Add documentation comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155203 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jim Grosbach 2012-04-20 16:29:46 +00:00
parent 93282d2430
commit 2efd8acb3c

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@ -402,6 +402,11 @@ class Instruction {
string AsmMatchConverter = "";
/// TwoOperandAliasConstraint - Enable TableGen to auto-generate a
/// two-operand matcher inst-alias for a three operand instruction.
/// For example, the arm instruction "add r3, r3, r5" can be written
/// as "add r3, r5". The constraint is of the same form as a tied-operand
/// constraint. For example, "$Rn = $Rd".
string TwoOperandAliasConstraint = "";
///@}