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Optionally create a MachineInstr without default implicit operands. 

llvm-svn: 42945
This commit is contained in:
Evan Cheng 2007-10-13 02:23:01 +00:00
parent 6a91cc03ad
commit 9490e0d078
2 changed files with 6 additions and 5 deletions
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2
llvm/include/llvm/CodeGen/MachineInstr.h
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@ -340,7 +340,7 @@ public:
/// MachineInstr ctor - This constructor create a MachineInstr and add the
/// implicit operands. It reserves space for number of operands specified by
/// TargetInstrDescriptor.
explicit MachineInstr(const TargetInstrDescriptor &TID);
explicit MachineInstr(const TargetInstrDescriptor &TID, bool NoImp = false);
/// MachineInstr ctor - Work exactly the same as the ctor above, except that
/// the MachineInstr is created and added to the end of the specified basic

9
llvm/lib/CodeGen/MachineInstr.cpp
View File

@ -58,16 +58,17 @@ void MachineInstr::addImplicitDefUseOperands() {
/// 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);
}