Optionally create a MachineInstr without default implicit operands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42945 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/MachineInstr.cpp b/lib/CodeGen/MachineInstr.cpp
index 1ac955a..a3485bc 100644
--- a/lib/CodeGen/MachineInstr.cpp
+++ b/lib/CodeGen/MachineInstr.cpp
@@ -58,16 +58,17 @@
/// implicit operands. It reserves space for number of operands specified by
/// TargetInstrDescriptor or the numOperands if it is not zero. (for
/// instructions with variable number of operands).
-MachineInstr::MachineInstr(const TargetInstrDescriptor &tid)
+MachineInstr::MachineInstr(const TargetInstrDescriptor &tid, bool NoImp)
: TID(&tid), NumImplicitOps(0), parent(0) {
- if (TID->ImplicitDefs)
+ if (!NoImp && TID->ImplicitDefs)
for (const unsigned *ImpDefs = TID->ImplicitDefs; *ImpDefs; ++ImpDefs)
NumImplicitOps++;
- if (TID->ImplicitUses)
+ if (!NoImp && TID->ImplicitUses)
for (const unsigned *ImpUses = TID->ImplicitUses; *ImpUses; ++ImpUses)
NumImplicitOps++;
Operands.reserve(NumImplicitOps + TID->numOperands);
- addImplicitDefUseOperands();
+ if (!NoImp)
+ addImplicitDefUseOperands();
// Make sure that we get added to a machine basicblock
LeakDetector::addGarbageObject(this);
}