AArch64: Use TTI branch functions in branch relaxation

The main change is to return the code size from
InsertBranch/RemoveBranch.

Patch mostly by Tim Northover

llvm-svn: 281505

1 files changed, 7 insertions, 2 deletions

diff --git a/llvm/lib/Target/PowerPC/PPCInstrInfo.cpp b/llvm/lib/Target/PowerPC/PPCInstrInfo.cpp
index ece7e086575..5a0ed18e0f9 100644
--- a/llvm/lib/Target/PowerPC/PPCInstrInfo.cpp
+++ b/llvm/lib/Target/PowerPC/PPCInstrInfo.cpp
@@ -605,7 +605,10 @@ bool PPCInstrInfo::analyzeBranch(MachineBasicBlock &MBB,
   return true;
 }
 
-unsigned PPCInstrInfo::RemoveBranch(MachineBasicBlock &MBB) const {
+unsigned PPCInstrInfo::RemoveBranch(MachineBasicBlock &MBB,
+                                    int *BytesRemoved) const {
+  assert(!BytesRemoved && "code size not handled");
+
   MachineBasicBlock::iterator I = MBB.getLastNonDebugInstr();
   if (I == MBB.end())
     return 0;
@@ -638,11 +641,13 @@ unsigned PPCInstrInfo::InsertBranch(MachineBasicBlock &MBB,
                                     MachineBasicBlock *TBB,
                                     MachineBasicBlock *FBB,
                                     ArrayRef<MachineOperand> Cond,
-                                    const DebugLoc &DL) const {
+                                    const DebugLoc &DL,
+                                    int *BytesAdded) const {
   // Shouldn't be a fall through.
   assert(TBB && "InsertBranch must not be told to insert a fallthrough");
   assert((Cond.size() == 2 || Cond.size() == 0) &&
          "PPC branch conditions have two components!");
+  assert(!BytesAdded && "code size not handled");
 
   bool isPPC64 = Subtarget.isPPC64();