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Rewrite sqrt and powi to use anyfloat. By popular demand.

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llvm-svn: 42537
This commit is contained in:
Dale Johannesen 2007-10-02 17:43:59 +00:00
parent 24d20858a3
commit a4e3643cb3
5 changed files with 38 additions and 67 deletions
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14
include/llvm/Intrinsics.td
View File

@ -178,18 +178,8 @@ let Properties = [IntrWriteArgMem] in {
}
let Properties = [IntrNoMem] in {
def int_sqrt_f32 : Intrinsic<[llvm_float_ty, llvm_float_ty]>;
def int_sqrt_f64 : Intrinsic<[llvm_double_ty, llvm_double_ty]>;
def int_sqrt_f80 : Intrinsic<[llvm_f80_ty, llvm_f80_ty]>;
def int_sqrt_f128 : Intrinsic<[llvm_f128_ty, llvm_f128_ty]>;
def int_sqrt_ppcf128 : Intrinsic<[llvm_ppcf128_ty, llvm_ppcf128_ty]>;
def int_powi_f32 : Intrinsic<[llvm_float_ty, llvm_float_ty, llvm_i32_ty]>;
def int_powi_f64 : Intrinsic<[llvm_double_ty, llvm_double_ty, llvm_i32_ty]>;
def int_powi_f80 : Intrinsic<[llvm_f80_ty, llvm_f80_ty, llvm_i32_ty]>;
def int_powi_f128 : Intrinsic<[llvm_f128_ty, llvm_f128_ty, llvm_i32_ty]>;
def int_powi_ppcf128 : Intrinsic<[llvm_ppcf128_ty, llvm_ppcf128_ty,
llvm_i32_ty]>;
def int_sqrt : Intrinsic<[llvm_anyfloat_ty, LLVMMatchType<0>]>;
def int_powi : Intrinsic<[llvm_anyfloat_ty, LLVMMatchType<0>, llvm_i32_ty]>;
}
// NOTE: these are internal interfaces.

16
lib/Analysis/ConstantFolding.cpp
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@ -329,16 +329,8 @@ Constant *llvm::ConstantFoldLoadThroughGEPConstantExpr(Constant *C,
bool
llvm::canConstantFoldCallTo(Function *F) {
switch (F->getIntrinsicID()) {
case Intrinsic::sqrt_f32:
case Intrinsic::sqrt_f64:
case Intrinsic::sqrt_f80:
case Intrinsic::sqrt_f128:
case Intrinsic::sqrt_ppcf128:
case Intrinsic::powi_f32:
case Intrinsic::powi_f64:
case Intrinsic::powi_f80:
case Intrinsic::powi_f128:
case Intrinsic::powi_ppcf128:
case Intrinsic::sqrt:
case Intrinsic::powi:
case Intrinsic::bswap:
case Intrinsic::ctpop:
case Intrinsic::ctlz:
@ -539,12 +531,12 @@ llvm::ConstantFoldCall(Function *F, Constant** Operands, unsigned NumOperands) {
}
} else if (NumOperands == 2) {
if (ConstantFP *Op1 = dyn_cast<ConstantFP>(Operands[0])) {
if (Ty!=Type::FloatTy && Ty!=Type::DoubleTy)
return 0;
double Op1V = Ty==Type::FloatTy ?
(double)Op1->getValueAPF().convertToFloat():
Op1->getValueAPF().convertToDouble();
if (ConstantFP *Op2 = dyn_cast<ConstantFP>(Operands[1])) {
if (Ty!=Type::FloatTy && Ty!=Type::DoubleTy)
return 0;
double Op2V = Ty==Type::FloatTy ?
(double)Op2->getValueAPF().convertToFloat():
Op2->getValueAPF().convertToDouble();

57
lib/CodeGen/IntrinsicLowering.cpp
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@ -99,14 +99,20 @@ void IntrinsicLowering::AddPrototypes(Module &M) {
PointerType::get(Type::Int8Ty), Type::Int32Ty,
TD.getIntPtrType(), (Type *)0);
break;
case Intrinsic::sqrt_f32:
case Intrinsic::sqrt_f64:
if(I->arg_begin()->getType() == Type::FloatTy)
case Intrinsic::sqrt:
switch((int)I->arg_begin()->getType()->getTypeID()) {
case Type::FloatTyID:
EnsureFunctionExists(M, "sqrtf", I->arg_begin(), I->arg_end(),
Type::FloatTy);
else
case Type::DoubleTyID:
EnsureFunctionExists(M, "sqrt", I->arg_begin(), I->arg_end(),
Type::DoubleTy);
case Type::X86_FP80TyID:
case Type::FP128TyID:
case Type::PPC_FP128TyID:
EnsureFunctionExists(M, "sqrtl", I->arg_begin(), I->arg_end(),
I->arg_begin()->getType());
}
break;
}
}
@ -782,34 +788,27 @@ void IntrinsicLowering::LowerIntrinsicCall(CallInst *CI) {
MemsetFCache);
break;
}
case Intrinsic::sqrt_f32: {
case Intrinsic::sqrt: {
static Constant *sqrtfFCache = 0;
ReplaceCallWith("sqrtf", CI, CI->op_begin()+1, CI->op_end(),
Type::FloatTy, sqrtfFCache);
break;
}
case Intrinsic::sqrt_f64: {
static Constant *sqrtFCache = 0;
ReplaceCallWith("sqrt", CI, CI->op_begin()+1, CI->op_end(),
static Constant *sqrtLDCache = 0;
switch (CI->getOperand(1)->getType()->getTypeID()) {
default: assert(0 && "Invalid type in sqrt"); abort();
case Type::FloatTyID:
ReplaceCallWith("sqrtf", CI, CI->op_begin()+1, CI->op_end(),
Type::FloatTy, sqrtfFCache);
break;
case Type::DoubleTyID:
ReplaceCallWith("sqrt", CI, CI->op_begin()+1, CI->op_end(),
Type::DoubleTy, sqrtFCache);
break;
}
case Intrinsic::sqrt_f80: {
static Constant *sqrtF80Cache = 0;
ReplaceCallWith("sqrtl", CI, CI->op_begin()+1, CI->op_end(),
Type::X86_FP80Ty, sqrtF80Cache);
break;
}
case Intrinsic::sqrt_f128: {
static Constant *sqrtF128Cache = 0;
ReplaceCallWith("sqrtl", CI, CI->op_begin()+1, CI->op_end(),
Type::FP128Ty, sqrtF128Cache);
break;
}
case Intrinsic::sqrt_ppcf128: {
static Constant *sqrtppcF128Cache = 0;
ReplaceCallWith("sqrtl", CI, CI->op_begin()+1, CI->op_end(),
Type::PPC_FP128Ty, sqrtppcF128Cache);
break;
case Type::X86_FP80TyID:
case Type::FP128TyID:
case Type::PPC_FP128TyID:
ReplaceCallWith("sqrtl", CI, CI->op_begin()+1, CI->op_end(),
CI->getOperand(1)->getType(), sqrtLDCache);
break;
}
break;
}
}

12
lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
View File

@ -2796,20 +2796,12 @@ SelectionDAGLowering::visitIntrinsicCall(CallInst &I, unsigned Intrinsic) {
return 0;
}
case Intrinsic::sqrt_f32:
case Intrinsic::sqrt_f64:
case Intrinsic::sqrt_f80:
case Intrinsic::sqrt_f128:
case Intrinsic::sqrt_ppcf128:
case Intrinsic::sqrt:
setValue(&I, DAG.getNode(ISD::FSQRT,
getValue(I.getOperand(1)).getValueType(),
getValue(I.getOperand(1))));
return 0;
case Intrinsic::powi_f32:
case Intrinsic::powi_f64:
case Intrinsic::powi_f80:
case Intrinsic::powi_f128:
case Intrinsic::powi_ppcf128:
case Intrinsic::powi:
setValue(&I, DAG.getNode(ISD::FPOWI,
getValue(I.getOperand(1)).getValueType(),
getValue(I.getOperand(1)),

6
lib/Target/CBackend/CBackend.cpp
View File

@ -2417,8 +2417,7 @@ void CWriter::lowerIntrinsics(Function &F) {
case Intrinsic::longjmp:
case Intrinsic::prefetch:
case Intrinsic::dbg_stoppoint:
case Intrinsic::powi_f32:
case Intrinsic::powi_f64:
case Intrinsic::powi:
// We directly implement these intrinsics
break;
default:
@ -2537,8 +2536,7 @@ void CWriter::visitCallInst(CallInst &I) {
writeOperand(I.getOperand(1));
Out << ')';
return;
case Intrinsic::powi_f32:
case Intrinsic::powi_f64:
case Intrinsic::powi:
Out << "__builtin_powi(";
writeOperand(I.getOperand(1));
Out << ", ";