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Teach tablegen() macro to check needed variables

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This macro depends on several variables to be set in the calling
context.  Check them and report an error if they are not set.
Without this, custom commands may be silently specified that
will fail at build time.

Patch by Brad King.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@201229 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
NAKAMURA Takumi 2014-02-12 11:50:11 +00:00
parent eee40f92a9
commit dd5ff1bf41
1 changed files with 11 additions and 0 deletions
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11
cmake/modules/TableGen.cmake
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@ -3,6 +3,17 @@
# Adds the name of the generated file to TABLEGEN_OUTPUT.
function(tablegen project ofn)
# Validate calling context.
foreach(v
${project}_TABLEGEN_EXE
LLVM_MAIN_SRC_DIR
LLVM_MAIN_INCLUDE_DIR
)
if(NOT ${v})
message(FATAL_ERROR "${v} not set")
endif()
endforeach()
file(GLOB local_tds "*.td")
file(GLOB_RECURSE global_tds "${LLVM_MAIN_INCLUDE_DIR}/llvm/*.td")