Insert phi code at top of block
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5015 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86ISelSimple.cpp b/lib/Target/X86/X86ISelSimple.cpp
index 4cb6562..cad8e0d 100644
--- a/lib/Target/X86/X86ISelSimple.cpp
+++ b/lib/Target/X86/X86ISelSimple.cpp
@@ -340,9 +340,12 @@
// Get the incoming value into a virtual register. If it is not already
// available in a virtual register, insert the computation code into
// PredMBB
- MachineBasicBlock::iterator PI = PredMBB->end()-1;
+ //
+
+ MachineBasicBlock::iterator PI = PredMBB->begin();
+ while ((*PI)->getOpcode() == X86::PHI) ++PI;
+
MI->addRegOperand(getReg(PN->getIncomingValue(i), PredMBB, PI));
-
// FIXME: Pass in the MachineBasicBlocks instead of the basic blocks...
MI->addPCDispOperand(PN->getIncomingBlock(i)); // PredMBB