihi"): Add "insn" attribute.
	* config/arm/predicates.md (sat_shift_operator): Allow multiplication
	by powers of two.  Do not allow shift by 32.

	gcc/testsuite/
	* gcc.target/arm/sat-1.c: New test.

2012-02-29  Andrew Stubbs  <ams@codesourcery.com>

	Merge from FSF trunk SVN revision 184662.

2012-02-27  Ulrich Weigand  <ulrich.weigand@linaro.org>

	gcc/
	* combine.c (apply_distributive_law): Do not distribute SUBREG.

2012-02-27  Richard Sandiford  <richard.sandiford@linaro.org>

	gcc/
	* fwprop.c (propagate_rtx): Also set PR_CAN_APPEAR for subregs.

2012-02-24  Ulrich Weigand  <ulrich.weigand@linaro.org>

	Backport from mainline:

	2012-02-22  Ulrich Weigand  <ulrich.weigand@linaro.org>

	gcc/testsuite/
	* lib/target-supports.exp (check_effective_target_vect_condition):
	Return true for NEON.

2012-02-24  Ulrich Weigand  <ulrich.weigand@linaro.org>

	Merged from Linaro GCC 4.6, still need to be merged upstream:

	2011-11-27  Ira Rosen  <ira.rosen@linaro.org>

	gcc/
	* tree-vectorizer.h (vect_pattern_recog): Add new argument.
	* tree-vect-loop.c (vect_analyze_loop_2): Update call to
	vect_pattern_recog.
	* tree-vect-patterns.c (widened_name_p): Pass basic block
	info to vect_is_simple_use.
	(vect_recog_dot_prod_pattern): Fail for basic blocks.
	(vect_recog_widen_sum_pattern): Likewise.
	(vect_handle_widen_op_by_const): Support basic blocks.
	(vect_operation_fits_smaller_type,
	vect_recog_over_widening_pattern): Likewise.
	(vect_recog_vector_vector_shift_pattern): Support basic blocks.
	Update call to vect_is_simple_use.
	(vect_recog_mixed_size_cond_pattern): Support basic blocks.
	Add printing.
	(check_bool_pattern): Add an argument, update call to
	vect_is_simple_use and the recursive calls.
	(vect_recog_bool_pattern): Update relevant function calls.
	Add printing.
	(vect_mark_pattern_stmts): Update calls to new_stmt_vec_info.
	(vect_pattern_recog_1): Check for reduction only in loops.
	(vect_pattern_recog): Add new argument.  Support basic blocks.
	* tree-vect-stmts.c (vectorizable_conversion): Pass basic block
	info to vect_is_simple_use_1.
	* tree-vect-slp.c (vect_get_and_check_slp_defs): Support basic
	blocks.
	(vect_slp_analyze_bb_1): Call vect_pattern_recog.

	gcc/testsuite/
	* gcc.dg/vect/bb-slp-pattern-1.c: New test.
	* gcc.dg/vect/bb-slp-pattern-2.c: New test.

	2011-11-27  Ira Rosen  <ira.rosen@linaro.org>

	gcc/
	* tree-vect-patterns.c (widened_name_p): Rename to ...
	(type_conversion_p): ... this.  Add new argument to determine
	if it's a promotion or demotion operation.  Check for
	CONVERT_EXPR_CODE_P instead of NOP_EXPR.
	(vect_recog_dot_prod_pattern): Call type_conversion_p instead
	widened_name_p.
	(vect_recog_widen_mult_pattern, vect_recog_widen_sum_pattern,
	vect_operation_fits_smaller_type, vect_recog_widen_shift_pattern):
	Likewise.
	(vect_recog_mixed_size_cond_pattern): Likewise and allow
	non-constant then and else clauses.

	gcc/testsuite/
	* gcc.dg/vect/slp-cond-3.c: New test.
	* gcc.dg/vect/slp-cond-4.c: New test.

2012-02-17  Ulrich Weigand  <ulrich.weigand@linaro.org>

	gcc/
	* common/config/arm/arm-common.c (arm_option_optimization_table):
	Enable -fsched-pressure using -fsched-pressure-algorithm=model by
	default when optimizing.

2012-02-17  Richard Sandiford  <richard.sandiford@linaro.org>

	gcc/
	* sched-deps.c (fixup_sched_groups): Rename to...
	(chain_to_prev_insn): ...this.
	(chain_to_prev_insn_p): New function.
	(deps_analyze_insn): Use it instead of SCHED_GROUP_P.

2012-02-17  Richard Sandiford  <richard.sandiford@linaro.org>

	gcc/
	* sched-int.h (_haifa_insn_data): Move priority_status.
	Add model_index.
	(INSN_MODEL_INDEX): New macro.
	* haifa-sched.c (insn_delay): New function.
	(sched_regno_pressure_class): Update commentary.
	(mark_regno_birth_or_death): Pass the liveness bitmap and
	pressure array as arguments, instead of using curr_reg_live and
	curr_reg_pressure.  Only update the pressure if the bit in the
	liveness set has changed.
	(initiate_reg_pressure_info): Always trust the live-in set for
	SCHED_PRESSURE_MODEL.
	(initiate_bb_reg_pressure_info): Update call to
	mark_regno_birth_or_death.
	(dep_list_size): Take the list as argument.
	(calculate_reg_deaths): New function, extracted from...
	(setup_insn_reg_pressure_info): ...here.
	(MODEL_BAR): New macro.
	(model_pressure_data, model_insn_info, model_pressure_limit)
	(model_pressure_group): New structures.
	(model_schedule, model_worklist, model_insns, model_num_insns)
	(model_curr_point, model_before_pressure, model_next_priority):
	New variables.
	(MODEL_PRESSURE_DATA, MODEL_MAX_PRESSURE, MODEL_REF_PRESSURE)
	(MODEL_INSN_INFO, MODEL_INSN): New macros.
	(model_index, model_update_limit_points_in_group): New functions.
	(model_update_limit_points, model_last_use_except): Likewise.
	(model_start_update_pressure, model_update_pressure): Likewise.
	(model_recompute, model_spill_cost, model_excess_group_cost): Likewise.
	(model_excess_cost, model_dump_pressure_points): Likewise.
	(model_set_excess_costs): Likewise.
	(rank_for_schedule): Extend SCHED_PRIORITY_WEIGHTED ordering to
	SCHED_PRIORITY_MODEL.  Use insn_delay.  Use the order in the model
	schedule as an alternative tie-breaker.  Update the call to
	dep_list_size.
	(ready_sort): Call model_set_excess_costs.
	(update_register_pressure): Update call to mark_regno_birth_or_death.
	Rely on that function to check liveness rather than doing it here.
	(model_classify_pressure, model_order_p, model_add_to_worklist_at)
	(model_remove_from_worklist, model_add_to_worklist, model_promote_insn)
	(model_add_to_schedule, model_analyze_insns, model_init_pressure_group)
	(model_record_pressure, model_record_pressures): New functions.
	(model_record_final_pressures, model_add_successors_to_worklist)
	(model_promote_predecessors, model_choose_insn): Likewise.
	(model_reset_queue_indices, model_dump_pressure_summary): Likewise.
	(model_start_schedule, model_finalize_pressure_group): Likewise.
	(model_end_schedule): Likewise.
	(schedule_insn): Say when we're scheduling the next instruction
	in the model schedule.
	(schedule_insn): Handle SCHED_PRESSURE_MODEL.
	(queue_to_ready): Do not add instructions that are
	MAX_SCHED_READY_INSNS beyond the current point of the model schedule.
	Always allow the next instruction in the model schedule to be added.
	(debug_ready_list): Print the INSN_REG_PRESSURE_EXCESS_COST_CHANGE
	and delay for SCHED_PRESSURE_MODEL too.
	(prune_ready_list): Extend SCHED_PRIORITY_WEIGHTED handling to
	SCHED_PRIORITY_MODEL, but also take the DFA into account.
	(schedule_block): Call model_start_schedule and model_end_schedule.
	Extend SCHED_PRIORITY_WEIGHTED stall handling to SCHED_PRIORITY_MODEL.
	(sched_init): Extend INSN_REG_PRESSURE_EXCESS_COST_CHANGE handling
	to SCHED_PRESSURE_MODEL, but don't allocate saved_reg_live or
	region_ref_regs.
	(sched_finish): Update accordingly.
	(fix_tick_ready): Extend INSN_REG_PRESSURE_EXCESS_COST_CHANGE handling
	to SCHED_PRESSURE_MODEL.
	(add_jump_dependencies): Update call to dep_list_size.
	(haifa_finish_h_i_d): Fix leak of max_reg_pressure.
	(haifa_init_insn): Extend INSN_REG_PRESSURE_EXCESS_COST_CHANGE handling
	to SCHED_PRESSURE_MODEL.
	* sched-deps.c (init_insn_reg_pressure_info): Likewise, but don't
	allocate INSN_MAX_REG_PRESSURE for SCHED_PRESSURE_MODEL.
	(sched_analyze_insn): Extend INSN_REG_PRESSURE_EXCESS_COST_CHANGE
	handling to SCHED_PRESSURE_MODEL.

2012-02-17  Richard Sandiford  <richard.sandiford@linaro.org>

	gcc/
	* common.opt (fsched-pressure-algorithm=): New option.
	* flag-types.h (sched_pressure_algorithm): New enum.
	* sched-int.h (sched_pressure_p): Replace with...
	(sched_pressure): ...this new variable.
	* haifa-sched.c (sched_pressure_p): Replace with...
	(sched_pressure): ...this new variable.
	(sched_regno_pressure_class, rank_for_schedule, ready_sort)
	(update_reg_and_insn_max_reg_pressure, schedule_insn)
	(debug_ready_list, prune_ready_list, schedule_block, sched_init)
	(sched_finish, fix_tick_ready, haifa_init_insn): Update accordingly.
	* sched-deps.c (init_insn_reg_pressure_info): Likewise.
	(sched_analyze_insn): Likewise.
	* sched-rgn.c (schedule_region): Likewise.
	* config/m68k/m68k.c (m68k_sched_variable_issue): Likewise.

2012-02-15  Andrew Stubbs  <ams@codesourcery.com>

	Merge from FSF trunk SVN revision 184223.

Imported GCC from FSF trunk SVN revision 183796.