|  | +==============================================================================+ | 
|  | | How to organize the lit tests                                                | | 
|  | +==============================================================================+ | 
|  |  | 
|  | - If you write a test for matching a single DAG opcode or intrinsic, it should | 
|  | go in a file called {opcode_name,intrinsic_name}.ll (e.g. fadd.ll) | 
|  |  | 
|  | - If you write a test that matches several DAG opcodes and checks for a single | 
|  | ISA instruction, then that test should go in a file called {ISA_name}.ll (e.g. | 
|  | bfi_int.ll | 
|  |  | 
|  | - For all other tests, use your best judgement for organizing tests and naming | 
|  | the files. | 
|  |  | 
|  | +==============================================================================+ | 
|  | | Naming conventions                                                           | | 
|  | +==============================================================================+ | 
|  |  | 
|  | - Use dash '-' and not underscore '_' to separate words in file names, unless | 
|  | the file is named after a DAG opcode or ISA instruction that has an | 
|  | underscore '_' in its name. |