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CMake: Do not rebuild the world when tblgen changes but the .inc files

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it produces are not affected by the change.

llvm-svn: 59763
This commit is contained in:
Oscar Fuentes 2008-11-21 00:18:45 +00:00
parent 60693dacec
commit fa0053e297
1 changed files with 9 additions and 2 deletions
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11
cmake/modules/TableGen.cmake
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@ -4,9 +4,16 @@
macro(tablegen ofn)
file(GLOB all_tds "*.td")
add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${ofn}.tmp
COMMAND ${LLVM_TABLEGEN} ${ARGN} -I ${CMAKE_CURRENT_SOURCE_DIR}
-I ${LLVM_MAIN_SRC_DIR}/lib/Target -I ${LLVM_MAIN_INCLUDE_DIR}
${CMAKE_CURRENT_SOURCE_DIR}/${LLVM_TARGET_DEFINITIONS} -o ${ofn}.tmp
DEPENDS ${LLVM_TABLEGEN} ${all_tds}
COMMENT "Building ${ofn}.tmp..."
)
add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${ofn}
COMMAND ${LLVM_TABLEGEN} ${ARGN} -I ${CMAKE_CURRENT_SOURCE_DIR} -I ${LLVM_MAIN_SRC_DIR}/lib/Target -I ${LLVM_MAIN_INCLUDE_DIR} ${CMAKE_CURRENT_SOURCE_DIR}/${LLVM_TARGET_DEFINITIONS} -o ${ofn}
DEPENDS tblgen ${all_tds}
COMMAND ${CMAKE_COMMAND} -E copy_if_different ${ofn}.tmp ${ofn}
DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/${ofn}.tmp
COMMENT "Building ${ofn}..."
)
set(TABLEGEN_OUTPUT ${TABLEGEN_OUTPUT} ${CMAKE_CURRENT_BINARY_DIR}/${ofn})