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12 changes: 8 additions & 4 deletions llvm/cmake/modules/TableGen.cmake
Original file line number Diff line number Diff line change
Expand Up @@ -4,10 +4,6 @@
# Adds the name of the generated file to TABLEGEN_OUTPUT.
include(LLVMDistributionSupport)

# Clear out any pre-existing compile_commands file before processing. This
# allows for generating a clean compile_commands on each configure.
file(REMOVE ${CMAKE_BINARY_DIR}/tablegen_compile_commands.yml)

function(tablegen project ofn)
cmake_parse_arguments(ARG "" "" "DEPENDS;EXTRA_INCLUDES" ${ARGN})

Expand Down Expand Up @@ -250,3 +246,11 @@ macro(add_tablegen target project)
set_property(GLOBAL APPEND PROPERTY ${export_upper}_EXPORTS ${target})
endif()
endmacro()

# Make sure 'tablegen_compile_commands.yml' is only deleted once the very
# first time this file is included.
include_guard(GLOBAL)

# Clear out any pre-existing compile_commands file before processing. This
# allows for generating a clean compile_commands on each configure.
file(REMOVE ${CMAKE_BINARY_DIR}/tablegen_compile_commands.yml)
1 change: 1 addition & 0 deletions mlir/cmake/modules/AddMLIR.cmake
Original file line number Diff line number Diff line change
@@ -1,3 +1,4 @@
include(TableGen)
include(GNUInstallDirs)
include(LLVMDistributionSupport)

Expand Down
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