implement support for inserting a cond branch
llvm-svn: 31096
diff --git a/llvm/lib/Target/PowerPC/PPCInstrInfo.cpp b/llvm/lib/Target/PowerPC/PPCInstrInfo.cpp
index 9bf0746..941229d 100644
--- a/llvm/lib/Target/PowerPC/PPCInstrInfo.cpp
+++ b/llvm/lib/Target/PowerPC/PPCInstrInfo.cpp
@@ -240,15 +240,19 @@
const std::vector<MachineOperand> &Cond) 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!");
- // Unconditional branch?
+ // One-way branch.
if (FBB == 0) {
- BuildMI(&MBB, PPC::B, 1).addMBB(TBB);
+ if (Cond.empty()) // Unconditional branch
+ BuildMI(&MBB, PPC::B, 1).addMBB(TBB);
+ else // Conditional branch
+ BuildMI(&MBB, PPC::COND_BRANCH, 3)
+ .addReg(Cond[0].getReg()).addImm(Cond[1].getImm()).addMBB(TBB);
return;
}
- assert(Cond.size() == 2 && "PPC branch conditions have two components!");
-
// Conditional branch
BuildMI(&MBB, PPC::COND_BRANCH, 3)
.addReg(Cond[0].getReg()).addImm(Cond[1].getImm()).addMBB(TBB);