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Merged
merged 1 commit into from
Jul 19, 2025

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@ldionne ldionne commented Jul 18, 2025

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@ldionne ldionne requested a review from a team as a code owner July 18, 2025 15:44
@llvmbot llvmbot added the libc++ libc++ C++ Standard Library. Not GNU libstdc++. Not libc++abi. label Jul 18, 2025
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llvmbot commented Jul 18, 2025

@llvm/pr-subscribers-libcxx

Author: Louis Dionne (ldionne)

Changes

Full diff: https://github.com/llvm/llvm-project/pull/149535.diff

2 Files Affected:

  • (modified) libcxx/docs/ReleaseNotes.rst (+2-1)
  • (added) libcxx/docs/ReleaseNotes/22.rst (+58)
diff --git a/libcxx/docs/ReleaseNotes.rst b/libcxx/docs/ReleaseNotes.rst
index 9feea5fffc26c..acfcd367de505 100644
--- a/libcxx/docs/ReleaseNotes.rst
+++ b/libcxx/docs/ReleaseNotes.rst
@@ -1,10 +1,11 @@
-.. include:: ReleaseNotes/21.rst
+.. include:: ReleaseNotes/22.rst
 
 .. Make sure to reference the non-live release notes in a toctree to avoid Sphinx errors.
 .. toctree::
     :hidden:
 
     ReleaseNotes/20
+    ReleaseNotes/21
 
 .. The release notes are in versioned files, but we make sure to keep publishing
 .. them in an unversioned ReleaseNotes.html page for external sites to reference.
diff --git a/libcxx/docs/ReleaseNotes/22.rst b/libcxx/docs/ReleaseNotes/22.rst
new file mode 100644
index 0000000000000..cade192260f6d
--- /dev/null
+++ b/libcxx/docs/ReleaseNotes/22.rst
@@ -0,0 +1,58 @@
+===========================================
+Libc++ 22.0.0 (In-Progress) Release Notes
+===========================================
+
+.. contents::
+   :local:
+   :depth: 2
+
+Written by the `Libc++ Team <https://libcxx.llvm.org>`_
+
+.. warning::
+
+   These are in-progress notes for the upcoming libc++ 22.0.0 release.
+   Release notes for previous releases can be found on
+   `the Download Page <https://releases.llvm.org/download.html>`_.
+
+Introduction
+============
+
+This document contains the release notes for the libc++ C++ Standard Library,
+part of the LLVM Compiler Infrastructure, release 22.0.0. Here we describe the
+status of libc++ in some detail, including major improvements from the previous
+release and new feature work. For the general LLVM release notes, see `the LLVM
+documentation <https://llvm.org/docs/ReleaseNotes.html>`_. All LLVM releases may
+be downloaded from the `LLVM releases web site <https://llvm.org/releases/>`_.
+
+For more information about libc++, please see the `Libc++ Web Site
+<https://libcxx.llvm.org>`_ or the `LLVM Web Site <https://llvm.org>`_.
+
+Note that if you are reading this file from a Git checkout or the
+main Libc++ web page, this document applies to the *next* release, not
+the current one. To see the release notes for a specific release, please
+see the `releases page <https://llvm.org/releases/>`_.
+
+What's New in Libc++ 22.0.0?
+==============================
+
+Implemented Papers
+------------------
+
+
+Improvements and New Features
+-----------------------------
+
+Deprecations and Removals
+-------------------------
+
+Potentially breaking changes
+----------------------------
+
+Announcements About Future Releases
+-----------------------------------
+
+ABI Affecting Changes
+---------------------
+
+Build System Changes
+--------------------

@huixie90 huixie90 merged commit 167c695 into llvm:main Jul 19, 2025
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llvm-ci commented Jul 19, 2025

LLVM Buildbot has detected a new failure on builder sanitizer-x86_64-linux-bootstrap-asan running on sanitizer-buildbot2 while building libcxx at step 2 "annotate".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/52/builds/9798

Here is the relevant piece of the build log for the reference
Step 2 (annotate) failure: 'python ../sanitizer_buildbot/sanitizers/zorg/buildbot/builders/sanitizers/buildbot_selector.py' (failure)
...
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using lld-link: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/lld-link
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using ld64.lld: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using wasm-ld: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using ld.lld: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/ld.lld
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using lld-link: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/lld-link
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using ld64.lld: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using wasm-ld: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/main.py:73: note: The test suite configuration requested an individual test timeout of 0 seconds but a timeout of 900 seconds was requested on the command line. Forcing timeout to be 900 seconds.
-- Testing: 91379 tests, 88 workers --
Testing:  0.. 10
FAIL: Clang :: Interpreter/pretty-print.cpp (13715 of 91379)
******************** TEST 'Clang :: Interpreter/pretty-print.cpp' FAILED ********************
Exit Code: 1

Command Output (stderr):
--
/home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/clang-repl "int i = 10;" 'extern "C" int printf(const char*,...);'             'auto r1 = printf("i = %d\n", i);' | /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/FileCheck --check-prefix=CHECK-DRIVER /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/clang/test/Interpreter/pretty-print.cpp # RUN: at line 1
+ /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/clang-repl 'int i = 10;' 'extern "C" int printf(const char*,...);' 'auto r1 = printf("i = %d\n", i);'
+ /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/FileCheck --check-prefix=CHECK-DRIVER /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/clang/test/Interpreter/pretty-print.cpp
cat /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/clang/test/Interpreter/pretty-print.cpp | /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/clang-repl -Xcc -std=c++11 -Xcc -fno-delayed-template-parsing | /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/FileCheck /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/clang/test/Interpreter/pretty-print.cpp # RUN: at line 5
+ cat /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/clang/test/Interpreter/pretty-print.cpp
+ /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/clang-repl -Xcc -std=c++11 -Xcc -fno-delayed-template-parsing
+ /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/FileCheck /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/clang/test/Interpreter/pretty-print.cpp
JIT session error: In graph incr_module_21-jitted-objectbuffer, section .text.startup: relocation target 0x75b80e624044 (_ZN2S3D2Ev:0x75b80e624048 + 0xfffffffffffffffc) is out of range of Delta32 fixup at address 0x75b80e624048 (<anonymous block> @ 0x71b80d40d010 + 0x18)
error: Failed to materialize symbols: { (main, { $.incr_module_21.__inits.0, s3, __orc_init_func.incr_module_21 }) }
JIT session error: Failed to materialize symbols: { (main, { s3 }) }
error: Failed to materialize symbols: { (main, { __orc_init_func.incr_module_22, $.incr_module_22.__inits.0 }) }
error: Failed to materialize symbols: { (main, { __orc_init_func.incr_module_21 }) }
/home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/clang/test/Interpreter/pretty-print.cpp:24:16: error: CHECK-NEXT: expected string not found in input
// CHECK-NEXT: (S3 &) @0x{{[0-9a-f]+}}
               ^
<stdin>:5:21: note: scanning from here
(S3) @0x71f80d640230
                    ^
<stdin>:10:5: note: possible intended match here
((lambda) &) @0x71b80bf04000
    ^

Input file: <stdin>
Check file: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/clang/test/Interpreter/pretty-print.cpp

-dump-input=help explains the following input dump.

Input was:
<<<<<<
           1: (const char[3]) "ab" 
           2: (char[2]) { '1', 'a' } 
           3: (char[3]) "1a" 
           4: (char[2][3][1]) { { { 'a' }, { 'b' }, { 'c' } }, { { 'd' }, { 'e' }, { 'f' } } } 
Step 11 (stage2/asan check) failure: stage2/asan check (failure)
...
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using lld-link: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/lld-link
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using ld64.lld: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using wasm-ld: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using ld.lld: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/ld.lld
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using lld-link: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/lld-link
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using ld64.lld: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/ld64.lld
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:520: note: using wasm-ld: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/wasm-ld
llvm-lit: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/llvm/utils/lit/lit/main.py:73: note: The test suite configuration requested an individual test timeout of 0 seconds but a timeout of 900 seconds was requested on the command line. Forcing timeout to be 900 seconds.
-- Testing: 91379 tests, 88 workers --
Testing:  0.. 10
FAIL: Clang :: Interpreter/pretty-print.cpp (13715 of 91379)
******************** TEST 'Clang :: Interpreter/pretty-print.cpp' FAILED ********************
Exit Code: 1

Command Output (stderr):
--
/home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/clang-repl "int i = 10;" 'extern "C" int printf(const char*,...);'             'auto r1 = printf("i = %d\n", i);' | /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/FileCheck --check-prefix=CHECK-DRIVER /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/clang/test/Interpreter/pretty-print.cpp # RUN: at line 1
+ /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/clang-repl 'int i = 10;' 'extern "C" int printf(const char*,...);' 'auto r1 = printf("i = %d\n", i);'
+ /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/FileCheck --check-prefix=CHECK-DRIVER /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/clang/test/Interpreter/pretty-print.cpp
cat /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/clang/test/Interpreter/pretty-print.cpp | /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/clang-repl -Xcc -std=c++11 -Xcc -fno-delayed-template-parsing | /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/FileCheck /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/clang/test/Interpreter/pretty-print.cpp # RUN: at line 5
+ cat /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/clang/test/Interpreter/pretty-print.cpp
+ /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/clang-repl -Xcc -std=c++11 -Xcc -fno-delayed-template-parsing
+ /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm_build_asan/bin/FileCheck /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/clang/test/Interpreter/pretty-print.cpp
JIT session error: In graph incr_module_21-jitted-objectbuffer, section .text.startup: relocation target 0x75b80e624044 (_ZN2S3D2Ev:0x75b80e624048 + 0xfffffffffffffffc) is out of range of Delta32 fixup at address 0x75b80e624048 (<anonymous block> @ 0x71b80d40d010 + 0x18)
error: Failed to materialize symbols: { (main, { $.incr_module_21.__inits.0, s3, __orc_init_func.incr_module_21 }) }
JIT session error: Failed to materialize symbols: { (main, { s3 }) }
error: Failed to materialize symbols: { (main, { __orc_init_func.incr_module_22, $.incr_module_22.__inits.0 }) }
error: Failed to materialize symbols: { (main, { __orc_init_func.incr_module_21 }) }
/home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/clang/test/Interpreter/pretty-print.cpp:24:16: error: CHECK-NEXT: expected string not found in input
// CHECK-NEXT: (S3 &) @0x{{[0-9a-f]+}}
               ^
<stdin>:5:21: note: scanning from here
(S3) @0x71f80d640230
                    ^
<stdin>:10:5: note: possible intended match here
((lambda) &) @0x71b80bf04000
    ^

Input file: <stdin>
Check file: /home/b/sanitizer-x86_64-linux-bootstrap-asan/build/llvm-project/clang/test/Interpreter/pretty-print.cpp

-dump-input=help explains the following input dump.

Input was:
<<<<<<
           1: (const char[3]) "ab" 
           2: (char[2]) { '1', 'a' } 
           3: (char[3]) "1a" 
           4: (char[2][3][1]) { { { 'a' }, { 'b' }, { 'c' } }, { { 'd' }, { 'e' }, { 'f' } } } 

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