For PR950:

Three changes:
1. Convert signed integer types to signless versions.
2. Implement the @sext and @zext parameter attributes. Previously the
   type of an function parameter was used to determine whether it should
   be sign extended or zero extended before the call. This information is
   now communicated via the function type's parameter attributes.
3. The interface to LowerCallTo had to be changed in order to accommodate
   the parameter attribute information. Although it would have been
   convenient to pass in the FunctionType itself, there isn't always one
   present in the caller. Consequently, a signedness indication for the
   result type and for each parameter was provided for in the interface
   to this method. All implementations were changed to make the adjustment
   necessary.

llvm-svn: 32788

1 files changed, 30 insertions, 30 deletions

diff --git a/llvm/lib/CodeGen/IntrinsicLowering.cpp b/llvm/lib/CodeGen/IntrinsicLowering.cpp
index d6c79ad19ba..41d48d947e5 100644
--- a/llvm/lib/CodeGen/IntrinsicLowering.cpp
+++ b/llvm/lib/CodeGen/IntrinsicLowering.cpp
@@ -95,7 +95,7 @@ void IntrinsicLowering::AddPrototypes(Module &M) {
       default: break;
       case Intrinsic::setjmp:
         EnsureFunctionExists(M, "setjmp", I->arg_begin(), I->arg_end(),
-                             Type::IntTy);
+                             Type::Int32Ty);
         break;
       case Intrinsic::longjmp:
         EnsureFunctionExists(M, "longjmp", I->arg_begin(), I->arg_end(),
@@ -117,9 +117,9 @@ void IntrinsicLowering::AddPrototypes(Module &M) {
         break;
       case Intrinsic::memset_i32:
       case Intrinsic::memset_i64:
-        M.getOrInsertFunction("memset", PointerType::get(Type::SByteTy),
-                              PointerType::get(Type::SByteTy),
-                              Type::IntTy, (--(--I->arg_end()))->getType(),
+        M.getOrInsertFunction("memset", PointerType::get(Type::Int8Ty),
+                              PointerType::get(Type::Int8Ty),
+                              Type::Int32Ty, (--(--I->arg_end()))->getType(),
                               (Type *)0);
         break;
       case Intrinsic::isunordered_f32:
@@ -150,26 +150,26 @@ static Value *LowerBSWAP(Value *V, Instruction *IP) {
   default: assert(0 && "Unhandled type size of value to byteswap!");
   case 16: {
     Value *Tmp1 = new ShiftInst(Instruction::Shl, V,
-                                ConstantInt::get(Type::UByteTy,8),"bswap.2",IP);
+                                ConstantInt::get(Type::Int8Ty,8),"bswap.2",IP);
     Value *Tmp2 = new ShiftInst(Instruction::LShr, V,
-                                ConstantInt::get(Type::UByteTy,8),"bswap.1",IP);
+                                ConstantInt::get(Type::Int8Ty,8),"bswap.1",IP);
     V = BinaryOperator::createOr(Tmp1, Tmp2, "bswap.i16", IP);
     break;
   }
   case 32: {
     Value *Tmp4 = new ShiftInst(Instruction::Shl, V,
-                              ConstantInt::get(Type::UByteTy,24),"bswap.4", IP);
+                              ConstantInt::get(Type::Int8Ty,24),"bswap.4", IP);
     Value *Tmp3 = new ShiftInst(Instruction::Shl, V,
-                              ConstantInt::get(Type::UByteTy,8),"bswap.3",IP);
+                              ConstantInt::get(Type::Int8Ty,8),"bswap.3",IP);
     Value *Tmp2 = new ShiftInst(Instruction::LShr, V,
-                              ConstantInt::get(Type::UByteTy,8),"bswap.2",IP);
+                              ConstantInt::get(Type::Int8Ty,8),"bswap.2",IP);
     Value *Tmp1 = new ShiftInst(Instruction::LShr, V,
-                              ConstantInt::get(Type::UByteTy,24),"bswap.1", IP);
+                              ConstantInt::get(Type::Int8Ty,24),"bswap.1", IP);
     Tmp3 = BinaryOperator::createAnd(Tmp3, 
-                                     ConstantInt::get(Type::UIntTy, 0xFF0000),
+                                     ConstantInt::get(Type::Int32Ty, 0xFF0000),
                                      "bswap.and3", IP);
     Tmp2 = BinaryOperator::createAnd(Tmp2, 
-                                     ConstantInt::get(Type::UIntTy, 0xFF00),
+                                     ConstantInt::get(Type::Int32Ty, 0xFF00),
                                      "bswap.and2", IP);
     Tmp4 = BinaryOperator::createOr(Tmp4, Tmp3, "bswap.or1", IP);
     Tmp2 = BinaryOperator::createOr(Tmp2, Tmp1, "bswap.or2", IP);
@@ -178,39 +178,39 @@ static Value *LowerBSWAP(Value *V, Instruction *IP) {
   }
   case 64: {
     Value *Tmp8 = new ShiftInst(Instruction::Shl, V,
-                              ConstantInt::get(Type::UByteTy,56),"bswap.8", IP);
+                              ConstantInt::get(Type::Int8Ty,56),"bswap.8", IP);
     Value *Tmp7 = new ShiftInst(Instruction::Shl, V,
-                              ConstantInt::get(Type::UByteTy,40),"bswap.7", IP);
+                              ConstantInt::get(Type::Int8Ty,40),"bswap.7", IP);
     Value *Tmp6 = new ShiftInst(Instruction::Shl, V,
-                              ConstantInt::get(Type::UByteTy,24),"bswap.6", IP);
+                              ConstantInt::get(Type::Int8Ty,24),"bswap.6", IP);
     Value *Tmp5 = new ShiftInst(Instruction::Shl, V,
-                              ConstantInt::get(Type::UByteTy,8),"bswap.5", IP);
+                              ConstantInt::get(Type::Int8Ty,8),"bswap.5", IP);
     Value* Tmp4 = new ShiftInst(Instruction::LShr, V,
-                              ConstantInt::get(Type::UByteTy,8),"bswap.4", IP);
+                              ConstantInt::get(Type::Int8Ty,8),"bswap.4", IP);
     Value* Tmp3 = new ShiftInst(Instruction::LShr, V,
-                              ConstantInt::get(Type::UByteTy,24),"bswap.3", IP);
+                              ConstantInt::get(Type::Int8Ty,24),"bswap.3", IP);
     Value* Tmp2 = new ShiftInst(Instruction::LShr, V,
-                              ConstantInt::get(Type::UByteTy,40),"bswap.2", IP);
+                              ConstantInt::get(Type::Int8Ty,40),"bswap.2", IP);
     Value* Tmp1 = new ShiftInst(Instruction::LShr, V,
-                              ConstantInt::get(Type::UByteTy,56),"bswap.1", IP);
+                              ConstantInt::get(Type::Int8Ty,56),"bswap.1", IP);
     Tmp7 = BinaryOperator::createAnd(Tmp7,
-                             ConstantInt::get(Type::ULongTy, 
+                             ConstantInt::get(Type::Int64Ty, 
                                0xFF000000000000ULL),
                              "bswap.and7", IP);
     Tmp6 = BinaryOperator::createAnd(Tmp6,
-                             ConstantInt::get(Type::ULongTy, 0xFF0000000000ULL),
+                             ConstantInt::get(Type::Int64Ty, 0xFF0000000000ULL),
                              "bswap.and6", IP);
     Tmp5 = BinaryOperator::createAnd(Tmp5,
-                             ConstantInt::get(Type::ULongTy, 0xFF00000000ULL),
+                             ConstantInt::get(Type::Int64Ty, 0xFF00000000ULL),
                              "bswap.and5", IP);
     Tmp4 = BinaryOperator::createAnd(Tmp4,
-                             ConstantInt::get(Type::ULongTy, 0xFF000000ULL),
+                             ConstantInt::get(Type::Int64Ty, 0xFF000000ULL),
                              "bswap.and4", IP);
     Tmp3 = BinaryOperator::createAnd(Tmp3,
-                             ConstantInt::get(Type::ULongTy, 0xFF0000ULL),
+                             ConstantInt::get(Type::Int64Ty, 0xFF0000ULL),
                              "bswap.and3", IP);
     Tmp2 = BinaryOperator::createAnd(Tmp2,
-                             ConstantInt::get(Type::ULongTy, 0xFF00ULL),
+                             ConstantInt::get(Type::Int64Ty, 0xFF00ULL),
                              "bswap.and2", IP);
     Tmp8 = BinaryOperator::createOr(Tmp8, Tmp7, "bswap.or1", IP);
     Tmp6 = BinaryOperator::createOr(Tmp6, Tmp5, "bswap.or2", IP);
@@ -242,7 +242,7 @@ static Value *LowerCTPOP(Value *V, Instruction *IP) {
     Value *MaskCst = ConstantInt::get(V->getType(), MaskValues[ct]);
     Value *LHS = BinaryOperator::createAnd(V, MaskCst, "cppop.and1", IP);
     Value *VShift = new ShiftInst(Instruction::LShr, V,
-                      ConstantInt::get(Type::UByteTy, i), "ctpop.sh", IP);
+                      ConstantInt::get(Type::Int8Ty, i), "ctpop.sh", IP);
     Value *RHS = BinaryOperator::createAnd(VShift, MaskCst, "cppop.and2", IP);
     V = BinaryOperator::createAdd(LHS, RHS, "ctpop.step", IP);
   }
@@ -256,7 +256,7 @@ static Value *LowerCTLZ(Value *V, Instruction *IP) {
 
   unsigned BitSize = V->getType()->getPrimitiveSizeInBits();
   for (unsigned i = 1; i != BitSize; i <<= 1) {
-    Value *ShVal = ConstantInt::get(Type::UByteTy, i);
+    Value *ShVal = ConstantInt::get(Type::Int8Ty, i);
     ShVal = new ShiftInst(Instruction::LShr, V, ShVal, "ctlz.sh", IP);
     V = BinaryOperator::createOr(V, ShVal, "ctlz.step", IP);
   }
@@ -289,7 +289,7 @@ void IntrinsicLowering::LowerIntrinsicCall(CallInst *CI) {
     static Function *SetjmpFCache = 0;
     static const unsigned castOpcodes[] = { Instruction::BitCast };
     Value *V = ReplaceCallWith("setjmp", CI, CI->op_begin()+1, CI->op_end(),
-                               castOpcodes, Type::IntTy, SetjmpFCache);
+                               castOpcodes, Type::Int32Ty, SetjmpFCache);
     if (CI->getType() != Type::VoidTy)
       CI->replaceAllUsesWith(V);
     break;
@@ -381,7 +381,7 @@ void IntrinsicLowering::LowerIntrinsicCall(CallInst *CI) {
   case Intrinsic::readcyclecounter: {
     cerr << "WARNING: this target does not support the llvm.readcyclecoun"
          << "ter intrinsic.  It is being lowered to a constant 0\n";
-    CI->replaceAllUsesWith(ConstantInt::get(Type::ULongTy, 0));
+    CI->replaceAllUsesWith(ConstantInt::get(Type::Int64Ty, 0));
     break;
   }