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-rw-r--r--llvm/cmake/modules/TableGen.cmake3
1 files changed, 3 insertions, 0 deletions
diff --git a/llvm/cmake/modules/TableGen.cmake b/llvm/cmake/modules/TableGen.cmake
index 23c8fd8a2ba..ca9357e295e 100644
--- a/llvm/cmake/modules/TableGen.cmake
+++ b/llvm/cmake/modules/TableGen.cmake
@@ -125,6 +125,9 @@ macro(add_tablegen target project)
if(LLVM_USE_HOST_TOOLS)
if( ${${project}_TABLEGEN} STREQUAL "${target}" )
+ # The NATIVE tablegen executable *must* depend on the current target one
+ # otherwise the native one won't get rebuilt when the tablgen sources
+ # change, and we end up with incorrect builds.
build_native_tool(${target} ${project}_TABLEGEN_EXE DEPENDS ${target})
set(${project}_TABLEGEN_EXE ${${project}_TABLEGEN_EXE} PARENT_SCOPE)
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