From 706b4fc47bbc608932d3b491ae19a3b9cde9497b Mon Sep 17 00:00:00 2001
From: Dimitry Andric <dim@FreeBSD.org>
Date: Fri, 17 Jan 2020 20:45:01 +0000
Subject: Vendor import of llvm-project master e26a78e70, the last commit
 before the llvmorg-11-init tag, from which release/10.x was branched.

---
 llvm/lib/CodeGen/MachineInstrBundle.cpp | 31 ++++++++++++++-----------------
 1 file changed, 14 insertions(+), 17 deletions(-)

(limited to 'llvm/lib/CodeGen/MachineInstrBundle.cpp')

diff --git a/llvm/lib/CodeGen/MachineInstrBundle.cpp b/llvm/lib/CodeGen/MachineInstrBundle.cpp
index feb849ced353..94865b0e9031 100644
--- a/llvm/lib/CodeGen/MachineInstrBundle.cpp
+++ b/llvm/lib/CodeGen/MachineInstrBundle.cpp
@@ -15,6 +15,7 @@
 #include "llvm/CodeGen/TargetInstrInfo.h"
 #include "llvm/CodeGen/TargetRegisterInfo.h"
 #include "llvm/CodeGen/TargetSubtargetInfo.h"
+#include "llvm/InitializePasses.h"
 #include "llvm/Target/TargetMachine.h"
 #include <utility>
 using namespace llvm;
@@ -277,22 +278,18 @@ bool llvm::finalizeBundles(MachineFunction &MF) {
   return Changed;
 }
 
-//===----------------------------------------------------------------------===//
-// MachineOperand iterator
-//===----------------------------------------------------------------------===//
-
-MachineOperandIteratorBase::VirtRegInfo
-MachineOperandIteratorBase::analyzeVirtReg(unsigned Reg,
-                    SmallVectorImpl<std::pair<MachineInstr*, unsigned> > *Ops) {
-  VirtRegInfo RI = { false, false, false };
-  for(; isValid(); ++*this) {
-    MachineOperand &MO = deref();
+VirtRegInfo llvm::AnalyzeVirtRegInBundle(
+    MachineInstr &MI, unsigned Reg,
+    SmallVectorImpl<std::pair<MachineInstr *, unsigned>> *Ops) {
+  VirtRegInfo RI = {false, false, false};
+  for (MIBundleOperands O(MI); O.isValid(); ++O) {
+    MachineOperand &MO = *O;
     if (!MO.isReg() || MO.getReg() != Reg)
       continue;
 
     // Remember each (MI, OpNo) that refers to Reg.
     if (Ops)
-      Ops->push_back(std::make_pair(MO.getParent(), getOperandNo()));
+      Ops->push_back(std::make_pair(MO.getParent(), O.getOperandNo()));
 
     // Both defs and uses can read virtual registers.
     if (MO.readsReg()) {
@@ -304,22 +301,22 @@ MachineOperandIteratorBase::analyzeVirtReg(unsigned Reg,
     // Only defs can write.
     if (MO.isDef())
       RI.Writes = true;
-    else if (!RI.Tied && MO.getParent()->isRegTiedToDefOperand(getOperandNo()))
+    else if (!RI.Tied &&
+             MO.getParent()->isRegTiedToDefOperand(O.getOperandNo()))
       RI.Tied = true;
   }
   return RI;
 }
 
-MachineOperandIteratorBase::PhysRegInfo
-MachineOperandIteratorBase::analyzePhysReg(unsigned Reg,
-                                           const TargetRegisterInfo *TRI) {
+PhysRegInfo llvm::AnalyzePhysRegInBundle(const MachineInstr &MI, unsigned Reg,
+                                         const TargetRegisterInfo *TRI) {
   bool AllDefsDead = true;
   PhysRegInfo PRI = {false, false, false, false, false, false, false, false};
 
   assert(Register::isPhysicalRegister(Reg) &&
          "analyzePhysReg not given a physical register!");
-  for (; isValid(); ++*this) {
-    MachineOperand &MO = deref();
+  for (ConstMIBundleOperands O(MI); O.isValid(); ++O) {
+    const MachineOperand &MO = *O;
 
     if (MO.isRegMask() && MO.clobbersPhysReg(Reg)) {
       PRI.Clobbered = true;
-- 
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