Split the Add, Sub, and Mul instruction opcodes into separate

integer and floating-point opcodes, introducing
FAdd, FSub, and FMul.

For now, the AsmParser, BitcodeReader, and IRBuilder all preserve
backwards compatability, and the Core LLVM APIs preserve backwards
compatibility for IR producers. Most front-ends won't need to change
immediately.

This implements the first step of the plan outlined here:
http://nondot.org/sabre/LLVMNotes/IntegerOverflow.txt


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72897 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 12 insertions, 9 deletions

diff --git a/lib/ExecutionEngine/ExecutionEngine.cpp b/lib/ExecutionEngine/ExecutionEngine.cpp
index 29a05bbbdb..a80513f3df 100644
--- a/lib/ExecutionEngine/ExecutionEngine.cpp
+++ b/lib/ExecutionEngine/ExecutionEngine.cpp
@@ -573,8 +573,11 @@ GenericValue ExecutionEngine::getConstantValue(const Constant *C) {
       return GV;
     }
     case Instruction::Add:
+    case Instruction::FAdd:
     case Instruction::Sub:
+    case Instruction::FSub:
     case Instruction::Mul:
+    case Instruction::FMul:
     case Instruction::UDiv:
     case Instruction::SDiv:
     case Instruction::URem:
@@ -605,11 +608,11 @@ GenericValue ExecutionEngine::getConstantValue(const Constant *C) {
       case Type::FloatTyID:
         switch (CE->getOpcode()) {
           default: assert(0 && "Invalid float opcode"); abort();
-          case Instruction::Add:  
+          case Instruction::FAdd:
             GV.FloatVal = LHS.FloatVal + RHS.FloatVal; break;
-          case Instruction::Sub:  
+          case Instruction::FSub:
             GV.FloatVal = LHS.FloatVal - RHS.FloatVal; break;
-          case Instruction::Mul:  
+          case Instruction::FMul:
             GV.FloatVal = LHS.FloatVal * RHS.FloatVal; break;
           case Instruction::FDiv: 
             GV.FloatVal = LHS.FloatVal / RHS.FloatVal; break;
@@ -620,11 +623,11 @@ GenericValue ExecutionEngine::getConstantValue(const Constant *C) {
       case Type::DoubleTyID:
         switch (CE->getOpcode()) {
           default: assert(0 && "Invalid double opcode"); abort();
-          case Instruction::Add:  
+          case Instruction::FAdd:
             GV.DoubleVal = LHS.DoubleVal + RHS.DoubleVal; break;
-          case Instruction::Sub:  
+          case Instruction::FSub:
             GV.DoubleVal = LHS.DoubleVal - RHS.DoubleVal; break;
-          case Instruction::Mul:  
+          case Instruction::FMul:
             GV.DoubleVal = LHS.DoubleVal * RHS.DoubleVal; break;
           case Instruction::FDiv: 
             GV.DoubleVal = LHS.DoubleVal / RHS.DoubleVal; break;
@@ -638,15 +641,15 @@ GenericValue ExecutionEngine::getConstantValue(const Constant *C) {
         APFloat apfLHS = APFloat(LHS.IntVal);
         switch (CE->getOpcode()) {
           default: assert(0 && "Invalid long double opcode"); abort();
-          case Instruction::Add:  
+          case Instruction::FAdd:
             apfLHS.add(APFloat(RHS.IntVal), APFloat::rmNearestTiesToEven);
             GV.IntVal = apfLHS.bitcastToAPInt();
             break;
-          case Instruction::Sub:  
+          case Instruction::FSub:
             apfLHS.subtract(APFloat(RHS.IntVal), APFloat::rmNearestTiesToEven);
             GV.IntVal = apfLHS.bitcastToAPInt();
             break;
-          case Instruction::Mul:  
+          case Instruction::FMul:
             apfLHS.multiply(APFloat(RHS.IntVal), APFloat::rmNearestTiesToEven);
             GV.IntVal = apfLHS.bitcastToAPInt();
             break;