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| -rw-r--r-- | llvm/docs/ExtendingLLVM.rst | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/llvm/docs/ExtendingLLVM.rst b/llvm/docs/ExtendingLLVM.rst index 389dfad168b..53daf5c8427 100644 --- a/llvm/docs/ExtendingLLVM.rst +++ b/llvm/docs/ExtendingLLVM.rst @@ -47,11 +47,13 @@ function and then be turned into an instruction if warranted. #. ``llvm/include/llvm/IR/Intrinsics*.td``: - Add an entry for your intrinsic. Describe its memory access characteristics - for optimization (this controls whether it will be DCE'd, CSE'd, etc). Note - that any intrinsic using one of the ``llvm_any*_ty`` types for an argument or - return type will be deemed by ``tblgen`` as overloaded and the corresponding - suffix will be required on the intrinsic's name. + Add an entry for your intrinsic. Describe its memory access + characteristics for optimization (this controls whether it will be + DCE'd, CSE'd, etc). If any arguments need to be immediates, these + must be indicated with the ImmArg property. Note that any intrinsic + using one of the ``llvm_any*_ty`` types for an argument or return + type will be deemed by ``tblgen`` as overloaded and the + corresponding suffix will be required on the intrinsic's name. #. ``llvm/lib/Analysis/ConstantFolding.cpp``: |
