[libcxx-commits] [libcxx] 19ef02e - [libc++][ci] Use ccache in the jobs that build Clang

[Louis Dionne via libcxx-commits]

Author: Louis Dionne
Date: 2023-05-30T13:10:03-07:00
New Revision: 19ef02e3f4f82a439a94479589a9f1244d0b1b06

URL: https://github.com/llvm/llvm-project/commit/19ef02e3f4f82a439a94479589a9f1244d0b1b06
DIFF: https://github.com/llvm/llvm-project/commit/19ef02e3f4f82a439a94479589a9f1244d0b1b06.diff

LOG: [libc++][ci] Use ccache in the jobs that build Clang

This is an attempt to reduce the time taken by the Bootstrapping
build job and the Clang CI job that builds the compiler from scratch.

Differential Revision: https://reviews.llvm.org/D150908

Added: 
    

Modified: 
    libcxx/utils/ci/buildkite-pipeline-clang.yml
    libcxx/utils/ci/run-buildbot

Removed: 
    


################################################################################
diff  --git a/libcxx/utils/ci/buildkite-pipeline-clang.yml b/libcxx/utils/ci/buildkite-pipeline-clang.yml
index 40bb80aa8d30..323f4cf80b89 100644
--- a/libcxx/utils/ci/buildkite-pipeline-clang.yml
+++ b/libcxx/utils/ci/buildkite-pipeline-clang.yml
@@ -23,8 +23,9 @@ steps:
       # We use Release here to avoid including debug information. Otherwise, the clang binary is very large, which
       # is problematic because we need to upload the artifacts for other jobs to use. This may seem like nothing,
       # but with the number of jobs we run daily, this can result in thousands of GB of network I/O.
-      - "cmake -S llvm -B build -G Ninja -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=install -DLLVM_ENABLE_PROJECTS=\"clang;compiler-rt\""
+      - "cmake -S llvm -B build -G Ninja -DCMAKE_CXX_COMPILER_LAUNCHER="ccache" -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=install -DLLVM_ENABLE_PROJECTS=\"clang;compiler-rt\""
       - "ninja -C build install-clang install-clang-resource-headers"
+      - "ccache -s"
       - "tar -cJvf install.tar.xz install/"
       - "buildkite-agent artifact upload --debug install.tar.xz"
     env:

diff  --git a/libcxx/utils/ci/run-buildbot b/libcxx/utils/ci/run-buildbot
index 420dfde5645a..650201251f8d 100755
--- a/libcxx/utils/ci/run-buildbot
+++ b/libcxx/utils/ci/run-buildbot
@@ -340,6 +340,7 @@ bootstrapping-build)
           -S "${MONOREPO_ROOT}/llvm" \
           -B "${BUILD_DIR}" \
           -GNinja -DCMAKE_MAKE_PROGRAM="${NINJA}" \
+          -DCMAKE_CXX_COMPILER_LAUNCHER="ccache" \
           -DCMAKE_BUILD_TYPE=RelWithDebInfo \
           -DCMAKE_INSTALL_PREFIX="${INSTALL_DIR}" \
           -DLLVM_ENABLE_PROJECTS="clang" \