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llvm-project/clang/lib/CodeGen/CGBuiltin.cpp

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//===---- CGBuiltin.cpp - Emit LLVM Code for builtins ---------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This contains code to emit Builtin calls as LLVM code.
//
//===----------------------------------------------------------------------===//
#include "CodeGenFunction.h"
#include "CodeGenModule.h"
#include "clang/Basic/TargetInfo.h"
#include "clang/AST/APValue.h"
#include "clang/AST/ASTContext.h"
#include "clang/AST/Decl.h"
#include "clang/AST/TargetBuiltins.h"
#include "llvm/Intrinsics.h"
using namespace clang;
using namespace CodeGen;
using namespace llvm;
/// Utility to insert an atomic instruction based Instrinsic::ID and
// the expression node
static RValue EmitBinaryAtomic(CodeGenFunction& CFG,
Intrinsic::ID Id, const CallExpr *E) {
const llvm::Type *ResType[2];
ResType[0] = CFG.ConvertType(E->getType());
ResType[1] = CFG.ConvertType(E->getArg(0)->getType());
Value *AtomF = CFG.CGM.getIntrinsic(Id, ResType, 2);
return RValue::get(CFG.Builder.CreateCall2(AtomF,
CFG.EmitScalarExpr(E->getArg(0)),
CFG.EmitScalarExpr(E->getArg(1))));
}
RValue CodeGenFunction::EmitBuiltinExpr(unsigned BuiltinID, const CallExpr *E) {
// See if we can constant fold this builtin. If so, don't emit it at all.
Expr::EvalResult Result;
if (E->Evaluate(Result, CGM.getContext())) {
if (Result.Val.isInt())
return RValue::get(llvm::ConstantInt::get(Result.Val.getInt()));
else if (Result.Val.isFloat())
return RValue::get(llvm::ConstantFP::get(Result.Val.getFloat()));
}
switch (BuiltinID) {
default: break; // Handle intrinsics and libm functions below.
case Builtin::BI__builtin___CFStringMakeConstantString:
return RValue::get(CGM.EmitConstantExpr(E, 0));
case Builtin::BI__builtin_stdarg_start:
case Builtin::BI__builtin_va_start:
case Builtin::BI__builtin_va_end: {
Value *ArgValue = EmitVAListRef(E->getArg(0));
const llvm::Type *DestType =
llvm::PointerType::getUnqual(llvm::Type::Int8Ty);
if (ArgValue->getType() != DestType)
ArgValue = Builder.CreateBitCast(ArgValue, DestType,
ArgValue->getNameStart());
Intrinsic::ID inst = (BuiltinID == Builtin::BI__builtin_va_end) ?
Intrinsic::vaend : Intrinsic::vastart;
return RValue::get(Builder.CreateCall(CGM.getIntrinsic(inst), ArgValue));
}
case Builtin::BI__builtin_va_copy: {
Value *DstPtr = EmitVAListRef(E->getArg(0));
Value *SrcPtr = EmitVAListRef(E->getArg(1));
const llvm::Type *Type =
llvm::PointerType::getUnqual(llvm::Type::Int8Ty);
DstPtr = Builder.CreateBitCast(DstPtr, Type);
SrcPtr = Builder.CreateBitCast(SrcPtr, Type);
return RValue::get(Builder.CreateCall2(CGM.getIntrinsic(Intrinsic::vacopy),
DstPtr, SrcPtr));
}
case Builtin::BI__builtin_abs: {
Value *ArgValue = EmitScalarExpr(E->getArg(0));
Value *NegOp = Builder.CreateNeg(ArgValue, "neg");
Value *CmpResult =
Builder.CreateICmpSGE(ArgValue, Constant::getNullValue(ArgValue->getType()),
"abscond");
Value *Result =
Builder.CreateSelect(CmpResult, ArgValue, NegOp, "abs");
return RValue::get(Result);
}
case Builtin::BI__builtin_ctz:
case Builtin::BI__builtin_ctzl:
case Builtin::BI__builtin_ctzll: {
Value *ArgValue = EmitScalarExpr(E->getArg(0));
const llvm::Type *ArgType = ArgValue->getType();
Value *F = CGM.getIntrinsic(Intrinsic::cttz, &ArgType, 1);
const llvm::Type *ResultType = ConvertType(E->getType());
Value *Result = Builder.CreateCall(F, ArgValue, "tmp");
if (Result->getType() != ResultType)
Result = Builder.CreateIntCast(Result, ResultType, "cast");
return RValue::get(Result);
}
case Builtin::BI__builtin_clz:
case Builtin::BI__builtin_clzl:
case Builtin::BI__builtin_clzll: {
Value *ArgValue = EmitScalarExpr(E->getArg(0));
const llvm::Type *ArgType = ArgValue->getType();
Value *F = CGM.getIntrinsic(Intrinsic::ctlz, &ArgType, 1);
const llvm::Type *ResultType = ConvertType(E->getType());
Value *Result = Builder.CreateCall(F, ArgValue, "tmp");
if (Result->getType() != ResultType)
Result = Builder.CreateIntCast(Result, ResultType, "cast");
return RValue::get(Result);
}
case Builtin::BI__builtin_ffs:
case Builtin::BI__builtin_ffsl:
case Builtin::BI__builtin_ffsll: {
// ffs(x) -> x ? cttz(x) + 1 : 0
Value *ArgValue = EmitScalarExpr(E->getArg(0));
const llvm::Type *ArgType = ArgValue->getType();
Value *F = CGM.getIntrinsic(Intrinsic::cttz, &ArgType, 1);
const llvm::Type *ResultType = ConvertType(E->getType());
Value *Tmp = Builder.CreateAdd(Builder.CreateCall(F, ArgValue, "tmp"),
ConstantInt::get(ArgType, 1), "tmp");
Value *Zero = llvm::Constant::getNullValue(ArgType);
Value *IsZero = Builder.CreateICmpEQ(ArgValue, Zero, "iszero");
Value *Result = Builder.CreateSelect(IsZero, Zero, Tmp, "ffs");
if (Result->getType() != ResultType)
Result = Builder.CreateIntCast(Result, ResultType, "cast");
return RValue::get(Result);
}
case Builtin::BI__builtin_parity:
case Builtin::BI__builtin_parityl:
case Builtin::BI__builtin_parityll: {
// parity(x) -> ctpop(x) & 1
Value *ArgValue = EmitScalarExpr(E->getArg(0));
const llvm::Type *ArgType = ArgValue->getType();
Value *F = CGM.getIntrinsic(Intrinsic::ctpop, &ArgType, 1);
const llvm::Type *ResultType = ConvertType(E->getType());
Value *Tmp = Builder.CreateCall(F, ArgValue, "tmp");
Value *Result = Builder.CreateAnd(Tmp, ConstantInt::get(ArgType, 1),
"tmp");
if (Result->getType() != ResultType)
Result = Builder.CreateIntCast(Result, ResultType, "cast");
return RValue::get(Result);
}
case Builtin::BI__builtin_popcount:
case Builtin::BI__builtin_popcountl:
case Builtin::BI__builtin_popcountll: {
Value *ArgValue = EmitScalarExpr(E->getArg(0));
const llvm::Type *ArgType = ArgValue->getType();
Value *F = CGM.getIntrinsic(Intrinsic::ctpop, &ArgType, 1);
const llvm::Type *ResultType = ConvertType(E->getType());
Value *Result = Builder.CreateCall(F, ArgValue, "tmp");
if (Result->getType() != ResultType)
Result = Builder.CreateIntCast(Result, ResultType, "cast");
return RValue::get(Result);
}
case Builtin::BI__builtin_expect:
// FIXME: pass expect through to LLVM
return RValue::get(EmitScalarExpr(E->getArg(0)));
case Builtin::BI__builtin_bswap32:
case Builtin::BI__builtin_bswap64: {
Value *ArgValue = EmitScalarExpr(E->getArg(0));
const llvm::Type *ArgType = ArgValue->getType();
Value *F = CGM.getIntrinsic(Intrinsic::bswap, &ArgType, 1);
return RValue::get(Builder.CreateCall(F, ArgValue, "tmp"));
}
case Builtin::BI__builtin_object_size: {
// FIXME: Implement. For now we just always fail and pretend we
// don't know the object size.
llvm::APSInt TypeArg =
E->getArg(1)->getIntegerConstantExprValue(CGM.getContext());
const llvm::Type *ResType = ConvertType(E->getType());
// bool UseSubObject = TypeArg.getZExtValue() & 1;
bool UseMinimum = TypeArg.getZExtValue() & 2;
return RValue::get(ConstantInt::get(ResType, UseMinimum ? 0 : -1LL));
}
case Builtin::BI__builtin_prefetch: {
Value *Locality, *RW, *Address = EmitScalarExpr(E->getArg(0));
// FIXME: Technically these constants should of type 'int', yes?
RW = (E->getNumArgs() > 1) ? EmitScalarExpr(E->getArg(1)) :
ConstantInt::get(llvm::Type::Int32Ty, 0);
Locality = (E->getNumArgs() > 2) ? EmitScalarExpr(E->getArg(2)) :
ConstantInt::get(llvm::Type::Int32Ty, 3);
Value *F = CGM.getIntrinsic(Intrinsic::prefetch, 0, 0);
return RValue::get(Builder.CreateCall3(F, Address, RW, Locality));
}
case Builtin::BI__builtin_trap: {
Value *F = CGM.getIntrinsic(Intrinsic::trap, 0, 0);
return RValue::get(Builder.CreateCall(F));
}
case Builtin::BI__builtin_powi:
case Builtin::BI__builtin_powif:
case Builtin::BI__builtin_powil: {
Value *Base = EmitScalarExpr(E->getArg(0));
Value *Exponent = EmitScalarExpr(E->getArg(1));
const llvm::Type *ArgType = Base->getType();
Value *F = CGM.getIntrinsic(Intrinsic::powi, &ArgType, 1);
return RValue::get(Builder.CreateCall2(F, Base, Exponent, "tmp"));
}
case Builtin::BI__builtin_isgreater:
case Builtin::BI__builtin_isgreaterequal:
case Builtin::BI__builtin_isless:
case Builtin::BI__builtin_islessequal:
case Builtin::BI__builtin_islessgreater:
case Builtin::BI__builtin_isunordered: {
// Ordered comparisons: we know the arguments to these are matching scalar
// floating point values.
Value *LHS = EmitScalarExpr(E->getArg(0));
Value *RHS = EmitScalarExpr(E->getArg(1));
switch (BuiltinID) {
default: assert(0 && "Unknown ordered comparison");
case Builtin::BI__builtin_isgreater:
LHS = Builder.CreateFCmpOGT(LHS, RHS, "cmp");
break;
case Builtin::BI__builtin_isgreaterequal:
LHS = Builder.CreateFCmpOGE(LHS, RHS, "cmp");
break;
case Builtin::BI__builtin_isless:
LHS = Builder.CreateFCmpOLT(LHS, RHS, "cmp");
break;
case Builtin::BI__builtin_islessequal:
LHS = Builder.CreateFCmpOLE(LHS, RHS, "cmp");
break;
case Builtin::BI__builtin_islessgreater:
LHS = Builder.CreateFCmpONE(LHS, RHS, "cmp");
break;
case Builtin::BI__builtin_isunordered:
LHS = Builder.CreateFCmpUNO(LHS, RHS, "cmp");
break;
}
// ZExt bool to int type.
return RValue::get(Builder.CreateZExt(LHS, ConvertType(E->getType()),
"tmp"));
}
case Builtin::BI__builtin_alloca: {
// FIXME: LLVM IR Should allow alloca with an i64 size!
Value *Size = EmitScalarExpr(E->getArg(0));
Size = Builder.CreateIntCast(Size, llvm::Type::Int32Ty, false, "tmp");
return RValue::get(Builder.CreateAlloca(llvm::Type::Int8Ty, Size, "tmp"));
}
case Builtin::BI__builtin_bzero: {
Value *Address = EmitScalarExpr(E->getArg(0));
Builder.CreateCall4(CGM.getMemSetFn(), Address,
llvm::ConstantInt::get(llvm::Type::Int8Ty, 0),
EmitScalarExpr(E->getArg(1)),
llvm::ConstantInt::get(llvm::Type::Int32Ty, 1));
return RValue::get(Address);
}
case Builtin::BI__builtin_memcpy: {
Value *Address = EmitScalarExpr(E->getArg(0));
Builder.CreateCall4(CGM.getMemCpyFn(), Address,
EmitScalarExpr(E->getArg(1)),
EmitScalarExpr(E->getArg(2)),
llvm::ConstantInt::get(llvm::Type::Int32Ty, 1));
return RValue::get(Address);
}
case Builtin::BI__builtin_memmove: {
Value *Address = EmitScalarExpr(E->getArg(0));
Builder.CreateCall4(CGM.getMemMoveFn(), Address,
EmitScalarExpr(E->getArg(1)),
EmitScalarExpr(E->getArg(2)),
llvm::ConstantInt::get(llvm::Type::Int32Ty, 1));
return RValue::get(Address);
}
case Builtin::BI__builtin_memset: {
Value *Address = EmitScalarExpr(E->getArg(0));
Builder.CreateCall4(CGM.getMemSetFn(), Address,
EmitScalarExpr(E->getArg(1)),
EmitScalarExpr(E->getArg(2)),
llvm::ConstantInt::get(llvm::Type::Int32Ty, 1));
return RValue::get(Address);
}
case Builtin::BI__builtin_return_address: {
Value *F = CGM.getIntrinsic(Intrinsic::returnaddress, 0, 0);
return RValue::get(Builder.CreateCall(F, EmitScalarExpr(E->getArg(0))));
}
case Builtin::BI__builtin_frame_address: {
Value *F = CGM.getIntrinsic(Intrinsic::frameaddress, 0, 0);
return RValue::get(Builder.CreateCall(F, EmitScalarExpr(E->getArg(0))));
}
case Builtin::BI__sync_fetch_and_add:
return EmitBinaryAtomic(*this, Intrinsic::atomic_load_add, E);
case Builtin::BI__sync_fetch_and_sub:
return EmitBinaryAtomic(*this, Intrinsic::atomic_load_sub, E);
case Builtin::BI__sync_fetch_and_min:
return EmitBinaryAtomic(*this, Intrinsic::atomic_load_min, E);
case Builtin::BI__sync_fetch_and_max:
return EmitBinaryAtomic(*this, Intrinsic::atomic_load_max, E);
case Builtin::BI__sync_fetch_and_umin:
return EmitBinaryAtomic(*this, Intrinsic::atomic_load_umin, E);
case Builtin::BI__sync_fetch_and_umax:
return EmitBinaryAtomic(*this, Intrinsic::atomic_load_umax, E);
case Builtin::BI__sync_fetch_and_and:
return EmitBinaryAtomic(*this, Intrinsic::atomic_load_and, E);
case Builtin::BI__sync_fetch_and_or:
return EmitBinaryAtomic(*this, Intrinsic::atomic_load_or, E);
case Builtin::BI__sync_fetch_and_xor:
return EmitBinaryAtomic(*this, Intrinsic::atomic_load_xor, E);
case Builtin::BI__sync_val_compare_and_swap: {
const llvm::Type *ResType[2];
ResType[0]= ConvertType(E->getType());
ResType[1] = ConvertType(E->getArg(0)->getType());
Value *AtomF = CGM.getIntrinsic(Intrinsic::atomic_cmp_swap, ResType, 2);
return RValue::get(Builder.CreateCall3(AtomF,
EmitScalarExpr(E->getArg(0)),
EmitScalarExpr(E->getArg(1)),
EmitScalarExpr(E->getArg(2))));
}
case Builtin::BI__sync_lock_test_and_set:
return EmitBinaryAtomic(*this, Intrinsic::atomic_swap, E);
}
// If this is an alias for a libm function (e.g. __builtin_sin) turn it into
// that function.
if (getContext().BuiltinInfo.isLibFunction(BuiltinID))
return EmitCallExpr(CGM.getBuiltinLibFunction(BuiltinID),
E->getCallee()->getType(), E->arg_begin(),
E->arg_end());
// See if we have a target specific intrinsic.
const char *Name = getContext().BuiltinInfo.GetName(BuiltinID);
Intrinsic::ID IntrinsicID =
Intrinsic::getIntrinsicForGCCBuiltin(Target.getTargetPrefix(), Name);
if (IntrinsicID != Intrinsic::not_intrinsic) {
SmallVector<Value*, 16> Args;
Function *F = CGM.getIntrinsic(IntrinsicID);
const llvm::FunctionType *FTy = F->getFunctionType();
for (unsigned i = 0, e = E->getNumArgs(); i != e; ++i) {
Value *ArgValue = EmitScalarExpr(E->getArg(i));
// If the intrinsic arg type is different from the builtin arg type
// we need to do a bit cast.
const llvm::Type *PTy = FTy->getParamType(i);
if (PTy != ArgValue->getType()) {
assert(PTy->canLosslesslyBitCastTo(FTy->getParamType(i)) &&
"Must be able to losslessly bit cast to param");
ArgValue = Builder.CreateBitCast(ArgValue, PTy);
}
Args.push_back(ArgValue);
}
Value *V = Builder.CreateCall(F, &Args[0], &Args[0] + Args.size());
QualType BuiltinRetType = E->getType();
const llvm::Type *RetTy = llvm::Type::VoidTy;
if (!BuiltinRetType->isVoidType()) RetTy = ConvertType(BuiltinRetType);
if (RetTy != V->getType()) {
assert(V->getType()->canLosslesslyBitCastTo(RetTy) &&
"Must be able to losslessly bit cast result type");
V = Builder.CreateBitCast(V, RetTy);
}
return RValue::get(V);
}
// See if we have a target specific builtin that needs to be lowered.
if (Value *V = EmitTargetBuiltinExpr(BuiltinID, E))
return RValue::get(V);
ErrorUnsupported(E, "builtin function");
// Unknown builtin, for now just dump it out and return undef.
if (hasAggregateLLVMType(E->getType()))
return RValue::getAggregate(CreateTempAlloca(ConvertType(E->getType())));
return RValue::get(UndefValue::get(ConvertType(E->getType())));
}
Value *CodeGenFunction::EmitTargetBuiltinExpr(unsigned BuiltinID,
const CallExpr *E) {
const char *TargetPrefix = Target.getTargetPrefix();
if (strcmp(TargetPrefix, "x86") == 0)
return EmitX86BuiltinExpr(BuiltinID, E);
else if (strcmp(TargetPrefix, "ppc") == 0)
return EmitPPCBuiltinExpr(BuiltinID, E);
return 0;
}
Value *CodeGenFunction::EmitX86BuiltinExpr(unsigned BuiltinID,
const CallExpr *E) {
llvm::SmallVector<Value*, 4> Ops;
for (unsigned i = 0, e = E->getNumArgs(); i != e; i++)
Ops.push_back(EmitScalarExpr(E->getArg(i)));
switch (BuiltinID) {
default: return 0;
case X86::BI__builtin_ia32_mulps:
return Builder.CreateMul(Ops[0], Ops[1], "mulps");
case X86::BI__builtin_ia32_mulpd:
return Builder.CreateMul(Ops[0], Ops[1], "mulpd");
case X86::BI__builtin_ia32_pand:
case X86::BI__builtin_ia32_pand128:
return Builder.CreateAnd(Ops[0], Ops[1], "pand");
case X86::BI__builtin_ia32_por:
case X86::BI__builtin_ia32_por128:
return Builder.CreateOr(Ops[0], Ops[1], "por");
case X86::BI__builtin_ia32_pxor:
case X86::BI__builtin_ia32_pxor128:
return Builder.CreateXor(Ops[0], Ops[1], "pxor");
case X86::BI__builtin_ia32_pandn:
case X86::BI__builtin_ia32_pandn128:
Ops[0] = Builder.CreateNot(Ops[0], "tmp");
return Builder.CreateAnd(Ops[0], Ops[1], "pandn");
case X86::BI__builtin_ia32_paddb:
case X86::BI__builtin_ia32_paddb128:
case X86::BI__builtin_ia32_paddd:
case X86::BI__builtin_ia32_paddd128:
case X86::BI__builtin_ia32_paddq:
case X86::BI__builtin_ia32_paddq128:
case X86::BI__builtin_ia32_paddw:
case X86::BI__builtin_ia32_paddw128:
case X86::BI__builtin_ia32_addps:
case X86::BI__builtin_ia32_addpd:
return Builder.CreateAdd(Ops[0], Ops[1], "add");
case X86::BI__builtin_ia32_psubb:
case X86::BI__builtin_ia32_psubb128:
case X86::BI__builtin_ia32_psubd:
case X86::BI__builtin_ia32_psubd128:
case X86::BI__builtin_ia32_psubq:
case X86::BI__builtin_ia32_psubq128:
case X86::BI__builtin_ia32_psubw:
case X86::BI__builtin_ia32_psubw128:
case X86::BI__builtin_ia32_subps:
case X86::BI__builtin_ia32_subpd:
return Builder.CreateSub(Ops[0], Ops[1], "sub");
case X86::BI__builtin_ia32_divps:
return Builder.CreateFDiv(Ops[0], Ops[1], "divps");
case X86::BI__builtin_ia32_divpd:
return Builder.CreateFDiv(Ops[0], Ops[1], "divpd");
case X86::BI__builtin_ia32_pmullw:
case X86::BI__builtin_ia32_pmullw128:
return Builder.CreateMul(Ops[0], Ops[1], "pmul");
case X86::BI__builtin_ia32_punpckhbw:
return EmitShuffleVector(Ops[0], Ops[1], 4, 12, 5, 13, 6, 14, 7, 15,
"punpckhbw");
case X86::BI__builtin_ia32_punpckhbw128:
return EmitShuffleVector(Ops[0], Ops[1], 8, 24, 9, 25, 10, 26, 11, 27,
12, 28, 13, 29, 14, 30, 15, 31,
"punpckhbw");
case X86::BI__builtin_ia32_punpckhwd:
return EmitShuffleVector(Ops[0], Ops[1], 2, 6, 3, 7, "punpckhwd");
case X86::BI__builtin_ia32_punpckhwd128:
return EmitShuffleVector(Ops[0], Ops[1], 4, 12, 5, 13, 6, 14, 7, 15,
"punpckhwd");
case X86::BI__builtin_ia32_punpckhdq:
return EmitShuffleVector(Ops[0], Ops[1], 1, 3, "punpckhdq");
case X86::BI__builtin_ia32_punpckhdq128:
return EmitShuffleVector(Ops[0], Ops[1], 2, 6, 3, 7, "punpckhdq");
case X86::BI__builtin_ia32_punpckhqdq128:
return EmitShuffleVector(Ops[0], Ops[1], 1, 3, "punpckhqdq");
case X86::BI__builtin_ia32_punpcklbw:
return EmitShuffleVector(Ops[0], Ops[1], 0, 8, 1, 9, 2, 10, 3, 11,
"punpcklbw");
case X86::BI__builtin_ia32_punpcklwd:
return EmitShuffleVector(Ops[0], Ops[1], 0, 4, 1, 5, "punpcklwd");
case X86::BI__builtin_ia32_punpckldq:
return EmitShuffleVector(Ops[0], Ops[1], 0, 2, "punpckldq");
case X86::BI__builtin_ia32_punpckldq128:
return EmitShuffleVector(Ops[0], Ops[1], 0, 4, 1, 5, "punpckldq");
case X86::BI__builtin_ia32_punpcklqdq128:
return EmitShuffleVector(Ops[0], Ops[1], 0, 2, "punpcklqdq");
case X86::BI__builtin_ia32_pslldi128:
case X86::BI__builtin_ia32_psllqi128:
case X86::BI__builtin_ia32_psllwi128:
case X86::BI__builtin_ia32_psradi128:
case X86::BI__builtin_ia32_psrawi128:
case X86::BI__builtin_ia32_psrldi128:
case X86::BI__builtin_ia32_psrlqi128:
case X86::BI__builtin_ia32_psrlwi128: {
Ops[1] = Builder.CreateZExt(Ops[1], llvm::Type::Int64Ty, "zext");
const llvm::Type *Ty = llvm::VectorType::get(llvm::Type::Int64Ty, 2);
llvm::Value *Zero = llvm::ConstantInt::get(llvm::Type::Int32Ty, 0);
Ops[1] = Builder.CreateInsertElement(llvm::UndefValue::get(Ty),
Ops[1], Zero, "insert");
Ops[1] = Builder.CreateBitCast(Ops[1], Ops[0]->getType(), "bitcast");
const char *name = 0;
Intrinsic::ID ID = Intrinsic::not_intrinsic;
switch (BuiltinID) {
default: assert(0 && "Unsupported shift intrinsic!");
case X86::BI__builtin_ia32_pslldi128:
name = "pslldi";
ID = Intrinsic::x86_sse2_psll_d;
break;
case X86::BI__builtin_ia32_psllqi128:
name = "psllqi";
ID = Intrinsic::x86_sse2_psll_q;
break;
case X86::BI__builtin_ia32_psllwi128:
name = "psllwi";
ID = Intrinsic::x86_sse2_psll_w;
break;
case X86::BI__builtin_ia32_psradi128:
name = "psradi";
ID = Intrinsic::x86_sse2_psra_d;
break;
case X86::BI__builtin_ia32_psrawi128:
name = "psrawi";
ID = Intrinsic::x86_sse2_psra_w;
break;
case X86::BI__builtin_ia32_psrldi128:
name = "psrldi";
ID = Intrinsic::x86_sse2_psrl_d;
break;
case X86::BI__builtin_ia32_psrlqi128:
name = "psrlqi";
ID = Intrinsic::x86_sse2_psrl_q;
break;
case X86::BI__builtin_ia32_psrlwi128:
name = "psrlwi";
ID = Intrinsic::x86_sse2_psrl_w;
break;
}
llvm::Function *F = CGM.getIntrinsic(ID);
return Builder.CreateCall(F, &Ops[0], &Ops[0] + Ops.size(), name);
}
case X86::BI__builtin_ia32_pslldi:
case X86::BI__builtin_ia32_psllqi:
case X86::BI__builtin_ia32_psllwi:
case X86::BI__builtin_ia32_psradi:
case X86::BI__builtin_ia32_psrawi:
case X86::BI__builtin_ia32_psrldi:
case X86::BI__builtin_ia32_psrlqi:
case X86::BI__builtin_ia32_psrlwi: {
Ops[1] = Builder.CreateZExt(Ops[1], llvm::Type::Int64Ty, "zext");
const llvm::Type *Ty = llvm::VectorType::get(llvm::Type::Int64Ty, 1);
Ops[1] = Builder.CreateBitCast(Ops[1], Ty, "bitcast");
const char *name = 0;
Intrinsic::ID ID = Intrinsic::not_intrinsic;
switch (BuiltinID) {
default: assert(0 && "Unsupported shift intrinsic!");
case X86::BI__builtin_ia32_pslldi:
name = "pslldi";
ID = Intrinsic::x86_mmx_psll_d;
break;
case X86::BI__builtin_ia32_psllqi:
name = "psllqi";
ID = Intrinsic::x86_mmx_psll_q;
break;
case X86::BI__builtin_ia32_psllwi:
name = "psllwi";
ID = Intrinsic::x86_mmx_psll_w;
break;
case X86::BI__builtin_ia32_psradi:
name = "psradi";
ID = Intrinsic::x86_mmx_psra_d;
break;
case X86::BI__builtin_ia32_psrawi:
name = "psrawi";
ID = Intrinsic::x86_mmx_psra_w;
break;
case X86::BI__builtin_ia32_psrldi:
name = "psrldi";
ID = Intrinsic::x86_mmx_psrl_d;
break;
case X86::BI__builtin_ia32_psrlqi:
name = "psrlqi";
ID = Intrinsic::x86_mmx_psrl_q;
break;
case X86::BI__builtin_ia32_psrlwi:
name = "psrlwi";
ID = Intrinsic::x86_mmx_psrl_w;
break;
}
llvm::Function *F = CGM.getIntrinsic(ID);
return Builder.CreateCall(F, &Ops[0], &Ops[0] + Ops.size(), name);
}
case X86::BI__builtin_ia32_pshufw: {
unsigned i = cast<ConstantInt>(Ops[1])->getZExtValue();
return EmitShuffleVector(Ops[0], Ops[0],
i & 0x3, (i & 0xc) >> 2,
(i & 0x30) >> 4, (i & 0xc0) >> 6,
"pshufw");
}
case X86::BI__builtin_ia32_pshuflw: {
unsigned i = cast<ConstantInt>(Ops[1])->getZExtValue();
return EmitShuffleVector(Ops[0], Ops[0],
i & 0x3, (i & 0xc) >> 2,
(i & 0x30) >> 4, (i & 0xc0) >> 6, 4, 5, 6, 7,
"pshuflw");
}
case X86::BI__builtin_ia32_pshufhw: {
unsigned i = cast<ConstantInt>(Ops[1])->getZExtValue();
return EmitShuffleVector(Ops[0], Ops[0], 0, 1, 2, 3,
4 + (i & 0x3), 4 + ((i & 0xc) >> 2),
4 + ((i & 0x30) >> 4), 4 + ((i & 0xc0) >> 6),
"pshufhw");
}
case X86::BI__builtin_ia32_pshufd: {
unsigned i = cast<ConstantInt>(Ops[1])->getZExtValue();
return EmitShuffleVector(Ops[0], Ops[0],
i & 0x3, (i & 0xc) >> 2,
(i & 0x30) >> 4, (i & 0xc0) >> 6,
"pshufd");
}
case X86::BI__builtin_ia32_vec_init_v4hi:
case X86::BI__builtin_ia32_vec_init_v8qi:
case X86::BI__builtin_ia32_vec_init_v2si:
return EmitVector(&Ops[0], Ops.size());
case X86::BI__builtin_ia32_vec_ext_v2si:
case X86::BI__builtin_ia32_vec_ext_v2di:
case X86::BI__builtin_ia32_vec_ext_v4sf:
case X86::BI__builtin_ia32_vec_ext_v4si:
case X86::BI__builtin_ia32_vec_ext_v8hi:
case X86::BI__builtin_ia32_vec_ext_v4hi:
case X86::BI__builtin_ia32_vec_ext_v2df:
return Builder.CreateExtractElement(Ops[0], Ops[1], "result");
case X86::BI__builtin_ia32_cmpordss:
case X86::BI__builtin_ia32_cmpordsd:
case X86::BI__builtin_ia32_cmpunordss:
case X86::BI__builtin_ia32_cmpunordsd:
case X86::BI__builtin_ia32_cmpeqss:
case X86::BI__builtin_ia32_cmpeqsd:
case X86::BI__builtin_ia32_cmpltss:
case X86::BI__builtin_ia32_cmpltsd:
case X86::BI__builtin_ia32_cmpless:
case X86::BI__builtin_ia32_cmplesd:
case X86::BI__builtin_ia32_cmpneqss:
case X86::BI__builtin_ia32_cmpneqsd:
case X86::BI__builtin_ia32_cmpnltss:
case X86::BI__builtin_ia32_cmpnltsd:
case X86::BI__builtin_ia32_cmpnless:
case X86::BI__builtin_ia32_cmpnlesd: {
unsigned i = 0;
const char *name = 0;
switch (BuiltinID) {
default: assert(0 && "Unknown compare builtin!");
case X86::BI__builtin_ia32_cmpeqss:
case X86::BI__builtin_ia32_cmpeqsd:
i = 0;
name = "cmpeq";
break;
case X86::BI__builtin_ia32_cmpltss:
case X86::BI__builtin_ia32_cmpltsd:
i = 1;
name = "cmplt";
break;
case X86::BI__builtin_ia32_cmpless:
case X86::BI__builtin_ia32_cmplesd:
i = 2;
name = "cmple";
break;
case X86::BI__builtin_ia32_cmpunordss:
case X86::BI__builtin_ia32_cmpunordsd:
i = 3;
name = "cmpunord";
break;
case X86::BI__builtin_ia32_cmpneqss:
case X86::BI__builtin_ia32_cmpneqsd:
i = 4;
name = "cmpneq";
break;
case X86::BI__builtin_ia32_cmpnltss:
case X86::BI__builtin_ia32_cmpnltsd:
i = 5;
name = "cmpntl";
break;
case X86::BI__builtin_ia32_cmpnless:
case X86::BI__builtin_ia32_cmpnlesd:
i = 6;
name = "cmpnle";
break;
case X86::BI__builtin_ia32_cmpordss:
case X86::BI__builtin_ia32_cmpordsd:
i = 7;
name = "cmpord";
break;
}
llvm::Function *F;
if (cast<llvm::VectorType>(Ops[0]->getType())->getElementType() ==
llvm::Type::FloatTy)
F = CGM.getIntrinsic(Intrinsic::x86_sse_cmp_ss);
else
F = CGM.getIntrinsic(Intrinsic::x86_sse2_cmp_sd);
Ops.push_back(llvm::ConstantInt::get(llvm::Type::Int8Ty, i));
return Builder.CreateCall(F, &Ops[0], &Ops[0] + Ops.size(), name);
}
case X86::BI__builtin_ia32_ldmxcsr: {
llvm::Type *PtrTy = llvm::PointerType::getUnqual(llvm::Type::Int8Ty);
Value *One = llvm::ConstantInt::get(llvm::Type::Int32Ty, 1);
Value *Tmp = Builder.CreateAlloca(llvm::Type::Int32Ty, One, "tmp");
Builder.CreateStore(Ops[0], Tmp);
return Builder.CreateCall(CGM.getIntrinsic(Intrinsic::x86_sse_ldmxcsr),
Builder.CreateBitCast(Tmp, PtrTy));
}
case X86::BI__builtin_ia32_stmxcsr: {
llvm::Type *PtrTy = llvm::PointerType::getUnqual(llvm::Type::Int8Ty);
Value *One = llvm::ConstantInt::get(llvm::Type::Int32Ty, 1);
Value *Tmp = Builder.CreateAlloca(llvm::Type::Int32Ty, One, "tmp");
One = Builder.CreateCall(CGM.getIntrinsic(Intrinsic::x86_sse_stmxcsr),
Builder.CreateBitCast(Tmp, PtrTy));
return Builder.CreateLoad(Tmp, "stmxcsr");
}
case X86::BI__builtin_ia32_cmpordps:
case X86::BI__builtin_ia32_cmpordpd:
case X86::BI__builtin_ia32_cmpunordps:
case X86::BI__builtin_ia32_cmpunordpd:
case X86::BI__builtin_ia32_cmpeqps:
case X86::BI__builtin_ia32_cmpeqpd:
case X86::BI__builtin_ia32_cmpltps:
case X86::BI__builtin_ia32_cmpltpd:
case X86::BI__builtin_ia32_cmpleps:
case X86::BI__builtin_ia32_cmplepd:
case X86::BI__builtin_ia32_cmpneqps:
case X86::BI__builtin_ia32_cmpneqpd:
case X86::BI__builtin_ia32_cmpngtps:
case X86::BI__builtin_ia32_cmpngtpd:
case X86::BI__builtin_ia32_cmpnltps:
case X86::BI__builtin_ia32_cmpnltpd:
case X86::BI__builtin_ia32_cmpgtps:
case X86::BI__builtin_ia32_cmpgtpd:
case X86::BI__builtin_ia32_cmpgeps:
case X86::BI__builtin_ia32_cmpgepd:
case X86::BI__builtin_ia32_cmpngeps:
case X86::BI__builtin_ia32_cmpngepd:
case X86::BI__builtin_ia32_cmpnleps:
case X86::BI__builtin_ia32_cmpnlepd: {
unsigned i = 0;
const char *name = 0;
bool ShouldSwap = false;
switch (BuiltinID) {
default: assert(0 && "Unknown compare builtin!");
case X86::BI__builtin_ia32_cmpeqps:
case X86::BI__builtin_ia32_cmpeqpd: i = 0; name = "cmpeq"; break;
case X86::BI__builtin_ia32_cmpltps:
case X86::BI__builtin_ia32_cmpltpd: i = 1; name = "cmplt"; break;
case X86::BI__builtin_ia32_cmpleps:
case X86::BI__builtin_ia32_cmplepd: i = 2; name = "cmple"; break;
case X86::BI__builtin_ia32_cmpunordps:
case X86::BI__builtin_ia32_cmpunordpd: i = 3; name = "cmpunord"; break;
case X86::BI__builtin_ia32_cmpneqps:
case X86::BI__builtin_ia32_cmpneqpd: i = 4; name = "cmpneq"; break;
case X86::BI__builtin_ia32_cmpnltps:
case X86::BI__builtin_ia32_cmpnltpd: i = 5; name = "cmpntl"; break;
case X86::BI__builtin_ia32_cmpnleps:
case X86::BI__builtin_ia32_cmpnlepd: i = 6; name = "cmpnle"; break;
case X86::BI__builtin_ia32_cmpordps:
case X86::BI__builtin_ia32_cmpordpd: i = 7; name = "cmpord"; break;
case X86::BI__builtin_ia32_cmpgtps:
case X86::BI__builtin_ia32_cmpgtpd:
ShouldSwap = true;
i = 1;
name = "cmpgt";
break;
case X86::BI__builtin_ia32_cmpgeps:
case X86::BI__builtin_ia32_cmpgepd:
i = 2;
name = "cmpge";
ShouldSwap = true;
break;
case X86::BI__builtin_ia32_cmpngtps:
case X86::BI__builtin_ia32_cmpngtpd:
i = 5;
name = "cmpngt";
ShouldSwap = true;
break;
case X86::BI__builtin_ia32_cmpngeps:
case X86::BI__builtin_ia32_cmpngepd:
i = 6;
name = "cmpnge";
ShouldSwap = true;
break;
}
if (ShouldSwap)
std::swap(Ops[0], Ops[1]);
llvm::Function *F;
if (cast<llvm::VectorType>(Ops[0]->getType())->getElementType() ==
llvm::Type::FloatTy)
F = CGM.getIntrinsic(Intrinsic::x86_sse_cmp_ps);
else
F = CGM.getIntrinsic(Intrinsic::x86_sse2_cmp_pd);
Ops.push_back(llvm::ConstantInt::get(llvm::Type::Int8Ty, i));
return Builder.CreateCall(F, &Ops[0], &Ops[0] + Ops.size(), name);
}
case X86::BI__builtin_ia32_movss:
return EmitShuffleVector(Ops[0], Ops[1], 4, 1, 2, 3, "movss");
case X86::BI__builtin_ia32_shufps: {
unsigned i = cast<ConstantInt>(Ops[2])->getZExtValue();
return EmitShuffleVector(Ops[0], Ops[1],
i & 0x3, (i & 0xc) >> 2,
((i & 0x30) >> 4) + 4,
((i & 0xc0) >> 6) + 4, "shufps");
}
case X86::BI__builtin_ia32_shufpd: {
unsigned i = cast<ConstantInt>(Ops[2])->getZExtValue();
return EmitShuffleVector(Ops[0], Ops[1], i & 1, (i & 2) + 2, "shufpd");
}
case X86::BI__builtin_ia32_punpcklbw128:
return EmitShuffleVector(Ops[0], Ops[1], 0, 16, 1, 17, 2, 18, 3, 19,
4, 20, 5, 21, 6, 22, 7, 23,
"punpcklbw");
case X86::BI__builtin_ia32_punpcklwd128:
return EmitShuffleVector(Ops[0], Ops[1], 0, 8, 1, 9, 2, 10, 3, 11,
"punpcklwd");
case X86::BI__builtin_ia32_movlhps:
return EmitShuffleVector(Ops[0], Ops[1], 0, 1, 4, 5, "movlhps");
case X86::BI__builtin_ia32_movhlps:
return EmitShuffleVector(Ops[0], Ops[1], 6, 7, 2, 3, "movhlps");
case X86::BI__builtin_ia32_unpckhps:
return EmitShuffleVector(Ops[0], Ops[1], 2, 6, 3, 7, "unpckhps");
case X86::BI__builtin_ia32_unpcklps:
return EmitShuffleVector(Ops[0], Ops[1], 0, 4, 1, 5, "unpcklps");
case X86::BI__builtin_ia32_unpckhpd:
return EmitShuffleVector(Ops[0], Ops[1], 1, 3, "unpckhpd");
case X86::BI__builtin_ia32_unpcklpd:
return EmitShuffleVector(Ops[0], Ops[1], 0, 2, "unpcklpd");
case X86::BI__builtin_ia32_movsd:
return EmitShuffleVector(Ops[0], Ops[1], 2, 1, "movsd");
case X86::BI__builtin_ia32_movqv4si: {
llvm::Type *Ty = llvm::VectorType::get(llvm::Type::Int64Ty, 2);
return Builder.CreateBitCast(Ops[0], Ty);
}
case X86::BI__builtin_ia32_loadlps:
case X86::BI__builtin_ia32_loadhps: {
// FIXME: This should probably be represented as
// shuffle (dst, (v4f32 (insert undef, (load i64), 0)), shuf mask hi/lo)
const llvm::Type *EltTy = llvm::Type::DoubleTy;
const llvm::Type *VecTy = llvm::VectorType::get(EltTy, 2);
const llvm::Type *OrigTy = Ops[0]->getType();
unsigned Index = BuiltinID == X86::BI__builtin_ia32_loadlps ? 0 : 1;
llvm::Value *Idx = llvm::ConstantInt::get(llvm::Type::Int32Ty, Index);
Ops[1] = Builder.CreateBitCast(Ops[1], llvm::PointerType::getUnqual(EltTy));
Ops[1] = Builder.CreateLoad(Ops[1], "tmp");
Ops[0] = Builder.CreateBitCast(Ops[0], VecTy, "cast");
Ops[0] = Builder.CreateInsertElement(Ops[0], Ops[1], Idx, "loadps");
return Builder.CreateBitCast(Ops[0], OrigTy, "loadps");
}
case X86::BI__builtin_ia32_loadlpd:
case X86::BI__builtin_ia32_loadhpd: {
Ops[1] = Builder.CreateLoad(Ops[1], "tmp");
unsigned Index = BuiltinID == X86::BI__builtin_ia32_loadlpd ? 0 : 1;
llvm::Value *Idx = llvm::ConstantInt::get(llvm::Type::Int32Ty, Index);
return Builder.CreateInsertElement(Ops[0], Ops[1], Idx, "loadpd");
}
case X86::BI__builtin_ia32_storehps:
case X86::BI__builtin_ia32_storelps: {
const llvm::Type *EltTy = llvm::Type::Int64Ty;
llvm::Type *PtrTy = llvm::PointerType::getUnqual(EltTy);
llvm::Type *VecTy = llvm::VectorType::get(EltTy, 2);
// cast val v2i64
Ops[1] = Builder.CreateBitCast(Ops[1], VecTy, "cast");
// extract (0, 1)
unsigned Index = BuiltinID == X86::BI__builtin_ia32_storelps ? 0 : 1;
llvm::Value *Idx = llvm::ConstantInt::get(llvm::Type::Int32Ty, Index);
Ops[1] = Builder.CreateExtractElement(Ops[1], Idx, "extract");
// cast pointer to i64 & store
Ops[0] = Builder.CreateBitCast(Ops[0], PtrTy);
return Builder.CreateStore(Ops[1], Ops[0]);
}
case X86::BI__builtin_ia32_loadlv4si: {
// load i64
const llvm::Type *EltTy = llvm::Type::Int64Ty;
llvm::Type *PtrTy = llvm::PointerType::getUnqual(EltTy);
Ops[0] = Builder.CreateBitCast(Ops[0], PtrTy);
Ops[0] = Builder.CreateLoad(Ops[0], "load");
// scalar to vector: insert i64 into 2 x i64 undef
llvm::Type *VecTy = llvm::VectorType::get(EltTy, 2);
llvm::Value *Zero = llvm::ConstantInt::get(llvm::Type::Int32Ty, 0);
Ops[0] = Builder.CreateInsertElement(llvm::UndefValue::get(VecTy),
Ops[0], Zero, "s2v");
// shuffle into zero vector.
std::vector<llvm::Constant *>Elts;
Elts.resize(2, llvm::ConstantInt::get(EltTy, 0));
llvm::Value *ZV = ConstantVector::get(Elts);
Ops[0] = EmitShuffleVector(ZV, Ops[0], 2, 1, "loadl");
// bitcast to result.
return Builder.CreateBitCast(Ops[0],
llvm::VectorType::get(llvm::Type::Int32Ty, 4));
}
case X86::BI__builtin_ia32_vec_set_v4hi:
case X86::BI__builtin_ia32_vec_set_v8hi:
return Builder.CreateInsertElement(Ops[0], Ops[1], Ops[2], "pinsrw");
case X86::BI__builtin_ia32_vec_set_v4si:
return Builder.CreateInsertElement(Ops[0], Ops[1], Ops[2], "pinsrd");
case X86::BI__builtin_ia32_vec_set_v2di:
return Builder.CreateInsertElement(Ops[0], Ops[1], Ops[2], "pinsrq");
case X86::BI__builtin_ia32_andps:
case X86::BI__builtin_ia32_andpd:
case X86::BI__builtin_ia32_andnps:
case X86::BI__builtin_ia32_andnpd:
case X86::BI__builtin_ia32_orps:
case X86::BI__builtin_ia32_orpd:
case X86::BI__builtin_ia32_xorpd:
case X86::BI__builtin_ia32_xorps: {
const llvm::Type *ITy = llvm::VectorType::get(llvm::Type::Int32Ty, 4);
const llvm::Type *FTy = Ops[0]->getType();
Ops[0] = Builder.CreateBitCast(Ops[0], ITy, "bitcast");
Ops[1] = Builder.CreateBitCast(Ops[1], ITy, "bitcast");
switch (BuiltinID) {
case X86::BI__builtin_ia32_andps:
Ops[0] = Builder.CreateAnd(Ops[0], Ops[1], "andps");
break;
case X86::BI__builtin_ia32_andpd:
Ops[0] = Builder.CreateAnd(Ops[0], Ops[1], "andpd");
break;
case X86::BI__builtin_ia32_andnps:
Ops[0] = Builder.CreateNot(Ops[0], "not");
Ops[0] = Builder.CreateAnd(Ops[0], Ops[1], "andnps");
break;
case X86::BI__builtin_ia32_andnpd:
Ops[0] = Builder.CreateNot(Ops[0], "not");
Ops[0] = Builder.CreateAnd(Ops[0], Ops[1], "andnpd");
break;
case X86::BI__builtin_ia32_orps:
Ops[0] = Builder.CreateOr(Ops[0], Ops[1], "orps");
break;
case X86::BI__builtin_ia32_orpd:
Ops[0] = Builder.CreateOr(Ops[0], Ops[1], "orpd");
break;
case X86::BI__builtin_ia32_xorps:
Ops[0] = Builder.CreateXor(Ops[0], Ops[1], "xorps");
break;
case X86::BI__builtin_ia32_xorpd:
Ops[0] = Builder.CreateXor(Ops[0], Ops[1], "xorpd");
break;
}
return Builder.CreateBitCast(Ops[0], FTy, "bitcast");
}
}
}
Value *CodeGenFunction::EmitPPCBuiltinExpr(unsigned BuiltinID,
const CallExpr *E) {
switch (BuiltinID) {
default: return 0;
}
}
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