Infrastructure for getting the machine code size of a function and an instruction. X86, PowerPC and ARM are implemented
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49809 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/TargetInstrInfoImpl.cpp b/lib/CodeGen/TargetInstrInfoImpl.cpp
index 4b8c669..1bb08ab 100644
--- a/lib/CodeGen/TargetInstrInfoImpl.cpp
+++ b/lib/CodeGen/TargetInstrInfoImpl.cpp
@@ -94,3 +94,14 @@
MBB.insert(I, MI);
}
+unsigned
+TargetInstrInfoImpl::GetFunctionSizeInBytes(const MachineFunction &MF) const {
+ unsigned FnSize = 0;
+ for (MachineFunction::const_iterator MBBI = MF.begin(), E = MF.end();
+ MBBI != E; ++MBBI) {
+ const MachineBasicBlock &MBB = *MBBI;
+ for (MachineBasicBlock::const_iterator I = MBB.begin(),E = MBB.end(); I != E; ++I)
+ FnSize += GetInstSizeInBytes(I);
+ }
+ return FnSize;
+}