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[cmake] Use a sane default for LLVM_PROFILE_DATA_DIR 

It's been pointed out that arbitrarily spraying raw profiles into a
build directory is insane. Doing this wastes a tremendous amount of
space and is also very lossy, since the test harness tends to wipe away
temporary sub-directories (which usually contain relevant profile data).

The new default is a `profiles` directory inside of the build dir.

llvm-svn: 276504
This commit is contained in:
Vedant Kumar 2016-07-23 00:38:11 +00:00
parent 0b1af85cc2
commit 401d031e1e
1 changed files with 1 additions and 1 deletions
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2
llvm/CMakeLists.txt
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@ -447,7 +447,7 @@ if (LLVM_BUILD_INSTRUMENTED OR LLVM_BUILD_INSTRUMENTED_COVERAGE)
endif()
if(NOT LLVM_PROFILE_FILE_PATTERN)
if(NOT LLVM_PROFILE_DATA_DIR)
set(LLVM_PROFILE_FILE_PATTERN "%${LLVM_PROFILE_MERGE_POOL_SIZE}m.profraw")
file(TO_NATIVE_PATH "${LLVM_BINARY_DIR}/profiles/%${LLVM_PROFILE_MERGE_POOL_SIZE}m.profraw" LLVM_PROFILE_FILE_PATTERN)
else()
file(TO_NATIVE_PATH "${LLVM_PROFILE_DATA_DIR}/%${LLVM_PROFILE_MERGE_POOL_SIZE}m.profraw" LLVM_PROFILE_FILE_PATTERN)
endif()