14 files changed, 864 insertions, 1 deletions
diff --git a/c++tools/ChangeLog b/c++tools/ChangeLog
index a659b5d..348bfa5 100644
--- a/c++tools/ChangeLog
+++ b/c++tools/ChangeLog
@@ -1,3 +1,18 @@
+2020-12-16  Nathan Sidwell  <nathan@acm.org>
+
+	* Makefile.in (INSTALL): Replace with ...
+	(INSTALL_PROGRAM): ... this.
+	(INSTALL_STRIP_PROGRAM): New.
+	(install-strip): New target.
+	(install): Use INSTALL_PROGRAM.
+	* configure.ac: Add INSTALL_PROGRAM.
+	* configure: Regenerated.
+
+2020-12-16  Nathan Sidwell  <nathan@acm.org>
+
+	* Makefile.in (install): Do not use -p, use mkinstalldirs.
+	(clean): Fix typo.
+
 2020-12-15  Nathan Sidwell  <nathan@acm.org>
 
 	* Makefile.in: New.
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 0b20c23..823ff97 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,420 @@
+2020-12-17  Richard Sandiford  <richard.sandiford@arm.com>
+
+	* fwprop.c: Rewrite to use the RTL SSA framework.
+
+2020-12-17  Richard Sandiford  <richard.sandiford@arm.com>
+
+	* configure.ac: Add rtl-ssa to the list of dependence directories.
+	* configure: Regenerate.
+	* Makefile.in (rtl-ssa-warn): New variable.
+	(OBJS): Add the rtl-ssa object files.
+	* emit-rtl.h (rtl_data::ssa): New field.
+	* rtl-ssa.h: New file.
+	* system.h: Include <functional> when INCLUDE_FUNCTIONAL is defined.
+	* rtl-ssa/access-utils.h: Likewise.
+	* rtl-ssa/accesses.h: New file.
+	* rtl-ssa/accesses.cc: Likewise.
+	* rtl-ssa/blocks.h: New file.
+	* rtl-ssa/blocks.cc: Likewise.
+	* rtl-ssa/change-utils.h: Likewise.
+	* rtl-ssa/changes.h: New file.
+	* rtl-ssa/changes.cc: Likewise.
+	* rtl-ssa/functions.h: New file.
+	* rtl-ssa/functions.cc: Likewise.
+	* rtl-ssa/insn-utils.h: Likewise.
+	* rtl-ssa/insns.h: New file.
+	* rtl-ssa/insns.cc: Likewise.
+	* rtl-ssa/internals.inl: Likewise.
+	* rtl-ssa/is-a.inl: Likewise.
+	* rtl-ssa/member-fns.inl: Likewise.
+	* rtl-ssa/movement.h: Likewise.
+
+2020-12-17  Richard Sandiford  <richard.sandiford@arm.com>
+
+	* doc/rtl.texi (RTL SSA): New node.
+
+2020-12-17  Richard Sandiford  <richard.sandiford@arm.com>
+
+	* rtl.h (simple_regno_set): Declare.
+	* rtlanal.c (simple_regno_set): New function.
+
+2020-12-17  Richard Sandiford  <richard.sandiford@arm.com>
+
+	* rtlanal.h: New file.
+	(MEM_REGNO): New constant.
+	(rtx_obj_flags): New namespace.
+	(rtx_obj_reference, rtx_properties): New classes.
+	(growing_rtx_properties, vec_rtx_properties_base): Likewise.
+	(vec_rtx_properties): New alias.
+	* rtlanal.c: Include it.
+	(rtx_properties::try_to_add_reg): New function.
+	(rtx_properties::try_to_add_dest): Likewise.
+	(rtx_properties::try_to_add_src): Likewise.
+	(rtx_properties::try_to_add_pattern): Likewise.
+	(rtx_properties::try_to_add_insn): Likewise.
+	(vec_rtx_properties_base::grow): Likewise.
+
+2020-12-17  Richard Sandiford  <richard.sandiford@arm.com>
+
+	* recog.h (insn_change_watermark): New class.
+
+2020-12-17  Richard Sandiford  <richard.sandiford@arm.com>
+
+	* recog.h (insn_propagation): New class.
+	* recog.c (insn_propagation::apply_to_mem_1): New function.
+	(insn_propagation::apply_to_rvalue_1): Likewise.
+	(insn_propagation::apply_to_lvalue_1): Likewise.
+	(insn_propagation::apply_to_pattern_1): Likewise.
+	(insn_propagation::apply_to_pattern): Likewise.
+	(insn_propagation::apply_to_rvalue): Likewise.
+
+2020-12-17  Richard Sandiford  <richard.sandiford@arm.com>
+
+	* recog.h (temporarily_undo_changes, redo_changes): Declare.
+	* recog.c (temporarily_undone_changes): New variable.
+	(validate_change_1, confirm_change_group): Check that it's zero.
+	(cancel_changes): Likewise.
+	(swap_change, temporarily_undo_changes): New functions.
+	(redo_changes): Likewise.
+
+2020-12-17  Richard Sandiford  <richard.sandiford@arm.com>
+
+	* recog.h (validate_change_xveclen): Declare.
+	* recog.c (change_t::old_len): New field.
+	(validate_change_1): Add a new_len parameter.  Conditionally
+	replace the XVECLEN of an rtx, avoiding single-element PARALLELs.
+	(validate_change_xveclen): New function.
+	(cancel_changes): Undo changes made by validate_change_xveclen.
+
+2020-12-17  Richard Sandiford  <richard.sandiford@arm.com>
+
+	* rtl.h (simplify_context): New class.
+	(simplify_unary_operation, simplify_binary_operation): Use it.
+	(simplify_ternary_operation, simplify_relational_operation): Likewise.
+	(simplify_subreg, simplify_gen_unary, simplify_gen_binary): Likewise.
+	(simplify_gen_ternary, simplify_gen_relational): Likewise.
+	(simplify_gen_subreg, lowpart_subreg): Likewise.
+	* simplify-rtx.c (simplify_gen_binary): Turn into a member function
+	of simplify_context.
+	(simplify_gen_unary, simplify_gen_ternary, simplify_gen_relational)
+	(simplify_truncation, simplify_unary_operation): Likewise.
+	(simplify_unary_operation_1, simplify_byte_swapping_operation)
+	(simplify_associative_operation, simplify_logical_relational_operation)
+	(simplify_binary_operation, simplify_binary_operation_series)
+	(simplify_distributive_operation, simplify_plus_minus): Likewise.
+	(simplify_relational_operation, simplify_relational_operation_1)
+	(simplify_cond_clz_ctz, simplify_merge_mask): Likewise.
+	(simplify_ternary_operation, simplify_subreg, simplify_gen_subreg)
+	(lowpart_subreg): Likewise.
+	(simplify_binary_operation_1): Likewise.  Test mem_depth when
+	deciding whether the ASHIFT or MULT form is canonical.
+	(simplify_merge_mask): Use simplify_context.
+
+2020-12-17  Richard Sandiford  <richard.sandiford@arm.com>
+
+	* rtl.h (register_asm_p): Declare.
+	* recog.c (verify_changes): Split out the test for whether
+	a hard register is a register asm to...
+	* rtlanal.c (register_asm_p): ...this new function.
+
+2020-12-17  Richard Sandiford  <richard.sandiford@arm.com>
+
+	* print-rtl.h (print_insn_with_notes): Declare.
+	* print-rtl.c (print_insn_with_notes): Make non-static
+
+2020-12-17  Richard Sandiford  <richard.sandiford@arm.com>
+
+	* cfgrtl.h (update_cfg_for_uncondjump): Declare.
+	* combine.c (update_cfg_for_uncondjump): Move to...
+	* cfgrtl.c: ...here.
+
+2020-12-17  Richard Sandiford  <richard.sandiford@arm.com>
+
+	* vec.h (array_slice): New class.
+
+2020-12-17  Richard Sandiford  <richard.sandiford@arm.com>
+
+	* Makefile.in (OBJS): Add splay-tree-utils.o.
+	* system.h: Include <array> when INCLUDE_ARRAY is defined.
+	* selftest.h (splay_tree_cc_tests): Declare.
+	* selftest-run-tests.c (selftest::run_tests): Run splay_tree_cc_tests.
+	* splay-tree-utils.h: New file.
+	* splay-tree-utils.tcc: Likewise.
+	* splay-tree-utils.cc: Likewise.
+
+2020-12-17  Richard Sandiford  <richard.sandiford@arm.com>
+
+	* mux-utils.h: New file.
+
+2020-12-17  Richard Sandiford  <richard.sandiford@arm.com>
+
+	* obstack-utils.h: New file.
+
+2020-12-17  Richard Sandiford  <richard.sandiford@arm.com>
+
+	* iterator-utils.h (derived_iterator): New class.
+	(const_derived_container, wrapper_iterator): Likewise.
+	(list_iterator): Likewise.
+
+2020-12-17  Richard Sandiford  <richard.sandiford@arm.com>
+
+	* hard-reg-set.h (global_reg_set): Declare.
+	* reginfo.c (global_reg_set): New variable.
+	(init_reg_sets_1, globalize_reg): Update it when globalizing
+	registers.
+
+2020-12-16  Piotr Kubaj  <pkubaj@FreeBSD.org>
+
+	* config.gcc (powerpc*le-*-freebsd*): Add.
+	* configure.ac (powerpc*le-*-freebsd*): Ditto.
+	* configure: Regenerate.
+	* config/rs6000/freebsd64.h (ASM_SPEC_COMMON): Use ENDIAN_SELECT.
+	(DEFAULT_ASM_ENDIAN): Add little endian support.
+	(LINK_OS_FREEBSD_SPEC64): Ditto.
+
+2020-12-16  Takayuki 'January June' Suwa  <jjsuwa_sys3175@yahoo.co.jp>
+
+	* config/xtensa/xtensa.c (xtensa_emit_move_sequence): Try to
+	replace 'l32r' with 'movi' + 'slli' when optimizing for size.
+	* config/xtensa/xtensa.md (movdi): Split loading DI mode constant
+	into register pair into two loads of SI mode constants.
+
+2020-12-16  Tamar Christina  <tamar.christina@arm.com>
+
+	* config/arm/arm_mve.h (__arm_vcmulq_rot90_f16):
+	(__arm_vcmulq_rot270_f16, _arm_vcmulq_rot180_f16, __arm_vcmulq_f16,
+	__arm_vcmulq_rot90_f32, __arm_vcmulq_rot270_f32,
+	__arm_vcmulq_rot180_f32, __arm_vcmulq_f32, __arm_vcmlaq_f16,
+	__arm_vcmlaq_rot180_f16, __arm_vcmlaq_rot270_f16,
+	__arm_vcmlaq_rot90_f16, __arm_vcmlaq_f32, __arm_vcmlaq_rot180_f32,
+	__arm_vcmlaq_rot270_f32, __arm_vcmlaq_rot90_f32): Update builtin calls.
+	* config/arm/arm_mve_builtins.def (vcmulq_f, vcmulq_rot90_f,
+	vcmulq_rot180_f, vcmulq_rot270_f, vcmlaq_f, vcmlaq_rot90_f,
+	vcmlaq_rot180_f, vcmlaq_rot270_f): Removed.
+	(vcmulq, vcmulq_rot90, vcmulq_rot180, vcmulq_rot270, vcmlaq,
+	vcmlaq_rot90, vcmlaq_rot180, vcmlaq_rot270): New.
+	* config/arm/iterators.md (mve_rot): Add UNSPEC_VCMLA, UNSPEC_VCMLA90,
+	UNSPEC_VCMLA180, UNSPEC_VCMLA270, UNSPEC_VCMUL, UNSPEC_VCMUL90,
+	UNSPEC_VCMUL180, UNSPEC_VCMUL270.
+	(VCMUL): New.
+	* config/arm/mve.md (mve_vcmulq_f<mode, mve_vcmulq_rot180_f<mode>,
+	mve_vcmulq_rot270_f<mode>, mve_vcmulq_rot90_f<mode>, mve_vcmlaq_f<mode>,
+	mve_vcmlaq_rot180_f<mode>, mve_vcmlaq_rot270_f<mode>,
+	mve_vcmlaq_rot90_f<mode>): Removed.
+	(mve_vcmlaq<mve_rot><mode>, mve_vcmulq<mve_rot><mode>,
+	mve_vcaddq<mve_rot><mode>, cadd<rot><mode>3, mve_vcaddq<mve_rot><mode>):
+	New.
+	* config/arm/unspecs.md (UNSPEC_VCMUL90, UNSPEC_VCMUL270, UNSPEC_VCMUL,
+	UNSPEC_VCMUL180): New.
+	(VCMULQ_F, VCMULQ_ROT180_F, VCMULQ_ROT270_F, VCMULQ_ROT90_F,
+	VCMLAQ_F, VCMLAQ_ROT180_F, VCMLAQ_ROT90_F, VCMLAQ_ROT270_F): Removed.
+
+2020-12-16  Tamar Christina  <tamar.christina@arm.com>
+
+	* config/arm/arm_mve.h (__arm_vcaddq_rot90_u8, __arm_vcaddq_rot270_u8,
+	__arm_vcaddq_rot90_s8, __arm_vcaddq_rot270_s8,
+	__arm_vcaddq_rot90_u16, __arm_vcaddq_rot270_u16,
+	__arm_vcaddq_rot90_s16, __arm_vcaddq_rot270_s16,
+	__arm_vcaddq_rot90_u32, __arm_vcaddq_rot270_u32,
+	__arm_vcaddq_rot90_s32, __arm_vcaddq_rot270_s32,
+	__arm_vcaddq_rot90_f16, __arm_vcaddq_rot270_f16,
+	__arm_vcaddq_rot90_f32, __arm_vcaddq_rot270_f32):  Update builtin calls.
+	* config/arm/arm_mve_builtins.def (vcaddq_rot90_u, vcaddq_rot270_u,
+	vcaddq_rot90_s, vcaddq_rot270_s, vcaddq_rot90_f, vcaddq_rot270_f):
+	Removed.
+	(vcaddq_rot90, vcaddq_rot270): New.
+	* config/arm/constraints.md (Dz): Include MVE.
+	* config/arm/iterators.md (mve_rot): New.
+	(supf): Remove VCADDQ_ROT270_S, VCADDQ_ROT270_U, VCADDQ_ROT90_S,
+	VCADDQ_ROT90_U.
+	(VCADDQ_ROT270, VCADDQ_ROT90): Removed.
+	* config/arm/mve.md (mve_vcaddq_rot270_<supf><mode,
+	mve_vcaddq_rot90_<supf><mode>, mve_vcaddq_rot270_f<mode>,
+	mve_vcaddq_rot90_f<mode>): Removed.
+	(mve_vcaddq<mve_rot><mode>, mve_vcaddq<mve_rot><mode>): New.
+	* config/arm/unspecs.md (VCADDQ_ROT270_S, VCADDQ_ROT90_S,
+	VCADDQ_ROT270_U, VCADDQ_ROT90_U, VCADDQ_ROT270_F,
+	VCADDQ_ROT90_F): Removed.
+	* config/arm/vec-common.md (cadd<rot><mode>3): New.
+
+2020-12-16  Tamar Christina  <tamar.christina@arm.com>
+
+	* config/aarch64/aarch64-simd.md (cadd<rot><mode>3): New.
+	* config/aarch64/iterators.md (SVE2_INT_CADD_OP): New.
+	* config/aarch64/aarch64-sve.md (cadd<rot><mode>3): New.
+	* config/aarch64/aarch64-sve2.md (cadd<rot><mode>3): New.
+
+2020-12-16  Pat Haugen  <pthaugen@linux.ibm.com>
+
+	* config/rs6000/mma.md (*movxo, mma_<vvi4i4i8>, mma_<avvi4i4i8>,
+	mma_<vvi4i4i2>, mma_<avvi4i4i2>, mma_<vvi4i4>, mma_<avvi4i4>,
+	mma_<pvi4i2>, mma_<apvi4i2>, mma_<vvi4i4i4>, mma_<avvi4i4i4>):
+	Remove explicit setting of length attribute.
+
+2020-12-16  Jakub Jelinek  <jakub@redhat.com>
+
+	* varasm.c (default_elf_asm_named_section): Always force
+	section flags even for sections with SECTION_LINK_ORDER flag.
+
+2020-12-16  H.J. Lu  <hjl.tools@gmail.com>
+
+	PR target/98146
+	* defaults.h (SUPPORTS_SHF_GNU_RETAIN): New.
+	* varasm.c (get_section): Replace HAVE_GAS_SHF_GNU_RETAIN with
+	SUPPORTS_SHF_GNU_RETAIN.
+	(resolve_unique_section): Likewise.
+	(get_variable_section): Likewise.
+	(switch_to_section): Likewise.
+
+2020-12-16  H.J. Lu  <hjl.tools@gmail.com>
+
+	PR target/98146
+	* varasm.c (switch_to_section): Warn when a symbol without used
+	attribute and a symbol with used attribute are placed in the
+	section with the same name.
+
+2020-12-16  H.J. Lu  <hjl.tools@gmail.com>
+
+	PR target/98146
+	* output.h (switch_to_section): Add a tree argument, default to
+	nullptr.
+	* varasm.c (get_section): If the SECTION_RETAIN bit doesn't match,
+	return and switch to a new section later.
+	(assemble_start_function): Pass decl to switch_to_section.
+	(assemble_variable): Likewise.
+	(switch_to_section): If the SECTION_RETAIN bit doesn't match,
+	switch to a new section.
+
+2020-12-16  Jakub Jelinek  <jakub@redhat.com>
+
+	PR tree-optimization/96239
+	* gimple-ssa-store-merging.c (find_bswap_or_nop): Handle a vector
+	CONSTRUCTOR.
+	(bswap_replace): Likewise.
+
+2020-12-16  Martin Liska  <mliska@suse.cz>
+
+	* common.opt: Remove usage of Report.
+	* config/aarch64/aarch64.opt: Ditto.
+	* config/alpha/alpha.opt: Ditto.
+	* config/arc/arc.opt: Ditto.
+	* config/arm/arm.opt: Ditto.
+	* config/avr/avr.opt: Ditto.
+	* config/bfin/bfin.opt: Ditto.
+	* config/bpf/bpf.opt: Ditto.
+	* config/c6x/c6x.opt: Ditto.
+	* config/cr16/cr16.opt: Ditto.
+	* config/cris/cris.opt: Ditto.
+	* config/cris/elf.opt: Ditto.
+	* config/csky/csky.opt: Ditto.
+	* config/darwin.opt: Ditto.
+	* config/fr30/fr30.opt: Ditto.
+	* config/frv/frv.opt: Ditto.
+	* config/ft32/ft32.opt: Ditto.
+	* config/gcn/gcn.opt: Ditto.
+	* config/i386/cygming.opt: Ditto.
+	* config/i386/i386.opt: Ditto.
+	* config/ia64/ia64.opt: Ditto.
+	* config/ia64/ilp32.opt: Ditto.
+	* config/linux-android.opt: Ditto.
+	* config/linux.opt: Ditto.
+	* config/lm32/lm32.opt: Ditto.
+	* config/m32r/m32r.opt: Ditto.
+	* config/m68k/m68k.opt: Ditto.
+	* config/mcore/mcore.opt: Ditto.
+	* config/microblaze/microblaze.opt: Ditto.
+	* config/mips/mips.opt: Ditto.
+	* config/mmix/mmix.opt: Ditto.
+	* config/mn10300/mn10300.opt: Ditto.
+	* config/moxie/moxie.opt: Ditto.
+	* config/msp430/msp430.opt: Ditto.
+	* config/nds32/nds32.opt: Ditto.
+	* config/nios2/elf.opt: Ditto.
+	* config/nios2/nios2.opt: Ditto.
+	* config/nvptx/nvptx.opt: Ditto.
+	* config/pa/pa.opt: Ditto.
+	* config/pdp11/pdp11.opt: Ditto.
+	* config/pru/pru.opt: Ditto.
+	* config/riscv/riscv.opt: Ditto.
+	* config/rl78/rl78.opt: Ditto.
+	* config/rs6000/aix64.opt: Ditto.
+	* config/rs6000/linux64.opt: Ditto.
+	* config/rs6000/rs6000.opt: Ditto.
+	* config/rs6000/sysv4.opt: Ditto.
+	* config/rx/elf.opt: Ditto.
+	* config/rx/rx.opt: Ditto.
+	* config/s390/s390.opt: Ditto.
+	* config/s390/tpf.opt: Ditto.
+	* config/sh/sh.opt: Ditto.
+	* config/sol2.opt: Ditto.
+	* config/sparc/long-double-switch.opt: Ditto.
+	* config/sparc/sparc.opt: Ditto.
+	* config/tilegx/tilegx.opt: Ditto.
+	* config/tilepro/tilepro.opt: Ditto.
+	* config/v850/v850.opt: Ditto.
+	* config/visium/visium.opt: Ditto.
+	* config/vms/vms.opt: Ditto.
+	* config/vxworks.opt: Ditto.
+	* config/xtensa/xtensa.opt: Ditto.
+
+2020-12-16  Martin Liska  <mliska@suse.cz>
+
+	* doc/options.texi: Remove Report keyword.
+	* opt-functions.awk: Print error when Report keyword
+	is used.
+	* optc-gen.awk: Do not handle Report keyword.
+	* opts.h (struct cl_option): Remove cl_report bitfield flag.
+
+2020-12-16  Martin Liska  <mliska@suse.cz>
+
+	PR sanitizer/97868
+	* common.opt: Add new warning -Wtsan.
+	* doc/invoke.texi: Likewise.
+	* tsan.c (instrument_builtin_call): Warn users about unsupported
+	std::atomic_thread_fence.
+
+2020-12-16  Martin Liska  <mliska@suse.cz>
+
+	PR rtl-optimization/98271
+	PR rtl-optimization/98276
+	PR tree-optimization/98279
+	* opts-common.c (set_option): Do not allow overflow for integer
+	arguments.
+
+2020-12-16  Eric Botcazou  <ebotcazou@adacore.com>
+
+	PR tree-optimization/98272
+	* tree-switch-conversion.c (bit_test_cluster::emit): When finding
+	out whether the entry test can be merged in the bit test, do the
+	computation using the type of the index expression.
+
+2020-12-16  Kewen Lin  <linkw@linux.ibm.com>
+
+	* config/rs6000/rs6000.c (rs6000_expand_vector_init): Use
+	paradoxical subreg instead of zero_extend for QI/HI promotion.
+
+2020-12-16  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
+
+	PR target/66791
+	* config/arm/arm_neon.h: Replace calls to __builtin_vcgt* by
+	<, > operators in vclt and vcgt intrinsics respectively.
+	* config/arm/arm_neon_builtins.def: Remove entry for
+	vcgt and vcgtu.
+
+2020-12-16  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
+
+	PR target/66791
+	* config/arm/arm_neon.h: Replace calls to __builtin_vneg* by - operator
+	in vneg intrinsics.
+	* config/arm/arm_neon_builtins.def: Remove entry for vneg.
+
+2020-12-16  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>
+
+	PR target/66791
+	* config/arm/arm_neon.h: Replace calls to __builtin_vcreate*
+	in vcreate intrinsics.
+	* config/arm/arm_neon_builtins.def: Remove entry for vcreate.
+
 2020-12-15  Jakub Jelinek  <jakub@redhat.com>
 
 	PR tree-optimization/96094
diff --git a/gcc/DATESTAMP b/gcc/DATESTAMP
index 4bd61d4..8030b5a 100644
--- a/gcc/DATESTAMP
+++ b/gcc/DATESTAMP
@@ -1 +1 @@
-20201216
+20201217
diff --git a/gcc/ada/ChangeLog b/gcc/ada/ChangeLog
index 21bc46b..35d3bfa 100644
--- a/gcc/ada/ChangeLog
+++ b/gcc/ada/ChangeLog
@@ -1,3 +1,121 @@
+2020-12-16  Arnaud Charlet  <charlet@adacore.com>
+
+	* ali.ads, ali.adb, bindo-writers.adb, lib-writ.adb (Scope):
+	Renamed to IS_Scope.
+
+2020-12-16  Joffrey Huguet  <huguet@adacore.com>
+
+	* libgnat/a-strfix.ads: Add postconditions and contract cases to
+	subprograms.
+
+2020-12-16  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_ch5.adb (Analyze_Iterator_Specification): If iterator
+	filter is present, preanalyze filter without expansion.
+	(Analyze_Loop_Parameter_Specification): When
+	loop_Parameter_Specification is rewritten as
+	Iterator_Specification, transfer Iterator_Filter if present.
+
+2020-12-16  Doug Rupp  <rupp@adacore.com>
+
+	* libgnat/s-objrea.ads (Object_Arch): Add ARM enum
+	* libgnat/s-objrea.adb (Initialize): Add EM_ARM case.
+	(Read_Address): Add ARM case to 32bit read.
+	* Makefile.rtl: Add trasym units to the runtime for armhf-linux.
+
+2020-12-16  Dmitriy Anisimkov  <anisimko@adacore.com>
+
+	* libgnat/g-expect.adb (Non_Blocking_Spawn): Deallocate elements
+	on Arg_List after calling Set_Up_Child_Communications.
+
+2020-12-16  Piotr Trojanek  <trojanek@adacore.com>
+
+	* par-ch3.adb (P_Modular_Type_Definition): Remove colon from
+	error message.
+	* sem_ch11.adb (Check_Duplication): Likewise.
+	* sem_ch3.adb (Derived_Type_Declaration): Likewise.
+
+2020-12-16  Piotr Trojanek  <trojanek@adacore.com>
+
+	* par-ch12.adb (P_Formal_Object_Declarations): Refine types to
+	Pos.
+
+2020-12-16  Piotr Trojanek  <trojanek@adacore.com>
+
+	* impunit.adb (Not_Impl_Defined_Unit): Fix typo in iteration
+	over Non_Imp_File_Names_12 array.
+
+2020-12-16  Piotr Trojanek  <trojanek@adacore.com>
+
+	* exp_ch9.adb, sem_warn.adb: Simplify membership test.
+
+2020-12-16  Piotr Trojanek  <trojanek@adacore.com>
+
+	* exp_ch6.adb, exp_util.adb, sem_ch4.adb, sem_disp.adb,
+	sem_elab.adb: Simplify membership test.
+
+2020-12-16  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* libgnat/s-powtab.ads (Maxpow): Use explicit formula in comment.
+
+2020-12-16  Philippe Gil  <gil@adacore.com>
+
+	* libgnarl/s-tporft.adb (Register_Foreign_Thread): Set
+	Global_Task_Lock_Nesting before using allocator.
+
+2020-12-16  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* libgnat/s-valrea.adb (Maxexp32): New constant array.
+	(Maxexp64): Likewise.
+	(Maxexp80): Likewise.
+	(Integer_to_Real): New local constants Maxexp and B.
+	When the exponent is too negative, do the divison in two steps.
+
+2020-12-16  Piotr Trojanek  <trojanek@adacore.com>
+
+	* doc/gnat_rm/implementation_defined_pragmas.rst
+	(Test_Case): Change integer to float literals.
+	* gnat_rm.texi: Regenerate.
+
+2020-12-16  Piotr Trojanek  <trojanek@adacore.com>
+
+	* sem_ch13.adb (Analyze_Aspect_Specifications): Add a codefix
+	for extra parentheses around aspect Annotate expression; reject
+	"(null record)" aggregate and extra parentheses around aspect
+	Test_Case expression.
+	* sem_prag.adb (Analyze_Pragma): Reject "null", "(null record)"
+	and extra parentheses around pragma Contract_Cases; likewise for
+	pragma Subprogram_Variant.
+
+2020-12-16  Dmitriy Anisimkov  <anisimko@adacore.com>
+
+	* adaint.h (__gnat_in_child_after_fork): New flag to express
+	child process side after fork call.
+	* adaint.c (__gnat_portable_spawn): Set flag
+	__gnat_in_child_after_fork.
+	* expect.c (__gnat_expect_fork): Set __gnat_in_child_after_fork
+	to one on child side.
+	* libgnat/memtrack.adb
+	(In_Child_After_Fork): Flag to disable memory tracking.
+	(Allow_Trace): New routine defining if memory should be tracked.
+	(Alloc, Realloc, Free): Use Allow_Trace in "if" condition
+	instead of First_Call.
+
+2020-12-16  Yannick Moy  <moy@adacore.com>
+
+	* libgnat/a-tifiio.adb: Mark body not in SPARK.
+	* libgnat/a-tifiio.ads: Mark spec in SPARK.
+	* libgnat/a-tifiio__128.adb: Mark body not in SPARK.
+
+2020-12-16  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* libgnat/s-valuer.adb (Scan_Decimal_Digits): Tweak overflow test.
+	(Scan_Integral_Digits): Likewise.
+
+2020-12-16  Pascal Obry  <obry@adacore.com>
+
+	* s-oscons-tmplt.c: Add some OS constants.
+
 2020-12-15  Pascal Obry  <obry@adacore.com>
 
 	* libgnat/g-sercom__linux.adb (Set): Use cfsetospeed and
diff --git a/gcc/brig/ChangeLog b/gcc/brig/ChangeLog
index 518b13a..7d599fa 100644
--- a/gcc/brig/ChangeLog
+++ b/gcc/brig/ChangeLog
@@ -1,3 +1,7 @@
+2020-12-16  Martin Liska  <mliska@suse.cz>
+
+	* lang.opt: Remove usage of Report.
+
 2020-11-20  Jakub Jelinek  <jakub@redhat.com>
 
 	PR other/97911
diff --git a/gcc/c-family/ChangeLog b/gcc/c-family/ChangeLog
index 2ed7b33..761086f 100644
--- a/gcc/c-family/ChangeLog
+++ b/gcc/c-family/ChangeLog
@@ -1,3 +1,7 @@
+2020-12-16  Martin Liska  <mliska@suse.cz>
+
+	* c.opt: Remove usage of Report.
+
 2020-12-14  Martin Sebor  <msebor@redhat.com>
 
 	PR middle-end/98166
diff --git a/gcc/c/ChangeLog b/gcc/c/ChangeLog
index 1ed66af..b5cf1a7 100644
--- a/gcc/c/ChangeLog
+++ b/gcc/c/ChangeLog
@@ -1,3 +1,14 @@
+2020-12-16  Martin Uecker  <muecker@gwdg.de>
+
+	PR c/98047
+	* c-typeck.c (build_modify_expr): Drop qualifiers.
+
+2020-12-16  Martin Uecker  <muecker@gwdg.de>
+
+	PR c/98260
+	* c-parser.c (c_parser_expression): Look into
+	nop expression when marking expressions as read.
+
 2020-12-14  Martin Liska  <mliska@suse.cz>
 
 	PR sanitizer/98204
diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index 716fb6f..8778b6f 100644
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,3 +1,32 @@
+2020-12-16  Nathan Sidwell  <nathan@acm.org>
+
+	* mapper-resolver.cc: Remove early include of
+	sys/socket.h.  Specify no CODY_NETWORKING instead.
+	* module.cc: Specify no CODY_NETWORKING.
+
+2020-12-16  Nathan Sidwell  <nathan@acm.org>
+
+	* parser.c (cp_parser_elaborated_type_specifier): Test
+	BOUND_TEMPLATE_TEMPLATE_PARM before checking for instantiation.
+
+2020-12-16  Nathan Sidwell  <nathan@acm.org>
+
+	* module.cc (dumper::push): Clangify offsetof use.
+
+2020-12-16  Nathan Sidwell  <nathan@acm.org>
+
+	* mapper-resolver.cc: #include sys/socket before system.h
+	due to poisoned bcopy use.
+
+2020-12-16  Nathan Sidwell  <nathan@acm.org>
+
+	* module.cc (loc_spans): Make spans a pointer, not inline.
+	Adjust all accesses.
+
+2020-12-16  Nathan Sidwell  <nathan@acm.org>
+
+	* mapper-client.cc: Include sys/socket.h before system.h.
+
 2020-12-15  Patrick Palka  <ppalka@redhat.com>
 
 	* pt.c (in_template_function): Inspect cfun->decl instead of
diff --git a/gcc/fortran/ChangeLog b/gcc/fortran/ChangeLog
index 5c6f733..0efd160 100644
--- a/gcc/fortran/ChangeLog
+++ b/gcc/fortran/ChangeLog
@@ -1,3 +1,9 @@
+2020-12-16  Harald Anlauf  <anlauf@gmx.de>
+
+	PR fortran/98284
+	* resolve.c (check_data_variable): Reject DATA elements with the
+	ALLOCATABLE attribute.
+
 2020-12-15  Thomas Koenig  <tkoenig@gcc.gnu.org>
 
 	PR fortran/90207
diff --git a/gcc/lto/ChangeLog b/gcc/lto/ChangeLog
index 25c9063..ac16f0f 100644
--- a/gcc/lto/ChangeLog
+++ b/gcc/lto/ChangeLog
@@ -1,3 +1,7 @@
+2020-12-16  Martin Liska  <mliska@suse.cz>
+
+	* lang.opt: Remove usage of Report.
+
 2020-11-20  Jakub Jelinek  <jakub@redhat.com>
 
 	PR other/97911
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 984299c..fc18373 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,92 @@
+2020-12-17  Richard Sandiford  <richard.sandiford@arm.com>
+
+	* gcc.dg/rtl/x86_64/test-return-const.c.before-fwprop.c: Don't
+	expect insn updates to be deferred.
+	* gcc.target/aarch64/sve/acle/asm/st4_s8.c: Expect the addition
+	to be folded into the address.
+	* gcc.target/aarch64/sve/acle/asm/st4_u8.c: Likewise.
+
+2020-12-16  Martin Uecker  <muecker@gwdg.de>
+
+	PR c/98047
+	* gcc.dg/qual-assign-7.c: New test.
+
+2020-12-16  Martin Uecker  <muecker@gwdg.de>
+
+	PR c/98260
+	* gcc.dg/unused-9.c: New test.
+
+2020-12-16  David Edelsohn  <dje.gcc@gmail.com>
+
+	PR target/98280
+	* gcc.target/powerpc/fold-vec-logical-ors-char.c: Adjust count.
+	* gcc.target/powerpc/fold-vec-logical-ors-int.c: Adjust count.
+	* gcc.target/powerpc/fold-vec-logical-ors-longlong.c: Adjust count.
+	* gcc.target/powerpc/fold-vec-logical-ors-short.c: Adjust count.
+	* gcc.target/powerpc/fold-vec-logical-other-char.c: Adjust count.
+	* gcc.target/powerpc/fold-vec-logical-other-int.c: Adjust count.
+	* gcc.target/powerpc/fold-vec-logical-other-longlong.c: Adjust count.
+	* gcc.target/powerpc/fold-vec-logical-other-short.c: Adjust count.
+
+2020-12-16  Nathan Sidwell  <nathan@acm.org>
+
+	* g++.dg/template/pr98297.C: New.
+
+2020-12-16  Harald Anlauf  <anlauf@gmx.de>
+
+	PR fortran/98284
+	* gfortran.dg/pr98284.f90: New test.
+
+2020-12-16  H.J. Lu  <hjl.tools@gmail.com>
+
+	PR target/98146
+	* lib/target-supports.exp
+	(check_effective_target_R_flag_in_section): Also check
+	HAVE_INITFINI_ARRAY_SUPPORT != 0.
+
+2020-12-16  H.J. Lu  <hjl.tools@gmail.com>
+
+	PR target/98146
+	* c-c++-common/attr-used-5.c: Updated.
+	* c-c++-common/attr-used-6.c: Likewise.
+	* c-c++-common/attr-used-7.c: Likewise.
+	* c-c++-common/attr-used-8.c: Likewise.
+
+2020-12-16  H.J. Lu  <hjl.tools@gmail.com>
+
+	PR target/98146
+	* c-c++-common/attr-used-5.c: New test.
+	* c-c++-common/attr-used-6.c: Likewise.
+	* c-c++-common/attr-used-7.c: Likewise.
+	* c-c++-common/attr-used-8.c: Likewise.
+	* c-c++-common/attr-used-9.c: Likewise.
+
+2020-12-16  Jakub Jelinek  <jakub@redhat.com>
+
+	PR tree-optimization/96239
+	* gcc.dg/pr96239.c: New test.
+
+2020-12-16  Martin Liska  <mliska@suse.cz>
+
+	PR sanitizer/97868
+	* gcc.dg/tsan/atomic-fence.c: New test.
+
+2020-12-16  Martin Liska  <mliska@suse.cz>
+
+	PR rtl-optimization/98271
+	PR rtl-optimization/98276
+	PR tree-optimization/98279
+	* gcc.dg/pr98271.c: New test.
+
+2020-12-16  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc.dg/pr98272.c: New test.
+
+2020-12-16  Kewen Lin  <linkw@linux.ibm.com>
+
+	* gcc.target/powerpc/pr96933-1.c: Adjusted to check no rlwinm.
+	* gcc.target/powerpc/pr96933-2.c: Likewise.
+
 2020-12-15  Marek Polacek  <polacek@redhat.com>
 
 	* g++.dg/cpp0x/constexpr-52830.C: Remove dg-ice.
diff --git a/libcody/ChangeLog b/libcody/ChangeLog
index ea3d161..f5aa2de 100644
--- a/libcody/ChangeLog
+++ b/libcody/ChangeLog
@@ -1,3 +1,30 @@
+2020-12-16  Nathan Sidwell  <nathan@acm.org>
+
+	* cody.hh: Allow user to set CODY_NETWORKING.
+
+2020-12-16  Jakub Jelinek  <jakub@redhat.com>
+
+	* configure.ac: Compute is_release.
+	(NMS_ENABLE_CHECKING): Simplify but not computing ac_assert_checking
+	and ac_valgrind_checking the code doesn't use.
+	* configure: Regenerated.
+
+2020-12-16  Jonathan Wakely  <jwakely@redhat.com>
+
+	* internal.hh: Define fallback macros for __has_builtin and
+	__has_include. Use __has_builtin for __builtin_FILE and
+	__builtin_LINE. Define alias for std::source_location.
+
+2020-12-16  Nathan Sidwell  <nathan@acm.org>
+
+	* configure.ac: Use libcpp's enable-checking code.
+	* configure: Rebuilt.
+
+2020-12-16  Nathan Sidwell  <nathan@acm.org>
+
+	* config.m4: Replace V+="..." with V="$V..."
+	* configure: Rebuilt.
+
 2020-12-15  Marek Polacek  <polacek@redhat.com>
 
 	* buffer.cc (MessageBuffer::Lex): Remove unused variable.
diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index a058b79..1b9f37e 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,137 @@
+2020-12-16  Jonathan Wakely  <jwakely@redhat.com>
+
+	* Makefile.in: Regenerate.
+	* config.h.in: Regenerate.
+	* config/abi/pre/gnu.ver: Make patterns less greedy.
+	* config/os/gnu-linux/ldbl-ieee128-extra.ver: New file with patterns
+	for IEEE128 long double symbols.
+	* configure: Regenerate.
+	* configure.ac: Enable alternative 128-bit long double format on
+	powerpc64*-*-linux*.
+	* doc/Makefile.in: Regenerate.
+	* fragment.am: Regenerate.
+	* include/Makefile.am: Set _GLIBCXX_LONG_DOUBLE_ALT128_COMPAT.
+	* include/Makefile.in: Regenerate.
+	* include/bits/c++config: Define inline namespace for new long
+	double symbols. Don't define _GLIBCXX_USE_FLOAT128 when it's the
+	same type as long double.
+	* include/bits/locale_classes.h [_GLIBCXX_LONG_DOUBLE_ALT128_COMPAT]
+	(locale::_Impl::_M_init_extra_ldbl128): Declare new member function.
+	* include/bits/locale_facets.h (_GLIBCXX_NUM_FACETS): Simplify by
+	only counting narrow character facets.
+	(_GLIBCXX_NUM_CXX11_FACETS): Likewise.
+	(_GLIBCXX_NUM_LBDL_ALT128_FACETS): New.
+	[_GLIBCXX_LONG_DOUBLE_ALT128_COMPAT] (num_get::__do_get): Define
+	vtable placeholder for __ibm128 long double type.
+	[_GLIBCXX_LONG_DOUBLE_ALT128_COMPAT && __LONG_DOUBLE_IEEE128__]
+	(num_get::__do_get): Declare vtable placeholder for __ibm128 long
+	double type.
+	[_GLIBCXX_LONG_DOUBLE_ALT128_COMPAT && __LONG_DOUBLE_IEEE128__]
+	(num_put::__do_put): Likewise.
+	* include/bits/locale_facets.tcc
+	[_GLIBCXX_LONG_DOUBLE_ALT128_COMPAT && __LONG_DOUBLE_IEEE128__]
+	(num_get::__do_get, num_put::__do_put): Define.
+	* include/bits/locale_facets_nonio.h
+	[_GLIBCXX_LONG_DOUBLE_ALT128_COMPAT && __LONG_DOUBLE_IEEE128__]
+	(money_get::__do_get): Declare vtable placeholder for __ibm128 long
+	double type.
+	[_GLIBCXX_LONG_DOUBLE_ALT128_COMPAT && __LONG_DOUBLE_IEEE128__]
+	(money_put::__do_put): Likewise.
+	* include/bits/locale_facets_nonio.tcc
+	[_GLIBCXX_LONG_DOUBLE_ALT128_COMPAT && __LONG_DOUBLE_IEEE128__]
+	(money_get::__do_get, money_put::__do_put): Define.
+	* include/ext/numeric_traits.h [_GLIBCXX_LONG_DOUBLE_ALT128_COMPAT]
+	(__numeric_traits<__ibm128>, __numeric_traits<__ieee128>): Define.
+	* libsupc++/Makefile.in: Regenerate.
+	* po/Makefile.in: Regenerate.
+	* python/Makefile.in: Regenerate.
+	* src/Makefile.am: Add compatibility-ldbl-alt128.cc and
+	compatibility-ldbl-alt128-cxx11.cc sources and recipes for objects.
+	* src/Makefile.in: Regenerate.
+	* src/c++11/Makefile.in: Regenerate.
+	* src/c++11/compatibility-ldbl-alt128-cxx11.cc: New file defining
+	symbols using the old 128-bit long double format, for the cxx11 ABI.
+	* src/c++11/compatibility-ldbl-alt128.cc: Likewise, for the
+	gcc4-compatible ABI.
+	* src/c++11/compatibility-ldbl-facets-aliases.h: New header for long
+	double compat aliases.
+	* src/c++11/cow-locale_init.cc: Add comment.
+	* src/c++11/cxx11-locale-inst.cc: Define C and C_is_char
+	unconditionally.
+	* src/c++11/cxx11-wlocale-inst.cc: Add sanity check. Include
+	locale-inst.cc directly, not via cxx11-locale-inst.cc.
+	* src/c++11/locale-inst-monetary.h: New header for monetary
+	category instantiations.
+	* src/c++11/locale-inst-numeric.h: New header for numeric category
+	instantiations.
+	* src/c++11/locale-inst.cc: Include new headers for monetary,
+	numeric, and long double definitions.
+	* src/c++11/wlocale-inst.cc: Remove long double compat aliases that
+	are defined in new header now.
+	* src/c++17/Makefile.am: Use -mabi=ibmlongdouble for
+	floating_from_chars.cc.
+	* src/c++17/Makefile.in: Regenerate.
+	* src/c++17/floating_from_chars.cc (from_chars_impl): Add
+	if-constexpr branch for __ieee128.
+	(from_chars): Overload for __ieee128.
+	* src/c++20/Makefile.in: Regenerate.
+	* src/c++98/Makefile.in: Regenerate.
+	* src/c++98/locale_init.cc (num_facets): Adjust calculation.
+	(locale::_Impl::_Impl(size_t)): Call _M_init_extra_ldbl128.
+	* src/c++98/localename.cc (num_facets): Adjust calculation.
+	(locale::_Impl::_Impl(const char*, size_t)): Call
+	_M_init_extra_ldbl128.
+	* src/filesystem/Makefile.in: Regenerate.
+	* testsuite/Makefile.in: Regenerate.
+	* testsuite/util/testsuite_abi.cc: Add new symbol versions.
+	Allow new symbols to be added to GLIBCXX_IEEE128_3.4.29 and
+	CXXABI_IEEE128_1.3.13 too.
+	* testsuite/26_numerics/complex/abi_tag.cc: Add u9__ieee128 to
+	regex matching expected symbols.
+
+2020-12-16  Jonathan Wakely  <jwakely@redhat.com>
+
+	* include/std/utility: Use __has_builtin without checking if
+	it's defined.
+
+2020-12-16  Jonathan Wakely  <jwakely@redhat.com>
+
+	* include/bits/c++config: Warn if __STRICT_ANSI__ state is
+	inconsistent with __GLIBCXX_TYPE_INT_N_0.
+
+2020-12-16  Jonathan Wakely  <jwakely@redhat.com>
+
+	PR libstdc++/96083
+	* include/ext/throw_allocator.h: Use __has_builtin to check for
+	__builtin_sprintf support, and use std::sprtinf if necessary.
+
+2020-12-16  Jonathan Wakely  <jwakely@redhat.com>
+
+	PR libstdc++/98319
+	* include/experimental/random: Only define contents for C++14
+	and later.
+	* include/experimental/source_location: Likewise.
+	* include/experimental/utility: Likewise.
+	* testsuite/experimental/feat-lib-fund.cc: Include all LFTS
+	headers that are present. Allow test to run for all modes.
+
+2020-12-16  Jonathan Wakely  <jwakely@redhat.com>
+
+	PR libstdc++/46447
+	* testsuite/performance/29_atomics/atomic_flag.cc: New test.
+
+2020-12-16  Jonathan Wakely  <jwakely@redhat.com>
+
+	PR libstdc++/93151
+	* acinclude.m4 (GLIBCXX_CHECK_SYSTEM_ERROR): Remove.
+	* configure.ac: Regenerate.
+	* config/os/generic/error_constants.h: Test POSIX errno macros
+	directly, instead of corresponding _GLIBCXX_HAVE_EXXX macros.
+	* testsuite/19_diagnostics/headers/system_error/errc_std_c++0x.cc:
+	Likewise.
+	* testsuite/19_diagnostics/headers/system_error/93151.cc: New
+	test.
+
 2020-12-15  Jonathan Wakely  <jwakely@redhat.com>
 
 	Revert:
diff --git a/maintainer-scripts/ChangeLog b/maintainer-scripts/ChangeLog
index d65a2de..fce9c79 100644
--- a/maintainer-scripts/ChangeLog
+++ b/maintainer-scripts/ChangeLog
@@ -1,3 +1,8 @@
+2020-12-16  Jakub Jelinek  <jakub@redhat.com>
+
+	* update_version_git: Put BASEDIR into /sourceware/snapshot-tmp/gcc
+	if it exist.
+
 2020-05-29  Martin Liska  <mliska@suse.cz>
 
 	* bugzilla-close-candidate.py: Fix sorting of branches.