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author | Chris Bieneman <beanz@apple.com> | 2016-08-16 22:16:29 +0000 |
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committer | Chris Bieneman <beanz@apple.com> | 2016-08-16 22:16:29 +0000 |
commit | eb1960e75654998eb9ade318fbcabaae4fa0064d (patch) | |
tree | e294a58327f37945877967bff0dd2b65f73c21f8 /cmake/caches/PGO.cmake | |
parent | 7200cc30735502829d6dcec5fbc25e8d1f6c5f00 (diff) |
[CMake] Workflow improvements to PGO generation
This patch adds a few new convenience options used by the PGO CMake cache to setup options on bootstrap stages. The new options are:
PGO_INSTRUMENT_LTO - Builds the instrumented and final builds with LTO
PGO_BUILD_CONFIGURATION - Accepts a CMake cache script that can be used for complex configuration of the stage2-instrumented and stage2 builds.
The patch also includes a fix for bootstrap dependencies so that the instrumented LTO tools don't get used when building the final stage, and it adds distribution targets to the passthrough.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@278862 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'cmake/caches/PGO.cmake')
-rw-r--r-- | cmake/caches/PGO.cmake | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/cmake/caches/PGO.cmake b/cmake/caches/PGO.cmake index dc11173fae..bca9ba0dea 100644 --- a/cmake/caches/PGO.cmake +++ b/cmake/caches/PGO.cmake @@ -7,11 +7,23 @@ set(BOOTSTRAP_LLVM_BUILD_INSTRUMENTED ON CACHE BOOL "") set(CLANG_BOOTSTRAP_TARGETS generate-profdata stage2 + stage2-distribution + stage2-install-distribution stage2-check-all stage2-check-llvm stage2-check-clang stage2-test-suite CACHE STRING "") +if(PGO_INSTRUMENT_LTO) + set(BOOTSTRAP_LLVM_ENABLE_LTO ON CACHE BOOL "") + set(BOOTSTRAP_BOOTSTRAP_LLVM_ENABLE_LTO ON CACHE BOOL "") +endif() + +if(PGO_BUILD_CONFIGURATION) + set(EXTRA_ARGS -DPGO_BUILD_CONFIGURATION=${PGO_BUILD_CONFIGURATION}) +endif() + set(CLANG_BOOTSTRAP_CMAKE_ARGS + ${EXTRA_ARGS} -C ${CMAKE_CURRENT_LIST_DIR}/PGO-stage2-instrumented.cmake CACHE STRING "") |