Change MachineInstr ctor's to take a TargetInstrDescriptor reference instead
of opcode and number of operands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31947 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/MachineInstr.cpp b/lib/CodeGen/MachineInstr.cpp
index 16e235a..bafdffb 100644
--- a/lib/CodeGen/MachineInstr.cpp
+++ b/lib/CodeGen/MachineInstr.cpp
@@ -32,14 +32,10 @@
extern const TargetInstrDescriptor *TargetInstrDescriptors;
}
-/// MachineInstr ctor - This constructor only does a _reserve_ of the operands,
-/// not a resize for them. It is expected that if you use this that you call
-/// add* methods below to fill up the operands, instead of the Set methods.
-/// Eventually, the "resizing" ctors will be phased out.
-///
-MachineInstr::MachineInstr(short opcode, unsigned numOperands)
- : Opcode(opcode), NumImplicitOps(0), parent(0) {
- Operands.reserve(numOperands);
+/// MachineInstr ctor - This constructor creates a dummy MachineInstr with
+/// opcode 0 and no operands.
+MachineInstr::MachineInstr()
+ : Opcode(0), NumImplicitOps(0), parent(0) {
// Make sure that we get added to a machine basicblock
LeakDetector::addGarbageObject(this);
}
@@ -72,18 +68,18 @@
}
/// MachineInstr ctor - This constructor create a MachineInstr and add the
-/// implicit operands. It reserves space for numOperand operands.
-MachineInstr::MachineInstr(const TargetInstrInfo &TII, short opcode,
- unsigned numOperands)
- : Opcode(opcode), NumImplicitOps(0), parent(0) {
- const TargetInstrDescriptor &TID = TII.get(opcode);
+/// 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)
+ : Opcode(TID.Opcode), NumImplicitOps(0), parent(0) {
if (TID.ImplicitDefs)
for (const unsigned *ImpDefs = TID.ImplicitDefs; *ImpDefs; ++ImpDefs)
NumImplicitOps++;
if (TID.ImplicitUses)
for (const unsigned *ImpUses = TID.ImplicitUses; *ImpUses; ++ImpUses)
NumImplicitOps++;
- Operands.reserve(NumImplicitOps + numOperands);
+ Operands.reserve(NumImplicitOps + TID.numOperands);
addImplicitDefUseOperands(TID);
// Make sure that we get added to a machine basicblock
LeakDetector::addGarbageObject(this);
@@ -92,19 +88,17 @@
/// 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 block.
///
-MachineInstr::MachineInstr(MachineBasicBlock *MBB, short opcode,
- unsigned numOperands)
- : Opcode(opcode), NumImplicitOps(0), parent(0) {
+MachineInstr::MachineInstr(MachineBasicBlock *MBB,
+ const TargetInstrDescriptor &TID)
+ : Opcode(TID.Opcode), NumImplicitOps(0), parent(0) {
assert(MBB && "Cannot use inserting ctor with null basic block!");
- const TargetInstrDescriptor &TID = MBB->getParent()->getTarget().
- getInstrInfo()->get(opcode);
if (TID.ImplicitDefs)
for (const unsigned *ImpDefs = TID.ImplicitDefs; *ImpDefs; ++ImpDefs)
NumImplicitOps++;
if (TID.ImplicitUses)
for (const unsigned *ImpUses = TID.ImplicitUses; *ImpUses; ++ImpUses)
NumImplicitOps++;
- Operands.reserve(NumImplicitOps + numOperands);
+ Operands.reserve(NumImplicitOps + TID.numOperands);
addImplicitDefUseOperands(TID);
// Make sure that we get added to a machine basicblock
LeakDetector::addGarbageObject(this);