From 2dc7723474c54efcbcac6265dad0a7271902f1a5 Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Tue, 17 Oct 2006 18:06:55 +0000
Subject: [PATCH] add support for inserting an uncond branch

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31003 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/PowerPC/PPCInstrInfo.cpp | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/lib/Target/PowerPC/PPCInstrInfo.cpp b/lib/Target/PowerPC/PPCInstrInfo.cpp
index ddb9dbf3162..9bf0746a2a2 100644
--- a/lib/Target/PowerPC/PPCInstrInfo.cpp
+++ b/lib/Target/PowerPC/PPCInstrInfo.cpp
@@ -238,8 +238,14 @@ void PPCInstrInfo::RemoveBranch(MachineBasicBlock &MBB) const {
 void PPCInstrInfo::InsertBranch(MachineBasicBlock &MBB, MachineBasicBlock *TBB,
                                 MachineBasicBlock *FBB,
                                 const std::vector<MachineOperand> &Cond) const {
-  // Fall through?
-  if (TBB == 0 && FBB == 0) return;
+  // Shouldn't be a fall through.
+  assert(TBB && "InsertBranch must not be told to insert a fallthrough");
+  
+  // Unconditional branch?
+  if (FBB == 0) {
+    BuildMI(&MBB, PPC::B, 1).addMBB(TBB);
+    return;
+  }
   
   assert(Cond.size() == 2 && "PPC branch conditions have two components!");