PPC: Split kPPC_Add into kPPC_Add[32|64]

R=joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com
BUG=
LOG=N

Review-Url: https://codereview.chromium.org/2559433003
Cr-Commit-Position: refs/heads/master@{#41536}

src/compiler/ppc/code-generator-ppc.cc

@@ -263,7 +263,8 @@ Condition FlagsConditionToCondition(FlagsCondition condition, ArchOpcode op) {
       // Overflow checked for add/sub only.
       switch (op) {
 #if V8_TARGET_ARCH_PPC64
-        case kPPC_Add:
+        case kPPC_Add32:
+        case kPPC_Add64:
         case kPPC_Sub:
 #endif
         case kPPC_AddWithOverflow32:
@@ -276,7 +277,8 @@ Condition FlagsConditionToCondition(FlagsCondition condition, ArchOpcode op) {
     case kNotOverflow:
       switch (op) {
 #if V8_TARGET_ARCH_PPC64
-        case kPPC_Add:
+        case kPPC_Add32:
+        case kPPC_Add64:
         case kPPC_Sub:
 #endif
         case kPPC_AddWithOverflow32:
@@ -1322,7 +1324,7 @@ CodeGenerator::CodeGenResult CodeGenerator::AssembleArchInstruction(
                 63 - i.InputInt32(2), i.OutputRCBit());
       break;
 #endif
-    case kPPC_Add:
+    case kPPC_Add32:
 #if V8_TARGET_ARCH_PPC64
       if (FlagsModeField::decode(instr->opcode()) != kFlags_none) {
         ASSEMBLE_ADD_WITH_OVERFLOW();
@@ -1335,10 +1337,26 @@ CodeGenerator::CodeGenResult CodeGenerator::AssembleArchInstruction(
           __ addi(i.OutputRegister(), i.InputRegister(0), i.InputImmediate(1));
           DCHECK_EQ(LeaveRC, i.OutputRCBit());
         }
+        __ extsw(i.OutputRegister(), i.OutputRegister());
 #if V8_TARGET_ARCH_PPC64
       }
 #endif
       break;
+#if V8_TARGET_ARCH_PPC64
+    case kPPC_Add64:
+      if (FlagsModeField::decode(instr->opcode()) != kFlags_none) {
+        ASSEMBLE_ADD_WITH_OVERFLOW();
+      } else {
+        if (HasRegisterInput(instr, 1)) {
+          __ add(i.OutputRegister(), i.InputRegister(0), i.InputRegister(1),
+                 LeaveOE, i.OutputRCBit());
+        } else {
+          __ addi(i.OutputRegister(), i.InputRegister(0), i.InputImmediate(1));
+          DCHECK_EQ(LeaveRC, i.OutputRCBit());
+        }
+      }
+      break;
+#endif
     case kPPC_AddWithOverflow32:
       ASSEMBLE_ADD_WITH_OVERFLOW32();
       break;

src/compiler/ppc/instruction-codes-ppc.h

@@ -33,7 +33,8 @@ namespace compiler {
   V(PPC_RotLeftAndClear64)         \
   V(PPC_RotLeftAndClearLeft64)     \
   V(PPC_RotLeftAndClearRight64)    \
-  V(PPC_Add)                       \
+  V(PPC_Add32)                     \
+  V(PPC_Add64)                     \
   V(PPC_AddWithOverflow32)         \
   V(PPC_AddPair)                   \
   V(PPC_AddDouble)                 \

src/compiler/ppc/instruction-scheduler-ppc.cc

@@ -35,7 +35,8 @@ int InstructionScheduler::GetTargetInstructionFlags(
     case kPPC_RotLeftAndClear64:
     case kPPC_RotLeftAndClearLeft64:
     case kPPC_RotLeftAndClearRight64:
-    case kPPC_Add:
+    case kPPC_Add32:
+    case kPPC_Add64:
     case kPPC_AddWithOverflow32:
     case kPPC_AddPair:
     case kPPC_AddDouble:

src/compiler/ppc/instruction-selector-ppc.cc

@@ -841,7 +841,7 @@ void VisitPairBinop(InstructionSelector* selector, InstructionCode opcode,
 }
 
 void InstructionSelector::VisitInt32PairAdd(Node* node) {
-  VisitPairBinop(this, kPPC_AddPair, kPPC_Add, node);
+  VisitPairBinop(this, kPPC_AddPair, kPPC_Add32, node);
 }
 
 void InstructionSelector::VisitInt32PairSub(Node* node) {
@@ -1018,13 +1018,13 @@ void InstructionSelector::VisitWord64ReverseBytes(Node* node) { UNREACHABLE(); }
 void InstructionSelector::VisitWord32ReverseBytes(Node* node) { UNREACHABLE(); }
 
 void InstructionSelector::VisitInt32Add(Node* node) {
-  VisitBinop<Int32BinopMatcher>(this, node, kPPC_Add, kInt16Imm);
+  VisitBinop<Int32BinopMatcher>(this, node, kPPC_Add32, kInt16Imm);
 }
 
 
 #if V8_TARGET_ARCH_PPC64
 void InstructionSelector::VisitInt64Add(Node* node) {
-  VisitBinop<Int64BinopMatcher>(this, node, kPPC_Add, kInt16Imm);
+  VisitBinop<Int64BinopMatcher>(this, node, kPPC_Add64, kInt16Imm);
 }
 #endif
 
@@ -1486,11 +1486,11 @@ void InstructionSelector::VisitInt32SubWithOverflow(Node* node) {
 void InstructionSelector::VisitInt64AddWithOverflow(Node* node) {
   if (Node* ovf = NodeProperties::FindProjection(node, 1)) {
     FlagsContinuation cont = FlagsContinuation::ForSet(kOverflow, ovf);
-    return VisitBinop<Int64BinopMatcher>(this, node, kPPC_Add, kInt16Imm,
+    return VisitBinop<Int64BinopMatcher>(this, node, kPPC_Add64, kInt16Imm,
                                          &cont);
   }
   FlagsContinuation cont;
-  VisitBinop<Int64BinopMatcher>(this, node, kPPC_Add, kInt16Imm, &cont);
+  VisitBinop<Int64BinopMatcher>(this, node, kPPC_Add64, kInt16Imm, &cont);
 }
 
 
@@ -1698,7 +1698,7 @@ void VisitWordCompareZero(InstructionSelector* selector, Node* user,
 #if V8_TARGET_ARCH_PPC64
               case IrOpcode::kInt64AddWithOverflow:
                 cont->OverwriteAndNegateIfEqual(kOverflow);
-                return VisitBinop<Int64BinopMatcher>(selector, node, kPPC_Add,
+                return VisitBinop<Int64BinopMatcher>(selector, node, kPPC_Add64,
                                                      kInt16Imm, cont);
               case IrOpcode::kInt64SubWithOverflow:
                 cont->OverwriteAndNegateIfEqual(kOverflow);