Daily bump.

12 files changed, 712 insertions, 1 deletions

diff --git a/ChangeLog b/ChangeLog
index 2476259..5d94c14 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2021-04-28  Jakub Jelinek  <jakub@redhat.com>
+	    Tobias Burnus  <tobias@codesourcery.com>
+
+	* configure.ac (--enable-offload-defaulted): New.
+	* configure: Regenerate.
+
 2021-04-23  David Faust  <david.faust@oracle.com>
 
 	* MAINTAINERS (Write After Approval): Add myself.
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 74eda05..5ee2458 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,251 @@
+2021-04-28  Jonathan Wright  <jonathan.wright@arm.com>
+
+	* config/aarch64/aarch64-simd-builtins.def: Modify comment to
+	make consistent with updated RTL pattern.
+	* config/aarch64/aarch64-simd.md (aarch64_<sur>qmovn<mode>):
+	Implement using ss_truncate and us_truncate rather than
+	unspecs.
+	* config/aarch64/iterators.md: Remove redundant unspecs and
+	iterator: UNSPEC_[SU]QXTN and SUQMOVN respectively.
+
+2021-04-28  Jonathan Wright  <jonathan.wright@arm.com>
+
+	* config/aarch64/arm_acle.h (__attribute__): Make intrinsic
+	attributes consistent with those defined in arm_neon.h.
+
+2021-04-28  Jonathan Wright  <jonathan.wright@arm.com>
+
+	* config/aarch64/arm_fp16.h (__attribute__): Make intrinsic
+	attributes consistent with those defined in arm_neon.h.
+
+2021-04-28  Jonathan Wright  <jonathan.wright@arm.com>
+
+	* config/aarch64/aarch64-simd-builtins.def: Add
+	float_trunc_rodd builtin generator macros.
+	* config/aarch64/aarch64-simd.md (aarch64_float_trunc_rodd_df):
+	Define.
+	(aarch64_float_trunc_rodd_lo_v2sf): Define.
+	(aarch64_float_trunc_rodd_hi_v4sf_le): Define.
+	(aarch64_float_trunc_rodd_hi_v4sf_be): Define.
+	(aarch64_float_trunc_rodd_hi_v4sf): Define.
+	* config/aarch64/arm_neon.h (vcvtx_f32_f64): Use RTL builtin
+	instead of inline asm.
+	(vcvtx_high_f32_f64): Likewise.
+	(vcvtxd_f32_f64): Likewise.
+	* config/aarch64/iterators.md: Add FCVTXN unspec.
+
+2021-04-28  Jonathan Wright  <jonathan.wright@arm.com>
+
+	* config/aarch64/aarch64-simd-builtins.def: Add tbx1 builtin
+	generator macros.
+	* config/aarch64/aarch64-simd.md (aarch64_tbx1<mode>):
+	Define.
+	* config/aarch64/arm_neon.h (vqtbx1_s8): USE RTL builtin
+	instead of inline asm.
+	(vqtbx1_u8): Likewise.
+	(vqtbx1_p8): Likewise.
+	(vqtbx1q_s8): Likewise.
+	(vqtbx1q_u8): Likewise.
+	(vqtbx1q_p8): Likewise.
+	(vtbx2_s8): Likewise.
+	(vtbx2_u8): Likewise.
+	(vtbx2_p8): Likewise.
+
+2021-04-28  Jonathan Wright  <jonathan.wright@arm.com>
+
+	* config/aarch64/aarch64-simd-builtins.def: Add tbl1 builtin
+	generator macros.
+	* config/aarch64/arm_neon.h (vqtbl1_p8): Use RTL builtin
+	instead of inline asm.
+	(vqtbl1_s8): Likewise.
+	(vqtbl1_u8): Likewise.
+	(vqtbl1q_p8): Likewise.
+	(vqtbl1q_s8): Likewise.
+	(vqtbl1q_u8): Likewise.
+	(vtbl1_s8): Likewise.
+	(vtbl1_u8): Likewise.
+	(vtbl1_p8): Likewise.
+	(vtbl2_s8): Likewise.
+	(vtbl2_u8): Likewise.
+	(vtbl2_p8): Likewise.
+
+2021-04-28  Jonathan Wright  <jonathan.wright@arm.com>
+
+	* config/aarch64/aarch64-simd-builtins.def: Add polynomial
+	ssri_n buitin generator macro.
+	* config/aarch64/arm_neon.h (vsri_n_p8): Use RTL builtin
+	instead of inline asm.
+	(vsri_n_p16): Likewise.
+	(vsri_n_p64): Likewise.
+	(vsriq_n_p8): Likewise.
+	(vsriq_n_p16): Likewise.
+	(vsriq_n_p64): Likewise.
+
+2021-04-28  Jonathan Wright  <jonathan.wright@arm.com>
+
+	* config/aarch64/aarch64-simd-builtins.def: Use VALLP mode
+	iterator for polynomial ssli_n builtin generator macro.
+	* config/aarch64/arm_neon.h (vsli_n_p8): Use RTL builtin
+	instead of inline asm.
+	(vsli_n_p16): Likewise.
+	(vsliq_n_p8): Likewise.
+	(vsliq_n_p16): Likewise.
+	* config/aarch64/iterators.md: Define VALLP mode iterator.
+
+2021-04-28  Jonathan Wright  <jonathan.wright@arm.com>
+
+	* config/aarch64/aarch64-simd-builtins.def: Use VDQV_L
+	iterator to generate [su]adalp RTL builtins.
+	* config/aarch64/aarch64-simd.md: Use VDQV_L iterator in
+	[su]adalp RTL pattern.
+	* config/aarch64/arm_neon.h (vpadal_s32): Use RTL builtin
+	instead of inline asm.
+	(vpadal_u32): Likewise.
+
+2021-04-28  Jonathan Wright  <jonathan.wright@arm.com>
+
+	* config/aarch64/aarch64-simd-builtins.def: Add [su]addlp
+	builtin generator macros.
+	* config/aarch64/aarch64-simd.md (aarch64_<su>addlp<mode>):
+	Define.
+	* config/aarch64/arm_neon.h (vpaddl_s8): Use RTL builtin
+	instead of inline asm.
+	(vpaddl_s16): Likewise.
+	(vpaddl_s32): Likewise.
+	(vpaddl_u8): Likewise.
+	(vpaddl_u16): Likewise.
+	(vpaddl_u32): Likewise.
+	(vpaddlq_s8): Likewise.
+	(vpaddlq_s16): Likewise.
+	(vpaddlq_s32): Likewise.
+	(vpaddlq_u8): Likewise.
+	(vpaddlq_u16): Likewise.
+	(vpaddlq_u32): Liwewise.
+	* config/aarch64/iterators.md: Define [SU]ADDLP unspecs with
+	appropriate attributes.
+
+2021-04-28  Jonathan Wright  <jonathan.wright@arm.com>
+
+	* config/aarch64/aarch64-simd-builtins.def: Use VDQ_I iterator
+	for aarch64_addp<mode> builtin macro generator.
+	* config/aarch64/aarch64-simd.md: Use VDQ_I iterator in
+	aarch64_addp<mode> RTL pattern.
+	* config/aarch64/arm_neon.h (vpaddq_s8): Use RTL builtin
+	instead of inline asm.
+	(vpaddq_s16): Likewise.
+	(vpaddq_s32): Likewise.
+	(vpaddq_s64): Likewise.
+	(vpaddq_u8): Likewise.
+	(vpaddq_u16): Likewise.
+	(vpaddq_u32): Likewise.
+	(vpaddq_u64): Likewise.
+
+2021-04-28  Jonathan Wright  <jonathan.wright@arm.com>
+
+	* config/aarch64/aarch64-simd-builtins.def: Add sq[r]dmulh_n
+	builtin generator macros.
+	* config/aarch64/aarch64-simd.md (aarch64_sq<r>dmulh_n<mode>):
+	Define.
+	* config/aarch64/arm_neon.h (vqdmulh_n_s16): Use RTL builtin
+	instead of inline asm.
+	(vqdmulh_n_s32): Likewise.
+	(vqdmulhq_n_s16): Likewise.
+	(vqdmulhq_n_s32): Likewise.
+	(vqrdmulh_n_s16): Likewise.
+	(vqrdmulh_n_s32): Likewise.
+	(vqrdmulhq_n_s16): Likewise.
+	(vqrdmulhq_n_s32): Likewise.
+
+2021-04-28  Tobias Burnus  <tobias@codesourcery.com>
+
+	* doc/install.texi (--enable-offload-defaulted): Document.
+
+2021-04-28  Senthil Kumar Selvaraj  <saaadhu@gcc.gnu.org>
+
+	* config/avr/avr-dimode.md: Turn existing patterns into
+	define_insn_and_split style patterns where the splitter
+	adds a clobber of the condition code register.  Drop "cc"
+	attribute.  Add new patterns to match output of
+	the splitters.
+	* config/avr/avr-fixed.md: Likewise.
+	* config/avr/avr.c (cc_reg_rtx): New.
+	(avr_parallel_insn_from_insns): Adjust insn count
+	for removal of set of cc0.
+	(avr_is_casesi_sequence): Likewise.
+	(avr_casei_sequence_check_operands): Likewise.
+	(avr_optimize_casesi): Likewise. Also insert
+	new insns after jump_insn.
+	(avr_pass_casesi::avr_rest_of_handle_casesi): Adjust
+	for removal of set of cc0.
+	(avr_init_expanders): Initialize cc_reg_rtx.
+	(avr_regno_reg_class): Handle REG_CC.
+	(cond_string): Remove usage of CC_OVERFLOW_UNUSABLE.
+	(avr_notice_update_cc): Remove function.
+	(ret_cond_branch): Remove usage of CC_OVERFLOW_UNUSABLE.
+	(compare_condition): Adjust for PARALLEL with
+	REG_CC clobber.
+	(out_shift_with_cnt): Likewise.
+	(ashlhi3_out): Likewise.
+	(ashrhi3_out): Likewise.
+	(lshrhi3_out): Likewise.
+	(avr_class_max_nregs): Return single reg for REG_CC.
+	(avr_compare_pattern): Check for REG_CC instead
+	of cc0_rtx.
+	(avr_reorg_remove_redundant_compare): Likewise.
+	(avr_reorg):Adjust for PARALLEL with REG_CC clobber.
+	(avr_hard_regno_nregs): Return single reg for REG_CC.
+	(avr_hard_regno_mode_ok): Allow only CCmode for REG_CC.
+	(avr_md_asm_adjust): Clobber REG_CC.
+	(TARGET_HARD_REGNO_NREGS): Define.
+	(TARGET_CLASS_MAX_NREGS): Define.
+	(TARGET_MD_ASM_ADJUST): Define.
+	* config/avr/avr.h (FIRST_PSEUDO_REGISTER): Adjust
+	for REG_CC.
+	(enum reg_class): Add CC_REG class.
+	(NOTICE_UPDATE_CC): Remove.
+	(CC_OVERFLOW_UNUSABLE): Remove.
+	(CC_NO_CARRY): Remove.
+	* config/avr/avr.md: Turn existing patterns into
+	define_insn_and_split style patterns where the splitter
+	adds a clobber of the condition code register.  Drop "cc"
+	attribute.  Add new patterns to match output of
+	the splitters.
+	(sez): Remove unused pattern.
+
+2021-04-28  Richard Earnshaw  <rearnsha@arm.com>
+
+	PR target/100311
+	* config/arm/arm.c (arm_hard_regno_mode_ok): Only allow VPR to be
+	used in HImode.
+
+2021-04-28  Richard Sandiford  <richard.sandiford@arm.com>
+
+	PR target/100305
+	* config/aarch64/constraints.md (Utq): Require the address to
+	be valid for both the element mode and for V2DImode.
+
+2021-04-28  Jakub Jelinek  <jakub@redhat.com>
+	    Tobias Burnus  <tobias@codesourcery.com>
+
+	* configure.ac (OFFLOAD_DEFAULTED): AC_DEFINE if offload-defaulted.
+	* gcc.c (process_command): New variable.
+	(driver::maybe_putenv_OFFLOAD_TARGETS): If OFFLOAD_DEFAULTED,
+	set it if -foffload is defaulted.
+	* lto-wrapper.c (OFFLOAD_TARGET_DEFAULT_ENV): Define.
+	(compile_offload_image): If OFFLOAD_DEFAULTED and
+	OFFLOAD_TARGET_DEFAULT is in the environment, don't fail
+	if corresponding mkoffload can't be found.
+	(compile_images_for_offload_targets): Likewise.  Free and clear
+	offload_names if no valid offload is found.
+	* config.in: Regenerate.
+	* configure: Regenerate.
+
+2021-04-28  Richard Biener  <rguenther@suse.de>
+
+	PR tree-optimization/100292
+	* tree-vect-generic.c (expand_vector_condition): Do not fold
+	the comparisons.
+
 2021-04-27  David Edelsohn  <dje.gcc@gmail.com>
 
 	* config/rs6000/aix.h (SUBTARGET_DRIVER_SELF_SPECS): New.
diff --git a/gcc/DATESTAMP b/gcc/DATESTAMP
index 5bc3f0e..d04d980 100644
--- a/gcc/DATESTAMP
+++ b/gcc/DATESTAMP
@@ -1 +1 @@
-20210428
+20210429
diff --git a/gcc/ada/ChangeLog b/gcc/ada/ChangeLog
index 55ef853..f3ad896 100644
--- a/gcc/ada/ChangeLog
+++ b/gcc/ada/ChangeLog
@@ -1,3 +1,301 @@
+2021-04-28  Piotr Trojanek  <trojanek@adacore.com>
+
+	* sem_ch13.adb, sem_util.adb: Fix style.
+
+2021-04-28  Piotr Trojanek  <trojanek@adacore.com>
+
+	* nlists.ads (List_Length): Adapt comment to match the
+	behaviour.
+
+2021-04-28  Arnaud Charlet  <charlet@adacore.com>
+
+	* sem_eval.adb (Eval_Selected_Component): Only consider compile
+	time known aggregates.
+
+2021-04-28  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* libgnat/s-fatgen.adb: Add use clause for Interfaces.Unsigned_16
+	and Interfaces.Unsigned_32.
+	(Small16): New constant.
+	(Small32): Likewise.
+	(Small64): Likewise.
+	(Small80): Likewise.
+	(Pred): Declare a local overlay for Small and return it negated
+	for zero if the type does not support denormalized numbers.
+	(Succ): Likewise, but return it directly.
+
+2021-04-28  Piotr Trojanek  <trojanek@adacore.com>
+
+	* inline.adb (Formal_Is_Used_Once): Refine type of the counter
+	variable; remove redundant assignment.
+
+2021-04-28  Patrick Bernardi  <bernardi@adacore.com>
+
+	* libgnarl/s-interr.adb (Install_Restricted_Handlers): Change
+	Prio parameter to type Interrupt_Priority.
+	* libgnarl/s-interr.ads (Install_Restricted_Handlers): Likewise.
+	* libgnarl/s-interr__dummy.adb (Install_Restricted_Handlers):
+	Likewise.
+	* libgnarl/s-interr__hwint.adb (Install_Restricted_Handlers):
+	Likewise.
+	* libgnarl/s-interr__sigaction.adb (Install_Restricted_Handlers):
+	Likewise.
+	* libgnarl/s-interr__vxworks.adb (Install_Restricted_Handlers):
+	Likewise.
+
+2021-04-28  Piotr Trojanek  <trojanek@adacore.com>
+
+	* sem_type.ads (Write_Interp_Ref): Removed; no longer needed.
+	* sem_type.adb (Headers): Removed; now the hash table is
+	directly in the Interp_Map alone.
+	(Interp_Map): Now an instance of the GNAT.HTable.Simple_HTable.
+	(Last_Overloaded): New variable to emulate Interp_Map.Last.
+	(Add_One_Interp): Adapt to new data structure.
+	(Get_First_Interp): Likewise.
+	(Hash): Likewise.
+	(Init_Interp_Tables): Likewise.
+	(New_Interps): Likewise.
+	(Save_Interps): Likewise; handle O_N variable like in
+	Get_First_Interp.
+	(Write_Interp_Ref): Removed; no longer needed.
+
+2021-04-28  Piotr Trojanek  <trojanek@adacore.com>
+
+	* inline.adb (Do_Reset_Calls): Now an instance of Traverse_Proc.
+
+2021-04-28  Piotr Trojanek  <trojanek@adacore.com>
+
+	* sem_ch13.adb (Analyze_Aspect_Static): Reuse
+	Error_Msg_Ada_2020_Feature for aspect Static.
+	(Analyze_One_Aspect): Likewise for aspect Full_Access.
+
+2021-04-28  Piotr Trojanek  <trojanek@adacore.com>
+
+	* sem_ch13.adb (Analyze_Aspect_Static): Refactor to have a
+	single check for the expression being present; adapt comments.
+
+2021-04-28  Piotr Trojanek  <trojanek@adacore.com>
+
+	* sem_ch13.adb (Analyze_Aspect_Static): Use aspect name in the
+	error message.
+
+2021-04-28  Piotr Trojanek  <trojanek@adacore.com>
+
+	* sem_eval.adb (Eval_Selected_Component): Simplify with
+	Unqualify.
+
+2021-04-28  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* libgnat/s-valrea.adb (Fast2Sum): New function.
+	(Integer_to_Real): Use it in an iterated addition with exact
+	error handling for the case where an extra digit is needed.
+	Move local variable now only used in the exponentiation case.
+
+2021-04-28  Yannick Moy  <moy@adacore.com>
+
+	* errout.adb: (Error_Msg_Internal): Use span instead of
+	location.
+	(Error_Msg, Error_Msg_NEL): Add versions with span parameter.
+	(Error_Msg_F, Error_Msg_FE, Error_Msg_N, Error_Msg_NE,
+	Error_Msg_NW): Retrieve span from node.
+	(First_Node): Use the new First_And_Last_Nodes.
+	(First_And_Last_Nodes): Expand on previous First_Node. Apply to
+	other nodes than expressions.
+	(First_Sloc): Protect against inconsistent locations.
+	(Last_Node): New function based on First_And_Last_Nodes.
+	(Last_Sloc): New function similar to First_Sloc.
+	(Output_Messages): Update output when -gnatdF is used. Use
+	character ~ for making the span visible, similar to what is done
+	in GCC and Clang.
+	* errout.ads (Error_Msg, Error_Msg_NEL): Add versions with span
+	parameter.
+	(First_And_Last_Nodes, Last_Node, Last_Sloc): New subprograms.
+	* erroutc.adb: Adapt to Sptr field being a span.
+	* erroutc.ads (Error_Msg_Object): Change field Sptr from
+	location to span.
+	* errutil.adb: Adapt to Sptr field being a span.
+	* freeze.adb: Use Errout reporting procedures for nodes to get
+	spans.
+	* par-ch3.adb: Likewise.
+	* par-prag.adb: Likewise.
+	* par-util.adb: Likewise.
+	* sem_case.adb: Likewise.
+	* sem_ch13.adb: Likewise.
+	* sem_ch3.adb: Likewise.
+	* sem_prag.adb: Likewise.
+	* types.ads: (Source_Span): New type for spans.
+	(To_Span): Basic constructors for spans.
+
+2021-04-28  Arnaud Charlet  <charlet@adacore.com>
+
+	* einfo.adb (Discriminant_Constraint): Refine assertion.
+
+2021-04-28  Gary Dismukes  <dismukes@adacore.com>
+
+	* exp_util.adb (Add_Own_DIC): Suppress expansion of a DIC pragma
+	when the pragma occurs for an abstract type, since that could
+	lead to a call to an abstract function, and such DIC checks can
+	never be performed for abstract types in any case.
+	* sem_disp.adb (Check_Dispatching_Context): Suppress the check
+	for illegal calls to abstract subprograms when the call occurs
+	within a Default_Initial_Condition aspect and the call is passed
+	the current instance as an actual.
+	(Has_Controlling_Current_Instance_Actual): New function to test
+	a call to see if it has any actuals given by direct references
+	to a current instance of a type
+	* sem_res.adb (Resolve_Actuals): Issue an error for a call
+	within a DIC aspect to a nonprimitive subprogram with an actual
+	given by the name of the DIC type's current instance (which will
+	show up as a reference to the formal parameter of a DIC
+	procedure).
+
+2021-04-28  Ed Schonberg  <schonberg@adacore.com>
+
+	* exp_ch3.adb (Expand_Record_Extension): Set Parent_Subtype on
+	the type extension when within a generic unit, even though
+	expansion is disabled, to allow for proper resolution of
+	selected components inherited from an ancestor.
+
+2021-04-28  Arnaud Charlet  <charlet@adacore.com>
+
+	* sem_aux.adb (Is_Limited_Type): Fix logic to check Is_Type
+	before assuming Ent is a typo.
+	* sem_ch4.adb (Analyze_Expression_With_Actions): Update
+	comments, minor reformatting.
+	* sem_res.adb (Resolve_Declare_Expression): Add protection
+	against no type.
+
+2021-04-28  Arnaud Charlet  <charlet@adacore.com>
+
+	* exp_ch6.adb: Fix typo in comment.
+	* sem_ch3.adb (Access_Subprogram_Declaration): Add missing call
+	to Create_Extra_Formals. Remove obsolete bootstrap check.
+	* sem_eval.adb (Eval_Selected_Component): Simplify a
+	selected_component on an aggregate.
+
+2021-04-28  Piotr Trojanek  <trojanek@adacore.com>
+
+	* fmap.ads (Reset_Tables): Remove outdated references to
+	GNSA/ASIS.
+	* sem_eval.ads (Initialize): Likewise.
+	* sem_type.adb (Headers): Remove initialization at elaboration.
+	* sem_type.ads (Init_Interp_Tables): Remove outdated reference
+	to gnatf.
+	* stringt.ads (Initialize): Fix style in comment.
+
+2021-04-28  Piotr Trojanek  <trojanek@adacore.com>
+
+	* sem_res.ads: Update reference in comment.
+	* sem_type.ads: Fix casing in a name of a unit.
+
+2021-04-28  Yannick Moy  <moy@adacore.com>
+
+	* ghost.adb (Check_Ghost_Context): Add continuation message when
+	in predicate.
+
+2021-04-28  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* libgnat/s-valrea.adb (Integer_to_Real): Use a subtype of Num
+	for the component type of the table of powers of ten.
+	* libgnat/s-valuer.adb (Round_Extra): Add assertion on Base.
+
+2021-04-28  Piotr Trojanek  <trojanek@adacore.com>
+
+	* sem_ch5.adb (Analyze_Case_Statement): Extend optimization to
+	all objects; fix typo in comment.
+
+2021-04-28  Piotr Trojanek  <trojanek@adacore.com>
+
+	* exp_ch9.adb (Build_Barrier_Function): Refine type of a
+	protected type entity.
+	(Is_Pure_Barrier): Fix style.
+
+2021-04-28  Bob Duff  <duff@adacore.com>
+
+	* exp_ch3.adb (Simple_Init_Defaulted_Type): Simplify the code,
+	and always use OK_Convert_To, rather than Unchecked_Convert_To
+	and Convert_To.
+
+2021-04-28  Arnaud Charlet  <charlet@adacore.com>
+
+	* sem_ch3.adb (Analyze_Object_Declaration): Remove dead code.
+	* ali.ads, ali.adb (Scan_ALI): Remove unused parameters.
+	Remove unused code related to Xref lines.
+	(Get_Typeref): Removed, no longer used.
+
+2021-04-28  Arnaud Charlet  <charlet@adacore.com>
+
+	* exp_attr.adb (Build_Array_VS_Func, Build_Record_VS_Func,
+	Expand_N_Attribute_Reference): Use Get_Fullest_View instead of
+	Validated_View.
+	(Build_Record_VS_Func): Adjust to keep using Validated_View.
+	(Expand_N_Attribute_Reference) [Valid]: Use
+	Small_Integer_Type_For to allow for more compile time
+	evaluations.
+	* sem_util.adb (Cannot_Raise_Constraint_Error): Add more precise
+	support for N_Indexed_Component and fix support for
+	N_Selected_Component which wasn't completely safe.
+	(List_Cannot_Raise_CE): New.
+	* libgnat/i-cobol.adb (Valid_Packed): Simplify test to address
+	new GNAT warning.
+
+2021-04-28  Arnaud Charlet  <charlet@adacore.com>
+
+	* .gitignore: New.
+	* doc/share/conf.py: Add Python 3 compatibility.
+	* doc/share/gnat.sty: Add missing file.
+
+2021-04-28  Richard Wai  <richard@annexi-strayline.com>
+
+	* libgnat/a-cohase.ads (Cursor): Synchronize comments for the Cursor
+	type definition to be consistent with identical definitions in other
+	container packages. Add additional comments regarding the importance of
+	maintaining the "Position" component for predefined equality.
+	* libgnat/a-cohama.ads (Cursor): Likewise.
+	* libgnat/a-cihama.ads (Cursor): Likewise.
+	* libgnat/a-cohase.adb (Find, Insert): Ensure that Cursor objects
+	always have their "Position" component set to ensure predefined
+	equality works as required.
+	* libgnat/a-cohama.adb (Find, Insert): Likewise.
+	* libgnat/a-cihama.adb (Find, Insert): Likewise.
+
+2021-04-28  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/decl.c (gnat_to_gnu_subprog_type): Do not demote a
+	const or pure function because of a parameter whose type is pointer
+	to function.
+	* gcc-interface/trans.c (Call_to_gnu): Do not put back a conversion
+	between an actual and a formal that are unconstrained array types.
+	(gnat_gimplify_expr) <CALL_EXPR>: New case.
+	* gcc-interface/utils2.c (build_binary_op): Do not use |= operator.
+	(gnat_stabilize_reference_1): Likewise.
+	(gnat_rewrite_reference): Likewise.
+	(build_unary_op): Do not clear existing TREE_CONSTANT on the result.
+	(gnat_build_constructor): Also accept the address of a constant
+	CONSTRUCTOR as constant element.
+
+2021-04-28  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/trans.c (is_array_of_scalar_type): New predicate.
+	(find_decls_r): New function.
+	(return_slot_opt_for_pure_call_p): New predicate.
+	(Call_to_gnu): Do not create a temporary for the return value if the
+	parent node is an aggregate.  If there is a target, try to apply the
+	return slot optimization to regular calls to pure functions returning
+	an array of scalar type.
+
+2021-04-28  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gcc-interface/trans.c (language_function): Add comment.
+	(loop_info_d): Add fndecl and invariants fields.
+	(find_loop_for): Test fndecl instead of the context of var.
+	(find_loop): New function.
+	(Regular_Loop_to_gnu): Fold back into...
+	(Loop_Statement_to_gnu): ...this.  Emit invariants on entry, if any.
+	(gnat_to_gnu) <N_Selected_Component>: Record nonconstant invariant
+	offset computations in loops when optimization is enabled.
+	* gcc-interface/utils2.c (gnat_invariant_expr): Handle BIT_AND_EXPR.
+
 2021-04-20  Martin Liska  <mliska@suse.cz>
 
 	* gnatvsn.ads: Bump Library_Version to 12.
diff --git a/gcc/c-family/ChangeLog b/gcc/c-family/ChangeLog
index 38855e1..b31a7ba 100644
--- a/gcc/c-family/ChangeLog
+++ b/gcc/c-family/ChangeLog
@@ -1,3 +1,8 @@
+2021-04-28  Patrick McGehearty  <patrick.mcgehearty@oracle.com>
+
+	* c-cppbuiltin.c (c_cpp_builtins): Add supporting macros for new
+	complex divide
+
 2021-04-26  Thomas Schwinge  <thomas@codesourcery.com>
 	    Nathan Sidwell  <nathan@codesourcery.com>
 	    Tom de Vries  <vries@codesourcery.com>
diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index ca8382f..a093657 100644
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,3 +1,7 @@
+2021-04-28  Jakub Jelinek  <jakub@redhat.com>
+
+	* module.cc: Remove #error that triggers if DEV-PHASE is empty.
+
 2021-04-27  Jason Merrill  <jason@redhat.com>
 
 	PR c++/92145
diff --git a/gcc/fortran/ChangeLog b/gcc/fortran/ChangeLog
index c368926..226fd84 100644
--- a/gcc/fortran/ChangeLog
+++ b/gcc/fortran/ChangeLog
@@ -1,3 +1,14 @@
+2021-04-28  Tobias Burnus  <tobias@codesourcery.com>
+
+	* openmp.c (gfc_match_omp_variable_list): Gobble whitespace before
+	checking whether a '%' or parenthesis-open follows as next character.
+
+2021-04-28  José Rui Faustino de Sousa  <jrfsousa@gmail.com>
+
+	PR fortran/82376
+	* trans-expr.c (gfc_conv_procedure_call): Evaluate function result
+	and then pass a pointer.
+
 2021-04-26  Thomas Schwinge  <thomas@codesourcery.com>
 	    Nathan Sidwell  <nathan@codesourcery.com>
 	    Tom de Vries  <vries@codesourcery.com>
diff --git a/gcc/po/ChangeLog b/gcc/po/ChangeLog
index d3638ed..94bc018 100644
--- a/gcc/po/ChangeLog
+++ b/gcc/po/ChangeLog
@@ -1,3 +1,9 @@
+2021-04-28  Joseph Myers  <joseph@codesourcery.com>
+
+	* be.po, da.po, de.po, el.po, es.po, fi.po, fr.po, hr.po, id.po,
+	ja.po, nl.po, ru.po, sr.po, sv.po, tr.po, uk.po, vi.po, zh_CN.po,
+	zh_TW.po: Update.
+
 2021-04-20  Joseph Myers  <joseph@codesourcery.com>
 
 	* gcc.pot: Regenerate.
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 122dddc..69f8f0a 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,45 @@
+2021-04-28  Tobias Burnus  <tobias@codesourcery.com>
+
+	* gfortran.dg/gomp/map-5.f90: New test.
+
+2021-04-28  Patrick McGehearty  <patrick.mcgehearty@oracle.com>
+
+	* gcc.c-torture/execute/ieee/cdivchkd.c: New test.
+	* gcc.c-torture/execute/ieee/cdivchkf.c: Likewise.
+	* gcc.c-torture/execute/ieee/cdivchkld.c: Likewise.
+
+2021-04-28  Alexandre Oliva  <oliva@adacore.com>
+
+	* gcc.target/i386/pr89676.c: Add -fomit-frame-pointer.
+
+2021-04-28  Alexandre Oliva  <oliva@adacore.com>
+
+	* gcc.dg/debug/dwarf2/inline5.c: Adjust pattern to avoid
+	mismatch when asm comments start with "/ ".
+
+2021-04-28  Richard Sandiford  <richard.sandiford@arm.com>
+
+	PR target/100305
+	* gcc.c-torture/compile/pr100305.c: New test.
+
+2021-04-28  José Rui Faustino de Sousa  <jrfsousa@gmail.com>
+
+	PR fortran/82376
+	* gfortran.dg/PR82376.f90: New test.
+
+2021-04-28  Richard Biener  <rguenther@suse.de>
+
+	PR tree-optimization/100292
+	* gcc.dg/pr100292.c: New testcase.
+
+2021-04-28  Richard Wai  <richard@annexi-strayline.com>
+
+	* gnat.dg/containers2.adb: New test.
+
+2021-04-28  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* gnat.dg/opt93.ads, gnat.dg/opt93.adb: New test.
+
 2021-04-27  Jason Merrill  <jason@redhat.com>
 
 	PR c++/92145
diff --git a/libgcc/ChangeLog b/libgcc/ChangeLog
index 4dea57c..882fecb 100644
--- a/libgcc/ChangeLog
+++ b/libgcc/ChangeLog
@@ -1,3 +1,12 @@
+2021-04-28  Patrick McGehearty  <patrick.mcgehearty@oracle.com>
+
+	* libgcc2.c (XMTYPE, XCTYPE, RBIG, RMIN, RMIN2, RMINSCAL, RMAX2):
+	Define.
+	(__divsc3, __divdc3, __divxc3, __divtc3): Improve complex divide.
+	* config/rs6000/_divkc3.c (RBIG, RMIN, RMIN2, RMINSCAL, RMAX2):
+	Define.
+	(__divkc3): Improve complex divide.
+
 2021-04-23  Michael Meissner  <meissner@linux.ibm.com>
 
 	PR target/98952
diff --git a/libgomp/ChangeLog b/libgomp/ChangeLog
index b8a5ad1..08583f9 100644
--- a/libgomp/ChangeLog
+++ b/libgomp/ChangeLog
@@ -1,3 +1,13 @@
+2021-04-28  Jakub Jelinek  <jakub@redhat.com>
+	    Tobias Burnus  <tobias@codesourcery.com>
+
+	* configure.ac (OFFLOAD_DEFAULTED): AC_DEFINE if offload-defaulted.
+	* target.c (gomp_load_plugin_for_device): If set and if a plugin
+	can't be dlopened, silently assume it has no devices.
+	* Makefile.in: Regenerate.
+	* config.h.in: Regenerate.
+	* configure: Regenerate.
+
 2021-04-26  Tobias Burnus  <tobias@codesourcery.com>
 
 	* testsuite/libgomp.oacc-fortran/par-reduction-2-1.f:
diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 20e873c..dbfbb3e 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,75 @@
+2021-04-28  Jonathan Wakely  <jwakely@redhat.com>
+
+	PR libstdc++/97930
+	* testsuite/20_util/pair/requirements/structural.cc: New test.
+
+2021-04-28  Jonathan Wakely  <jwakely@redhat.com>
+
+	* include/bits/stl_pair.h (pair) [__cplusplus > 202002]: Add
+	new definitions for constructors and assignment operators using
+	concepts for constraints.
+	* testsuite/20_util/pair/cons/99957.cc: Disable for C++20 and
+	later.
+	* testsuite/20_util/pair/cons/explicit_construct.cc: Adjust
+	expected error messages to also match C++20 errors.
+
+2021-04-28  Jonathan Wakely  <jwakely@redhat.com>
+
+	PR libstdc++/99957
+	* include/bits/stl_pair.h (_PCC::_MoveCopyPair, _PCC::_CopyMovePair):
+	Combine and replace with ...
+	(_PCC::_DeprConsPair): New SFINAE helper function.
+	(pair): Merge preprocessor blocks so that all C++03 members
+	are defined together at the end.
+	(pair::pair(const _T1&, _U2&&), pair::pair(_U1&&, const _T2&)):
+	Replace _T1 and _T2 parameters with __null_ptr_constant and
+	adjust constraints.
+	* testsuite/20_util/pair/40925.cc: Use nullptr instead of 0.
+	* testsuite/20_util/pair/cons/explicit_construct.cc: Likewise.
+	* testsuite/20_util/pair/cons/99957.cc: New test.
+
+2021-04-28  Jonathan Wakely  <jwakely@redhat.com>
+
+	* include/bits/basic_string.h (__cpp_lib_constexpr_string): Define.
+	* include/std/version (__cpp_lib_constexpr_string): Define.
+	* testsuite/21_strings/char_traits/requirements/constexpr_functions_c++17.cc:
+	Check for __cpp_lib_constexpr_string.
+	* testsuite/21_strings/char_traits/requirements/constexpr_functions_c++20.cc:
+	Likewise.
+	* testsuite/21_strings/char_traits/requirements/version.cc: New test.
+
+2021-04-28  Jonathan Wakely  <jwakely@redhat.com>
+
+	* doc/Makefile.am (stamp-pdf-doxygen): Improve comment about
+	dealing with errors. Use '@' to prevent shell command being
+	echoed.
+	* doc/Makefile.in: Regenerate.
+
+2021-04-28  Jonathan Wakely  <jwakely@redhat.com>
+
+	PR libstdc++/100298
+	* include/bits/std_thread.h (thread::hardware_concurrency): Add
+	missing noexcept to inline definition for non-gthreads targets.
+
+2021-04-28  Patrick Palka  <ppalka@redhat.com>
+
+	PR libstdc++/100187
+	PR libstdc++/100237
+	PR libstdc++/100249
+	PR libstdc++/100287
+	* include/bits/ranges_algo.h (__search_n_fn::operator()): Give
+	the __value_comp lambda an explicit bool return type.
+	(__is_permutation_fn::operator()): Give the __proj_scan local
+	variable auto&& return type.  Give the __comp_scan lambda an
+	explicit bool return type.
+	(__remove_fn::operator()): Give the __pred lambda an explicit
+	bool return type.
+	(__partition_fn::operator()): Don't std::move __first twice
+	when returning an empty subrange.
+	(__min_fn::operator()): Don't std::move __comp.
+	(__max_fn::operator()): Likewise.
+	(__minmax_fn::operator()): Likewise.
+
 2021-04-27  Patrick Palka  <ppalka@redhat.com>
 
 	PR libstdc++/100290