[gcc r12-6324] Daily bump.
GCC Administrator
gccadmin@gcc.gnu.org
Fri Jan 7 00:17:02 GMT 2022
https://gcc.gnu.org/g:11ce8d04f29417f2541d9b9bbfb54b3b26d7a90d
commit r12-6324-g11ce8d04f29417f2541d9b9bbfb54b3b26d7a90d
Author: GCC Administrator <gccadmin@gcc.gnu.org>
Date: Fri Jan 7 00:16:24 2022 +0000
Daily bump.
Diff:
---
fixincludes/ChangeLog | 6 +
gcc/ChangeLog | 90 +++++++++++++++
gcc/DATESTAMP | 2 +-
gcc/ada/ChangeLog | 293 ++++++++++++++++++++++++++++++++++++++++++++++++
gcc/analyzer/ChangeLog | 7 ++
gcc/c-family/ChangeLog | 7 ++
gcc/fortran/ChangeLog | 7 ++
gcc/testsuite/ChangeLog | 45 ++++++++
libstdc++-v3/ChangeLog | 26 +++++
9 files changed, 482 insertions(+), 1 deletion(-)
diff --git a/fixincludes/ChangeLog b/fixincludes/ChangeLog
index 016e29a457a..dfe7009e8f0 100644
--- a/fixincludes/ChangeLog
+++ b/fixincludes/ChangeLog
@@ -1,3 +1,9 @@
+2022-01-06 Olivier Hainque <hainque@adacore.com>
+
+ * inclhack.def (vxworks_next_yvals): New hack.
+ * tests/base/yvals.h: New expected test result.
+ * fixincl.x: Regenerate.
+
2022-01-04 Olivier Hainque <hainque@adacore.com>
* inclhack.def (vxworks_posix_mkdir): Refine to expose a
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index b9d9521b544..c7d12d9a489 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,93 @@
+2022-01-06 H.J. Lu <hjl.tools@gmail.com>
+
+ PR target/103925
+ * config/i386/i386.c (ix86_output_indirect_function_return):
+ Generate INT3 after indirect jmp for -mharden-sls=indirect-jmp.
+
+2022-01-06 H.J. Lu <hjl.tools@gmail.com>
+
+ PR target/102952
+ * config/i386/i386-opts.h (harden_sls): Replace
+ harden_sls_indirect_branch with harden_sls_indirect_jmp.
+ * config/i386/i386.c (ix86_output_jmp_thunk_or_indirect):
+ Likewise.
+ (ix86_output_indirect_jmp): Likewise.
+ (ix86_output_call_insn): Likewise.
+ * config/i386/i386.opt: Replace indirect-branch with
+ indirect-jmp. Replace harden_sls_indirect_branch with
+ harden_sls_indirect_jmp.
+ * doc/invoke.texi (-harden-sls=): Replace indirect-branch with
+ indirect-jmp.
+
+2022-01-06 Uroš Bizjak <ubizjak@gmail.com>
+
+ * config/i386/i386.c (ix86_output_ssemov) <MODE_DI>:
+ Add %q modifier for operands in general registers.
+ <MODE_SI>: Add %q modifier for operands in general registers.
+ * config/i386/i386.md (*movhi_internal): Change type attribute of
+ xmm-gpr interunit alternatives 9,10 to ssemov and mode attribute
+ to SImode for non-avx512fp16 targets.
+ (*movhf_internal): Ditto for xmm-gpr interunit alternatives 6,8.
+ * config/i386/mmx.md (*movv2qi_internal):
+ Ditto for xmm-gpr interunit alternatives 8,9.
+
+2022-01-06 Kito Cheng <kito.cheng@sifive.com>
+
+ * common/config/riscv/riscv-common.c (riscv_implied_info): Add
+ vector extensions.
+ (riscv_ext_version_table): Add version info for vector extensions.
+ (riscv_ext_flag_table): Add option mask for vector extensions.
+ * config/riscv/riscv-opts.h (MASK_VECTOR_EEW_32): New.
+ (MASK_VECTOR_EEW_64): New.
+ (MASK_VECTOR_EEW_FP_32): New.
+ (MASK_VECTOR_EEW_FP_64): New.
+ (MASK_ZVL32B): New.
+ (MASK_ZVL64B): New.
+ (MASK_ZVL128B): New.
+ (MASK_ZVL256B): New.
+ (MASK_ZVL512B): New.
+ (MASK_ZVL1024B): New.
+ (MASK_ZVL2048B): New.
+ (MASK_ZVL4096B): New.
+ (MASK_ZVL8192B): New.
+ (MASK_ZVL16384B): New.
+ (MASK_ZVL32768B): New.
+ (MASK_ZVL65536B): New.
+ (TARGET_ZVL32B): New.
+ (TARGET_ZVL64B): New.
+ (TARGET_ZVL128B): New.
+ (TARGET_ZVL256B): New.
+ (TARGET_ZVL512B): New.
+ (TARGET_ZVL1024B): New.
+ (TARGET_ZVL2048B): New.
+ (TARGET_ZVL4096B): New.
+ (TARGET_ZVL8192B): New.
+ (TARGET_ZVL16384B): New.
+ (TARGET_ZVL32768B): New.
+ (TARGET_ZVL65536B): New.
+ * config/riscv/riscv.opt (Mask(VECTOR)): New.
+ (riscv_vector_eew_flags): New.
+ (riscv_zvl_flags): New.
+
+2022-01-06 Kito Cheng <kito.cheng@sifive.com>
+
+ * common/config/riscv/riscv-common.c
+ (riscv_subset_list::parse_multiletter_ext): Allow ext. name has
+ digit.
+
+2022-01-06 Jakub Jelinek <jakub@redhat.com>
+
+ PR tree-optimization/103899
+ * expr.c (expand_expr_real_1): Add a workaround for bogus uninit
+ warning by moving context variable to the only spot where it is used
+ and moving gcc_assert into if body.
+
+2022-01-06 Jakub Jelinek <jakub@redhat.com>
+
+ PR rtl-optimization/103908
+ * ifcvt.c (bb_valid_for_noce_process_p): Punt on bbs ending with
+ asm goto.
+
2022-01-05 Bill Schmidt <wschmidt@linux.ibm.com>
PR target/103622
diff --git a/gcc/DATESTAMP b/gcc/DATESTAMP
index a8c88384614..2493603a2a4 100644
--- a/gcc/DATESTAMP
+++ b/gcc/DATESTAMP
@@ -1 +1 @@
-20220106
+20220107
diff --git a/gcc/ada/ChangeLog b/gcc/ada/ChangeLog
index f45cc81f41d..42a12ab615c 100644
--- a/gcc/ada/ChangeLog
+++ b/gcc/ada/ChangeLog
@@ -1,3 +1,296 @@
+2022-01-06 Bob Duff <duff@adacore.com>
+
+ * sem_res.adb (Resolve_Range): Warn on null range, unless we are
+ inside a generic unit or an instance thereof.
+ * sem_ch3.adb (Analyze_Subtype_Indication): Minor: avoid double
+ negative.
+
+2022-01-06 Piotr Trojanek <trojanek@adacore.com>
+
+ * errout.adb (Adjust_Name_Case): Remove unnecessary declare
+ block.
+
+2022-01-06 Yannick Moy <moy@adacore.com>
+
+ * libgnat/a-ngcoar.adb: Add pragma to ignore assertions in
+ instance.
+ * libgnat/a-ngrear.adb: Likewise.
+ * libgnat/s-gearop.adb: Prove implementation is free of runtime
+ errors.
+ * libgnat/s-gearop.ads: Add contracts to protect against runtime
+ errors in the generic part.
+
+2022-01-06 Piotr Trojanek <trojanek@adacore.com>
+
+ * errout.adb (Remove_Warning_Messages): Use traversal procedure
+ instead of traversal function, since we discard status of each
+ step anyway.
+
+2022-01-06 Piotr Trojanek <trojanek@adacore.com>
+
+ * exp_ch4.adb (Expand_Concatenate): There is no reason for using
+ declaring, raising and catching an exception; a simple return
+ statement is enough.
+
+2022-01-06 Piotr Trojanek <trojanek@adacore.com>
+
+ * sem_eval.adb (Eval_Arithmetic_Op): Add Loc parameter to all
+ calls to Apply_Compile_Time_Constraint_Error related to division
+ by zero.
+
+2022-01-06 Piotr Trojanek <trojanek@adacore.com>
+
+ * errout.adb (Remove_Warning_Messages): Remove unnecessary guard.
+ * exp_util.adb (Kill_Dead_Code): Likewise.
+ * par_sco.adb (Traverse_Declarations_Or_Statements): Likewise.
+ * sem_ch3.adb (Build_Derived_Record_Type): Likewise.
+ * sem_ch4.adb (Traverse_Interfaces): Likewise.
+ * sem_eval.adb (Traverse_Interfaces): Likewise.
+ * sem_util.adb (Collect_Interfaces): Likewise.
+ (Has_Non_Null_Statements, Side_Effect_Free_Statements):
+ Likewise; turn into WHILE loops, for consistency.
+
+2022-01-06 Etienne Servais <servais@adacore.com>
+
+ * sem_type.adb (Full_View_Covers): Fix typo.
+
+2022-01-06 Eric Botcazou <ebotcazou@adacore.com>
+
+ * sem_ch12.adb (Insert_Freeze_Node_For_Instance): When going to
+ the outer level, do not jump over following instantiations in
+ the list.
+
+2022-01-06 Piotr Trojanek <trojanek@adacore.com>
+
+ * err_vars.ads (Warn_On_Instance): Remove; it was a relic from
+ the previous handling of warning in instances that was removed
+ decades ago.
+
+2022-01-06 Piotr Trojanek <trojanek@adacore.com>
+
+ * errout.adb (Error_Msg_Internal): Reorder words.
+ * erroutc.ads (Is_Warning_Msg): Add closing paren.
+ * sem_util.adb (Compile_Time_Constraint_Error): Fix casing.
+
+2022-01-06 Piotr Trojanek <trojanek@adacore.com>
+
+ * sem_res.adb (Resolve_String_Literal): Simplify pointer
+ arithmetic.
+
+2022-01-06 Piotr Trojanek <trojanek@adacore.com>
+
+ * sem_res.adb (Resolve_String_Literal): Avoid unnecessary
+ conversions inside "<" and ">" bodies.
+
+2022-01-06 Piotr Trojanek <trojanek@adacore.com>
+
+ * checks.adb (Null_Exclusion_Static_Checks,
+ Selected_Range_Checks): Fix style.
+
+2022-01-06 Eric Botcazou <ebotcazou@adacore.com>
+
+ * sem_ch8.adb (Analyze_Package_Renaming): Do not check for Text_IO
+ special units when the name of the renaming is a generic instance,
+ which is the case for package instantiations in the GNAT model.
+
+2022-01-06 Steve Baird <baird@adacore.com>
+
+ * sem_util.adb (Build_Discriminant_Reference): In the unexpected
+ case where we previously would fail an assertion, we instead
+ revert to the old behavior.
+
+2022-01-06 Steve Baird <baird@adacore.com>
+
+ * sem_util.adb (Build_Actual_Subtype_Of_Component): Define a new
+ local function, Build_Discriminant_Reference, and call it in
+ each of the three cases where Make_Selected_Component was
+ previously being called to construct a discriminant reference (2
+ in Build_Actual_Array_Constraint and 1 in
+ Build_Actual_Record_Constraint). Instead of unconditionally
+ using the passed-in object name as the prefix for the new
+ selected component node, this new function checks to see if
+ perhaps a prefix of that name should be used instead.
+
+2022-01-06 Etienne Servais <servais@adacore.com>
+
+ * atree.adb: Fix typo.
+ * einfo.ads: Likewise.
+ * exp_aggr.adb: Likewise.
+ * exp_ch6.adb: Likewise.
+ * exp_ch7.adb: Likewise.
+ * exp_ch9.adb: Likewise.
+ * exp_prag.adb: Likewise.
+ * exp_unst.adb: Likewise.
+ * exp_unst.ads: Likewise.
+ * exp_util.adb: Likewise.
+ * par-endh.adb: Likewise.
+ * par.adb: Likewise.
+ * restrict.adb: Likewise.
+ * sem.ads: Likewise.
+ * sem_ch4.adb: Likewise.
+ * sem_ch5.adb: Likewise.
+ * sem_ch6.adb: Likewise.
+ * sem_ch8.adb: Likewise.
+ * sem_ch12.adb: Likewise.
+ * sem_ch13.adb: Likewise.
+ * sem_dim.adb: Likewise.
+ * sem_elab.adb: Likewise.
+ * sem_prag.adb: Likewise.
+ * sem_res.adb: Likewise.
+ * sem_util.adb: Likewise.
+ * sem_util.ads: Likewise.
+ * sinfo.ads: Likewise.
+ * sprint.adb: Likewise.
+ * urealp.adb: Likewise.
+
+2022-01-06 Justin Squirek <squirek@adacore.com>
+
+ * exp_ch3.adb (Build_Assignment): Replace current instance of
+ type with Init_Proc formal.
+ * sem_attr.adb (OK_Self_Reference): Handle recognition of
+ Current_Instance to detect certain expansion.
+ * sem_ch4.adb (Analyze_One_Call): Set actual's type when the
+ actual in question is a current instance and its corresponding
+ formal is an incomplete type.
+ * sem_util.adb (Is_Current_Instance): Add check for incomplete
+ views and add comment.
+
+2022-01-06 Bob Duff <duff@adacore.com>
+
+ * libgnat/s-rident.ads (No_Tagged_Type_Registration): New
+ restriction identifier.
+ * restrict.ads (Implementation_Restriction): Add restriction.
+ * exp_ch7.adb (Process_Declarations): Suppress
+ tagged-type-related finalization actions if the restriction is
+ active. Call RTE_Available last.
+ * exp_disp.adb (Make_DT): Likewise.
+ * exp_util.adb (Requires_Cleanup_Actions): Return False for a
+ tagged type declaration if No_Tagged_Type_Registration is
+ active.
+ * sem_attr.adb (Check_Stream_Attribute): Check restriction
+ No_Tagged_Type_Registration.
+ * libgnat/a-except.ads (Null_Occurrence): Minor: Initialize, to
+ avoid stopping at a warning in gdb.
+ * doc/gnat_rm/standard_and_implementation_defined_restrictions.rst:
+ Document new restriction.
+ * gnat_rm.texi: Regenerate.
+
+2022-01-06 Piotr Trojanek <trojanek@adacore.com>
+
+ * par-ch4.adb (P_Simple_Expression): Reuse Null_String_Id.
+ * prep.adb (Parse_Def_File): Likewise; remove Empty_String.
+
+2022-01-06 Eric Botcazou <ebotcazou@adacore.com>
+
+ * stand.ads (Any_Access): Delete.
+ (Universal_Access): New entity.
+ * einfo.ads: Remove obsolete reference to Any_Access.
+ * gen_il-gen-gen_entities.adb: Likewise.
+ * cstand.adb (Create_Standard): Do not create Any_Access and create
+ Universal_Access as a full type instead.
+ * errout.adb (Set_Msg_Insertion_Type_Reference): Do not deal with
+ Any_Access and deal with Universal_Access instead.
+ * sem_ch3.adb (Analyze_Object_Declaration): Replace Any_Access with
+ Universal_Access.
+ * sem_ch4.adb (Analyze_Null): Likewise.
+ (Find_Non_Universal_Interpretations): Likewise.
+ (Find_Equality_Types.Try_One_Interp): Likewise and avoid shadowing
+ by renaming a local variable of the same name.
+ * sem_res.adb (Make_Call_Into_Operato): Likewise.
+ (Resolve_Equality_Op): Likewise.
+ * sem_type.adb (Covers): Likewise.
+ (Specific_Type): Likewise.
+
+2022-01-06 Piotr Trojanek <trojanek@adacore.com>
+
+ * treepr.adb (Destroy): Prevent spurious check from CodePeer.
+
+2022-01-06 Yannick Moy <moy@adacore.com>
+
+ * libgnat/s-exponu.adb (Exponu): Add annotation.
+
+2022-01-06 Justin Squirek <squirek@adacore.com>
+
+ * exp_ch6.adb (Add_Simple_Call_By_Copy_Code): Add comments
+ regarding special handling of components which depend on
+ discriminants.
+ * exp_dist.adb (Build_From_Any_Function): Add Real_Rep actual
+ for calls to Has_Stream_Attribute_Definition.
+ (Build_To_Any_Function): Likewise.
+ (Build_TypeCode_Function): Likewise.
+ * freeze.adb (Freeze_Entity): Add missing comment for Test_E.
+ * libgnat/s-utf_32.adb: Remove disabled warning comments and
+ temporarily inserted pragma warnings. Remove very old (2006 and
+ 2012) comments about bootstrapping older versions.
+ * par.adb (P_Identifier): Add new parameter Force_Msg.
+ * par-ch2.adb (P_Identifier): Restructure and clean up function.
+ * par-ch3.adb (P_Defining_Identifier): Remove code duplication
+ for parsing identifiers.
+ * sem_attr.adb (Stream_Attribute_Available): Add missing
+ comments and add Real_Rep actual for calls to
+ Has_Stream_Attribute_Definition.
+ * sem_cat.adb (Has_Read_Write_Attribute): Add Real_Rep actual
+ for calls to Has_Stream_Attribute_Definition.
+ (Has_Stream_Attribute_Definition): Remove local Real_Rep and fix
+ recursive calls. Add default value for Real_Rep.
+ * sem_cat.ads (Has_Stream_Attribute_Definition): Add new out
+ parameter "Real_Rep".
+ * sem_type.adb (Add_Entry): Add condition to avoid passing
+ non-function calls to Function_Interp_Has_Abstract_Op.
+ (Function_Interp_Has_Abstract_Op): Add missing comments and
+ remove check for Is_Overloadable.
+ * sem_util.adb (Derivation_Too_Early_To_Inherit): Remove
+ duplicated code.
+
+2022-01-06 Javier Miranda <miranda@adacore.com>
+
+ * contracts.adb (Restore_Original_Selected_Component): New
+ subprogram that traverses a preanalyzed expression searching for
+ dispatching calls to functions whose original node was a
+ selected component, and replacing them with their original node.
+ This functionality is required because the preanalyis of
+ dispatching calls using the Object.Operation notation transforms
+ such calls, and we need the original condition to properly
+ inherit and extend the condition expression on tagged type
+ derivations. This functionality was previously provided by the
+ routine Install_Original_Selected_Component (as part of
+ inheriting conditions); now it is performed as part of the
+ preanalysis of the condition, thus avoiding repeatedly
+ installing and restoring such nodes.
+ (Install_Original_Selected_Component): Removed.
+ (Restore_Dispatching_Calls): Removed.
+
+2022-01-06 Piotr Trojanek <trojanek@adacore.com>
+
+ * treepr.adb (Visit_Node): Simplify repeated call to
+ Next_Entity.
+
+2022-01-06 Piotr Trojanek <trojanek@adacore.com>
+
+ * treepr.ads (Treepr, Print_Tree_List, Print_Tree_Elist): Fix
+ style in comments.
+ * treepr.adb (Serial_Numbers): Hash table instance.
+ (Hash): Hashing routine.
+ (Print_Field): Fix style.
+ (Print_Init): Adapt to simple hash table.
+ (Print_Term): Likewise.
+ (Serial_Numbers): Likewise.
+ (Set_Serial_Number): Likewise.
+
+2022-01-06 Yannick Moy <moy@adacore.com>
+
+ * libgnat/s-expmod.adb: Mark in SPARK. Add ghost code for proof.
+ * libgnat/s-expmod.ads: Mark in SPARK. Add ghost specifications.
+
+2022-01-06 Yannick Moy <moy@adacore.com>
+
+ * libgnat/s-explllu.ads: Mark in SPARK.
+ * libgnat/s-expllu.ads: Mark in SPARK.
+ * libgnat/s-exponu.adb: Add loop invariants and needed
+ assertions.
+ * libgnat/s-exponu.ads: Add functional contract.
+ * libgnat/s-expuns.ads: Mark in SPARK.
+
2022-01-05 Steve Baird <baird@adacore.com>
* exp_ch5.adb (Finish_Binding_Object_Declaration): Fix a bug
diff --git a/gcc/analyzer/ChangeLog b/gcc/analyzer/ChangeLog
index 3d69fe2bd4b..9b2b59be7f3 100644
--- a/gcc/analyzer/ChangeLog
+++ b/gcc/analyzer/ChangeLog
@@ -1,3 +1,10 @@
+2022-01-06 David Malcolm <dmalcolm@redhat.com>
+
+ PR analyzer/103546
+ * store.cc (store::eval_alias_1): Refactor handling of decl
+ regions, adding a test for may_be_aliased, rejecting those for
+ which it returns false.
+
2021-12-12 Jonathan Wakely <jwakely@redhat.com>
* engine.cc: Define INCLUDE_MEMORY instead of INCLUDE_UNIQUE_PTR.
diff --git a/gcc/c-family/ChangeLog b/gcc/c-family/ChangeLog
index 542369f86f7..112acab8316 100644
--- a/gcc/c-family/ChangeLog
+++ b/gcc/c-family/ChangeLog
@@ -1,3 +1,10 @@
+2022-01-06 Marek Polacek <polacek@redhat.com>
+
+ PR c++/103758
+ * c-pragma.c (handle_pragma_scalar_storage_order): Use %< %> in
+ diagnostic messages.
+ (handle_pragma_diagnostic): Likewise.
+
2022-01-03 Marek Polacek <polacek@redhat.com>
PR c++/103758
diff --git a/gcc/fortran/ChangeLog b/gcc/fortran/ChangeLog
index f40f8a0191c..bc7c2cb1645 100644
--- a/gcc/fortran/ChangeLog
+++ b/gcc/fortran/ChangeLog
@@ -1,3 +1,10 @@
+2022-01-06 Steve Kargl <kargl@gcc.gnu.org>
+ Sandra Loosemore <sandra@codesourcery.com>
+
+ PR fortran/103287
+ * interface.c (argument_rank_mismatch): Replace incorrect assertion
+ with return.
+
2022-01-05 Sandra Loosemore <sandra@codesourcery.com>
PR fortran/103258
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index a6d13d02383..d6dfeac6279 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,48 @@
+2022-01-06 David Malcolm <dmalcolm@redhat.com>
+
+ PR analyzer/103546
+ * gcc.dg/analyzer/aliasing-3.c: New test.
+
+2022-01-06 Steve Kargl <kargl@gcc.gnu.org>
+ Sandra Loosemore <sandra@codesourcery.com>
+
+ PR fortran/103287
+ * gfortran.dg/c-interop/pr103287-1.f90: new.
+ * gfortran.dg/c-interop/pr103287-2.f90: new.
+
+2022-01-06 H.J. Lu <hjl.tools@gmail.com>
+
+ PR target/103925
+ * gcc.target/i386/harden-sls-6.c: New test.
+
+2022-01-06 Uroš Bizjak <ubizjak@gmail.com>
+
+ * gcc.target/i386/pr102811-2.c (dg-final):
+ Update scan-assembler-times directives.
+ * gcc.target/i386/sse2-float16-2.c (dg-final):
+ Update scan-assembler directives.
+
+2022-01-06 Kito Cheng <kito.cheng@sifive.com>
+
+ * gcc.target/riscv/predef-14.c: New.
+ * gcc.target/riscv/predef-15.c: Ditto.
+ * gcc.target/riscv/predef-16.c: Ditto.
+
+2022-01-06 Patrick Palka <ppalka@redhat.com>
+
+ PR c++/69681
+ * g++.dg/cpp0x/constexpr-compare2.C: New test.
+
+2022-01-06 Jakub Jelinek <jakub@redhat.com>
+
+ PR rtl-optimization/103908
+ * gcc.target/i386/pr103908.c: New test.
+
+2022-01-06 Marek Polacek <polacek@redhat.com>
+
+ PR c++/103758
+ * gcc.dg/sso-6.c: Update dg-warning.
+
2022-01-05 Uroš Bizjak <ubizjak@gmail.com>
PR target/103861
diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 6a89059b12f..6c5cdd3f770 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,29 @@
+2022-01-06 Pavel I. Kryukov <pavel.kryukov@phystech.edu>
+ Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/103853
+ * include/bits/forward_list.tcc (forward_list::merge): Check for
+ self-merge.
+ * testsuite/23_containers/forward_list/operations/merge.cc: New test.
+
+2022-01-06 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/bits/regex.h (basic_regex, match_results): Qualify
+ name in friend declaration, to work around Clang bug.
+
+2022-01-06 Jonathan Wakely <jwakely@redhat.com>
+
+ * testsuite/ext/rope/pthread7-rope.cc: Add dg-timeout-factor.
+
+2022-01-06 Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/103911
+ * include/std/charconv (__from_chars_alpha_to_num): Return
+ char instead of unsigned char. Change invalid return value to
+ 127 instead of using numeric trait.
+ (__from_chars_alnum): Fix comment. Do not use std::isdigit.
+ Change type of variable to char.
+
2022-01-05 François Dumont <fdumont@gcc.gnu.org>
PR libstdc++/68303
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