llvm-6502/test/TableGen/defmclass.td
Bruno Cardoso Lopes 6e0a99a7ab Teach tablegen how to inherit from classes in 'defm' definitions.
The rule is simple: only inherit from a class list if they come
in the end, after the last multiclass.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106305 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-18 19:53:41 +00:00

37 lines
602 B
TableGen

// RUN: tblgen %s | FileCheck %s
// XFAIL: vg_leak
class XD { bits<4> Prefix = 11; }
// CHECK: Prefix = { 1, 1, 0, 0 };
class XS { bits<4> Prefix = 12; }
class VEX { bit hasVEX_4VPrefix = 1; }
def xd : XD;
class BaseI {
bits<4> Prefix = 0;
bit hasVEX_4VPrefix = 0;
}
class I<bits<4> op> : BaseI {
bits<4> opcode = op;
int val = !if(!eq(Prefix, xd.Prefix), 7, 21);
}
multiclass R {
def rr : I<4>;
}
multiclass M {
def rm : I<2>;
}
multiclass Y {
defm SS : R, M, XD;
// CHECK: Prefix = { 1, 1, 0, 0 };
// CHECK: Prefix = { 1, 1, 0, 0 };
defm SD : R, M, XS;
}
defm Instr : Y, VEX;