[arch-commits] Commit in llvm/repos/extra-x86_64 (12 files)

Evangelos Foutras foutrelis at gemini.archlinux.org
Wed Sep 8 00:57:48 UTC 2021


    Date: Wednesday, September 8, 2021 @ 00:57:47
  Author: foutrelis
Revision: 423520

archrelease: copy trunk to extra-x86_64

Added:
  llvm/repos/extra-x86_64/PKGBUILD
    (from rev 423519, llvm/trunk/PKGBUILD)
  llvm/repos/extra-x86_64/add-fno-semantic-interposition.patch
    (from rev 423519, llvm/trunk/add-fno-semantic-interposition.patch)
  llvm/repos/extra-x86_64/llvm-config.h
    (from rev 423519, llvm/trunk/llvm-config.h)
  llvm/repos/extra-x86_64/llvm-link-with-Bsymbolic-functions.patch
    (from rev 423519, llvm/trunk/llvm-link-with-Bsymbolic-functions.patch)
  llvm/repos/extra-x86_64/no-strict-aliasing-DwarfCompileUnit.patch
    (from rev 423519, llvm/trunk/no-strict-aliasing-DwarfCompileUnit.patch)
  llvm/repos/extra-x86_64/x86-twist-shuffle-mask.patch
    (from rev 423519, llvm/trunk/x86-twist-shuffle-mask.patch)
Deleted:
  llvm/repos/extra-x86_64/PKGBUILD
  llvm/repos/extra-x86_64/add-fno-semantic-interposition.patch
  llvm/repos/extra-x86_64/llvm-config.h
  llvm/repos/extra-x86_64/llvm-link-with-Bsymbolic-functions.patch
  llvm/repos/extra-x86_64/no-strict-aliasing-DwarfCompileUnit.patch
  llvm/repos/extra-x86_64/x86-twist-shuffle-mask.patch

-------------------------------------------+
 PKGBUILD                                  |  284 ++++++++++++++--------------
 add-fno-semantic-interposition.patch      |   44 ++--
 llvm-config.h                             |   18 -
 llvm-link-with-Bsymbolic-functions.patch  |  132 ++++++-------
 no-strict-aliasing-DwarfCompileUnit.patch |   26 +-
 x86-twist-shuffle-mask.patch              |  234 +++++++++++------------
 6 files changed, 369 insertions(+), 369 deletions(-)

Deleted: PKGBUILD
===================================================================
--- PKGBUILD	2021-09-08 00:57:38 UTC (rev 423519)
+++ PKGBUILD	2021-09-08 00:57:47 UTC (rev 423520)
@@ -1,142 +0,0 @@
-# Maintainer: Evangelos Foutras <evangelos at foutrelis.com>
-# Contributor: Jan "heftig" Steffens <jan.steffens at gmail.com>
-
-pkgname=('llvm' 'llvm-libs' 'llvm-ocaml')
-pkgver=12.0.1
-pkgrel=3
-_ocaml_ver=4.12.0
-arch=('x86_64')
-url="https://llvm.org/"
-license=('custom:Apache 2.0 with LLVM Exception')
-makedepends=('cmake' 'ninja' 'libffi' 'libedit' 'ncurses' 'libxml2'
-             "ocaml>=$_ocaml_ver" 'ocaml-ctypes' 'ocaml-findlib'
-             'python-setuptools' 'python-psutil' 'python-sphinx'
-             'python-recommonmark')
-options=('staticlibs')
-_source_base=https://github.com/llvm/llvm-project/releases/download/llvmorg-$pkgver
-source=($_source_base/$pkgname-$pkgver.src.tar.xz{,.sig}
-        llvm-link-with-Bsymbolic-functions.patch
-        add-fno-semantic-interposition.patch
-        x86-twist-shuffle-mask.patch
-        no-strict-aliasing-DwarfCompileUnit.patch
-        llvm-config.h)
-sha256sums=('7d9a8405f557cefc5a21bf5672af73903b64749d9bc3a50322239f56f34ffddf'
-            'SKIP'
-            '560ce1e206c19f4b86f4c583b743db0ad47a610418999350710aafd60ae50fcd'
-            'fc8c64267a5d179e9fc24fb2bc6150edef2598c83f5b2d138d14e05ce9f4e345'
-            'c51b8754f76eb3774f46d530409f6d89f5bb47d90f0d718dbfa861f716b29693'
-            'd1eff24508e35aae6c26a943dbaa3ef5acb60a145b008fd1ef9ac6f6c4faa662'
-            '597dc5968c695bbdbb0eac9e8eb5117fcd2773bc91edf5ec103ecffffab8bc48')
-validpgpkeys+=('B6C8F98282B944E3B0D5C2530FC3042E345AD05D') # Hans Wennborg <hans at chromium.org>
-validpgpkeys+=('474E22316ABF4785A88C6E8EA2C794A986419D8A') # Tom Stellard <tstellar at redhat.com>
-
-prepare() {
-  cd "$srcdir/llvm-$pkgver.src"
-  mkdir build
-
-  # https://bugs.archlinux.org/task/70697
-  patch -Np2 -i ../llvm-link-with-Bsymbolic-functions.patch
-  # https://reviews.llvm.org/D102453
-  patch -Np2 -i ../add-fno-semantic-interposition.patch
-
-  # https://bugs.llvm.org/show_bug.cgi?id=50823
-  patch -Np2 -i ../x86-twist-shuffle-mask.patch
-
-  # Work around intermittent 'clang -O -g' crashes
-  # https://bugs.llvm.org/show_bug.cgi?id=50611#c3
-  patch -Np2 -i ../no-strict-aliasing-DwarfCompileUnit.patch
-}
-
-build() {
-  cd "$srcdir/llvm-$pkgver.src/build"
-
-  cmake .. -G Ninja \
-    -DCMAKE_BUILD_TYPE=Release \
-    -DCMAKE_INSTALL_PREFIX=/usr \
-    -DLLVM_HOST_TRIPLE=$CHOST \
-    -DLLVM_BUILD_LLVM_DYLIB=ON \
-    -DLLVM_LINK_LLVM_DYLIB=ON \
-    -DLLVM_INSTALL_UTILS=ON \
-    -DLLVM_ENABLE_RTTI=ON \
-    -DLLVM_ENABLE_FFI=ON \
-    -DLLVM_BUILD_TESTS=ON \
-    -DLLVM_BUILD_DOCS=ON \
-    -DLLVM_ENABLE_SPHINX=ON \
-    -DLLVM_ENABLE_DOXYGEN=OFF \
-    -DSPHINX_WARNINGS_AS_ERRORS=OFF \
-    -DLLVM_BINUTILS_INCDIR=/usr/include
-  ninja all ocaml_doc
-}
-
-check() {
-  cd "$srcdir/llvm-$pkgver.src/build"
-  ninja check
-}
-
-package_llvm() {
-  pkgdesc="Collection of modular and reusable compiler and toolchain technologies"
-  depends=('llvm-libs' 'perl')
-
-  cd "$srcdir/llvm-$pkgver.src/build"
-
-  DESTDIR="$pkgdir" ninja install
-
-  # Include lit for running lit-based tests in other projects
-  pushd ../utils/lit
-  python3 setup.py install --root="$pkgdir" -O1
-  popd
-
-  # Remove documentation sources
-  rm -r "$pkgdir"/usr/share/doc/$pkgname/html/{_sources,.buildinfo}
-
-  # The runtime libraries go into llvm-libs
-  mv -f "$pkgdir"/usr/lib/lib{LLVM,LTO,Remarks}*.so* "$srcdir"
-  mv -f "$pkgdir"/usr/lib/LLVMgold.so "$srcdir"
-
-  # OCaml bindings go to a separate package
-  rm -rf "$srcdir"/ocaml.{lib,doc}
-  mv "$pkgdir/usr/lib/ocaml" "$srcdir/ocaml.lib"
-  mv "$pkgdir/usr/share/doc/$pkgname/ocaml-html" "$srcdir/ocaml.doc"
-
-  if [[ $CARCH == x86_64 ]]; then
-    # Needed for multilib (https://bugs.archlinux.org/task/29951)
-    # Header stub is taken from Fedora
-    mv "$pkgdir/usr/include/llvm/Config/llvm-config"{,-64}.h
-    cp "$srcdir/llvm-config.h" "$pkgdir/usr/include/llvm/Config/llvm-config.h"
-  fi
-
-  install -Dm644 ../LICENSE.TXT "$pkgdir/usr/share/licenses/$pkgname/LICENSE"
-}
-
-package_llvm-libs() {
-  pkgdesc="LLVM runtime libraries"
-  depends=('gcc-libs' 'zlib' 'libffi' 'libedit' 'ncurses' 'libxml2')
-
-  install -d "$pkgdir/usr/lib"
-  cp -P \
-    "$srcdir"/lib{LLVM,LTO,Remarks}*.so* \
-    "$srcdir"/LLVMgold.so \
-    "$pkgdir/usr/lib/"
-
-  # Symlink LLVMgold.so from /usr/lib/bfd-plugins
-  # https://bugs.archlinux.org/task/28479
-  install -d "$pkgdir/usr/lib/bfd-plugins"
-  ln -s ../LLVMgold.so "$pkgdir/usr/lib/bfd-plugins/LLVMgold.so"
-
-  install -Dm644 "$srcdir/llvm-$pkgver.src/LICENSE.TXT" \
-    "$pkgdir/usr/share/licenses/$pkgname/LICENSE"
-}
-
-package_llvm-ocaml() {
-  pkgdesc="OCaml bindings for LLVM"
-  depends=('llvm' "ocaml=$_ocaml_ver" 'ocaml-ctypes')
-
-  install -d "$pkgdir"/{usr/lib,usr/share/doc/$pkgname}
-  cp -a "$srcdir/ocaml.lib" "$pkgdir/usr/lib/ocaml"
-  cp -a "$srcdir/ocaml.doc" "$pkgdir/usr/share/doc/$pkgname/html"
-
-  install -Dm644 "$srcdir/llvm-$pkgver.src/LICENSE.TXT" \
-    "$pkgdir/usr/share/licenses/$pkgname/LICENSE"
-}
-
-# vim:set ts=2 sw=2 et:

Copied: llvm/repos/extra-x86_64/PKGBUILD (from rev 423519, llvm/trunk/PKGBUILD)
===================================================================
--- PKGBUILD	                        (rev 0)
+++ PKGBUILD	2021-09-08 00:57:47 UTC (rev 423520)
@@ -0,0 +1,142 @@
+# Maintainer: Evangelos Foutras <evangelos at foutrelis.com>
+# Contributor: Jan "heftig" Steffens <jan.steffens at gmail.com>
+
+pkgname=('llvm' 'llvm-libs' 'llvm-ocaml')
+pkgver=12.0.1
+pkgrel=4
+_ocaml_ver=4.12.0
+arch=('x86_64')
+url="https://llvm.org/"
+license=('custom:Apache 2.0 with LLVM Exception')
+makedepends=('cmake' 'ninja' 'libffi' 'libedit' 'ncurses' 'libxml2'
+             "ocaml>=$_ocaml_ver" 'ocaml-ctypes' 'ocaml-findlib'
+             'python-setuptools' 'python-psutil' 'python-sphinx'
+             'python-recommonmark')
+options=('staticlibs')
+_source_base=https://github.com/llvm/llvm-project/releases/download/llvmorg-$pkgver
+source=($_source_base/$pkgname-$pkgver.src.tar.xz{,.sig}
+        llvm-link-with-Bsymbolic-functions.patch
+        add-fno-semantic-interposition.patch
+        x86-twist-shuffle-mask.patch
+        no-strict-aliasing-DwarfCompileUnit.patch
+        llvm-config.h)
+sha256sums=('7d9a8405f557cefc5a21bf5672af73903b64749d9bc3a50322239f56f34ffddf'
+            'SKIP'
+            '560ce1e206c19f4b86f4c583b743db0ad47a610418999350710aafd60ae50fcd'
+            'fc8c64267a5d179e9fc24fb2bc6150edef2598c83f5b2d138d14e05ce9f4e345'
+            'c51b8754f76eb3774f46d530409f6d89f5bb47d90f0d718dbfa861f716b29693'
+            'd1eff24508e35aae6c26a943dbaa3ef5acb60a145b008fd1ef9ac6f6c4faa662'
+            '597dc5968c695bbdbb0eac9e8eb5117fcd2773bc91edf5ec103ecffffab8bc48')
+validpgpkeys+=('B6C8F98282B944E3B0D5C2530FC3042E345AD05D') # Hans Wennborg <hans at chromium.org>
+validpgpkeys+=('474E22316ABF4785A88C6E8EA2C794A986419D8A') # Tom Stellard <tstellar at redhat.com>
+
+prepare() {
+  cd "$srcdir/llvm-$pkgver.src"
+  mkdir build
+
+  # https://bugs.archlinux.org/task/70697
+  patch -Np2 -i ../llvm-link-with-Bsymbolic-functions.patch
+  # https://reviews.llvm.org/D102453
+  patch -Np2 -i ../add-fno-semantic-interposition.patch
+
+  # https://bugs.llvm.org/show_bug.cgi?id=50823
+  patch -Np2 -i ../x86-twist-shuffle-mask.patch
+
+  # Work around intermittent 'clang -O -g' crashes
+  # https://bugs.llvm.org/show_bug.cgi?id=50611#c3
+  patch -Np2 -i ../no-strict-aliasing-DwarfCompileUnit.patch
+}
+
+build() {
+  cd "$srcdir/llvm-$pkgver.src/build"
+
+  cmake .. -G Ninja \
+    -DCMAKE_BUILD_TYPE=Release \
+    -DCMAKE_INSTALL_PREFIX=/usr \
+    -DLLVM_HOST_TRIPLE=$CHOST \
+    -DLLVM_BUILD_LLVM_DYLIB=ON \
+    -DLLVM_LINK_LLVM_DYLIB=ON \
+    -DLLVM_INSTALL_UTILS=ON \
+    -DLLVM_ENABLE_RTTI=ON \
+    -DLLVM_ENABLE_FFI=ON \
+    -DLLVM_BUILD_TESTS=ON \
+    -DLLVM_BUILD_DOCS=ON \
+    -DLLVM_ENABLE_SPHINX=ON \
+    -DLLVM_ENABLE_DOXYGEN=OFF \
+    -DSPHINX_WARNINGS_AS_ERRORS=OFF \
+    -DLLVM_BINUTILS_INCDIR=/usr/include
+  ninja all ocaml_doc
+}
+
+check() {
+  cd "$srcdir/llvm-$pkgver.src/build"
+  ninja check
+}
+
+package_llvm() {
+  pkgdesc="Collection of modular and reusable compiler and toolchain technologies"
+  depends=('llvm-libs' 'perl')
+
+  cd "$srcdir/llvm-$pkgver.src/build"
+
+  DESTDIR="$pkgdir" ninja install
+
+  # Include lit for running lit-based tests in other projects
+  pushd ../utils/lit
+  python3 setup.py install --root="$pkgdir" -O1
+  popd
+
+  # Remove documentation sources
+  rm -r "$pkgdir"/usr/share/doc/$pkgname/html/{_sources,.buildinfo}
+
+  # The runtime libraries go into llvm-libs
+  mv -f "$pkgdir"/usr/lib/lib{LLVM,LTO,Remarks}*.so* "$srcdir"
+  mv -f "$pkgdir"/usr/lib/LLVMgold.so "$srcdir"
+
+  # OCaml bindings go to a separate package
+  rm -rf "$srcdir"/ocaml.{lib,doc}
+  mv "$pkgdir/usr/lib/ocaml" "$srcdir/ocaml.lib"
+  mv "$pkgdir/usr/share/doc/$pkgname/ocaml-html" "$srcdir/ocaml.doc"
+
+  if [[ $CARCH == x86_64 ]]; then
+    # Needed for multilib (https://bugs.archlinux.org/task/29951)
+    # Header stub is taken from Fedora
+    mv "$pkgdir/usr/include/llvm/Config/llvm-config"{,-64}.h
+    cp "$srcdir/llvm-config.h" "$pkgdir/usr/include/llvm/Config/llvm-config.h"
+  fi
+
+  install -Dm644 ../LICENSE.TXT "$pkgdir/usr/share/licenses/$pkgname/LICENSE"
+}
+
+package_llvm-libs() {
+  pkgdesc="LLVM runtime libraries"
+  depends=('gcc-libs' 'zlib' 'libffi' 'libedit' 'ncurses' 'libxml2')
+
+  install -d "$pkgdir/usr/lib"
+  cp -P \
+    "$srcdir"/lib{LLVM,LTO,Remarks}*.so* \
+    "$srcdir"/LLVMgold.so \
+    "$pkgdir/usr/lib/"
+
+  # Symlink LLVMgold.so from /usr/lib/bfd-plugins
+  # https://bugs.archlinux.org/task/28479
+  install -d "$pkgdir/usr/lib/bfd-plugins"
+  ln -s ../LLVMgold.so "$pkgdir/usr/lib/bfd-plugins/LLVMgold.so"
+
+  install -Dm644 "$srcdir/llvm-$pkgver.src/LICENSE.TXT" \
+    "$pkgdir/usr/share/licenses/$pkgname/LICENSE"
+}
+
+package_llvm-ocaml() {
+  pkgdesc="OCaml bindings for LLVM"
+  depends=('llvm' "ocaml=$_ocaml_ver" 'ocaml-ctypes')
+
+  install -d "$pkgdir"/{usr/lib,usr/share/doc/$pkgname}
+  cp -a "$srcdir/ocaml.lib" "$pkgdir/usr/lib/ocaml"
+  cp -a "$srcdir/ocaml.doc" "$pkgdir/usr/share/doc/$pkgname/html"
+
+  install -Dm644 "$srcdir/llvm-$pkgver.src/LICENSE.TXT" \
+    "$pkgdir/usr/share/licenses/$pkgname/LICENSE"
+}
+
+# vim:set ts=2 sw=2 et:

Deleted: add-fno-semantic-interposition.patch
===================================================================
--- add-fno-semantic-interposition.patch	2021-09-08 00:57:38 UTC (rev 423519)
+++ add-fno-semantic-interposition.patch	2021-09-08 00:57:47 UTC (rev 423520)
@@ -1,22 +0,0 @@
-diff --git a/llvm/cmake/modules/HandleLLVMOptions.cmake b/llvm/cmake/modules/HandleLLVMOptions.cmake
---- a/llvm/cmake/modules/HandleLLVMOptions.cmake
-+++ b/llvm/cmake/modules/HandleLLVMOptions.cmake
-@@ -305,6 +305,17 @@
-     # On Windows all code is PIC. MinGW warns if -fPIC is used.
-   else()
-     add_flag_or_print_warning("-fPIC" FPIC)
-+    # Enable interprocedural optimizations for non-inline functions which would
-+    # otherwise be disabled due to GCC -fPIC's default.
-+    #
-+    # Note: Clang allows IPO for -fPIC so this optimization is less effective.
-+    # Older Clang may support -fno-semantic-interposition but it used local
-+    # aliases to optimize global variables, which is incompatible with copy
-+    # relocations due to -fno-pic.
-+    if (CMAKE_COMPILER_IS_GNUCXX OR (CMAKE_CXX_COMPILER_ID MATCHES "Clang" AND
-+        CMAKE_CXX_COMPILER_VERSION GREATER_EQUAL 13))
-+      add_flag_if_supported("-fno-semantic-interposition" FNO_SEMANTIC_INTERPOSITION)
-+    endif()
-   endif()
-   # GCC for MIPS can miscompile LLVM due to PR37701.
-   if(CMAKE_COMPILER_IS_GNUCXX AND LLVM_NATIVE_ARCH STREQUAL "Mips" AND
-

Copied: llvm/repos/extra-x86_64/add-fno-semantic-interposition.patch (from rev 423519, llvm/trunk/add-fno-semantic-interposition.patch)
===================================================================
--- add-fno-semantic-interposition.patch	                        (rev 0)
+++ add-fno-semantic-interposition.patch	2021-09-08 00:57:47 UTC (rev 423520)
@@ -0,0 +1,22 @@
+diff --git a/llvm/cmake/modules/HandleLLVMOptions.cmake b/llvm/cmake/modules/HandleLLVMOptions.cmake
+--- a/llvm/cmake/modules/HandleLLVMOptions.cmake
++++ b/llvm/cmake/modules/HandleLLVMOptions.cmake
+@@ -305,6 +305,17 @@
+     # On Windows all code is PIC. MinGW warns if -fPIC is used.
+   else()
+     add_flag_or_print_warning("-fPIC" FPIC)
++    # Enable interprocedural optimizations for non-inline functions which would
++    # otherwise be disabled due to GCC -fPIC's default.
++    #
++    # Note: Clang allows IPO for -fPIC so this optimization is less effective.
++    # Older Clang may support -fno-semantic-interposition but it used local
++    # aliases to optimize global variables, which is incompatible with copy
++    # relocations due to -fno-pic.
++    if (CMAKE_COMPILER_IS_GNUCXX OR (CMAKE_CXX_COMPILER_ID MATCHES "Clang" AND
++        CMAKE_CXX_COMPILER_VERSION GREATER_EQUAL 13))
++      add_flag_if_supported("-fno-semantic-interposition" FNO_SEMANTIC_INTERPOSITION)
++    endif()
+   endif()
+   # GCC for MIPS can miscompile LLVM due to PR37701.
+   if(CMAKE_COMPILER_IS_GNUCXX AND LLVM_NATIVE_ARCH STREQUAL "Mips" AND
+

Deleted: llvm-config.h
===================================================================
--- llvm-config.h	2021-09-08 00:57:38 UTC (rev 423519)
+++ llvm-config.h	2021-09-08 00:57:47 UTC (rev 423520)
@@ -1,9 +0,0 @@
-#include <bits/wordsize.h>
-
-#if __WORDSIZE == 32
-#include "llvm-config-32.h"
-#elif __WORDSIZE == 64
-#include "llvm-config-64.h"
-#else
-#error "Unknown word size"
-#endif

Copied: llvm/repos/extra-x86_64/llvm-config.h (from rev 423519, llvm/trunk/llvm-config.h)
===================================================================
--- llvm-config.h	                        (rev 0)
+++ llvm-config.h	2021-09-08 00:57:47 UTC (rev 423520)
@@ -0,0 +1,9 @@
+#include <bits/wordsize.h>
+
+#if __WORDSIZE == 32
+#include "llvm-config-32.h"
+#elif __WORDSIZE == 64
+#include "llvm-config-64.h"
+#else
+#error "Unknown word size"
+#endif

Deleted: llvm-link-with-Bsymbolic-functions.patch
===================================================================
--- llvm-link-with-Bsymbolic-functions.patch	2021-09-08 00:57:38 UTC (rev 423519)
+++ llvm-link-with-Bsymbolic-functions.patch	2021-09-08 00:57:47 UTC (rev 423520)
@@ -1,66 +0,0 @@
-From 4f05f4c8e66bc76b1d94f5283494404382e3bacd Mon Sep 17 00:00:00 2001
-From: Fangrui Song <i at maskray.me>
-Date: Thu, 13 May 2021 13:44:57 -0700
-Subject: [PATCH] [CMake][ELF] Link libLLVM.so and libclang-cpp.so with
- -Bsymbolic-functions
-
-llvm-dev message: https://lists.llvm.org/pipermail/llvm-dev/2021-May/150465.html
-
-In an ELF shared object, a default visibility defined symbol is preemptible by
-default. This creates some missed optimization opportunities.
--Bsymbolic-functions is more aggressive than our current -fvisibility-inlines-hidden
-(present since 2012) as it applies to all function definitions.  It can
-
-* avoid PLT for cross-TU function calls && reduce dynamic symbol lookup
-* reduce dynamic symbol lookup for taking function addresses and optimize out GOT/TOC on x86-64/ppc64
-
-In a -DLLVM_TARGETS_TO_BUILD=X86 build, the number of JUMP_SLOT decreases from 12716 to 1628, and the number of GLOB_DAT decreases from 1918 to 1313
-The built clang with `-DLLVM_LINK_LLVM_DYLIB=on -DCLANG_LINK_CLANG_DYLIB=on` is significantly faster.
-See the Linux kernel build result https://bugs.archlinux.org/task/70697
-
-Note: the performance of -fno-semantic-interposition -Bsymbolic-functions
-libLLVM.so and libclang-cpp.so is close to a PIE binary linking against
-`libLLVM*.a` and `libclang*.a`. When the host compiler is Clang,
--Bsymbolic-functions is the major contributor.  On x86-64 (with GOTPCRELX) and
-ppc64 ELFv2, the GOT/TOC relocations can be optimized.
-
-Some implication:
-
-Interposing a subset of functions is no longer supported.
-(This is fragile on ELF and unsupported on Mach-O at all. For Mach-O we don't
-use `ld -interpose` or `-flat_namespace`)
-
-Compiling a program which takes the address of any LLVM function with
-`{gcc,clang} -fno-pic` and expects the address to equal to the address taken
-from libLLVM.so or libclang-cpp.so is unsupported. I am fairly confident that
-llvm-project shouldn't have different behaviors depending on such pointer
-equality (as we've been using -fvisibility-inlines-hidden which applies to
-inline functions for a long time), but if we accidentally do, users should be
-aware that they should not make assumption on pointer equality in `-fno-pic`
-mode.
-
-See more on https://maskray.me/blog/2021-05-09-fno-semantic-interposition
-
-Reviewed By: phosek
-
-Differential Revision: https://reviews.llvm.org/D102090
----
- llvm/tools/llvm-shlib/CMakeLists.txt | 5 +++++
- 1 file changed, 5 insertions(+)
-
-diff --git a/llvm/tools/llvm-shlib/CMakeLists.txt b/llvm/tools/llvm-shlib/CMakeLists.txt
-index b0ee19049e6f..03e1383ec8b4 100644
---- a/llvm/tools/llvm-shlib/CMakeLists.txt
-+++ b/llvm/tools/llvm-shlib/CMakeLists.txt
-@@ -50,6 +50,11 @@ if(LLVM_BUILD_LLVM_DYLIB)
-       # Solaris ld does not accept global: *; so there is no way to version *all* global symbols
-       set(LIB_NAMES -Wl,--version-script,${LLVM_LIBRARY_DIR}/tools/llvm-shlib/simple_version_script.map ${LIB_NAMES})
-     endif()
-+    # Optimize function calls for default visibility definitions to avoid PLT and
-+    # reduce dynamic relocations.
-+    # Note: for -fno-pic default, the address of a function may be different from
-+    # inside and outside libLLVM.so.
-+    target_link_options(LLVM PRIVATE LINKER:-Bsymbolic-functions)
-   elseif("${CMAKE_SYSTEM_NAME}" STREQUAL "Darwin")
-     set(LIB_NAMES -Wl,-all_load ${LIB_NAMES})
-   endif()

Copied: llvm/repos/extra-x86_64/llvm-link-with-Bsymbolic-functions.patch (from rev 423519, llvm/trunk/llvm-link-with-Bsymbolic-functions.patch)
===================================================================
--- llvm-link-with-Bsymbolic-functions.patch	                        (rev 0)
+++ llvm-link-with-Bsymbolic-functions.patch	2021-09-08 00:57:47 UTC (rev 423520)
@@ -0,0 +1,66 @@
+From 4f05f4c8e66bc76b1d94f5283494404382e3bacd Mon Sep 17 00:00:00 2001
+From: Fangrui Song <i at maskray.me>
+Date: Thu, 13 May 2021 13:44:57 -0700
+Subject: [PATCH] [CMake][ELF] Link libLLVM.so and libclang-cpp.so with
+ -Bsymbolic-functions
+
+llvm-dev message: https://lists.llvm.org/pipermail/llvm-dev/2021-May/150465.html
+
+In an ELF shared object, a default visibility defined symbol is preemptible by
+default. This creates some missed optimization opportunities.
+-Bsymbolic-functions is more aggressive than our current -fvisibility-inlines-hidden
+(present since 2012) as it applies to all function definitions.  It can
+
+* avoid PLT for cross-TU function calls && reduce dynamic symbol lookup
+* reduce dynamic symbol lookup for taking function addresses and optimize out GOT/TOC on x86-64/ppc64
+
+In a -DLLVM_TARGETS_TO_BUILD=X86 build, the number of JUMP_SLOT decreases from 12716 to 1628, and the number of GLOB_DAT decreases from 1918 to 1313
+The built clang with `-DLLVM_LINK_LLVM_DYLIB=on -DCLANG_LINK_CLANG_DYLIB=on` is significantly faster.
+See the Linux kernel build result https://bugs.archlinux.org/task/70697
+
+Note: the performance of -fno-semantic-interposition -Bsymbolic-functions
+libLLVM.so and libclang-cpp.so is close to a PIE binary linking against
+`libLLVM*.a` and `libclang*.a`. When the host compiler is Clang,
+-Bsymbolic-functions is the major contributor.  On x86-64 (with GOTPCRELX) and
+ppc64 ELFv2, the GOT/TOC relocations can be optimized.
+
+Some implication:
+
+Interposing a subset of functions is no longer supported.
+(This is fragile on ELF and unsupported on Mach-O at all. For Mach-O we don't
+use `ld -interpose` or `-flat_namespace`)
+
+Compiling a program which takes the address of any LLVM function with
+`{gcc,clang} -fno-pic` and expects the address to equal to the address taken
+from libLLVM.so or libclang-cpp.so is unsupported. I am fairly confident that
+llvm-project shouldn't have different behaviors depending on such pointer
+equality (as we've been using -fvisibility-inlines-hidden which applies to
+inline functions for a long time), but if we accidentally do, users should be
+aware that they should not make assumption on pointer equality in `-fno-pic`
+mode.
+
+See more on https://maskray.me/blog/2021-05-09-fno-semantic-interposition
+
+Reviewed By: phosek
+
+Differential Revision: https://reviews.llvm.org/D102090
+---
+ llvm/tools/llvm-shlib/CMakeLists.txt | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+diff --git a/llvm/tools/llvm-shlib/CMakeLists.txt b/llvm/tools/llvm-shlib/CMakeLists.txt
+index b0ee19049e6f..03e1383ec8b4 100644
+--- a/llvm/tools/llvm-shlib/CMakeLists.txt
++++ b/llvm/tools/llvm-shlib/CMakeLists.txt
+@@ -50,6 +50,11 @@ if(LLVM_BUILD_LLVM_DYLIB)
+       # Solaris ld does not accept global: *; so there is no way to version *all* global symbols
+       set(LIB_NAMES -Wl,--version-script,${LLVM_LIBRARY_DIR}/tools/llvm-shlib/simple_version_script.map ${LIB_NAMES})
+     endif()
++    # Optimize function calls for default visibility definitions to avoid PLT and
++    # reduce dynamic relocations.
++    # Note: for -fno-pic default, the address of a function may be different from
++    # inside and outside libLLVM.so.
++    target_link_options(LLVM PRIVATE LINKER:-Bsymbolic-functions)
+   elseif("${CMAKE_SYSTEM_NAME}" STREQUAL "Darwin")
+     set(LIB_NAMES -Wl,-all_load ${LIB_NAMES})
+   endif()

Deleted: no-strict-aliasing-DwarfCompileUnit.patch
===================================================================
--- no-strict-aliasing-DwarfCompileUnit.patch	2021-09-08 00:57:38 UTC (rev 423519)
+++ no-strict-aliasing-DwarfCompileUnit.patch	2021-09-08 00:57:47 UTC (rev 423520)
@@ -1,13 +0,0 @@
-diff --git a/llvm/lib/CodeGen/AsmPrinter/CMakeLists.txt b/llvm/lib/CodeGen/AsmPrinter/CMakeLists.txt
-index eb924282a75e..85929b54d6ce 100644
---- a/llvm/lib/CodeGen/AsmPrinter/CMakeLists.txt
-+++ b/llvm/lib/CodeGen/AsmPrinter/CMakeLists.txt
-@@ -44,3 +44,8 @@ add_llvm_component_library(LLVMAsmPrinter
-   Support
-   Target
-   )
-+
-+# https://bugs.llvm.org/show_bug.cgi?id=50611#c3
-+if (CMAKE_COMPILER_IS_GNUCXX)
-+  set_source_files_properties(DwarfCompileUnit.cpp PROPERTIES COMPILE_FLAGS -fno-strict-aliasing)
-+endif()

Copied: llvm/repos/extra-x86_64/no-strict-aliasing-DwarfCompileUnit.patch (from rev 423519, llvm/trunk/no-strict-aliasing-DwarfCompileUnit.patch)
===================================================================
--- no-strict-aliasing-DwarfCompileUnit.patch	                        (rev 0)
+++ no-strict-aliasing-DwarfCompileUnit.patch	2021-09-08 00:57:47 UTC (rev 423520)
@@ -0,0 +1,13 @@
+diff --git a/llvm/lib/CodeGen/AsmPrinter/CMakeLists.txt b/llvm/lib/CodeGen/AsmPrinter/CMakeLists.txt
+index eb924282a75e..85929b54d6ce 100644
+--- a/llvm/lib/CodeGen/AsmPrinter/CMakeLists.txt
++++ b/llvm/lib/CodeGen/AsmPrinter/CMakeLists.txt
+@@ -44,3 +44,8 @@ add_llvm_component_library(LLVMAsmPrinter
+   Support
+   Target
+   )
++
++# https://bugs.llvm.org/show_bug.cgi?id=50611#c3
++if (CMAKE_COMPILER_IS_GNUCXX)
++  set_source_files_properties(DwarfCompileUnit.cpp PROPERTIES COMPILE_FLAGS -fno-strict-aliasing)
++endif()

Deleted: x86-twist-shuffle-mask.patch
===================================================================
--- x86-twist-shuffle-mask.patch	2021-09-08 00:57:38 UTC (rev 423519)
+++ x86-twist-shuffle-mask.patch	2021-09-08 00:57:47 UTC (rev 423520)
@@ -1,117 +0,0 @@
-From 2c3bca2c3f13a0a9ef71d549a90fba23e6997d44 Mon Sep 17 00:00:00 2001
-From: "Wang, Pengfei" <pengfei.wang at intel.com>
-Date: Mon, 5 Jul 2021 21:08:49 +0800
-Subject: [PATCH] Twist shuffle mask when fold HOP(SHUFFLE(X,Y),SHUFFLE(X,Y))
- -> SHUFFLE(HOP(X,Y))
-
-This patch fixes PR50823.
-
-The shuffle mask should be twisted twice before gotten the correct one due to the difference between inner HOP and outer.
-
-Reviewed By: RKSimon
-
-Differential Revision: https://reviews.llvm.org/D104903
-
-(cherry picked from commit 9ab99f773fec7da4183495a3fdc655a797d3bea2)
----
- llvm/lib/Target/X86/X86ISelLowering.cpp |  7 ++---
- llvm/test/CodeGen/X86/haddsub-undef.ll  |  4 +--
- llvm/test/CodeGen/X86/packss.ll         |  2 +-
- llvm/test/CodeGen/X86/pr50823.ll        | 35 +++++++++++++++++++++++++
- 4 files changed, 42 insertions(+), 6 deletions(-)
- create mode 100644 llvm/test/CodeGen/X86/pr50823.ll
-
-diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp
-index 1e2407c7e7f6..d8b2f765e953 100644
---- a/llvm/lib/Target/X86/X86ISelLowering.cpp
-+++ b/llvm/lib/Target/X86/X86ISelLowering.cpp
-@@ -43194,9 +43194,10 @@ static SDValue combineHorizOpWithShuffle(SDNode *N, SelectionDAG &DAG,
-           ShuffleVectorSDNode::commuteMask(ShuffleMask1);
-         }
-         if ((Op00 == Op10) && (Op01 == Op11)) {
--          SmallVector<int, 4> ShuffleMask;
--          ShuffleMask.append(ShuffleMask0.begin(), ShuffleMask0.end());
--          ShuffleMask.append(ShuffleMask1.begin(), ShuffleMask1.end());
-+          const int Map[4] = {0, 2, 1, 3};
-+          SmallVector<int, 4> ShuffleMask(
-+            {Map[ShuffleMask0[0]], Map[ShuffleMask1[0]], Map[ShuffleMask0[1]],
-+             Map[ShuffleMask1[1]]});
-           SDLoc DL(N);
-           MVT ShufVT = VT.isFloatingPoint() ? MVT::v4f64 : MVT::v4i64;
-           SDValue Res = DAG.getNode(Opcode, DL, VT, Op00, Op01);
-diff --git a/llvm/test/CodeGen/X86/haddsub-undef.ll b/llvm/test/CodeGen/X86/haddsub-undef.ll
-index 68d058433179..e7c8b84d3bc7 100644
---- a/llvm/test/CodeGen/X86/haddsub-undef.ll
-+++ b/llvm/test/CodeGen/X86/haddsub-undef.ll
-@@ -1166,7 +1166,7 @@ define <4 x double> @PR34724_add_v4f64_u123(<4 x double> %0, <4 x double> %1) {
- ; AVX512-FAST:       # %bb.0:
- ; AVX512-FAST-NEXT:    vextractf128 $1, %ymm0, %xmm0
- ; AVX512-FAST-NEXT:    vhaddpd %ymm1, %ymm0, %ymm0
--; AVX512-FAST-NEXT:    vpermpd {{.*#+}} ymm0 = ymm0[0,2,0,3]
-+; AVX512-FAST-NEXT:    vpermpd {{.*#+}} ymm0 = ymm0[0,0,1,3]
- ; AVX512-FAST-NEXT:    retq
-   %3 = shufflevector <4 x double> %0, <4 x double> %1, <2 x i32> <i32 2, i32 4>
-   %4 = shufflevector <4 x double> %0, <4 x double> %1, <2 x i32> <i32 3, i32 5>
-@@ -1267,7 +1267,7 @@ define <4 x double> @PR34724_add_v4f64_01u3(<4 x double> %0, <4 x double> %1) {
- ; AVX512-FAST-LABEL: PR34724_add_v4f64_01u3:
- ; AVX512-FAST:       # %bb.0:
- ; AVX512-FAST-NEXT:    vhaddpd %ymm1, %ymm0, %ymm0
--; AVX512-FAST-NEXT:    vpermpd {{.*#+}} ymm0 = ymm0[0,3,1,3]
-+; AVX512-FAST-NEXT:    vpermpd {{.*#+}} ymm0 = ymm0[0,2,3,3]
- ; AVX512-FAST-NEXT:    retq
-   %3 = shufflevector <4 x double> %0, <4 x double> undef, <2 x i32> <i32 0, i32 2>
-   %4 = shufflevector <4 x double> %0, <4 x double> undef, <2 x i32> <i32 1, i32 3>
-diff --git a/llvm/test/CodeGen/X86/packss.ll b/llvm/test/CodeGen/X86/packss.ll
-index 16349ae2c7f9..ac431b7556ea 100644
---- a/llvm/test/CodeGen/X86/packss.ll
-+++ b/llvm/test/CodeGen/X86/packss.ll
-@@ -370,7 +370,7 @@ define <32 x i8> @packsswb_icmp_zero_trunc_256(<16 x i16> %a0) {
- ; AVX2-NEXT:    vpxor %xmm1, %xmm1, %xmm1
- ; AVX2-NEXT:    vpcmpeqw %ymm1, %ymm0, %ymm0
- ; AVX2-NEXT:    vpacksswb %ymm0, %ymm1, %ymm0
--; AVX2-NEXT:    vpermq {{.*#+}} ymm0 = ymm0[0,0,2,3]
-+; AVX2-NEXT:    vpermq {{.*#+}} ymm0 = ymm0[0,1,0,3]
- ; AVX2-NEXT:    ret{{[l|q]}}
-   %1 = icmp eq <16 x i16> %a0, zeroinitializer
-   %2 = sext <16 x i1> %1 to <16 x i16>
-diff --git a/llvm/test/CodeGen/X86/pr50823.ll b/llvm/test/CodeGen/X86/pr50823.ll
-new file mode 100644
-index 000000000000..c5d5296e5c66
---- /dev/null
-+++ b/llvm/test/CodeGen/X86/pr50823.ll
-@@ -0,0 +1,35 @@
-+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
-+; RUN: llc < %s -mtriple=x86_64-unknown -mcpu=core-avx2 | FileCheck %s
-+
-+%v8_uniform_FVector3 = type { float, float, float }
-+
-+declare <8 x float> @llvm.x86.avx.hadd.ps.256(<8 x float>, <8 x float>)
-+
-+define void @foo(%v8_uniform_FVector3* %Out, float* %In, <8 x i32> %__mask) {
-+; CHECK-LABEL: foo:
-+; CHECK:       # %bb.0: # %allocas
-+; CHECK-NEXT:    vmovups (%rsi), %xmm0
-+; CHECK-NEXT:    vhaddps 32(%rsi), %xmm0, %xmm0
-+; CHECK-NEXT:    vpermpd {{.*#+}} ymm0 = ymm0[0,0,1,1]
-+; CHECK-NEXT:    vhaddps %ymm0, %ymm0, %ymm0
-+; CHECK-NEXT:    vextractf128 $1, %ymm0, %xmm1
-+; CHECK-NEXT:    vaddss %xmm1, %xmm0, %xmm0
-+; CHECK-NEXT:    vmovss %xmm0, (%rdi)
-+; CHECK-NEXT:    vzeroupper
-+; CHECK-NEXT:    retq
-+allocas:
-+  %ptr_cast_for_load = bitcast float* %In to <8 x float>*
-+  %ptr_masked_load74 = load <8 x float>, <8 x float>* %ptr_cast_for_load, align 4
-+  %ptr8096 = getelementptr float, float* %In, i64 8
-+  %ptr_cast_for_load81 = bitcast float* %ptr8096 to <8 x float>*
-+  %ptr80_masked_load82 = load <8 x float>, <8 x float>* %ptr_cast_for_load81, align 4
-+  %ret_7.i.i = shufflevector <8 x float> %ptr_masked_load74, <8 x float> %ptr80_masked_load82, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 8, i32 9, i32 10, i32 11>
-+  %Out_load19 = getelementptr %v8_uniform_FVector3, %v8_uniform_FVector3* %Out, i64 0, i32 0
-+  %v1.i.i100 = tail call <8 x float> @llvm.x86.avx.hadd.ps.256(<8 x float> %ret_7.i.i, <8 x float> %ret_7.i.i)
-+  %v2.i.i101 = tail call <8 x float> @llvm.x86.avx.hadd.ps.256(<8 x float> %v1.i.i100, <8 x float> %v1.i.i100)
-+  %scalar1.i.i102 = extractelement <8 x float> %v2.i.i101, i32 0
-+  %scalar2.i.i103 = extractelement <8 x float> %v2.i.i101, i32 4
-+  %sum.i.i104 = fadd float %scalar1.i.i102, %scalar2.i.i103
-+  store float %sum.i.i104, float* %Out_load19, align 4
-+  ret void
-+}

Copied: llvm/repos/extra-x86_64/x86-twist-shuffle-mask.patch (from rev 423519, llvm/trunk/x86-twist-shuffle-mask.patch)
===================================================================
--- x86-twist-shuffle-mask.patch	                        (rev 0)
+++ x86-twist-shuffle-mask.patch	2021-09-08 00:57:47 UTC (rev 423520)
@@ -0,0 +1,117 @@
+From 2c3bca2c3f13a0a9ef71d549a90fba23e6997d44 Mon Sep 17 00:00:00 2001
+From: "Wang, Pengfei" <pengfei.wang at intel.com>
+Date: Mon, 5 Jul 2021 21:08:49 +0800
+Subject: [PATCH] Twist shuffle mask when fold HOP(SHUFFLE(X,Y),SHUFFLE(X,Y))
+ -> SHUFFLE(HOP(X,Y))
+
+This patch fixes PR50823.
+
+The shuffle mask should be twisted twice before gotten the correct one due to the difference between inner HOP and outer.
+
+Reviewed By: RKSimon
+
+Differential Revision: https://reviews.llvm.org/D104903
+
+(cherry picked from commit 9ab99f773fec7da4183495a3fdc655a797d3bea2)
+---
+ llvm/lib/Target/X86/X86ISelLowering.cpp |  7 ++---
+ llvm/test/CodeGen/X86/haddsub-undef.ll  |  4 +--
+ llvm/test/CodeGen/X86/packss.ll         |  2 +-
+ llvm/test/CodeGen/X86/pr50823.ll        | 35 +++++++++++++++++++++++++
+ 4 files changed, 42 insertions(+), 6 deletions(-)
+ create mode 100644 llvm/test/CodeGen/X86/pr50823.ll
+
+diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp
+index 1e2407c7e7f6..d8b2f765e953 100644
+--- a/llvm/lib/Target/X86/X86ISelLowering.cpp
++++ b/llvm/lib/Target/X86/X86ISelLowering.cpp
+@@ -43194,9 +43194,10 @@ static SDValue combineHorizOpWithShuffle(SDNode *N, SelectionDAG &DAG,
+           ShuffleVectorSDNode::commuteMask(ShuffleMask1);
+         }
+         if ((Op00 == Op10) && (Op01 == Op11)) {
+-          SmallVector<int, 4> ShuffleMask;
+-          ShuffleMask.append(ShuffleMask0.begin(), ShuffleMask0.end());
+-          ShuffleMask.append(ShuffleMask1.begin(), ShuffleMask1.end());
++          const int Map[4] = {0, 2, 1, 3};
++          SmallVector<int, 4> ShuffleMask(
++            {Map[ShuffleMask0[0]], Map[ShuffleMask1[0]], Map[ShuffleMask0[1]],
++             Map[ShuffleMask1[1]]});
+           SDLoc DL(N);
+           MVT ShufVT = VT.isFloatingPoint() ? MVT::v4f64 : MVT::v4i64;
+           SDValue Res = DAG.getNode(Opcode, DL, VT, Op00, Op01);
+diff --git a/llvm/test/CodeGen/X86/haddsub-undef.ll b/llvm/test/CodeGen/X86/haddsub-undef.ll
+index 68d058433179..e7c8b84d3bc7 100644
+--- a/llvm/test/CodeGen/X86/haddsub-undef.ll
++++ b/llvm/test/CodeGen/X86/haddsub-undef.ll
+@@ -1166,7 +1166,7 @@ define <4 x double> @PR34724_add_v4f64_u123(<4 x double> %0, <4 x double> %1) {
+ ; AVX512-FAST:       # %bb.0:
+ ; AVX512-FAST-NEXT:    vextractf128 $1, %ymm0, %xmm0
+ ; AVX512-FAST-NEXT:    vhaddpd %ymm1, %ymm0, %ymm0
+-; AVX512-FAST-NEXT:    vpermpd {{.*#+}} ymm0 = ymm0[0,2,0,3]
++; AVX512-FAST-NEXT:    vpermpd {{.*#+}} ymm0 = ymm0[0,0,1,3]
+ ; AVX512-FAST-NEXT:    retq
+   %3 = shufflevector <4 x double> %0, <4 x double> %1, <2 x i32> <i32 2, i32 4>
+   %4 = shufflevector <4 x double> %0, <4 x double> %1, <2 x i32> <i32 3, i32 5>
+@@ -1267,7 +1267,7 @@ define <4 x double> @PR34724_add_v4f64_01u3(<4 x double> %0, <4 x double> %1) {
+ ; AVX512-FAST-LABEL: PR34724_add_v4f64_01u3:
+ ; AVX512-FAST:       # %bb.0:
+ ; AVX512-FAST-NEXT:    vhaddpd %ymm1, %ymm0, %ymm0
+-; AVX512-FAST-NEXT:    vpermpd {{.*#+}} ymm0 = ymm0[0,3,1,3]
++; AVX512-FAST-NEXT:    vpermpd {{.*#+}} ymm0 = ymm0[0,2,3,3]
+ ; AVX512-FAST-NEXT:    retq
+   %3 = shufflevector <4 x double> %0, <4 x double> undef, <2 x i32> <i32 0, i32 2>
+   %4 = shufflevector <4 x double> %0, <4 x double> undef, <2 x i32> <i32 1, i32 3>
+diff --git a/llvm/test/CodeGen/X86/packss.ll b/llvm/test/CodeGen/X86/packss.ll
+index 16349ae2c7f9..ac431b7556ea 100644
+--- a/llvm/test/CodeGen/X86/packss.ll
++++ b/llvm/test/CodeGen/X86/packss.ll
+@@ -370,7 +370,7 @@ define <32 x i8> @packsswb_icmp_zero_trunc_256(<16 x i16> %a0) {
+ ; AVX2-NEXT:    vpxor %xmm1, %xmm1, %xmm1
+ ; AVX2-NEXT:    vpcmpeqw %ymm1, %ymm0, %ymm0
+ ; AVX2-NEXT:    vpacksswb %ymm0, %ymm1, %ymm0
+-; AVX2-NEXT:    vpermq {{.*#+}} ymm0 = ymm0[0,0,2,3]
++; AVX2-NEXT:    vpermq {{.*#+}} ymm0 = ymm0[0,1,0,3]
+ ; AVX2-NEXT:    ret{{[l|q]}}
+   %1 = icmp eq <16 x i16> %a0, zeroinitializer
+   %2 = sext <16 x i1> %1 to <16 x i16>
+diff --git a/llvm/test/CodeGen/X86/pr50823.ll b/llvm/test/CodeGen/X86/pr50823.ll
+new file mode 100644
+index 000000000000..c5d5296e5c66
+--- /dev/null
++++ b/llvm/test/CodeGen/X86/pr50823.ll
+@@ -0,0 +1,35 @@
++; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
++; RUN: llc < %s -mtriple=x86_64-unknown -mcpu=core-avx2 | FileCheck %s
++
++%v8_uniform_FVector3 = type { float, float, float }
++
++declare <8 x float> @llvm.x86.avx.hadd.ps.256(<8 x float>, <8 x float>)
++
++define void @foo(%v8_uniform_FVector3* %Out, float* %In, <8 x i32> %__mask) {
++; CHECK-LABEL: foo:
++; CHECK:       # %bb.0: # %allocas
++; CHECK-NEXT:    vmovups (%rsi), %xmm0
++; CHECK-NEXT:    vhaddps 32(%rsi), %xmm0, %xmm0
++; CHECK-NEXT:    vpermpd {{.*#+}} ymm0 = ymm0[0,0,1,1]
++; CHECK-NEXT:    vhaddps %ymm0, %ymm0, %ymm0
++; CHECK-NEXT:    vextractf128 $1, %ymm0, %xmm1
++; CHECK-NEXT:    vaddss %xmm1, %xmm0, %xmm0
++; CHECK-NEXT:    vmovss %xmm0, (%rdi)
++; CHECK-NEXT:    vzeroupper
++; CHECK-NEXT:    retq
++allocas:
++  %ptr_cast_for_load = bitcast float* %In to <8 x float>*
++  %ptr_masked_load74 = load <8 x float>, <8 x float>* %ptr_cast_for_load, align 4
++  %ptr8096 = getelementptr float, float* %In, i64 8
++  %ptr_cast_for_load81 = bitcast float* %ptr8096 to <8 x float>*
++  %ptr80_masked_load82 = load <8 x float>, <8 x float>* %ptr_cast_for_load81, align 4
++  %ret_7.i.i = shufflevector <8 x float> %ptr_masked_load74, <8 x float> %ptr80_masked_load82, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 8, i32 9, i32 10, i32 11>
++  %Out_load19 = getelementptr %v8_uniform_FVector3, %v8_uniform_FVector3* %Out, i64 0, i32 0
++  %v1.i.i100 = tail call <8 x float> @llvm.x86.avx.hadd.ps.256(<8 x float> %ret_7.i.i, <8 x float> %ret_7.i.i)
++  %v2.i.i101 = tail call <8 x float> @llvm.x86.avx.hadd.ps.256(<8 x float> %v1.i.i100, <8 x float> %v1.i.i100)
++  %scalar1.i.i102 = extractelement <8 x float> %v2.i.i101, i32 0
++  %scalar2.i.i103 = extractelement <8 x float> %v2.i.i101, i32 4
++  %sum.i.i104 = fadd float %scalar1.i.i102, %scalar2.i.i103
++  store float %sum.i.i104, float* %Out_load19, align 4
++  ret void
++}



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