From 721c201bd55ffb73cb2ba8d39e0570fa38c44e15 Mon Sep 17 00:00:00 2001
From: dim <dim@FreeBSD.org>
Date: Wed, 15 Aug 2012 19:34:23 +0000
Subject: Vendor import of llvm trunk r161861:
http://llvm.org/svn/llvm-project/llvm/trunk@161861
---
lib/Target/PowerPC/PPCBranchSelector.cpp | 36 +++++++++++++++++++++-----------
1 file changed, 24 insertions(+), 12 deletions(-)
(limited to 'lib/Target/PowerPC/PPCBranchSelector.cpp')
diff --git a/lib/Target/PowerPC/PPCBranchSelector.cpp b/lib/Target/PowerPC/PPCBranchSelector.cpp
index 5f775e1..21a0fb2 100644
--- a/lib/Target/PowerPC/PPCBranchSelector.cpp
+++ b/lib/Target/PowerPC/PPCBranchSelector.cpp
@@ -135,21 +135,33 @@ bool PPCBSel::runOnMachineFunction(MachineFunction &Fn) {
MBBStartOffset += 4;
continue;
}
-
+
// Otherwise, we have to expand it to a long branch.
- // The BCC operands are:
- // 0. PPC branch predicate
- // 1. CR register
- // 2. Target MBB
- PPC::Predicate Pred = (PPC::Predicate)I->getOperand(0).getImm();
- unsigned CRReg = I->getOperand(1).getReg();
-
MachineInstr *OldBranch = I;
DebugLoc dl = OldBranch->getDebugLoc();
-
- // Jump over the uncond branch inst (i.e. $PC+8) on opposite condition.
- BuildMI(MBB, I, dl, TII->get(PPC::BCC))
- .addImm(PPC::InvertPredicate(Pred)).addReg(CRReg).addImm(2);
+
+ if (I->getOpcode() == PPC::BCC) {
+ // The BCC operands are:
+ // 0. PPC branch predicate
+ // 1. CR register
+ // 2. Target MBB
+ PPC::Predicate Pred = (PPC::Predicate)I->getOperand(0).getImm();
+ unsigned CRReg = I->getOperand(1).getReg();
+
+ // Jump over the uncond branch inst (i.e. $PC+8) on opposite condition.
+ BuildMI(MBB, I, dl, TII->get(PPC::BCC))
+ .addImm(PPC::InvertPredicate(Pred)).addReg(CRReg).addImm(2);
+ } else if (I->getOpcode() == PPC::BDNZ) {
+ BuildMI(MBB, I, dl, TII->get(PPC::BDZ)).addImm(2);
+ } else if (I->getOpcode() == PPC::BDNZ8) {
+ BuildMI(MBB, I, dl, TII->get(PPC::BDZ8)).addImm(2);
+ } else if (I->getOpcode() == PPC::BDZ) {
+ BuildMI(MBB, I, dl, TII->get(PPC::BDNZ)).addImm(2);
+ } else if (I->getOpcode() == PPC::BDZ8) {
+ BuildMI(MBB, I, dl, TII->get(PPC::BDNZ8)).addImm(2);
+ } else {
+ llvm_unreachable("Unhandled branch type!");
+ }
// Uncond branch to the real destination.
I = BuildMI(MBB, I, dl, TII->get(PPC::B)).addMBB(Dest);
--
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