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add default ctor.

llvm-svn: 75114
This commit is contained in:
Chris Lattner 2009-07-09 06:44:01 +00:00
parent 9feb73cd75
commit f2112b9d1a

View File

@ -39,6 +39,7 @@ namespace RegState {
class MachineInstrBuilder {
MachineInstr *MI;
public:
MachineInstrBuilder() : MI(0) {}
explicit MachineInstrBuilder(MachineInstr *mi) : MI(mi) {}
/// Allow automatic conversion to the machine instruction we are working on.