From bdedc148a8b7fda14f506e4247fb278ef5719f33 Mon Sep 17 00:00:00 2001
From: Bruno Cardoso Lopes <bruno.cardoso@gmail.com>
Date: Sun, 1 Jun 2008 03:49:39 +0000
Subject: [PATCH] Fixed flag issue that was generating infinite loop while in
 list scheduling.

llvm-svn: 51833
---
 llvm/lib/Target/Mips/MipsISelLowering.cpp | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/llvm/lib/Target/Mips/MipsISelLowering.cpp b/llvm/lib/Target/Mips/MipsISelLowering.cpp
index 5ea9cdd9c254..5f05a6f1e727 100644
--- a/llvm/lib/Target/Mips/MipsISelLowering.cpp
+++ b/llvm/lib/Target/Mips/MipsISelLowering.cpp
@@ -365,6 +365,12 @@ LowerCCCCallTo(SDOperand Op, SelectionDAG &DAG, unsigned CC)
   Chain  = DAG.getNode(MipsISD::JmpLink, NodeTys, &Ops[0], Ops.size());
   InFlag = Chain.getValue(1);
 
+  Chain = DAG.getCALLSEQ_END(Chain,
+                             DAG.getConstant(NumBytes, getPointerTy()),
+                             DAG.getConstant(0, getPointerTy()),
+                             InFlag);
+  InFlag = Chain.getValue(1);
+
   // Create a stack location to hold GP when PIC is used. This stack 
   // location is used on function prologue to save GP and also after all 
   // emited CALL's to restore GP. 
@@ -391,14 +397,10 @@ LowerCCCCallTo(SDOperand Op, SelectionDAG &DAG, unsigned CC)
       Chain = GPLoad.getValue(1);
       Chain = DAG.getCopyToReg(Chain, DAG.getRegister(Mips::GP, MVT::i32), 
                                GPLoad, SDOperand(0,0));
+      InFlag = Chain.getValue(1);
   }      
 
   // Create the CALLSEQ_END node.
-  Chain = DAG.getCALLSEQ_END(Chain,
-                             DAG.getConstant(NumBytes, getPointerTy()),
-                             DAG.getConstant(0, getPointerTy()),
-                             InFlag);
-  InFlag = Chain.getValue(1);
 
   // Handle result values, copying them out of physregs into vregs that we
   // return.