From b072090f3975bb155304b2e7dc313997132dbd25 Mon Sep 17 00:00:00 2001
From: Krzysztof Parzyszek <kparzysz@codeaurora.org>
Date: Mon, 6 May 2013 21:25:45 +0000
Subject: Cleanup of the HexagonTargetMachine setup.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181250 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/Hexagon/HexagonTargetMachine.cpp | 63 ++++++++++++++++-------------
 1 file changed, 34 insertions(+), 29 deletions(-)

diff --git a/lib/Target/Hexagon/HexagonTargetMachine.cpp b/lib/Target/Hexagon/HexagonTargetMachine.cpp
index 2483f5d689..caa1ba4964 100644
--- a/lib/Target/Hexagon/HexagonTargetMachine.cpp
+++ b/lib/Target/Hexagon/HexagonTargetMachine.cpp
@@ -25,19 +25,17 @@
 
 using namespace llvm;
 
-static cl::
-opt<bool> DisableHardwareLoops(
-                        "disable-hexagon-hwloops", cl::Hidden,
-                        cl::desc("Disable Hardware Loops for Hexagon target"));
+static cl:: opt<bool> DisableHardwareLoops("disable-hexagon-hwloops",
+      cl::Hidden, cl::desc("Disable Hardware Loops for Hexagon target"));
 
-static cl::
-opt<bool> DisableHexagonMISched("disable-hexagon-misched",
-                                cl::Hidden, cl::ZeroOrMore, cl::init(false),
-                                cl::desc("Disable Hexagon MI Scheduling"));
+static cl::opt<bool> DisableHexagonMISched("disable-hexagon-misched",
+      cl::Hidden, cl::ZeroOrMore, cl::init(false),
+      cl::desc("Disable Hexagon MI Scheduling"));
 
 static cl::opt<bool> DisableHexagonCFGOpt("disable-hexagon-cfgopt",
-    cl::Hidden, cl::ZeroOrMore, cl::init(false),
-    cl::desc("Disable Hexagon CFG Optimization"));
+      cl::Hidden, cl::ZeroOrMore, cl::init(false),
+      cl::desc("Disable Hexagon CFG Optimization"));
+
 
 /// HexagonTargetMachineModule - Note that this is used on hosts that
 /// cannot link in a library unless there are references into the
@@ -126,55 +124,62 @@ TargetPassConfig *HexagonTargetMachine::createPassConfig(PassManagerBase &PM) {
 }
 
 bool HexagonPassConfig::addInstSelector() {
+  const HexagonTargetMachine &TM = getHexagonTargetMachine();
+  bool NoOpt = (getOptLevel() == CodeGenOpt::None);
 
-  if (getOptLevel() != CodeGenOpt::None)
-    addPass(createHexagonRemoveExtendArgs(getHexagonTargetMachine()));
+  if (!NoOpt)
+    addPass(createHexagonRemoveExtendArgs(TM));
 
-  addPass(createHexagonISelDag(getHexagonTargetMachine(), getOptLevel()));
+  addPass(createHexagonISelDag(TM, getOptLevel()));
 
-  if (getOptLevel() != CodeGenOpt::None)
+  if (!NoOpt) {
     addPass(createHexagonPeephole());
+    printAndVerify("After hexagon peephole pass");
+  }
 
   return false;
 }
 
-
 bool HexagonPassConfig::addPreRegAlloc() {
-  if (!DisableHardwareLoops && getOptLevel() != CodeGenOpt::None)
-    addPass(createHexagonHardwareLoops());
+  if (getOptLevel() != CodeGenOpt::None)
+    if (!DisableHardwareLoops)
+      addPass(createHexagonHardwareLoops());
   return false;
 }
 
 bool HexagonPassConfig::addPostRegAlloc() {
-  if (!DisableHexagonCFGOpt && getOptLevel() != CodeGenOpt::None)
-    addPass(createHexagonCFGOptimizer(getHexagonTargetMachine()));
-  return true;
+  const HexagonTargetMachine &TM = getHexagonTargetMachine();
+  if (getOptLevel() != CodeGenOpt::None)
+    if (!DisableHexagonCFGOpt)
+      addPass(createHexagonCFGOptimizer(TM));
+  return false;
 }
 
-
 bool HexagonPassConfig::addPreSched2() {
   if (getOptLevel() != CodeGenOpt::None)
     addPass(&IfConverterID);
-  return true;
+  return false;
 }
 
 bool HexagonPassConfig::addPreEmitPass() {
+  const HexagonTargetMachine &TM = getHexagonTargetMachine();
+  bool NoOpt = (getOptLevel() == CodeGenOpt::None);
 
-  if (!DisableHardwareLoops && getOptLevel() != CodeGenOpt::None)
-    addPass(createHexagonFixupHwLoops());
-
-  if (getOptLevel() != CodeGenOpt::None)
+  if (!NoOpt)
     addPass(createHexagonNewValueJump());
 
   // Expand Spill code for predicate registers.
-  addPass(createHexagonExpandPredSpillCode(getHexagonTargetMachine()));
+  addPass(createHexagonExpandPredSpillCode(TM));
 
   // Split up TFRcondsets into conditional transfers.
-  addPass(createHexagonSplitTFRCondSets(getHexagonTargetMachine()));
+  addPass(createHexagonSplitTFRCondSets(TM));
 
   // Create Packets.
-  if (getOptLevel() != CodeGenOpt::None)
+  if (!NoOpt) {
+    if (!DisableHardwareLoops)
+      addPass(createHexagonFixupHwLoops());
     addPass(createHexagonPacketizer());
+  }
 
   return false;
 }
-- 
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