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Additional updates for LLVM 21 #28002

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84cfaa1
add llvm21 test config
jabraham17 Oct 31, 2025
b681c5a
llvm21 portability updates
jabraham17 Oct 31, 2025
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2 changes: 1 addition & 1 deletion doc/rst/usingchapel/prereqs.rst
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Expand Up @@ -134,7 +134,7 @@ We have used the following commands to install the above prerequisites:
sudo pacman -Syu
sudo pacman -S base-devel
sudo pacman -S cmake git python
sudo pacman -S llvm20 clang20
sudo pacman -S llvm clang


* CentOS Stream 9, 10::
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23 changes: 23 additions & 0 deletions util/cron/test-linux64-llvm21.bash
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@@ -0,0 +1,23 @@
#!/usr/bin/env bash
#
# Test default configuration on examples only, on linux64, with llvm 21

UTIL_CRON_DIR=$(cd $(dirname ${BASH_SOURCE[0]}) ; pwd)
source $UTIL_CRON_DIR/common.bash

source /hpcdc/project/chapel/setup_llvm.bash 21

# Check LLVM version via llvm-config from CHPL_LLVM_CONFIG
llvm_version=$($CHPL_LLVM_CONFIG --version)
if [ "$llvm_version" != "21.1.1" ]; then
echo "Wrong LLVM version"
echo "Expected Version: 21.1.1 Actual Version: $llvm_version"
exit 2
fi

export CHPL_LAUNCHER=none

export CHPL_NIGHTLY_TEST_CONFIG_NAME="linux64-llvm21"
export CHPL_NIGHTLY_TEST_DIRS="llvm/"

$UTIL_CRON_DIR/nightly -cron -examples -blog ${nightly_args}
2 changes: 1 addition & 1 deletion util/devel/test/portability/apptainer/current/arch/image.def
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Expand Up @@ -6,7 +6,7 @@ From: archlinux:base-devel

%post
/provision-scripts/pacman-deps.sh
/provision-scripts/pacman-llvm20.sh
/provision-scripts/pacman-llvm.sh

%runscript
../../provision-scripts/run.sh "$@"
3 changes: 1 addition & 2 deletions util/devel/test/portability/provision-scripts/apt-get-and-linuxbrew.sh
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Expand Up @@ -27,8 +27,7 @@ brew install gcc #hide
# install some dependencies in homebrew
brew install cmake python gmp llvm #unsudo

# install LLVM version 20 as we don't support 21 yet
brew install llvm@20 #unsudo
brew install llvm #unsudo

# we could use Homebrew's gcc if that becomes important in the future:
# # link the homebrew-installed gcc-* to gcc
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5 changes: 1 addition & 4 deletions util/packaging/homebrew/chapel-main.rb
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Expand Up @@ -18,7 +18,7 @@ class Chapel < Formula
depends_on "gmp"
depends_on "hwloc"
depends_on "jemalloc"
depends_on "llvm@20"
depends_on "llvm"
depends_on "pkgconf"
depends_on "[email protected]"

Expand Down Expand Up @@ -174,9 +174,6 @@ def caveats
end

test do
# Hide ld warning until formula uses LLVM 21+ or if we apply backports to `llvm@20`
ENV["MACOSX_DEPLOYMENT_TARGET"] = MacOS.version.to_s if OS.mac? && MacOS.version >= :tahoe

ENV["CHPL_HOME"] = libexec
ENV["CHPL_INCLUDE_PATH"] = HOMEBREW_PREFIX/"include"
ENV["CHPL_LIB_PATH"] = HOMEBREW_PREFIX/"lib"
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