From 9f2cda73e470673ab63509adc9d096b0a1d13c54 Mon Sep 17 00:00:00 2001
From: Dan Gohman <gohman@apple.com>
Date: Wed, 5 May 2010 20:58:01 +0000
Subject: [PATCH] No-ops emitted for scheduling don't correspond with anything
 in the user's source, so don't arbitrarily assign them a debug location.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103121 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/Alpha/AlphaInstrInfo.cpp   | 1 -
 lib/Target/MBlaze/MBlazeInstrInfo.cpp | 1 -
 lib/Target/Mips/MipsInstrInfo.cpp     | 1 -
 lib/Target/PowerPC/PPCInstrInfo.cpp   | 2 --
 4 files changed, 5 deletions(-)

diff --git a/lib/Target/Alpha/AlphaInstrInfo.cpp b/lib/Target/Alpha/AlphaInstrInfo.cpp
index ba403e22ce3..9b7e42e1774 100644
--- a/lib/Target/Alpha/AlphaInstrInfo.cpp
+++ b/lib/Target/Alpha/AlphaInstrInfo.cpp
@@ -399,7 +399,6 @@ unsigned AlphaInstrInfo::RemoveBranch(MachineBasicBlock &MBB) const {
 void AlphaInstrInfo::insertNoop(MachineBasicBlock &MBB, 
                                 MachineBasicBlock::iterator MI) const {
   DebugLoc DL;
-  if (MI != MBB.end()) DL = MI->getDebugLoc();
   BuildMI(MBB, MI, DL, get(Alpha::BISr), Alpha::R31)
     .addReg(Alpha::R31)
     .addReg(Alpha::R31);
diff --git a/lib/Target/MBlaze/MBlazeInstrInfo.cpp b/lib/Target/MBlaze/MBlazeInstrInfo.cpp
index 01f317471ee..c32d1960a30 100644
--- a/lib/Target/MBlaze/MBlazeInstrInfo.cpp
+++ b/lib/Target/MBlaze/MBlazeInstrInfo.cpp
@@ -107,7 +107,6 @@ isStoreToStackSlot(const MachineInstr *MI, int &FrameIndex) const {
 void MBlazeInstrInfo::
 insertNoop(MachineBasicBlock &MBB, MachineBasicBlock::iterator MI) const {
   DebugLoc DL;
-  if (MI != MBB.end()) DL = MI->getDebugLoc();
   BuildMI(MBB, MI, DL, get(MBlaze::NOP));
 }
 
diff --git a/lib/Target/Mips/MipsInstrInfo.cpp b/lib/Target/Mips/MipsInstrInfo.cpp
index dbd3c24dc1c..700fb642c36 100644
--- a/lib/Target/Mips/MipsInstrInfo.cpp
+++ b/lib/Target/Mips/MipsInstrInfo.cpp
@@ -124,7 +124,6 @@ void MipsInstrInfo::
 insertNoop(MachineBasicBlock &MBB, MachineBasicBlock::iterator MI) const 
 {
   DebugLoc DL;
-  if (MI != MBB.end()) DL = MI->getDebugLoc();
   BuildMI(MBB, MI, DL, get(Mips::NOP));
 }
 
diff --git a/lib/Target/PowerPC/PPCInstrInfo.cpp b/lib/Target/PowerPC/PPCInstrInfo.cpp
index ae1fbd8220a..af88b44d6a2 100644
--- a/lib/Target/PowerPC/PPCInstrInfo.cpp
+++ b/lib/Target/PowerPC/PPCInstrInfo.cpp
@@ -203,8 +203,6 @@ PPCInstrInfo::commuteInstruction(MachineInstr *MI, bool NewMI) const {
 void PPCInstrInfo::insertNoop(MachineBasicBlock &MBB, 
                               MachineBasicBlock::iterator MI) const {
   DebugLoc DL;
-  if (MI != MBB.end()) DL = MI->getDebugLoc();
-
   BuildMI(MBB, MI, DL, get(PPC::NOP));
 }