Revert 233694. Weak SVN-fu.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233695 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Target/Hexagon/CMakeLists.txt

@@ -15,7 +15,6 @@ add_llvm_target(HexagonCodeGen
   HexagonAsmPrinter.cpp
   HexagonCFGOptimizer.cpp
   HexagonCopyToCombine.cpp
-  HexagonExpandCondsets.cpp
   HexagonExpandPredSpillCode.cpp
   HexagonFixupHwLoops.cpp
   HexagonFrameLowering.cpp

lib/Target/Hexagon/HexagonInstrInfo.cpp

@@ -845,7 +845,8 @@ bool HexagonInstrInfo::isNewValueStore(unsigned Opcode) const {
   return ((F >> HexagonII::NVStorePos) & HexagonII::NVStoreMask);
 }
 
-int HexagonInstrInfo::getCondOpcode(int Opc, bool invertPredicate) const {
+int HexagonInstrInfo::
+getMatchingCondBranchOpcode(int Opc, bool invertPredicate) const {
   enum Hexagon::PredSense inPredSense;
   inPredSense = invertPredicate ? Hexagon::PredSense_false :
                                   Hexagon::PredSense_true;
@@ -883,7 +884,7 @@ PredicateInstruction(MachineInstr *MI,
   // This will change MI's opcode to its predicate version.
   // However, its operand list is still the old one, i.e. the
   // non-predicate one.
-  MI->setDesc(get(getCondOpcode(Opc, invertJump)));
+  MI->setDesc(get(getMatchingCondBranchOpcode(Opc, invertJump)));
 
   int oper = -1;
   unsigned int GAIdx = 0;

lib/Target/Hexagon/HexagonInstrInfo.h

@@ -216,7 +216,9 @@ public:
   short getNonExtOpcode(const MachineInstr *MI) const;
   bool PredOpcodeHasJMP_c(Opcode_t Opcode) const;
   bool PredOpcodeHasNot(Opcode_t Opcode) const;
-  int getCondOpcode(int Opc, bool sense) const;
+
+private:
+  int getMatchingCondBranchOpcode(int Opc, bool sense) const;
 
 };
 

lib/Target/Hexagon/HexagonTargetMachine.cpp

@@ -27,15 +27,11 @@
 using namespace llvm;
 
 static cl:: opt<bool> DisableHardwareLoops("disable-hexagon-hwloops",
-  cl::Hidden, cl::desc("Disable Hardware Loops for Hexagon target"));
+      cl::Hidden, cl::desc("Disable Hardware Loops for Hexagon target"));
 
 static cl::opt<bool> DisableHexagonCFGOpt("disable-hexagon-cfgopt",
-  cl::Hidden, cl::ZeroOrMore, cl::init(false),
-  cl::desc("Disable Hexagon CFG Optimization"));
-
-static cl::opt<bool> EnableExpandCondsets("hexagon-expand-condsets",
-  cl::init(true), cl::Hidden, cl::ZeroOrMore,
-  cl::desc("Early expansion of MUX"));
+      cl::Hidden, cl::ZeroOrMore, cl::init(false),
+      cl::desc("Disable Hexagon CFG Optimization"));
 
 
 /// HexagonTargetMachineModule - Note that this is used on hosts that
@@ -59,10 +55,6 @@ static MachineSchedRegistry
 SchedCustomRegistry("hexagon", "Run Hexagon's custom scheduler",
                     createVLIWMachineSched);
 
-namespace llvm {
-  FunctionPass *createHexagonExpandCondsets();
-}
-
 /// HexagonTargetMachine ctor - Create an ILP32 architecture model.
 ///
 
@@ -87,15 +79,7 @@ namespace {
 class HexagonPassConfig : public TargetPassConfig {
 public:
   HexagonPassConfig(HexagonTargetMachine *TM, PassManagerBase &PM)
-    : TargetPassConfig(TM, PM) {
-    bool NoOpt = (TM->getOptLevel() == CodeGenOpt::None);
-    if (!NoOpt) {
-      if (EnableExpandCondsets) {
-        Pass *Exp = createHexagonExpandCondsets();
-        insertPass(&RegisterCoalescerID, IdentifyingPassPtr(Exp));
-      }
-    }
-  }
+      : TargetPassConfig(TM, PM) {}
 
   HexagonTargetMachine &getHexagonTargetMachine() const {
     return getTM<HexagonTargetMachine>();

test/CodeGen/Hexagon/adde.ll

@@ -1,4 +1,4 @@
-; RUN: llc -march=hexagon -hexagon-expand-condsets=0 < %s | FileCheck %s
+; RUN: llc -march=hexagon < %s | FileCheck %s
 
 ; CHECK: r{{[0-9]+:[0-9]+}} = #0
 ; CHECK: r{{[0-9]+:[0-9]+}} = #1

test/CodeGen/Hexagon/sube.ll

@@ -1,4 +1,4 @@
-; RUN: llc -march=hexagon -hexagon-expand-condsets=0 < %s | FileCheck %s
+; RUN: llc -march=hexagon < %s | FileCheck %s
 
 ; CHECK: r{{[0-9]+:[0-9]+}} = #0
 ; CHECK: r{{[0-9]+:[0-9]+}} = #1

test/MC/Hexagon/inst_select.ll

@@ -7,4 +7,4 @@ define i32 @foo (i1 %a, i32 %b, i32 %c)
   ret i32 %1
 }
 
-; CHECK:  0000 00400085 00600174 00608274 00c09f52
+; CHECK:  0000 00400085 004201f4 00c09f52