[llvm-commits] [llvm] r71282 - /llvm/trunk/lib/Target/PowerPC/PPCInstrInfo.cpp
Evan Cheng
evan.cheng at apple.com
Fri May 8 16:09:25 PDT 2009
Author: evancheng
Date: Fri May 8 18:09:25 2009
New Revision: 71282
URL: http://llvm.org/viewvc/llvm-project?rev=71282&view=rev
Log:
PPC::B and PPC::BCC's target operand may be an immediate.
Modified:
llvm/trunk/lib/Target/PowerPC/PPCInstrInfo.cpp
Modified: llvm/trunk/lib/Target/PowerPC/PPCInstrInfo.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/PowerPC/PPCInstrInfo.cpp?rev=71282&r1=71281&r2=71282&view=diff
==============================================================================
--- llvm/trunk/lib/Target/PowerPC/PPCInstrInfo.cpp (original)
+++ llvm/trunk/lib/Target/PowerPC/PPCInstrInfo.cpp Fri May 8 18:09:25 2009
@@ -220,9 +220,13 @@
// If there is only one terminator instruction, process it.
if (I == MBB.begin() || !isUnpredicatedTerminator(--I)) {
if (LastInst->getOpcode() == PPC::B) {
+ if (!LastInst->getOperand(0).isMBB())
+ return true;
TBB = LastInst->getOperand(0).getMBB();
return false;
} else if (LastInst->getOpcode() == PPC::BCC) {
+ if (!LastInst->getOperand(2).isMBB())
+ return true;
// Block ends with fall-through condbranch.
TBB = LastInst->getOperand(2).getMBB();
Cond.push_back(LastInst->getOperand(0));
@@ -244,6 +248,9 @@
// If the block ends with PPC::B and PPC:BCC, handle it.
if (SecondLastInst->getOpcode() == PPC::BCC &&
LastInst->getOpcode() == PPC::B) {
+ if (!SecondLastInst->getOperand(2).isMBB() ||
+ !LastInst->getOperand(0).isMBB())
+ return true;
TBB = SecondLastInst->getOperand(2).getMBB();
Cond.push_back(SecondLastInst->getOperand(0));
Cond.push_back(SecondLastInst->getOperand(1));
@@ -255,6 +262,8 @@
// executed, so remove it.
if (SecondLastInst->getOpcode() == PPC::B &&
LastInst->getOpcode() == PPC::B) {
+ if (!SecondLastInst->getOperand(0).isMBB())
+ return true;
TBB = SecondLastInst->getOperand(0).getMBB();
I = LastInst;
if (AllowModify)
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