1 # Copyright (c) 2014 The Native Client Authors. All rights reserved.
2 # Use of this source code is governed by a BSD-style license that can be
3 # found in the LICENSE file.
5 """Proof for verifying that 16bit movbe is added to the 32 bit DFA."""
10 def Validate(trie_diffs, bitness):
11 """Validate the trie_diffs adds 16 bit movbe is added in 32bit mode."""
13 # No instructions should be removed for 32/64 bit DFAs.
14 # No instructions should be added for 64 bit DFA because it already
15 # contains 16 bit movbe instructions.
16 # in 32-bit mode, 16 bit movbe should be added.
17 # This is of two forms:
22 mnemonic = proof_tools.MnemonicOp('movbe')
23 reg16 = proof_tools.GprOperands(bitness=bitness, operand_size=16)
24 mem = proof_tools.AllMemoryOperands(bitness=bitness)
26 expected_adds = (proof_tools.OpsProd(mnemonic, mem, reg16) |
27 proof_tools.OpsProd(mnemonic, reg16, mem))
31 proof_tools.AssertDiffSetEquals(trie_diffs,
32 expected_adds=expected_adds,
33 expected_removes=set())
36 if __name__ == '__main__':
37 proof_tools.RunProof(proof_tools.ParseStandardOpts(), Validate)