libcxxabi tests: disable large tests (#356)

update patches to versions in upstream review

CMakeLists.txt

@@ -259,7 +259,8 @@ set(
     ${CMAKE_CURRENT_SOURCE_DIR}/patches/llvm-project/0001-Fix-llvm-test-CodeGen-ARM-build-attributes.ll-test.patch
     ${CMAKE_CURRENT_SOURCE_DIR}/patches/llvm-project/0002-Add-check-for-building-with-picolibc.patch
     ${CMAKE_CURRENT_SOURCE_DIR}/patches/llvm-project/0003-Run-picolibc-tests-with-qemu.patch
-    ${CMAKE_CURRENT_SOURCE_DIR}/patches/llvm-project/0004-xfail-two-remaining-libcxx-with-picolibc-tests.patch)
+    ${CMAKE_CURRENT_SOURCE_DIR}/patches/llvm-project/0004-xfail-two-remaining-libcxx-with-picolibc-tests.patch
+    ${CMAKE_CURRENT_SOURCE_DIR}/patches/llvm-project/0005-disable-large-tests.patch)
 FetchContent_Declare(llvmproject
     GIT_REPOSITORY https://github.com/llvm/llvm-project.git
     GIT_TAG "${llvmproject_TAG}"

patches/llvm-project/0001-Fix-llvm-test-CodeGen-ARM-build-attributes.ll-test.patch

@@ -1,7 +1,7 @@
-From ec470a25055bec9d33cffe3183a6f70c4cedf69c Mon Sep 17 00:00:00 2001
+From 9efc154d6fa0a7b079cc2cdf488e58a2d3a3065b Mon Sep 17 00:00:00 2001
 From: =?UTF-8?q?Dominik=20W=C3=B3jt?= <[email protected]>
 Date: Tue, 10 Oct 2023 15:43:59 +0200
-Subject: [PATCH 1/4] Fix llvm/test/CodeGen/ARM/build-attributes.ll test.
+Subject: [PATCH 1/5] Fix llvm/test/CodeGen/ARM/build-attributes.ll test.
 
 The test llvm/test/CodeGen/ARM/build-attributes.ll
 needs updating to incorporate the change

patches/llvm-project/0002-Add-check-for-building-with-picolibc.patch

@@ -1,7 +1,7 @@
-From 47f113bfa3cfa5c6b8c37636cedb4cf4d12d65aa Mon Sep 17 00:00:00 2001
+From acb9eb72087a5ca9e408c8642c316f663f91cd9f Mon Sep 17 00:00:00 2001
 From: Michael Platings <[email protected]>
 Date: Fri, 29 Sep 2023 09:35:52 +0100
-Subject: [PATCH 2/4] Add check for building with picolibc
+Subject: [PATCH 2/5] Add check for building with picolibc
 
 This is intended to identify changes that would fail to build on
 embedded platforms e.g. D152382
@@ -31,7 +31,6 @@ Differential Revision: https://reviews.llvm.org/D154246
  .../atomic_fetch_xor_explicit.pass.cpp        |   2 +
  .../ctor.pass.cpp                             |   2 +
  .../depr.c.headers/fenv_h.compile.pass.cpp    |   3 +
- .../depr.c.headers/stdio_h.compile.pass.cpp   |   3 +
  .../depr.c.headers/uchar_h.compile.pass.cpp   |   3 +
  .../reference_assignment.pass.cpp             |   3 +
  .../narrow.stream.objects/cerr.sh.cpp         |   2 +
@@ -50,14 +49,14 @@ Differential Revision: https://reviews.llvm.org/D154246
  .../time.clock.system/to_time_t.pass.cpp      |   3 +
  .../op_-duration.pass.cpp                     |   3 +
  libcxx/utils/ci/BOT_OWNERS.txt                |   2 +-
- libcxx/utils/ci/build-picolibc.sh             | 109 ++++++++++++++++++
+ libcxx/utils/ci/build-picolibc.sh             | 111 ++++++++++++++++++
  libcxx/utils/ci/buildkite-pipeline.yml        |   5 +
  libcxx/utils/ci/run-buildbot                  |  35 ++++++
  libcxx/utils/libcxx/test/features.py          |  29 ++++-
  .../test/configs/armv7m-libc++abi.cfg.in      |  33 ++++++
  libcxxabi/test/test_demangle.pass.cpp         |   3 +
  .../test/configs/armv7m-libunwind.cfg.in      |  33 ++++++
- 47 files changed, 430 insertions(+), 14 deletions(-)
+ 46 files changed, 429 insertions(+), 14 deletions(-)
  create mode 100644 libcxx/cmake/caches/Armv7M-picolibc.cmake
  create mode 100644 libcxx/test/configs/armv7m-libc++.cfg.in
  create mode 100755 libcxx/utils/ci/build-picolibc.sh
@@ -445,20 +444,6 @@ index fda5e186c036..dcc97573d607 100644
  // <fenv.h>
 
  #include <fenv.h>
-diff --git a/libcxx/test/std/depr/depr.c.headers/stdio_h.compile.pass.cpp b/libcxx/test/std/depr/depr.c.headers/stdio_h.compile.pass.cpp
-index 55731c857ecf..af97ef2fddfb 100644
---- a/libcxx/test/std/depr/depr.c.headers/stdio_h.compile.pass.cpp
-+++ b/libcxx/test/std/depr/depr.c.headers/stdio_h.compile.pass.cpp
-@@ -6,6 +6,9 @@
- //
- //===----------------------------------------------------------------------===//
-
-+// stderr et al are not macros in picolibc's tinystdio.
-+// XFAIL: LIBCXX-PICOLIBC-FIXME
-+
- // test <stdio.h>
-
- #include <stdio.h>
 diff --git a/libcxx/test/std/depr/depr.c.headers/uchar_h.compile.pass.cpp b/libcxx/test/std/depr/depr.c.headers/uchar_h.compile.pass.cpp
 index 2b6455466681..a1560c8ee585 100644
 --- a/libcxx/test/std/depr/depr.c.headers/uchar_h.compile.pass.cpp
@@ -707,10 +692,10 @@ index 721b19e52d8b..de575c591383 100644
  E: [email protected]
 diff --git a/libcxx/utils/ci/build-picolibc.sh b/libcxx/utils/ci/build-picolibc.sh
 new file mode 100755
-index 000000000000..acdcabe96e96
+index 000000000000..078c2bdf5ebc
 --- /dev/null
 +++ b/libcxx/utils/ci/build-picolibc.sh
-@@ -0,0 +1,109 @@
+@@ -0,0 +1,111 @@
 +#!/usr/bin/env bash
 +#===----------------------------------------------------------------------===##
 +#
@@ -783,9 +768,11 @@ index 000000000000..acdcabe96e96
 +mkdir -p "${picolibc_source_dir}"
 +mkdir -p "${picolibc_build_dir}"
 +# Download the version of picolibc that was the latest at the time this script was written.
-+# The picolibc linker script was changed after version 1.8.2 to work with ld.lld so a
-+# more recent version is required, which at the time of writing is not yet released.
-+picolibc_commit="8dd225aa1469c03805617106020d494912c6d265"
++# Following changes are required and were introduced after version 1.8.5:
++# - updated semihost arguments handling,
++# - added missing macros in stdio.h
++# Version following 1.8.5, was not released by the time of writing.
++picolibc_commit="4b9b8ef01d18cf0563348ad4af4ae89a7277e7ca"
 +curl -L "https://github.com/picolibc/picolibc/archive/${picolibc_commit}.zip" --output "${picolibc_source_dir}/picolibc.zip"
 +unzip -q "${picolibc_source_dir}/picolibc.zip" -d "${picolibc_source_dir}"
 +mv "${picolibc_source_dir}/picolibc-${picolibc_commit}"/* "${picolibc_source_dir}"

patches/llvm-project/0003-Run-picolibc-tests-with-qemu.patch

@@ -1,7 +1,7 @@
-From 07b092ce872453a787435f08bf3dd01bd54320d4 Mon Sep 17 00:00:00 2001
+From e007ef8e327bc72e379d8d2d529e492e3d018747 Mon Sep 17 00:00:00 2001
 From: Michael Platings <[email protected]>
 Date: Fri, 29 Sep 2023 12:23:37 +0100
-Subject: [PATCH 3/4] Run picolibc tests with qemu
+Subject: [PATCH 3/5] Run picolibc tests with qemu
 
 Differential Revision: https://reviews.llvm.org/D155521
 ---
@@ -270,7 +270,7 @@ index 0852483a8b39..4ba17a48988b 100644
 
  // file_clock
 diff --git a/libcxxabi/test/configs/armv7m-libc++abi.cfg.in b/libcxxabi/test/configs/armv7m-libc++abi.cfg.in
-index 876f43e44bbb..91821cfd95c7 100644
+index 876f43e44bbb..c244e44bbe71 100644
 --- a/libcxxabi/test/configs/armv7m-libc++abi.cfg.in
 +++ b/libcxxabi/test/configs/armv7m-libc++abi.cfg.in
 @@ -17,10 +17,16 @@ config.substitutions.append(('%{link_flags}',
@@ -279,7 +279,7 @@ index 876f43e44bbb..91821cfd95c7 100644
  ))
 +
 +config.executor = (
-+    '@LIBCXX_SOURCE_DIR@/utils/qemu_baremetal.py'
++    '@LIBCXXABI_LIBCXX_PATH@/utils/qemu_baremetal.py'
 +    ' --qemu @QEMU_SYSTEM_ARM@'
 +    ' --machine mps2-an385'
 +    ' --cpu cortex-m3')
@@ -293,7 +293,7 @@ index 876f43e44bbb..91821cfd95c7 100644
  import os, site
  site.addsitedir(os.path.join('@LIBCXXABI_LIBCXX_PATH@', 'utils'))
 diff --git a/libunwind/test/configs/armv7m-libunwind.cfg.in b/libunwind/test/configs/armv7m-libunwind.cfg.in
-index 6ddb6138c402..2c4467cdadc8 100644
+index 6ddb6138c402..48c02add6e49 100644
 --- a/libunwind/test/configs/armv7m-libunwind.cfg.in
 +++ b/libunwind/test/configs/armv7m-libunwind.cfg.in
 @@ -17,10 +17,16 @@ config.substitutions.append(('%{link_flags}',
@@ -302,7 +302,7 @@ index 6ddb6138c402..2c4467cdadc8 100644
  ))
 +
 +config.executor = (
-+    '@LIBCXX_SOURCE_DIR@/utils/qemu_baremetal.py'
++    '@LIBUNWIND_LIBCXX_PATH@/utils/qemu_baremetal.py'
 +    ' --qemu @QEMU_SYSTEM_ARM@'
 +    ' --machine mps2-an385'
 +    ' --cpu cortex-m3')

patches/llvm-project/0004-xfail-two-remaining-libcxx-with-picolibc-tests.patch

@@ -1,12 +1,14 @@
-From e7c019953cb3680b69872eaae5a0de930f091ff8 Mon Sep 17 00:00:00 2001
+From cf8e60c8ef9adefe24587ddcfad499d758126c11 Mon Sep 17 00:00:00 2001
 From: =?UTF-8?q?Dominik=20W=C3=B3jt?= <[email protected]>
 Date: Mon, 16 Oct 2023 11:35:48 +0200
-Subject: [PATCH 4/4] xfail two remaining libcxx with picolibc tests
+Subject: [PATCH 4/5] xfail two remaining libcxx with picolibc tests
 
 ---
  .../cmp/cmp.alg/strong_order_long_double.verify.cpp          | 5 +++++
  .../language.support/support.start.term/quick_exit.pass.cpp  | 3 +++
- 2 files changed, 8 insertions(+)
+ libcxx/test/std/re/re.alg/re.alg.match/exponential.pass.cpp  | 3 +++
+ libcxx/test/std/re/re.alg/re.alg.search/exponential.pass.cpp | 3 +++
+ 4 files changed, 14 insertions(+)
 
 diff --git a/libcxx/test/std/language.support/cmp/cmp.alg/strong_order_long_double.verify.cpp b/libcxx/test/std/language.support/cmp/cmp.alg/strong_order_long_double.verify.cpp
 index fd16afeefb03..004ebc0a6bcd 100644

patches/llvm-project/0005-disable-large-tests.patch

@@ -0,0 +1,69 @@
+From 8789ad306129822ae49eb69bd05731fe366ee372 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Dominik=20W=C3=B3jt?= <[email protected]>
+Date: Wed, 15 Nov 2023 12:18:35 +0100
+Subject: [PATCH 5/5] disable large tests
+
+---
+ libcxx/test/configs/armv7m-libc++.cfg.in       | 2 ++
+ libcxxabi/test/configs/armv7m-libc++abi.cfg.in | 3 +++
+ libcxxabi/test/test_demangle.pass.cpp          | 2 +-
+ libunwind/test/configs/armv7m-libunwind.cfg.in | 3 +++
+ 4 files changed, 9 insertions(+), 1 deletion(-)
+
+diff --git a/libcxx/test/configs/armv7m-libc++.cfg.in b/libcxx/test/configs/armv7m-libc++.cfg.in
+index 9d8d567d7766..93c14c726bf7 100644
+--- a/libcxx/test/configs/armv7m-libc++.cfg.in
++++ b/libcxx/test/configs/armv7m-libc++.cfg.in
+@@ -39,6 +39,8 @@ config.substitutions.append(('%{exec}',
+
+ # Long tests are prohibitively slow when run via emulation.
+ config.long_tests = False
++# The emulated target has limited memory.
++config.large_tests = False
+
+ import os, site
+ site.addsitedir(os.path.join('@LIBCXX_SOURCE_DIR@', 'utils'))
+diff --git a/libcxxabi/test/configs/armv7m-libc++abi.cfg.in b/libcxxabi/test/configs/armv7m-libc++abi.cfg.in
+index c244e44bbe71..dc6a48ce9b55 100644
+--- a/libcxxabi/test/configs/armv7m-libc++abi.cfg.in
++++ b/libcxxabi/test/configs/armv7m-libc++abi.cfg.in
+@@ -28,6 +28,9 @@ config.substitutions.append(('%{exec}',
+     ' --execdir %T'
+ ))
+
++# The emulated target has limited memory.
++config.large_tests = False
++
+ import os, site
+ site.addsitedir(os.path.join('@LIBCXXABI_LIBCXX_PATH@', 'utils'))
+ import libcxx.test.params, libcxx.test.config
+diff --git a/libcxxabi/test/test_demangle.pass.cpp b/libcxxabi/test/test_demangle.pass.cpp
+index 0bc7d0db3db2..735f2b3d18bc 100644
+--- a/libcxxabi/test/test_demangle.pass.cpp
++++ b/libcxxabi/test/test_demangle.pass.cpp
+@@ -10,7 +10,7 @@
+ // XFAIL: stdlib=apple-libc++ && target={{.+}}-apple-macosx10.{{9|10|11|12|13|14|15}}
+
+ // This test is too big for most embedded devices.
+-// XFAIL: LIBCXX-PICOLIBC-FIXME
++// REQUIRES: large_tests
+
+ // https://llvm.org/PR51407 was not fixed in some previously-released
+ // demanglers, which causes them to run into the infinite loop.
+diff --git a/libunwind/test/configs/armv7m-libunwind.cfg.in b/libunwind/test/configs/armv7m-libunwind.cfg.in
+index 48c02add6e49..5d66de215f83 100644
+--- a/libunwind/test/configs/armv7m-libunwind.cfg.in
++++ b/libunwind/test/configs/armv7m-libunwind.cfg.in
+@@ -28,6 +28,9 @@ config.substitutions.append(('%{exec}',
+     ' --execdir %T'
+ ))
+
++# The emulated target has limited memory.
++config.large_tests = False
++
+ import os, site
+ site.addsitedir(os.path.join('@LIBUNWIND_LIBCXX_PATH@', 'utils'))
+ import libcxx.test.params, libcxx.test.config
+-- 
+2.34.1
+