1""" 2Script to disassembles a bitcode file and run FileCheck on the output with the 3provided arguments. The first 2 arguments are the paths to the llvm-dis and 4FileCheck binaries, followed by arguments to be passed to FileCheck. The last 5argument is the bitcode file to disassemble. 6 7Usage: 8 python llvm-dis-and-filecheck.py 9 <path to llvm-dis> <path to FileCheck> 10 [arguments passed to FileCheck] <path to bitcode file> 11 12""" 13 14 15import sys 16import os 17import subprocess 18 19llvm_dis = sys.argv[1] 20filecheck = sys.argv[2] 21filecheck_args = [ 22 filecheck, 23] 24filecheck_args.extend(sys.argv[3:-1]) 25bitcode_file = sys.argv[-1] 26ir_file = bitcode_file + ".ll" 27 28disassemble = subprocess.Popen([llvm_dis, "--preserve-ll-uselistorder", "-o", ir_file, bitcode_file]) 29if os.path.exists(ir_file + ".0"): 30 ir_file = ir_file + ".0" 31 32disassemble.communicate() 33 34if disassemble.returncode != 0: 35 print("stderr:") 36 print(disassemble.stderr) 37 print("stdout:") 38 print(disassemble.stdout) 39 sys.exit(1) 40 41check = None 42with open(ir_file, "r") as ir: 43 check = subprocess.Popen(filecheck_args, stdin=ir, stdout=sys.stdout) 44check.communicate() 45sys.exit(check.returncode) 46