[gcc r11-5455] Daily bump.

[gcc r11-5455] Daily bump.

[GCC Administrator]

https://gcc.gnu.org/g:d48df6f24ba999ad662d3b7c30f7e2180e842149

commit r11-5455-gd48df6f24ba999ad662d3b7c30f7e2180e842149
Author: GCC Administrator <gccadmin@gcc.gnu.org>
Date:   Fri Nov 27 00:16:31 2020 +0000

    Daily bump.

Diff:
---
 gcc/ChangeLog           | 112 ++++++++++++++
 gcc/DATESTAMP           |   2 +-
 gcc/ada/ChangeLog       | 396 ++++++++++++++++++++++++++++++++++++++++++++++++
 gcc/c/ChangeLog         |   9 ++
 gcc/cp/ChangeLog        |  12 ++
 gcc/testsuite/ChangeLog |  63 ++++++++
 libgfortran/ChangeLog   |  22 +++
 libstdc++-v3/ChangeLog  |  92 +++++++++++
 8 files changed, 707 insertions(+), 1 deletion(-)

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 77f5de35cdc..672353c3f1c 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,115 @@
+2020-11-26  Eric Botcazou  <ebotcazou@adacore.com>
+
+	PR target/96607
+	* config/sparc/sparc-protos.h (eligible_for_call_delay): Delete.
+	* config/sparc/sparc.c (eligible_for_call_delay): Likewise.
+	* config/sparc/sparc.md (in_call_delay): Likewise.
+	(tls_delay_slot): New attribute.
+	(define_delay [call]): Use in_branch_delay.
+	(tgd_call<P:mode>): Set type to call_no_delay_slot when
+	tls_delay_slot is false.
+	(tldm_call<P:mode>): Likewise.
+
+2020-11-26  Jakub Jelinek  <jakub@redhat.com>
+
+	PR tree-optimization/97997
+	* match.pd ((t * 2) / 2) -> t): Optimize even for defined
+	overflow if ranges prove there is no overflow.
+
+2020-11-26  Richard Biener  <rguenther@suse.de>
+
+	PR tree-optimization/97953
+	* gimple-ssa-evrp-analyze.c
+	(evrp_range_analyzer::record_ranges_from_incoming_edge): Make
+	sure the condition post-dominates the SSA definition before
+	recording into SSA_NAME_RANGE_INFO.
+
+2020-11-26  Richard Biener  <rguenther@suse.de>
+
+	* gimple-isel.cc (gimple_expand_vec_cond_expr): Only
+	lower VECTOR_BOOLEAN_TYPE_P VEC_COND_EXPRs.
+
+2020-11-26  Andrew Stubbs  <ams@codesourcery.com>
+
+	* config/gcn/mkoffload.c (copy_early_debug_info): Don't wipe
+	relocation symbols.
+
+2020-11-26  Uroš Bizjak  <ubizjak@gmail.com>
+
+	* config/i386/i386-expand.c (ix86_expand_multi_arg_builtin):
+	Remove args array of structs, declare rtx xops array instead.
+	Update all uses.
+	(ix86_expand_args_builtin): Ditto.
+	(ix86_expand_round_builtin): Ditto.
+	(ix86_expand_special_args_builtin): Ditto.
+
+2020-11-26  Martin Liska  <mliska@suse.cz>
+
+	* dwarf2out.c (gen_compile_unit_die): Fix missing == 0 in a
+	strcmp.
+
+2020-11-26  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
+
+	* config/sol2.h (TIME_LIBRARY): Remove.
+
+2020-11-26  Kewen Lin  <linkw@linux.ibm.com>
+
+	* config/rs6000/rs6000.c (rs6000_option_override_internal):
+	Set param_vect_partial_vector_usage as 1 for Power10 and up
+	by default.
+
+2020-11-26  Jakub Jelinek  <jakub@redhat.com>
+
+	* gimple-fold.c (clear_padding_union): Ignore DECL_PADDING_P
+	fields.
+	(clear_padding_type): Ignore DECL_PADDING_P fields, rather than
+	DECL_BIT_FIELD with NULL DECL_NAME.
+
+2020-11-26  Jakub Jelinek  <jakub@redhat.com>
+
+	PR tree-optimization/97979
+	* match.pd ((X {&,^,|} C2) << C1 into (X << C1) {&,^,|} (C2 << C1)):
+	Only optimize if int_const_binop returned non-NULL.
+
+2020-11-26  liuhongt  <hongtao.liu@intel.com>
+
+	* config/i386/i386-expand.c
+	(ix86_expand_special_args_builtin): Delete last_arg_constant
+	and match.
+
+2020-11-26  Uroš Bizjak  <ubizjak@gmail.com>
+
+	PR target/97873
+	* config/i386/i386.md (abs<mode>2): Use SDWIM mode iterator.
+	(*abs<mode>2_1): Use SWI mode iterator.
+	(<maxmin:code><mode>3): Use SDWIM mode iterator.
+	(*<maxmin:code><mode>3_1): Use SWI mode iterator.
+
+2020-11-26  Jakub Jelinek  <jakub@redhat.com>
+
+	PR target/96906
+	* config/i386/sse.md (VI12_AVX2): Remove V64QI/V32HI modes.
+	(VI12_AVX2_AVX512BW): New mode iterator.
+	(<sse2_avx2>_<plusminus_insn><mode>3<mask_name>,
+	uavg<mode>3_ceil, <sse2_avx2>_uavg<mode>3<mask_name>): Use
+	VI12_AVX2_AVX512BW iterator instead of VI12_AVX2.
+	(*<sse2_avx2>_<plusminus_insn><mode>3<mask_name>): Likewise.
+	(*<sse2_avx2>_uavg<mode>3<mask_name>): Likewise.
+	(*<sse2_avx2>_<plusminus_insn><mode>3<mask_name>): Add a new
+	define_split after this insn.
+
+2020-11-26  Martin Uecker  <muecker@gwdg.de>
+
+	PR c/65455
+	PR c/92935
+	* ginclude/stdatomic.h: Use comma operator to drop qualifiers.
+
+2020-11-26  Vladimir Makarov  <vmakarov@redhat.com>
+
+	PR bootstrap/97983
+	* lra.c (lra_process_new_insns): Use emit_insn_before_noloc or
+	emit_insn_after_noloc with the destination BB.
+
 2020-11-25  Martin Sebor  <msebor@redhat.com>
 
 	PR bootstrap/97622
diff --git a/gcc/DATESTAMP b/gcc/DATESTAMP
index 2c90f2149a7..5476fe043d6 100644
--- a/gcc/DATESTAMP
+++ b/gcc/DATESTAMP
@@ -1 +1 @@
-20201126
+20201127
diff --git a/gcc/ada/ChangeLog b/gcc/ada/ChangeLog
index 961414c8d6e..4ebac34f811 100644
--- a/gcc/ada/ChangeLog
+++ b/gcc/ada/ChangeLog
@@ -1,3 +1,399 @@
+2020-11-26  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
+
+	* Makefile.rtl <sparc*-sun-solaris*> (THREADSLIB): Remove.
+	(MISCLIB): Remove -lposix4.
+	<*86-*-solaris2*>: Likewise.
+	* libgnarl/s-osinte__solaris.ads (System.OS_Interface): Remove
+	-lposix4 -lthread.
+
+2020-11-26  Arnaud Charlet  <charlet@adacore.com>
+
+	* libgnat/a-nbnbre.adb (To_Big_Real): Do not loose precision.
+
+2020-11-26  Arnaud Charlet  <charlet@adacore.com>
+
+	* sem_ch8.adb (Analyze_Object_Renaming): Check for AI12-0401.
+
+2020-11-26  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* Makefile.rtl (GNATRTL_NONTASKING_OBJS): Likewise.
+	(GNATRTL_128BIT_OBJS): Likewise.
+	(GNATRTL_128BIT_PAIRS): Add new 128-bit variants.
+	* cstand.adb (Create_Standard): Create Standard_Integer_128.
+	* doc/gnat_rm/implementation_defined_characteristics.rst: Document
+	new limits on 64-bit platforms in entry for 3.5.9(10).
+	* gnat_rm.texi: Regenerate.
+	* exp_attr.adb: Add with and use clauses for Urealp.
+	(Expand_N_Attribute_Reference) <Attribute_Fore>: Call new routines
+	for decimal fixed-point types and common ordinary fixed-point types.
+	* exp_ch4.adb (Real_Range_Check): Extend conversion trick to all
+	ordinary fixed-point types and use Small_Integer_Type_For.
+	* exp_fixd.adb: Add with and use clauses for Ttypes.
+	(Build_Divide): Add special case for 32-bit values and deal with
+	128-bit types.
+	(Build_Double_Divide): Deal with 128-bit types.
+	(Build_Double_Divide_Code): Likewise.  Do not apply conversions
+	before calling Build_Multiply.
+	(Build_Multiply): Likewise.  Add special case for 32-bit values.
+	(Build_Scaled_Divide): Deal with 128-bit types.
+	(Build_Scaled_Divide_Code): Likewise.  Fix size computation.  Do not
+	apply conversions before calling Build_Multiply.
+	(Do_Multiply_Fixed_Fixed): Minor tweak.
+	(Integer_Literal): Deal with 128-bit values.
+	* exp_imgv.adb (Has_Decimal_Small): Delete.
+	(Expand_Image_Attribute): Call new routines for common ordinary
+	fixed-point types.
+	(Expand_Value_Attribute): Likewise.
+	(Expand_Width_Attribute): Add new expansion for fixed-point types.
+	* freeze.adb (Freeze_Entity): Move error checks for ordinary
+	fixed-point types to...
+	(Freeze_Fixed_Point_Type): ...here.  Deal with 128-bit types and
+	adjust limitations for 32-bnt and 64-bit types.
+	* rtsfind.ads (RTU_Id): Add entries for new System_Fore, System_Img,
+	and System_Val units and remove them for obsolete units.
+	(RE_Id): Add entries for Double_Divide128, Scaled_Divide128, the new
+	Fore, Image, Value routines and remove them for obsolete units.
+	(RE_Unit_Table): Likewise.
+	* sem_ch3.adb (Decimal_Fixed_Point_Type_Declaration): Deal with
+	128-bit types.
+	* stand.ads (Standard_Entity_Type): Add Standard_Integer_128.
+	* uintp.ads (Uint_31): New deferred constant.
+	(Uint_Minus_18): Likewise.
+	(Uint_Minus_31): Likewise.
+	(Uint_Minus_76): Likewise.
+	(Uint_Minus_127): Likewise.
+	* urealp.ads (Ureal_2_31): New function.
+	(Ureal_2_63): Likewise.
+	(Ureal_2_127): Likewise.
+	(Ureal_2_M_127): Likewise.
+	(Ureal_2_10_18): Likewise.
+	(Ureal_M_2_10_18): Likewise.
+	(Ureal_9_10_36): Likewise.
+	(Ureal_M_9_10_36): Likewise.
+	(Ureal_10_76): Likewise.
+	(Ureal_M_10_76): Likewise.
+	(Ureal_10_36): Delete.
+	(Ureal_M_10_36): Likewise.
+	* urealp.adb (UR_2_10_18): New variable.
+	(UR_9_10_36): Likewise.
+	(UR_10_76): Likewise.
+	(UR_M_2_10_18): Likewise.
+	(UR_M_9_10_36): Likewise.
+	(UR_M_10_76): Likewise.
+	(UR_2_31): Likewise.
+	(UR_2_63): Likewise.
+	(UR_2_127): Likewise.
+	(UR_2_M_127): Likewise.
+	(UR_10_36): Delete.
+	(UR_M_10_36): Likewise.
+	(Initialize): Initialize them.
+	(UR_Write): Do not use awkward Ada literal style.
+	(Ureal_2_10_18): New function.
+	(Ureal_9_10_36): Likewise.
+	(Ureal_10_76): Likewise.
+	(Ureal_2_31): Likewise.
+	(Ureal_2_63): Likewise.
+	(Ureal_2_127): Likewise.
+	(Ureal_2_M_127): Likewise.
+	(Ureal_M_2_10_18): Likewise.
+	(Ureal_M_9_10_36): Likewise.
+	(Ureal_10_76): Likewise.
+	(Ureal_M_10_76): Likewise.
+	(Ureal_10_36): Delete.
+	(Ureal_M_10_36): Likewise.
+	* libgnat/a-decima__128.ads: New file.
+	* libgnat/a-tideau.ads, libgnat/a-tideau.adb: Reimplement as
+	generic unit.
+	* libgnat/a-tideio.adb: Reimplement.
+	* libgnat/a-tideio__128.adb: New file.
+	* libgnat/a-tifiau.ads, libgnat/a-tifiau.adb: New generic unit.
+	* libgnat/a-tifiio.adb: Move bulk of implementation to s-imagef
+	and reimplement.
+	* libgnat/a-tifiio__128.adb: New file.
+	* libgnat/a-tiflau.adb (Get): Minor consistency fix.
+	(Gets): Likewise.
+	* libgnat/a-wtdeau.ads, libgnat/a-wtdeau.adb: Reimplement as
+	generic unit.
+	* libgnat/a-wtdeio.adb: Reimplement.
+	* libgnat/a-wtdeio__128.adb: New file.
+	* libgnat/a-wtfiau.ads, libgnat/a-wtfiau.adb: New generic unit.
+	* libgnat/a-wtfiio.adb: Reimplement.
+	* libgnat/a-wtfiio__128.adb: New file.
+	* libgnat/a-ztdeau.ads, libgnat/a-ztdeau.adb: Reimplement as
+	generic unit.
+	* libgnat/a-ztdeio.adb: Reimplement.
+	* libgnat/a-ztdeio__128.adb: New file.
+	* libgnat/a-ztfiau.ads, libgnat/a-ztfiau.adb: New generic unit.
+	* libgnat/a-ztfiio.adb: Reimplement.
+	* libgnat/a-ztfiio__128.adb: New file.
+	* libgnat/g-rannum.adb (Random_Decimal_Fixed): Use a subtype of the
+	appropiate size for the instantiation.
+	(Random_Ordinary_Fixed): Likewise.
+	* libgnat/s-arit32.ads, libgnat/s-arit32.adb: New support unit.
+	* libgnat/s-fode128.ads: New instantiation.
+	* libgnat/s-fode32.ads: Likewise.
+	* libgnat/s-fode64.ads: Likewise.
+	* libgnat/s-fofi128.ads: Likewise.
+	* libgnat/s-fofi32.ads: Likewise.
+	* libgnat/s-fofi64.ads: Likewise.
+	* libgnat/s-fore_d.ads, libgnat/s-fore_d.adb: New generic unit.
+	* libgnat/s-fore_f.ads, libgnat/s-fore_f.adb: Likewise.
+	* libgnat/s-fore.ads, libgnat/s-fore.adb: Rename into...
+	* libgnat/s-forrea.ads, libgnat/s-forrea.adb: ...this.
+	* libgnat/s-imaged.ads, libgnat/s-imaged.adb: New generic unit.
+	* libgnat/s-imagef.ads, libgnat/s-imagef.adb: Likewise, taken
+	from a-tifiio.adb.
+	* libgnat/s-imde128.ads: New instantiation.
+	* libgnat/s-imde32.ads: Likewise.
+	* libgnat/s-imde64.ads: Likewise.
+	* libgnat/s-imfi128.ads: Likewise.
+	* libgnat/s-imfi32.ads: Likewise.
+	* libgnat/s-imfi64.ads: Likewise.
+	* libgnat/s-imgdec.ads, libgnat/s-imgdec.adb: Delete.
+	* libgnat/s-imglld.ads, libgnat/s-imglld.adb: Likewise.
+	* libgnat/s-imgrea.adb (Set_Image_Real): Replace Sign local variable
+	with Minus local variable for the sake of consistency.
+	* libgnat/s-imguti.ads, libgnat/s-imguti.adb: New support unit.
+	* libgnat/s-vade128.ads: New instantiation.
+	* libgnat/s-vade32.ads: Likewise.
+	* libgnat/s-vade64.ads: Likewise.
+	* libgnat/s-vafi128.ads: Likewise.
+	* libgnat/s-vafi32.ads: Likewise.
+	* libgnat/s-vafi64.ads: Likewise.
+	* libgnat/s-valdec.ads, libgnat/s-valdec.adb: Delete.
+	* libgnat/s-vallld.ads, libgnat/s-vallld.adb: Likewise.
+	* libgnat/s-valued.ads, libgnat/s-valued.adb: New generic unit.
+	* libgnat/s-valuef.ads, libgnat/s-valuef.adb: Likewise.
+	* libgnat/s-valuei.adb: Minor rewording.
+	* libgnat/s-valrea.adb: Move bulk of implementation to...
+	* libgnat/s-valuer.ads, libgnat/s-valuer.adb: ...here.  New
+	generic unit.
+	* libgnat/system-aix.ads (Max_Mantissa): Adjust.
+	* libgnat/system-darwin-arm.ads (Max_Mantissa): Likewise.
+	* libgnat/system-darwin-ppc.ads (Max_Mantissa): Likewise.
+	* libgnat/system-darwin-x86.ads (Max_Mantissa): Likewise.
+	* libgnat/system-djgpp.ads (Max_Mantissa): Likewise.
+	* libgnat/system-dragonfly-x86_64.ads (Max_Mantissa): Likewise.
+	* libgnat/system-freebsd.ads (Max_Mantissa): Likewise.
+	* libgnat/system-hpux-ia64.ads (Max_Mantissa): Likewise.
+	* libgnat/system-hpux.ads (Max_Mantissa): Likewise.
+	* libgnat/system-linux-alpha.ads (Max_Mantissa): Likewise.
+	* libgnat/system-linux-arm.ads (Max_Mantissa): Likewise.
+	* libgnat/system-linux-hppa.ads (Max_Mantissa): Likewise.
+	* libgnat/system-linux-ia64.ads (Max_Mantissa): Likewise.
+	* libgnat/system-linux-m68k.ads (Max_Mantissa): Likewise.
+	* libgnat/system-linux-mips.ads (Max_Mantissa): Likewise.
+	* libgnat/system-linux-ppc.ads (Max_Mantissa): Likewise.
+	* libgnat/system-linux-riscv.ads (Max_Mantissa): Likewise.
+	* libgnat/system-linux-s390.ads (Max_Mantissa): Likewise.
+	* libgnat/system-linux-sh4.ads (Max_Mantissa): Likewise.
+	* libgnat/system-linux-sparc.ads (Max_Mantissa): Likewise.
+	* libgnat/system-linux-x86.ads (Max_Mantissa): Likewise.
+	* libgnat/system-lynxos178-ppc.ads (Max_Mantissa): Likewise.
+	* libgnat/system-lynxos178-x86.ads (Max_Mantissa): Likewise.
+	* libgnat/system-mingw.ads (Max_Mantissa): Likewise.
+	* libgnat/system-qnx-aarch64.ads (Max_Mantissa): Likewise.
+	* libgnat/system-rtems.ads (Max_Mantissa): Likewise.
+	* libgnat/system-solaris-sparc.ads (Max_Mantissa): Likewise.
+	* libgnat/system-solaris-x86.ads (Max_Mantissa): Likewise.
+	* libgnat/system-vxworks-arm-rtp-smp.ads (Max_Mantissa): Likewise.
+	* libgnat/system-vxworks-arm-rtp.ads (Max_Mantissa): Likewise.
+	* libgnat/system-vxworks-arm.ads (Max_Mantissa): Likewise.
+	* libgnat/system-vxworks-e500-kernel.ads (Max_Mantissa): Likewise.
+	* libgnat/system-vxworks-e500-rtp-smp.ads (Max_Mantissa): Likewise.
+	* libgnat/system-vxworks-e500-rtp.ads (Max_Mantissa): Likewise.
+	* libgnat/system-vxworks-e500-vthread.ads (Max_Mantissa): Likewise.
+	* libgnat/system-vxworks-ppc-kernel.ads (Max_Mantissa): Likewise.
+	* libgnat/system-vxworks-ppc-ravenscar.ads (Max_Mantissa): Likewise.
+	* libgnat/system-vxworks-ppc-rtp-smp.ads (Max_Mantissa): Likewise.
+	* libgnat/system-vxworks-ppc-rtp.ads (Max_Mantissa): Likewise.
+	* libgnat/system-vxworks-ppc-vthread.ads (Max_Mantissa): Likewise.
+	* libgnat/system-vxworks-ppc.ads (Max_Mantissa): Likewise.
+	* libgnat/system-vxworks-x86-kernel.ads (Max_Mantissa): Likewise.
+	* libgnat/system-vxworks-x86-rtp-smp.ads (Max_Mantissa): Likewise.
+	* libgnat/system-vxworks-x86-rtp.ads (Max_Mantissa): Likewise.
+	* libgnat/system-vxworks-x86-vthread.ads (Max_Mantissa): Likewise.
+	* libgnat/system-vxworks-x86.ads (Max_Mantissa): Likewise.
+	* libgnat/system-vxworks7-aarch64-rtp-smp.ads (Max_Mantissa):
+	Likewise.
+	* libgnat/system-vxworks7-aarch64.ads (Max_Mantissa): Likewise.
+	* libgnat/system-vxworks7-arm-rtp-smp.ads (Max_Mantissa): Likewise.
+	* libgnat/system-vxworks7-arm.ads (Max_Mantissa): Likewise.
+	* libgnat/system-vxworks7-e500-kernel.ads (Max_Mantissa): Likewise.
+	* libgnat/system-vxworks7-e500-rtp-smp.ads (Max_Mantissa): Likewise.
+	* libgnat/system-vxworks7-e500-rtp.ads (Max_Mantissa): Likewise.
+	* libgnat/system-vxworks7-ppc-kernel.ads (Max_Mantissa): Likewise.
+	* libgnat/system-vxworks7-ppc-rtp-smp.ads (Max_Mantissa): Likewise.
+	* libgnat/system-vxworks7-ppc-rtp.ads (Max_Mantissa): Likewise.
+	* libgnat/system-vxworks7-ppc64-kernel.ads (Max_Mantissa): Likewise.
+	* libgnat/system-vxworks7-ppc64-rtp-smp.ads (Max_Mantissa): Likewise.
+	* libgnat/system-vxworks7-x86-kernel.ads (Max_Mantissa): Likewise.
+	* libgnat/system-vxworks7-x86-rtp-smp.ads (Max_Mantissa): Likewise.
+	* libgnat/system-vxworks7-x86-rtp.ads (Max_Mantissa): Likewise.
+	* libgnat/system-vxworks7-x86_64-kernel.ads (Max_Mantissa): Likewise.
+	* libgnat/system-vxworks7-x86_64-rtp-smp.ads (Max_Mantissa): Likewise.
+
+2020-11-26  Liaiss Merzougue  <merzougue@adacore.com>
+
+	* libgnat/s-imgrea.ads (Image_Ordinary_Fixed_Point): Add a
+	remark concerning the irrelevant use of Inf and -0.0
+
+2020-11-26  Arnaud Charlet  <charlet@adacore.com>
+
+	* osint-c.adb (Set_Output_Object_File_Name): Add support for
+	.c output file.
+
+2020-11-26  Piotr Trojanek  <trojanek@adacore.com>
+
+	* lib-writ.adb, sem_ch8.adb, sem_prag.adb: Use
+	Is_Generic_Subprogram instead of low-level membership tests.
+
+2020-11-26  Gary Dismukes  <dismukes@adacore.com>
+
+	* sem_ch6.adb (Analyze_Call_And_Resolve): Reformatted a comment.
+	* sem_prag.adb (Process_Restrictions_Or_Restriction_Warnings):
+	Fixed a typo.
+
+2020-11-26  Piotr Trojanek  <trojanek@adacore.com>
+
+	* sem_res.adb (Resolve_Membership_Op): Replace pragma Warnings
+	with pragma Assert.
+
+2020-11-26  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_ch6.adb (Analyze_Call_And_Resolve): Add information to the
+	error message on an illegal procedure call, when the illegality
+	is due to the presence of a component of the full view of the
+	target object, as well as a procedure with the same name (See RM
+	4.1.3 (9.2/3)).
+
+2020-11-26  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_prag.adb (Process_Restrictions_Or_Restriction_Warnings):
+	when the restriction is a configuration pragma and specifies
+	No_Tasking, a global flag is set to reject task declarations,
+	and to prevent the construction of Master entities. The flag
+	must not be set if the pragma is a Restriction_Warning, in which
+	case task declarationns are allowed.
+
+2020-11-26  Piotr Trojanek  <trojanek@adacore.com>
+
+	* libgnat/a-stzhas.adb (Wide_Wide_Hash): Instantiate inside a
+	wrapper function.
+	* libgnat/a-stzhas.ads (Wide_Wide_Hash): Likewise; remove wrong
+	comment, because this is indeed a RM unit, as described in Ada
+	RM A.4.8 (1/3).
+
+2020-11-26  Piotr Trojanek  <trojanek@adacore.com>
+
+	* sem_eval.adb (Eval_Slice): Refactor repeated calls to Prefix
+	with a local constant (named just like in Resolve_Slice).
+
+2020-11-26  Piotr Trojanek  <trojanek@adacore.com>
+
+	* sem_eval.adb (Eval_Slice): Emit warning not just for
+	constants, but for any objects.
+
+2020-11-26  Piotr Trojanek  <trojanek@adacore.com>
+
+	* sem_ch4.adb (Indicate_Name_And_Type): Fix whitespace in
+	comment.
+	* sem_res.adb (Resolve_Call): Remove redundant parens.
+	* sem_util.adb (Set_Entity_With_Checks): Remove extra call to
+	Set_Entity.
+
+2020-11-26  Bob Duff  <duff@adacore.com>
+
+	* exp_ch4.adb (Expand_Concatenate): Call Set_No_Initialization
+	on the N_Allocator node that is supposed to allocate on the
+	secondary stack.
+
+2020-11-26  Piotr Trojanek  <trojanek@adacore.com>
+
+	* exp_ch13.adb, exp_ch9.adb, sem_ch8.adb, sem_util.adb: Replace
+	a combination of Is_Protected_Type and Is_Task_Type by
+	Is_Concurrent_Type.
+
+2020-11-26  Arnaud Charlet  <charlet@adacore.com>
+
+	* libgnarl/s-tassta.adb (Task_Wrapper): Fix computation of
+	Pattern_Size.
+
+2020-11-26  Bob Duff  <duff@adacore.com>
+
+	* freeze.adb (Freeze_Array_Type): Remove propagation of
+	Has_Own_Invariants to the first subtype. This is a no-op,
+	because the current (incorrect) version of Has_Own_Invariants
+	calls Base_Type.
+	* sem_prag.adb, sem_util.adb: Pass the base type to
+	Set_Has_Own_Invariants.
+
+2020-11-26  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* einfo.ads (Aft_Value): Adjust documentation.
+	(Scale_Value): Likewise.
+
+2020-11-26  Justin Squirek  <squirek@adacore.com>
+
+	* exp_ch4.adb (Expand_N_Type_Conversion): Use the unexpanded
+	operand when generating accessibility checks.
+
+2020-11-26  Piotr Trojanek  <trojanek@adacore.com>
+
+	* libgnat/a-cbhase.adb (Read): Remove extra whitespace.
+	* libgnat/a-cbmutr.ads (Read): Likewise.
+	* libgnat/a-cborse.adb (Read): Likewise.
+
+2020-11-26  Piotr Trojanek  <trojanek@adacore.com>
+
+	* exp_ch7.adb, exp_util.adb, freeze.adb: Rewrite with
+	Is_Access_Object_Type.
+
+2020-11-26  Piotr Trojanek  <trojanek@adacore.com>
+
+	* sem_prag.adb (Check_Valid_Library_Unit_Pragma): Raise
+	exception.
+	(Analyze_Pragma): Remove detection of rewritten pragmas.
+
+2020-11-26  Joffrey Huguet  <huguet@adacore.com>
+
+	* libgnat/a-strmap.ads: Add preconditions and postconditions to
+	all subprograms.
+
+2020-11-26  Yannick Moy  <moy@adacore.com>
+
+	* sem_res.adb (Resolve_Equality_Op): Warn when -gnatwq is used
+	(the default) and the problematic case is encountered.
+
+2020-11-26  Yannick Moy  <moy@adacore.com>
+
+	* sem_attr.adb (Analyze_Attribute): Issue a continuation message
+	to give proper recommendation here.
+
+2020-11-26  Gary Dismukes  <dismukes@adacore.com>
+
+	* exp_util.adb (Expand_Subtype_From_Expr): A typo correction,
+	plus other minor reformatting.
+
+2020-11-26  Ed Schonberg  <schonberg@adacore.com>
+
+	* sem_ch12.adb (Instantiate_Formal_Package): If previous matched
+	entity is overloadable, advance in the list of actuals of the
+	actual package, to prevent an erroneous match of two adjacent
+	overloadable homonyms with the same entity.
+
+2020-11-26  Justin Squirek  <squirek@adacore.com>
+
+	* sem_ch6.adb (First_Selector): Utility routine to return the
+	first selector or choice in an association.
+	(Check_Return_Construct_Accessibility): Modify loop to handle
+	named associations when iterating through discriminants.
+
+2020-11-26  Piotr Trojanek  <trojanek@adacore.com>
+
+	* sem_ch12.adb: Fix casing from "Instantiation" to
+	"instantiation".
+
 2020-11-25  Ed Schonberg  <schonberg@adacore.com>
 
 	* freeze.adb (Is_Uninitialized_Aggregate): Move...
diff --git a/gcc/c/ChangeLog b/gcc/c/ChangeLog
index fde2f96e8ba..b97fb740f9c 100644
--- a/gcc/c/ChangeLog
+++ b/gcc/c/ChangeLog
@@ -1,3 +1,12 @@
+2020-11-26  Martin Uecker  <muecker@gwdg.de>
+
+	PR c/65455
+	PR c/92935
+	* c-parser.c (c_parser_declaration_or_fndef): Remove
+	redundant code to drop qualifiers of _Atomic types for __auto_type.
+	(c_parser_typeof_specifier): Do not drop qualifiers of _Atomic
+	types for __typeof__.
+
 2020-11-24  Jakub Jelinek  <jakub@redhat.com>
 
 	PR c/97958
diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index 16abe163584..cf8e58bfbd5 100644
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,3 +1,15 @@
+2020-11-26  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
+
+	* g++spec.c (TIMELIB, TIME_LIBRARY): Remove.
+	(lang_specific_driver): Remove TIME_LIBRARY handling.
+
+2020-11-26  Thomas Schwinge  <thomas@codesourcery.com>
+
+	* parser.c (cp_parser_omp_var_list_no_open): Assert that array
+	section's 'low_bound', 'length' are not location wrapper nodes.
+	(cp_parser_oacc_all_clauses, cp_parser_oacc_cache): Instantiate
+	'auto_suppress_location_wrappers'.
+
 2020-11-25  Martin Sebor  <msebor@redhat.com>
 
 	PR bootstrap/94982
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index e948d754e51..cee6cc87e57 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,66 @@
+2020-11-26  Jakub Jelinek  <jakub@redhat.com>
+
+	PR tree-optimization/97997
+	* gcc.dg/tree-ssa/pr97997-1.c: New test.
+	* gcc.dg/tree-ssa/pr97997-2.c: New test.
+
+2020-11-26  Richard Biener  <rguenther@suse.de>
+
+	PR tree-optimization/97953
+	* gcc.dg/pr97953.c: New testcase.
+
+2020-11-26  Jakub Jelinek  <jakub@redhat.com>
+
+	PR tree-optimization/97979
+	* gcc.dg/pr97979.c: New test.
+	* gcc.c-torture/compile/pr97979.c: New test.
+
+2020-11-26  Richard Biener  <rguenther@suse.de>
+
+	PR testsuite/98002
+	* gcc.dg/strncmp-2.c: Call mprotect again before free.
+
+2020-11-26  Thomas Schwinge  <thomas@codesourcery.com>
+
+	* c-c++-common/goacc/cache-3-1.c: New.
+	* c-c++-common/goacc/cache-3-2.c: Likewise.
+	* c-c++-common/goacc/data-clause-1.c: Likewise.
+	* c-c++-common/goacc/data-clause-2.c: Likewise.
+	* c-c++-common/gomp/map-1.c: Adjust.
+	* c-c++-common/gomp/map-2.c: Likewise.
+	* g++.dg/goacc/cache-3-1.C: New.
+	* g++.dg/goacc/cache-3-2.C: Likewise.
+	* g++.dg/goacc/data-clause-1.C: Likewise.
+	* g++.dg/goacc/data-clause-2.C: Likewise.
+	* g++.dg/gomp/map-1.C: Adjust.
+	* g++.dg/gomp/map-2.C: Likewise.
+
+2020-11-26  Uroš Bizjak  <ubizjak@gmail.com>
+
+	PR target/97873
+	* gcc.target/i386/pr97873-3.c: New test.
+
+2020-11-26  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gnat.dg/multfixed.adb: Robustify.
+
+2020-11-26  Jakub Jelinek  <jakub@redhat.com>
+
+	PR target/96906
+	* gcc.target/i386/pr96906-1.c: New test.
+
+2020-11-26  Martin Uecker  <muecker@gwdg.de>
+
+	PR c/65455
+	PR c/92935
+	* gcc.dg/typeof-2.c: Adapt test.
+
+2020-11-26  David Edelsohn  <dje.gcc@gmail.com>
+
+	* gcc.dg/nextafter-1.c: Omit prototypes if _NEXT_AFTER_2 defined.
+	* gcc.dg/nextafter-2.c: Define _NEXT_AFTER_2.
+	* gcc.dg/profile-info-section.c: Skip on AIX.
+
 2020-11-25  Martin Sebor  <msebor@redhat.com>
 
 	PR bootstrap/94982
diff --git a/libgfortran/ChangeLog b/libgfortran/ChangeLog
index 0e5841cdcf2..ae50f915e7b 100644
--- a/libgfortran/ChangeLog
+++ b/libgfortran/ChangeLog
@@ -1,3 +1,25 @@
+2020-11-26  Maciej W. Rozycki  <macro@linux-mips.org>
+
+	* io/io.h [HAVE_NEWLOCALE]: Also check for HAVE_FREELOCALE and
+	HAVE_USELOCALE.
+	[HAVE_FREELOCALE && HAVE_NEWLOCALE && HAVE_USELOCALE]
+	(HAVE_POSIX_2008_LOCALE): New macro.
+	(st_parameter_dt) [HAVE_NEWLOCALE]: Check for
+	HAVE_POSIX_2008_LOCALE instead.
+	* io/transfer.c (data_transfer_init_worker, finalize_transfer)
+	[HAVE_USELOCALE]: Check for HAVE_POSIX_2008_LOCALE instead.
+	* io/unit.c [HAVE_NEWLOCALE]: Likewise.
+	(init_units) [HAVE_NEWLOCALE]: Likewise.
+	(close_units) [HAVE_FREELOCALE]: Likewise.
+	* runtime/error.c (gf_strerror) [HAVE_USELOCALE]: Likewise.
+
+2020-11-26  Maciej W. Rozycki  <macro@linux-mips.org>
+
+	* libgfortran.h: Use #if rather than #ifdef with
+	__FLT_HAS_INFINITY__, __DBL_HAS_INFINITY__,
+	__LDBL_HAS_INFINITY__, __FLT_HAS_QUIET_NAN__,
+	__DBL_HAS_QUIET_NAN__, and __LDBL_HAS_QUIET_NAN__.
+
 2020-11-21  Iain Sandoe  <iain@sandoe.co.uk>
 
 	* intrinsics/execute_command_line.c (environ): Use
diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index b73cddb8b24..2e5b87a33e9 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,95 @@
+2020-11-26  Jonathan Wakely  <jwakely@redhat.com>
+
+	* include/bits/atomic_wait.h (_GLIBCXX_HAVE_ATOMIC_WAIT):
+	Define.
+	* include/bits/atomic_base.h: Check _GLIBCXX_HAVE_ATOMIC_WAIT.
+	* include/bits/atomic_timed_wait.h: Likewise.
+	* include/bits/semaphore_base.h: Likewise.
+	* include/std/atomic: Likewise.
+	* include/std/latch: Likewise.
+	* include/std/semaphore: Likewise.
+
+2020-11-26  Jonathan Wakely  <jwakely@redhat.com>
+
+	* include/std/latch: Depend on _GLIBCXX_HAS_GTHREADS and
+	_GLIBCXX_HAVE_LINUX_FUTEX.
+	* include/std/version (__cpp_lib_latch): Define conditionally.
+
+2020-11-26  Jonathan Wakely  <jwakely@redhat.com>
+
+	* testsuite/lib/libstdc++.exp (check_effective_target_gthreads):
+	Call check_v3_target_gthreads not check_v3_target_gthreads_timed.
+
+2020-11-26  Jonathan Wakely  <jwakely@redhat.com>
+
+	* testsuite/28_regex/algorithms/regex_match/basic/string_range_01_03.cc:
+	Add dg-timeout-factor directive.
+	* testsuite/28_regex/algorithms/regex_match/cstring_bracket_01.cc:
+	Likewise.
+	* testsuite/28_regex/algorithms/regex_match/ecma/char/backref.cc:
+	Likewise.
+	* testsuite/28_regex/algorithms/regex_match/ecma/wchar_t/63199.cc:
+	Likewise.
+	* testsuite/28_regex/algorithms/regex_match/ecma/wchar_t/anymatcher.cc:
+	Likewise.
+	* testsuite/28_regex/algorithms/regex_match/ecma/wchar_t/cjk_match.cc:
+	Likewise.
+	* testsuite/28_regex/algorithms/regex_match/ecma/wchar_t/hex.cc:
+	Likewise.
+	* testsuite/28_regex/algorithms/regex_match/extended/wstring_locale.cc:
+	Likewise.
+	* testsuite/28_regex/algorithms/regex_search/61720.cc: Likewise.
+	* testsuite/28_regex/algorithms/regex_search/ecma/assertion.cc:
+	Likewise.
+	* testsuite/28_regex/algorithms/regex_search/ecma/string_01.cc:
+	Likewise.
+	* testsuite/28_regex/basic_regex/ctors/deduction.cc: Likewise.
+
+2020-11-26  Jonathan Wakely  <jwakely@redhat.com>
+
+	* testsuite/lib/libstdc++.exp (libstdc++_init): Only set
+	tool_timeout if it hasn't been set by the user already.
+
+2020-11-26  Jonathan Wakely  <jwakely@redhat.com>
+
+	PR libstdc++/97936
+	* testsuite/29_atomics/atomic/wait_notify/bool.cc: Fix missed
+	notifications by making the new thread wait until the parent
+	thread is waiting on the condition variable.
+	* testsuite/29_atomics/atomic/wait_notify/pointers.cc: Likewise.
+	* testsuite/29_atomics/atomic_flag/wait_notify/1.cc: Likewise.
+	* testsuite/29_atomics/atomic_ref/wait_notify.cc: Likewise.
+
+2020-11-26  Jonathan Wakely  <jwakely@redhat.com>
+
+	* testsuite/18_support/96817.cc: Use new effective-target
+	keywords to select supported targets more effectively.
+	* testsuite/30_threads/call_once/66146.cc: Likewise.
+	* testsuite/lib/libstdc++.exp (check_effective_target_futex):
+	Define new proc.
+	(check_effective_target_gthreads): Define new proc to replace
+	dg-require-gthreads.
+
+2020-11-26  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
+
+	* acinclude.m4 (GLIBCXX_ENABLE_LIBSTDCXX_TIME): Remove libposix4
+	references.
+	<solaris*>: Don't use -lrt any longer.
+	* configure: Regenerate.
+	* doc/xml/manual/configure.xml (--enable-libstdcxx-time=OPTION):
+	Remove libposix4 reference.
+
+2020-11-26  Jonathan Wakely  <jwakely@redhat.com>
+
+	PR libstdc++/98001
+	* testsuite/ext/stdio_filebuf/char/79820.cc: Do not pass invalid
+	FILE* to constructor.
+
+2020-11-26  Jonathan Wakely  <jwakely@redhat.com>
+
+	* include/precompiled/stdc++.h: Add new headers.
+	* include/std/stop_token: Include <semaphore> unconditionally.
+
 2020-11-25  Jonathan Wakely  <jwakely@redhat.com>
 
 	* include/bits/atomic_timed_wait.h (__cond_wait_until): Do not