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-rw-r--r--cmake/modules/TableGen.cmake11
1 files changed, 9 insertions, 2 deletions
diff --git a/cmake/modules/TableGen.cmake b/cmake/modules/TableGen.cmake
index 7836c4e..bea369f 100644
--- a/cmake/modules/TableGen.cmake
+++ b/cmake/modules/TableGen.cmake
@@ -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})