def main():
if len(argv) >= 2 and argv[1] == '-h':
print_usage()
elif len(argv) >= 3 and argv[1] == '-x':
if not path.exists(argv[2]):
raise IOError('Invalid file name.')
scanner = ILOCScanner()
operations, src_regs = scanner.scan_file(argv[2])
allocator = RegisterAllocator(operations, src_regs)
allocator.rename_regs()
allocator.print_vrs()
elif len(argv) >= 3 and argv[1].isdigit():
if not path.exists(argv[2]):
raise IOError('Invalid file name.')
scanner = ILOCScanner()
operations, src_regs = scanner.scan_file(argv[2])
allocator = RegisterAllocator(operations, src_regs)
allocator.rename_regs()
allocator.alloc_regs(int(argv[1]))
allocator.print_prs()
else:
raise ValueError('Illegal arguments.')
from ILOCScanner import ILOCScanner
from RegisterAllocator import RegisterAllocator
scanner = ILOCScanner()
operations, src_regs = scanner.scan_file("report/report5.i")
# print(operations.size)
allocator = RegisterAllocator(operations, src_regs)
allocator.rename_regs()
# allocator.print_vrs()
allocator.alloc_regs(5)
allocator.print_prs()
