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2016-06-13 Andre Vieira <andre.simoesdiasvieira@arm.com>
Backport from Mainline
2015-09-25 Vladimir Makarov <vmakarov@redhat.com>
PR target/61578
* lra-constarints.c (match_reload): Check presence of the input pseudo
in the output pseudo.
2016-06-13 Andre Vieira <andre.simoesdiasvieira@arm.com>
Backport from Mainline
2015-09-01 Vladimir Makarov <vmakarov@redhat.com>
PR target/61578
* lra-lives.c (process_bb_lives): Process move pseudos with the
same value for copies and preferences
* lra-constraints.c (match_reload): Create match reload pseudo
with the same value from single dying input pseudo.
2016-05-25 Thomas Preud'homme <thomas.preudhomme@arm.com>
* config/arm/t-baremetal (MULTILIB_MATCHES): Match ARMv8-M Mainline
with DSP extensions to ARMv8-M Mainline.
2016-03-30 Andre Vieira <andre.simoesdiasvieira@arm.com>
Thomas Preud'homme <thomas.preudhomme@arm.com>
* config/arm/arm-builtins.c (arm_builtins): Define
ARM_BUILTIN_CMSE_NONSECURE_CALLER.
(bdesc_2arg): Add line for cmse_nonsecure_caller.
(arm_init_builtins): Init for cmse_nonsecure_caller.
(arm_expand_builtin): Handle cmse_nonsecure_caller.
* config/arm/arm_cmse.h (cmse_nonsecure_caller): New.
2016-03-30 Andre Vieira <andre.simoesdiasvieira@arm.com>
Thomas Preud'homme <thomas.preudhomme@arm.com>
* config/arm/arm.c (detect_cmse_nonsecure_call): New.
(cmse_nonsecure_call_clear_caller_saved): New.
* config/arm/arm-protos.h (detect_cmse_nonsecure_call): New.
* config/arm/arm.md (call): Handle cmse_nonsecure_entry.
(call_value): Likewise.
(nonsecure_call_internal): New.
(nonsecure_call_value_internal): New.
* config/arm/thumb1.md (*nonsecure_call_reg_thumb1_v5): New.
(*nonsecure_call_value_reg_thumb1_v5): New.
* config/arm/thumb2.md (*nonsecure_call_reg_thumb2): New.
(*nonsecure_call_value_reg_thumb2): New.
* config/arm/unspecs.md (UNSPEC_NONSECURE_MEM): New.
2016-03-30 Andre Vieira <andre.simoesdiasvieira@arm.com>
Thomas Preud'homme <thomas.preudhomme@arm.com>
* config/arm/arm.c (gimplify.h): New include.
(arm_handle_cmse_nonsecure_call): New.
(arm_attribute_table): Added cmse_nonsecure_call.
2016-03-30 Andre Vieira <andre.simoesdiasvieira@arm.com>
Thomas Preud'homme <thomas.preudhomme@arm.com>
* config/arm/arm.c (output_return_instruction): Clear registers.
(thumb2_expand_return): Likewise.
(thumb1_expand_epilogue): Likewise.
(arm_expand_epilogue): Likewise.
(cmse_nonsecure_entry_clear_before_return): New.
* config/arm/thumb1.md (*epilogue_insns): Change length attribute.
* config/arm/thumb2.md (*thumb2_return): Likewise.
2016-03-30 Andre Vieira <andre.simoesdiasvieira@arm.com>
Thomas Preud'homme <thomas.preudhomme@arm.com>
* config/arm/arm.c (use_return_insn): Change to return with bxns when
cmse_nonsecure_entry.
(output_return_instruction): Likewise.
(arm_output_function_prologue): Likewise.
(thumb_pop): Likewise.
(thumb_exit): Likewise.
(arm_function_ok_for_sibcall): Disable sibcall for entry functions.
(arm_asm_declare_function_name): New.
(thumb1_cmse_nonsecure_entry_return): New.
* config/arm/arm-protos.h (arm_asm_declare_function_name): New.
* config/arm/elf.h (ASM_DECLARE_FUNCTION_NAME): Redefine to use
arm_asm_declare_function_name.
2016-03-30 Andre Vieira <andre.simoesdiasvieira@arm.com>
Thomas Preud'homme <thomas.preudhomme@arm.com>
* config/arm/arm.c (arm_handle_cmse_nonsecure_entry): New.
(arm_attribute_table): Added cmse_nonsecure_entry
(arm_compute_func_type): Handle cmse_nonsecure_entry.
(cmse_func_args_or_return_in_stack): New.
(arm_handle_cmse_nonsecure_entry): New.
* config/arm/arm.h (ARM_FT_CMSE_ENTRY): New macro define.
(IS_CMSE_ENTRY): Likewise.
2016-03-30 Andre Vieira <andre.simoesdiasvieira@arm.com>
Thomas Preud'homme <thomas.preudhomme@arm.com>
* config.gcc (extra_headers): Added arm_cmse.h.
* config/arm/arm-arches.def (armv8-m.base): Add FL_CMSE.
(armv8-m.main): Likewise.
(armv8-m.main+dsp): Likewise.
* config/arm/arm-protos.h (arm_is_constant_pool_ref): Define
FL_CMSE.
* config/arm.c (arm_arch_cmse): New.
(arm_option_override): New error for unsupported cmse target.
* config/arm/arm.h (arm_arch_cmse): New.
(arm_cpu_builtins): Added __ARM_FEATURE_CMSE macro.
* config/arm/arm.opt (mcmse): New.
* doc/invoke.texi (ARM Options): Add -mcmse.
* doc/extend.texi (ACLE): Add CMSE.
* config/arm/arm_cmse.h: New file.
2016-03-30 Andre Vieira <andre.simoesdiasvieira@arm.com>
Avoiding target_header_dir=yes for --with-headers=yes.
2015-10-12 Ulrich Weigand <uweigand@de.ibm.com>
* configure.ac: Dont set target_header_dir to "yes" if with_headers is
passed the value "yes".
2016-03-10 Andre Vieira <andre.simoesdiasvieira@arm.com>
* gcc/config/arm/t-baremetal: Add cortex-r8.
2016-03-07 Andre Vieira <andre.simoesdiasvieira@arm.com>
* config/arm/arm-cores.def (cortex-r8): New.
* config/arm/arm-tables.opt (cortex-r8): Regenerate.
* config/arm/arm-tune.md: Likewise.
* gcc/doc/invoke.texi: Add cortex-r8 to list of cpu values.
2015-12-17 Thomas Preud'homme <thomas.preudhomme@arm.com>
* Makefile.in (with_multilib_list): New variables substituted by
configure.
* config.gcc: Handle bare-metal multilibs in --with-multilib-list
option.
* config/arm/t-baremetal: New file.
* configure.ac (with_multilib_list): New AC_SUBST.
* configure: Regenerate.
* doc/install.texi (--with-multilib-list): Update description for
arm*-*-* targets to mention bare-metal multilibs.
2015-12-17 Thomas Preud'homme <thomas.preudhomme@arm.com>
* config.gcc: Error out when conflicting multilib is detected. Do not
loop over multilibs since no combination is legal.
2015-12-17 Thomas Preud'homme <thomas.preudhomme@arm.com>
* doc/install.texi (--with-multilib-list): Describe the meaning of the
option for arm*-*-* targets.
2015-12-17 Thomas Preud'homme <thomas.preudhomme@arm.com>
* config/arm/arm.c (arm_print_operand_punct_valid_p): Make %? valid
for Thumb-1.
* config/arm/arm.h (TARGET_HAVE_CBZ): Define.
(TARGET_IDIV): Set for all Thumb targets provided they have hardware
divide feature.
* config/arm/thumb1.md (thumb1_cbz): New insn.
2015-12-17 Thomas Preud'homme <thomas.preudhomme@arm.com>
* config/arm/arm.h (TARGET_HAVE_MOVT): Include ARMv8-M as having MOVT.
* config/arm/arm.c (arm_arch_name): (const_ok_for_op): Check MOVT/MOVW
availability with TARGET_HAVE_MOVT.
(thumb_legitimate_constant_p): Legalize high part of a label_ref as a
constant.
(thumb1_rtx_costs): Also return 0 if setting a half word constant and
movw is available.
(thumb1_size_rtx_costs): Make set of half word constant also cost 1
extra instruction if MOVW is available. Make constant with bottom half
word zero cost 2 instruction if MOVW is available.
* config/arm/arm.md (define_attr "arch"): Add v8mb.
(define_attr "arch_enabled"): Set to yes if arch value is v8mb and
target is ARMv8-M Baseline.
* config/arm/thumb1.md (thumb1_movdi_insn): Add ARMv8-M Baseline only
alternative for constants satisfying j constraint.
(thumb1_movsi_insn): Likewise.
(movsi splitter for K alternative): Tighten condition to not trigger
if movt is available and j constraint is satisfied.
(Pe immediate splitter): Likewise.
(thumb1_movhi_insn): Add ARMv8-M Baseline only alternative for
constant fitting in an halfword to use movw.
* doc/sourcebuild.texi (arm_thumb1_movt_ko): Document new ARM
effective target.
2015-12-17 Thomas Preud'homme <thomas.preudhomme@arm.com>
* config/arm/arm.h (TARGET_USE_MOVT): Check MOVT/MOVW availability
with TARGET_HAVE_MOVT.
(TARGET_HAVE_MOVT): Define.
* config/arm/arm.c (const_ok_for_op): Check MOVT/MOVW
availability with TARGET_HAVE_MOVT.
* config/arm/arm.md (arm_movt): Use TARGET_HAVE_MOVT to check movt
availability.
(addsi splitter): Use TARGET_USE_MOVT to check whether to use
movt + movw.
(symbol_refs movsi splitter): Remove TARGET_32BIT check.
(arm_movtas_ze): Use TARGET_HAVE_MOVT to check movt availability.
* config/arm/constraints.md (define_constraint "j"): Use
TARGET_HAVE_MOVT to check movt availability.
2015-12-17 Thomas Preud'homme <thomas.preudhomme@arm.com>
* config/arm/arm-protos.h: Reindent FL_FOR_* macro definitions.
2015-12-17 Thomas Preud'homme <thomas.preudhomme@arm.com>
* config/arm/arm-arches.def (armv8-m.base): Define new architecture.
(armv8-m.main): Likewise.
(armv8-m.main+dsp): Likewise
* config/arm/arm-protos.h (FL_FOR_ARCH8M_BASE): Define.
(FL_FOR_ARCH8M_MAIN): Likewise.
* config/arm/arm-tables.opt: Regenerate.
* config/arm/bpabi.h: Add armv8-m.base, armv8-m.main and
armv8-m.main+dsp to BE8_LINK_SPEC.
* config/arm/arm.h (TARGET_HAVE_LDACQ): Exclude ARMv8-M Baseline.
(enum base_architecture): Add BASE_ARCH_8M_BASE and BASE_ARCH_8M_MAIN.
(TARGET_ARM_V8M): Define.
* config/arm/arm.c (arm_arch_name): Increase size to work with ARMv8-M
Baseline and Mainline.
(arm_option_override_internal): Also disable arm_restrict_it when
!arm_arch_notm.
(arm_file_start): Increase architecture buffer size.
* doc/invoke.texi: Document architectures armv8-m.base, armv8-m.main
and armv8-m.main+dsp.
(mno-unaligned-access): Clarify that this is disabled by default for
ARMv8-M Baseline architecture as well.
2015-12-17 Thomas Preud'homme <thomas.preudhomme@arm.com>
* config/arm/elf.h: Use __ARM_ARCH_ISA_THUMB and __ARM_ARCH_ISA_ARM to
decide whether to prevent some libgcc routines being included for some
multilibs rather than __ARM_ARCH_6M__ and add comment to indicate the
link between this condition and the one in
libgcc/config/arm/lib1func.S.
* config/arm/arm.h (TARGET_ARM_V6M): Add check to TARGET_ARM_ARCH.
(TARGET_ARM_V7M): Likewise.
2015-12-16 Tejas Belagod <tejas.belagod@arm.com>
Backport from Mainline
2015-11-25 Jan Hubicka <jh@suse.cz>
* ipa-visibility.c (cgraph_externally_visible_p,
varpool_node::externally_visible_p): When doing incremental linking,
hidden symbols may be still used later.
(update_visibility_by_resolution_info): Do not drop weak during
incremental link.
(function_and_variable_visibility): Fix formating.
* flag-types.h (lto_linker_output): Declare.
* common.opt 9flag_incremental_link): New flag.
2015-12-10 Tejas Belagod <tejas.belagod@arm.com>
Backport from Mainline
2015-04-22 Hale Wang <hale.wang@arm.com>
Terry Guo <terry.guo@arm.com>
PR rtl-optimization/64818
* combine.c (can_combine_p): Don't combine user-specified
register if it is in an asm input.
2015-12-04 Andre Vieira <andre.simoesdiasvieira@arm.com>
Backport from mainline:
2015-10-09 Andre Vieira <andre.simoesdiasvieira@arm.com>
* match.pd: ((X inner_op C0) outer_op C1) New pattern.
((X & C2) << C1): Expand to...
(X {&,^,|} C2 << C1): ...This.
((X & C2) >> C1): Expand to...
(X {&,^,|} C2 >> C1): ...This.
2015-07-07 Richard Biener <rguenther@suse.de>
* fold-const.c (fold_binary_loc): Move
(X & C2) << C1 -> (X << C1) & (C2 << C1) simplification ...
* match.pd: ... here.
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