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[cmake] Allow LLVM_BUILD_INSTRUMENTED to be set to IR or Frontend

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- This deprecates LLVM_ENABLE_IR_PGO but keeps it around for now.
- Errors out when LLVM_BUILD_INSTRUMENTED and LLVM_BUILD_INSTRUMENTED_COVERAGE
  are both set.

Motivated by bogner's post-commit review of r313770.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317725 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Vedant Kumar 2017-11-08 21:26:40 +00:00
parent 82859399b0
commit bac49214a2
1 changed files with 8 additions and 3 deletions
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11
cmake/modules/HandleLLVMOptions.cmake
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@ -738,14 +738,15 @@ if(LLVM_ENABLE_EH AND NOT LLVM_ENABLE_RTTI)
message(FATAL_ERROR "Exception handling requires RTTI. You must set LLVM_ENABLE_RTTI to ON")
endif()
option(LLVM_ENABLE_IR_PGO "Build LLVM and tools with IR PGO instrumentation (experimental)" Off)
option(LLVM_ENABLE_IR_PGO "Build LLVM and tools with IR PGO instrumentation (deprecated)" Off)
mark_as_advanced(LLVM_ENABLE_IR_PGO)
option(LLVM_BUILD_INSTRUMENTED "Build LLVM and tools with PGO instrumentation" Off)
set(LLVM_BUILD_INSTRUMENTED OFF CACHE STRING "Build LLVM and tools with PGO instrumentation. May be specified as IR or Frontend")
mark_as_advanced(LLVM_BUILD_INSTRUMENTED)
string(TOUPPER "${LLVM_BUILD_INSTRUMENTED}" uppercase_LLVM_BUILD_INSTRUMENTED)
if (LLVM_BUILD_INSTRUMENTED)
if (LLVM_ENABLE_IR_PGO)
if (LLVM_ENABLE_IR_PGO OR uppercase_LLVM_BUILD_INSTRUMENTED STREQUAL "IR")
append("-fprofile-generate='${LLVM_PROFILE_DATA_DIR}'"
CMAKE_CXX_FLAGS
CMAKE_C_FLAGS
@ -768,6 +769,10 @@ append_if(LLVM_BUILD_INSTRUMENTED_COVERAGE "-fprofile-instr-generate='${LLVM_PRO
CMAKE_EXE_LINKER_FLAGS
CMAKE_SHARED_LINKER_FLAGS)
if (LLVM_BUILD_INSTRUMENTED AND LLVM_BUILD_INSTRUMENTED_COVERAGE)
message(FATAL_ERROR "LLVM_BUILD_INSTRUMENTED and LLVM_BUILD_INSTRUMENTED_COVERAGE cannot both be specified")
endif()
if(LLVM_ENABLE_LTO AND LLVM_ON_WIN32 AND NOT LINKER_IS_LLD_LINK)
message(FATAL_ERROR "When compiling for Windows, LLVM_ENABLE_LTO requires using lld as the linker (point CMAKE_LINKER at lld-link.exe)")
endif()