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Add Intel legalization for division and multiplication.

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These operations need custom legalization in order to use Intel's div
and idiv instructions.
This commit is contained in:
Jakob Stoklund Olesen
2017-07-28 08:46:45 -07:00
parent 6609d7baf4
commit be8331d0a0
7 changed files with 134 additions and 16 deletions
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14
lib/cretonne/meta/isa/intel/instructions.py
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@@ -6,17 +6,19 @@ target ISA.
"""
from cdsl.operands import Operand
from cdsl.typevar import TypeVar
from cdsl.instructions import Instruction, InstructionGroup
from base.instructions import iB
GROUP = InstructionGroup("x86", "Intel-specific instruction set")
nlo = Operand('nlo', iB, doc='Low part of numerator')
nhi = Operand('nhi', iB, doc='High part of numerator')
d = Operand('d', iB, doc='Denominator')
q = Operand('q', iB, doc='Quotient')
r = Operand('r', iB, doc='Remainder')
iWord = TypeVar('iWord', 'A scalar integer machine word', ints=(32, 64))
nlo = Operand('nlo', iWord, doc='Low part of numerator')
nhi = Operand('nhi', iWord, doc='High part of numerator')
d = Operand('d', iWord, doc='Denominator')
q = Operand('q', iWord, doc='Quotient')
r = Operand('r', iWord, doc='Remainder')
udivmodx = Instruction(
'x86_udivmodx', r"""