Code pulled out of MAchineInstr.(h|cpp)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1660 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/MachineCodeForInstruction.cpp b/lib/CodeGen/MachineCodeForInstruction.cpp
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--- /dev/null
+++ b/lib/CodeGen/MachineCodeForInstruction.cpp
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+//===-- MachineCodeForInstruction.cpp -------------------------------------===//
+//
+// Representation of the sequence of machine instructions created
+// for a single VM instruction. Additionally records information
+// about hidden and implicit values used by the machine instructions:
+// about hidden values used by the machine instructions:
+//
+// "Temporary values" are intermediate values used in the machine
+// instruction sequence, but not in the VM instruction
+// Note that such values should be treated as pure SSA values with
+// no interpretation of their operands (i.e., as a TmpInstruction
+// object which actually represents such a value).
+//
+// (2) "Implicit uses" are values used in the VM instruction but not in
+// the machine instruction sequence
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/CodeGen/MachineCodeForInstruction.h"
+#include "llvm/CodeGen/MachineInstr.h"
+#include "llvm/Instruction.h"
+
+static AnnotationID MCFI_AID(
+ AnnotationManager::getID("CodeGen::MachineCodeForInstruction"));
+
+static Annotation *CreateMCFI(AnnotationID AID, const Annotable *, void *) {
+ assert(AID == MCFI_AID);
+ return new MachineCodeForInstruction(); // Invoke constructor!
+}
+
+// Register the annotation with the annotation factory
+static struct Initializer {
+ Initializer() {
+ AnnotationManager::registerAnnotationFactory(MCFI_AID, &CreateMCFI);
+ }
+} RegisterAID;
+
+MachineCodeForInstruction &MachineCodeForInstruction::get(const Instruction *I){
+ return *(MachineCodeForInstruction*)I->getOrCreateAnnotation(MCFI_AID);
+}
+
+void MachineCodeForInstruction::destroy(const Instruction *I) {
+ I->deleteAnnotation(MCFI_AID);
+}
+
+
+MachineCodeForInstruction::MachineCodeForInstruction() : Annotation(MCFI_AID) {}
+
+MachineCodeForInstruction::~MachineCodeForInstruction() {
+ // Free the Value objects created to hold intermediate values
+ for (unsigned i=0, N=tempVec.size(); i < N; i++)
+ delete tempVec[i];
+
+ // Free the MachineInstr objects allocated, if any.
+ for (unsigned i=0, N = size(); i < N; i++)
+ delete (*this)[i];
+}