#include "llvm/AutoUpgrade.h"
#include "llvm/Constants.h"
#include "llvm/Function.h"
#include "llvm/LLVMContext.h"
#include "llvm/Module.h"
#include "llvm/IntrinsicInst.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/Support/CallSite.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/IRBuilder.h"
#include <cstring>
using namespace llvm;
static bool UpgradeIntrinsicFunction1(Function *F, Function *&NewFn) {
assert(F && "Illegal to upgrade a non-existent Function.");
const std::string& Name = F->getName();
const FunctionType *FTy = F->getFunctionType();
if (Name.length() <= 8 || Name[0] != 'l' || Name[1] != 'l' ||
Name[2] != 'v' || Name[3] != 'm' || Name[4] != '.')
return false;
Module *M = F->getParent();
switch (Name[5]) {
default: break;
case 'a':
if (Name.compare(5,7,"atomic.",7) == 0) {
if (Name.compare(12,3,"lcs",3) == 0) {
std::string::size_type delim = Name.find('.',12);
F->setName("llvm.atomic.cmp.swap" + Name.substr(delim) +
".p0" + Name.substr(delim+1));
NewFn = F;
return true;
}
else if (Name.compare(12,3,"las",3) == 0) {
std::string::size_type delim = Name.find('.',12);
F->setName("llvm.atomic.load.add"+Name.substr(delim)
+ ".p0" + Name.substr(delim+1));
NewFn = F;
return true;
}
else if (Name.compare(12,3,"lss",3) == 0) {
std::string::size_type delim = Name.find('.',12);
F->setName("llvm.atomic.load.sub"+Name.substr(delim)
+ ".p0" + Name.substr(delim+1));
NewFn = F;
return true;
}
else if (Name.rfind(".p") == std::string::npos) {
std::string::size_type delim = Name.find_last_of('.');
assert(delim != std::string::npos && "can not find type");
F->setName(Name + ".p0" + Name.substr(delim+1));
NewFn = F;
return true;
}
} else if (Name.compare(5, 9, "arm.neon.", 9) == 0) {
if (((Name.compare(14, 5, "vmovl", 5) == 0 ||
Name.compare(14, 5, "vaddl", 5) == 0 ||
Name.compare(14, 5, "vsubl", 5) == 0 ||
Name.compare(14, 5, "vaddw", 5) == 0 ||
Name.compare(14, 5, "vsubw", 5) == 0 ||
Name.compare(14, 5, "vmlal", 5) == 0 ||
Name.compare(14, 5, "vmlsl", 5) == 0 ||
Name.compare(14, 5, "vabdl", 5) == 0 ||
Name.compare(14, 5, "vabal", 5) == 0) &&
(Name.compare(19, 2, "s.", 2) == 0 ||
Name.compare(19, 2, "u.", 2) == 0)) ||
(Name.compare(14, 4, "vaba", 4) == 0 &&
(Name.compare(18, 2, "s.", 2) == 0 ||
Name.compare(18, 2, "u.", 2) == 0)) ||
(Name.compare(14, 6, "vmovn.", 6) == 0)) {
NewFn = 0;
return true;
}
bool isVLd = (Name.compare(14, 3, "vld", 3) == 0);
bool isVSt = (Name.compare(14, 3, "vst", 3) == 0);
if (isVLd || isVSt) {
unsigned NumVecs = Name.at(17) - '0';
if (NumVecs == 0 || NumVecs > 4)
return false;
bool isLaneOp = (Name.compare(18, 5, "lane.", 5) == 0);
if (!isLaneOp && Name.at(18) != '.')
return false;
unsigned ExpectedArgs = 2; if (isVSt || isLaneOp)
ExpectedArgs += NumVecs;
if (isLaneOp)
ExpectedArgs += 1; unsigned NumP = FTy->getNumParams();
if (NumP != ExpectedArgs - 1)
return false;
F->setName("");
std::vector<const Type*> NewParams;
for (unsigned p = 0; p < NumP; ++p)
NewParams.push_back(FTy->getParamType(p));
NewParams.push_back(Type::getInt32Ty(F->getContext()));
FunctionType *NewFTy = FunctionType::get(FTy->getReturnType(),
NewParams, false);
NewFn = cast<Function>(M->getOrInsertFunction(Name, NewFTy));
return true;
}
}
break;
case 'b':
if (Name.compare(5,6,"bswap.",6) == 0) {
std::string::size_type delim = Name.find('.',11);
if (delim != std::string::npos) {
F->setName(Name.substr(0,10)+Name.substr(delim));
NewFn = F;
return true;
}
}
break;
case 'c':
if ( (Name.compare(5,5,"ctpop",5) == 0 ||
Name.compare(5,4,"ctlz",4) == 0 ||
Name.compare(5,4,"cttz",4) == 0) &&
FTy->getReturnType() != FTy->getParamType(0)) {
F->setName("");
NewFn = cast<Function>(M->getOrInsertFunction(Name,
FTy->getParamType(0),
FTy->getParamType(0),
(Type *)0));
return true;
}
break;
case 'e':
if (Name.compare("llvm.eh.selector.i32") == 0) {
F->setName("llvm.eh.selector");
NewFn = F;
return true;
}
if (Name.compare("llvm.eh.typeid.for.i32") == 0) {
F->setName("llvm.eh.typeid.for");
NewFn = F;
return true;
}
if (Name.compare("llvm.eh.selector.i64") == 0) {
NewFn = Intrinsic::getDeclaration(M, Intrinsic::eh_selector);
return true;
}
if (Name.compare("llvm.eh.typeid.for.i64") == 0) {
NewFn = Intrinsic::getDeclaration(M, Intrinsic::eh_typeid_for);
return true;
}
break;
case 'm': {
const char* NewFnName = NULL;
if (Name.compare(5,8,"memcpy.i",8) == 0) {
if (Name[13] == '8')
NewFnName = "llvm.memcpy.p0i8.p0i8.i8";
else if (Name.compare(13,2,"16") == 0)
NewFnName = "llvm.memcpy.p0i8.p0i8.i16";
else if (Name.compare(13,2,"32") == 0)
NewFnName = "llvm.memcpy.p0i8.p0i8.i32";
else if (Name.compare(13,2,"64") == 0)
NewFnName = "llvm.memcpy.p0i8.p0i8.i64";
} else if (Name.compare(5,9,"memmove.i",9) == 0) {
if (Name[14] == '8')
NewFnName = "llvm.memmove.p0i8.p0i8.i8";
else if (Name.compare(14,2,"16") == 0)
NewFnName = "llvm.memmove.p0i8.p0i8.i16";
else if (Name.compare(14,2,"32") == 0)
NewFnName = "llvm.memmove.p0i8.p0i8.i32";
else if (Name.compare(14,2,"64") == 0)
NewFnName = "llvm.memmove.p0i8.p0i8.i64";
}
else if (Name.compare(5,8,"memset.i",8) == 0) {
if (Name[13] == '8')
NewFnName = "llvm.memset.p0i8.i8";
else if (Name.compare(13,2,"16") == 0)
NewFnName = "llvm.memset.p0i8.i16";
else if (Name.compare(13,2,"32") == 0)
NewFnName = "llvm.memset.p0i8.i32";
else if (Name.compare(13,2,"64") == 0)
NewFnName = "llvm.memset.p0i8.i64";
}
if (NewFnName) {
NewFn = cast<Function>(M->getOrInsertFunction(NewFnName,
FTy->getReturnType(),
FTy->getParamType(0),
FTy->getParamType(1),
FTy->getParamType(2),
FTy->getParamType(3),
Type::getInt1Ty(F->getContext()),
(Type *)0));
return true;
}
break;
}
case 'p':
if (Name.compare(5,12,"part.select.",12) == 0) {
std::string::size_type delim = Name.find('.',17);
if (delim != std::string::npos) {
F->setName(Name.substr(0,16)+Name.substr(delim));
NewFn = F;
return true;
}
break;
}
if (Name.compare(5,9,"part.set.",9) == 0) {
std::string::size_type delim = Name.find('.',14);
if (delim != std::string::npos &&
Name.find('.',delim+1) != std::string::npos) {
F->setName(Name.substr(0,13)+Name.substr(delim));
NewFn = F;
return true;
}
break;
}
break;
case 'x':
if (Name.compare(5, 8, "x86.mmx.", 8) == 0) {
const Type *X86_MMXTy = VectorType::getX86_MMXTy(FTy->getContext());
if (Name.compare(13, 4, "padd", 4) == 0 ||
Name.compare(13, 4, "psub", 4) == 0 ||
Name.compare(13, 4, "pmul", 4) == 0 ||
Name.compare(13, 5, "pmadd", 5) == 0 ||
Name.compare(13, 4, "pand", 4) == 0 ||
Name.compare(13, 3, "por", 3) == 0 ||
Name.compare(13, 4, "pxor", 4) == 0 ||
Name.compare(13, 4, "pavg", 4) == 0 ||
Name.compare(13, 4, "pmax", 4) == 0 ||
Name.compare(13, 4, "pmin", 4) == 0 ||
Name.compare(13, 4, "psad", 4) == 0 ||
Name.compare(13, 4, "psll", 4) == 0 ||
Name.compare(13, 4, "psrl", 4) == 0 ||
Name.compare(13, 4, "psra", 4) == 0 ||
Name.compare(13, 4, "pack", 4) == 0 ||
Name.compare(13, 6, "punpck", 6) == 0 ||
Name.compare(13, 4, "pcmp", 4) == 0) {
assert(FTy->getNumParams() == 2 && "MMX intrinsic takes 2 args!");
const Type *SecondParamTy = X86_MMXTy;
if (Name.compare(13, 5, "pslli", 5) == 0 ||
Name.compare(13, 5, "psrli", 5) == 0 ||
Name.compare(13, 5, "psrai", 5) == 0)
SecondParamTy = FTy->getParamType(1);
if (FTy->getReturnType() == X86_MMXTy &&
FTy->getParamType(0) == X86_MMXTy &&
FTy->getParamType(1) == SecondParamTy)
break;
F->setName("");
NewFn = cast<Function>(M->getOrInsertFunction(Name,
X86_MMXTy, X86_MMXTy,
SecondParamTy, (Type*)0));
return true;
}
if (Name.compare(13, 8, "maskmovq", 8) == 0) {
if (FTy->getParamType(0) == X86_MMXTy &&
FTy->getParamType(1) == X86_MMXTy)
break;
F->setName("");
NewFn = cast<Function>(M->getOrInsertFunction(Name,
FTy->getReturnType(),
X86_MMXTy,
X86_MMXTy,
FTy->getParamType(2),
(Type*)0));
return true;
}
if (Name.compare(13, 8, "pmovmskb", 8) == 0) {
if (FTy->getParamType(0) == X86_MMXTy)
break;
F->setName("");
NewFn = cast<Function>(M->getOrInsertFunction(Name,
FTy->getReturnType(),
X86_MMXTy,
(Type*)0));
return true;
}
if (Name.compare(13, 5, "movnt", 5) == 0) {
if (FTy->getParamType(1) == X86_MMXTy)
break;
F->setName("");
NewFn = cast<Function>(M->getOrInsertFunction(Name,
FTy->getReturnType(),
FTy->getParamType(0),
X86_MMXTy,
(Type*)0));
return true;
}
if (Name.compare(13, 7, "palignr", 7) == 0) {
if (FTy->getReturnType() == X86_MMXTy &&
FTy->getParamType(0) == X86_MMXTy &&
FTy->getParamType(1) == X86_MMXTy)
break;
F->setName("");
NewFn = cast<Function>(M->getOrInsertFunction(Name,
X86_MMXTy,
X86_MMXTy,
X86_MMXTy,
FTy->getParamType(2),
(Type*)0));
return true;
}
if (Name.compare(13, 5, "pextr", 5) == 0) {
if (FTy->getParamType(0) == X86_MMXTy)
break;
F->setName("");
NewFn = cast<Function>(M->getOrInsertFunction(Name,
FTy->getReturnType(),
X86_MMXTy,
FTy->getParamType(1),
(Type*)0));
return true;
}
if (Name.compare(13, 5, "pinsr", 5) == 0) {
if (FTy->getReturnType() == X86_MMXTy &&
FTy->getParamType(0) == X86_MMXTy)
break;
F->setName("");
NewFn = cast<Function>(M->getOrInsertFunction(Name,
X86_MMXTy,
X86_MMXTy,
FTy->getParamType(1),
FTy->getParamType(2),
(Type*)0));
return true;
}
if (Name.compare(13, 12, "cvtsi32.si64", 12) == 0) {
if (FTy->getReturnType() == X86_MMXTy)
break;
F->setName("");
NewFn = cast<Function>(M->getOrInsertFunction(Name,
X86_MMXTy,
FTy->getParamType(0),
(Type*)0));
return true;
}
if (Name.compare(13, 12, "cvtsi64.si32", 12) == 0) {
if (FTy->getParamType(0) == X86_MMXTy)
break;
F->setName("");
NewFn = cast<Function>(M->getOrInsertFunction(Name,
FTy->getReturnType(),
X86_MMXTy,
(Type*)0));
return true;
}
if (Name.compare(13, 8, "vec.init", 8) == 0) {
if (FTy->getReturnType() == X86_MMXTy)
break;
F->setName("");
if (Name.compare(21, 2, ".b", 2) == 0)
NewFn = cast<Function>(M->getOrInsertFunction(Name,
X86_MMXTy,
FTy->getParamType(0),
FTy->getParamType(1),
FTy->getParamType(2),
FTy->getParamType(3),
FTy->getParamType(4),
FTy->getParamType(5),
FTy->getParamType(6),
FTy->getParamType(7),
(Type*)0));
else if (Name.compare(21, 2, ".w", 2) == 0)
NewFn = cast<Function>(M->getOrInsertFunction(Name,
X86_MMXTy,
FTy->getParamType(0),
FTy->getParamType(1),
FTy->getParamType(2),
FTy->getParamType(3),
(Type*)0));
else if (Name.compare(21, 2, ".d", 2) == 0)
NewFn = cast<Function>(M->getOrInsertFunction(Name,
X86_MMXTy,
FTy->getParamType(0),
FTy->getParamType(1),
(Type*)0));
return true;
}
if (Name.compare(13, 9, "vec.ext.d", 9) == 0) {
if (FTy->getReturnType() == X86_MMXTy &&
FTy->getParamType(0) == X86_MMXTy)
break;
F->setName("");
NewFn = cast<Function>(M->getOrInsertFunction(Name,
X86_MMXTy,
X86_MMXTy,
FTy->getParamType(1),
(Type*)0));
return true;
}
if (Name.compare(13, 9, "emms", 4) == 0 ||
Name.compare(13, 9, "femms", 5) == 0) {
NewFn = 0;
break;
}
assert(0 && "Invalid MMX intrinsic!");
break;
} else if (Name.compare(5,17,"x86.sse2.loadh.pd",17) == 0 ||
Name.compare(5,17,"x86.sse2.loadl.pd",17) == 0 ||
Name.compare(5,16,"x86.sse2.movl.dq",16) == 0 ||
Name.compare(5,15,"x86.sse2.movs.d",15) == 0 ||
Name.compare(5,16,"x86.sse2.shuf.pd",16) == 0 ||
Name.compare(5,18,"x86.sse2.unpckh.pd",18) == 0 ||
Name.compare(5,18,"x86.sse2.unpckl.pd",18) == 0 ||
Name.compare(5,20,"x86.sse2.punpckh.qdq",20) == 0 ||
Name.compare(5,20,"x86.sse2.punpckl.qdq",20) == 0) {
NewFn = 0;
return true;
} else if (Name.compare(5, 16, "x86.sse41.pmulld", 16) == 0) {
NewFn = 0;
return true;
} else if (Name.compare(5, 18, "x86.ssse3.palign.r", 18) == 0 ||
Name.compare(5, 22, "x86.ssse3.palign.r.128", 22) == 0) {
NewFn = 0;
return true;
} else if (Name.compare(5, 16, "x86.sse.loadu.ps", 16) == 0 ||
Name.compare(5, 17, "x86.sse2.loadu.dq", 17) == 0 ||
Name.compare(5, 17, "x86.sse2.loadu.pd", 17) == 0) {
NewFn = 0;
return true;
} else if (Name.compare(5, 16, "x86.sse.movnt.ps", 16) == 0 ||
Name.compare(5, 17, "x86.sse2.movnt.dq", 17) == 0 ||
Name.compare(5, 17, "x86.sse2.movnt.pd", 17) == 0 ||
Name.compare(5, 17, "x86.sse2.movnt.i", 16) == 0) {
NewFn = 0;
return true;
} else if (Name.compare(5, 17, "x86.ssse3.pshuf.w", 17) == 0) {
const Type *X86_MMXTy = VectorType::getX86_MMXTy(FTy->getContext());
NewFn =
cast<Function>(M->getOrInsertFunction("llvm.x86.sse.pshuf.w",
X86_MMXTy,
X86_MMXTy,
Type::getInt8Ty(F->getContext()),
(Type*)0));
return true;
}
break;
}
return false;
}
bool llvm::UpgradeIntrinsicFunction(Function *F, Function *&NewFn) {
NewFn = 0;
bool Upgraded = UpgradeIntrinsicFunction1(F, NewFn);
if (NewFn)
F = NewFn;
if (unsigned id = F->getIntrinsicID())
F->setAttributes(Intrinsic::getAttributes((Intrinsic::ID)id));
return Upgraded;
}
bool llvm::UpgradeGlobalVariable(GlobalVariable *GV) {
StringRef Name(GV->getName());
if (Name == ".llvm.eh.catch.all.value") {
GV->setName("llvm.eh.catch.all.value");
return true;
}
return false;
}
static void ExtendNEONArgs(CallInst *CI, Value *Arg0, Value *Arg1,
Value *&V0, Value *&V1) {
Function *F = CI->getCalledFunction();
const std::string& Name = F->getName();
bool isLong = (Name.at(18) == 'l');
bool isSigned = (Name.at(19) == 's');
if (isSigned) {
if (isLong)
V0 = new SExtInst(Arg0, CI->getType(), "", CI);
else
V0 = Arg0;
V1 = new SExtInst(Arg1, CI->getType(), "", CI);
} else {
if (isLong)
V0 = new ZExtInst(Arg0, CI->getType(), "", CI);
else
V0 = Arg0;
V1 = new ZExtInst(Arg1, CI->getType(), "", CI);
}
}
static Instruction *CallVABD(CallInst *CI, Value *Arg0, Value *Arg1) {
Function *F = CI->getCalledFunction();
const std::string& Name = F->getName();
bool isLong = (Name.at(18) == 'l');
bool isSigned = (Name.at(isLong ? 19 : 18) == 's');
Intrinsic::ID intID;
if (isSigned)
intID = Intrinsic::arm_neon_vabds;
else
intID = Intrinsic::arm_neon_vabdu;
const Type *Ty = CI->getType();
if (isLong)
Ty = VectorType::getTruncatedElementVectorType(cast<const VectorType>(Ty));
Function *VABD = Intrinsic::getDeclaration(F->getParent(), intID, &Ty, 1);
Value *Operands[2];
Operands[0] = Arg0;
Operands[1] = Arg1;
return CallInst::Create(VABD, Operands, Operands+2,
"upgraded."+CI->getName(), CI);
}
static void ConstructNewCallInst(Function *NewFn, CallInst *OldCI,
Value **Operands, unsigned NumOps,
bool AssignName = true) {
CallInst *NewCI =
CallInst::Create(NewFn, Operands, Operands + NumOps,
AssignName ? "upgraded." + OldCI->getName() : "", OldCI);
NewCI->setTailCall(OldCI->isTailCall());
NewCI->setCallingConv(OldCI->getCallingConv());
if (!OldCI->use_empty()) {
if (OldCI->getType() != NewCI->getType()) {
Function *OldFn = OldCI->getCalledFunction();
CastInst *RetCast =
CastInst::Create(CastInst::getCastOpcode(NewCI, true,
OldFn->getReturnType(), true),
NewCI, OldFn->getReturnType(), NewCI->getName(),OldCI);
OldCI->replaceAllUsesWith(RetCast);
} else {
OldCI->replaceAllUsesWith(NewCI);
}
}
OldCI->eraseFromParent();
}
void llvm::UpgradeIntrinsicCall(CallInst *CI, Function *NewFn) {
Function *F = CI->getCalledFunction();
LLVMContext &C = CI->getContext();
ImmutableCallSite CS(CI);
assert(F && "CallInst has no function associated with it.");
if (!NewFn) {
const std::string& Name = F->getName();
if (Name.compare(5, 9, "arm.neon.", 9) == 0) {
Instruction *NewI;
Value *V0, *V1;
if (Name.compare(14, 7, "vmovls.", 7) == 0) {
NewI = new SExtInst(CI->getArgOperand(0), CI->getType(),
"upgraded." + CI->getName(), CI);
} else if (Name.compare(14, 7, "vmovlu.", 7) == 0) {
NewI = new ZExtInst(CI->getArgOperand(0), CI->getType(),
"upgraded." + CI->getName(), CI);
} else if (Name.compare(14, 4, "vadd", 4) == 0) {
ExtendNEONArgs(CI, CI->getArgOperand(0), CI->getArgOperand(1), V0, V1);
NewI = BinaryOperator::CreateAdd(V0, V1, "upgraded."+CI->getName(), CI);
} else if (Name.compare(14, 4, "vsub", 4) == 0) {
ExtendNEONArgs(CI, CI->getArgOperand(0), CI->getArgOperand(1), V0, V1);
NewI = BinaryOperator::CreateSub(V0, V1,"upgraded."+CI->getName(),CI);
} else if (Name.compare(14, 4, "vmul", 4) == 0) {
ExtendNEONArgs(CI, CI->getArgOperand(0), CI->getArgOperand(1), V0, V1);
NewI = BinaryOperator::CreateMul(V0, V1,"upgraded."+CI->getName(),CI);
} else if (Name.compare(14, 4, "vmla", 4) == 0) {
ExtendNEONArgs(CI, CI->getArgOperand(1), CI->getArgOperand(2), V0, V1);
Instruction *MulI = BinaryOperator::CreateMul(V0, V1, "", CI);
NewI = BinaryOperator::CreateAdd(CI->getArgOperand(0), MulI,
"upgraded."+CI->getName(), CI);
} else if (Name.compare(14, 4, "vmls", 4) == 0) {
ExtendNEONArgs(CI, CI->getArgOperand(1), CI->getArgOperand(2), V0, V1);
Instruction *MulI = BinaryOperator::CreateMul(V0, V1, "", CI);
NewI = BinaryOperator::CreateSub(CI->getArgOperand(0), MulI,
"upgraded."+CI->getName(), CI);
} else if (Name.compare(14, 4, "vabd", 4) == 0) {
NewI = CallVABD(CI, CI->getArgOperand(0), CI->getArgOperand(1));
NewI = new ZExtInst(NewI, CI->getType(), "upgraded."+CI->getName(), CI);
} else if (Name.compare(14, 4, "vaba", 4) == 0) {
NewI = CallVABD(CI, CI->getArgOperand(1), CI->getArgOperand(2));
if (Name.at(18) == 'l')
NewI = new ZExtInst(NewI, CI->getType(), "", CI);
NewI = BinaryOperator::CreateAdd(CI->getArgOperand(0), NewI,
"upgraded."+CI->getName(), CI);
} else if (Name.compare(14, 6, "vmovn.", 6) == 0) {
NewI = new TruncInst(CI->getArgOperand(0), CI->getType(),
"upgraded." + CI->getName(), CI);
} else {
llvm_unreachable("Unknown arm.neon function for CallInst upgrade.");
}
if (!CI->use_empty())
CI->replaceAllUsesWith(NewI);
CI->eraseFromParent();
return;
}
bool isLoadH = false, isLoadL = false, isMovL = false;
bool isMovSD = false, isShufPD = false;
bool isUnpckhPD = false, isUnpcklPD = false;
bool isPunpckhQPD = false, isPunpcklQPD = false;
if (F->getName() == "llvm.x86.sse2.loadh.pd")
isLoadH = true;
else if (F->getName() == "llvm.x86.sse2.loadl.pd")
isLoadL = true;
else if (F->getName() == "llvm.x86.sse2.movl.dq")
isMovL = true;
else if (F->getName() == "llvm.x86.sse2.movs.d")
isMovSD = true;
else if (F->getName() == "llvm.x86.sse2.shuf.pd")
isShufPD = true;
else if (F->getName() == "llvm.x86.sse2.unpckh.pd")
isUnpckhPD = true;
else if (F->getName() == "llvm.x86.sse2.unpckl.pd")
isUnpcklPD = true;
else if (F->getName() == "llvm.x86.sse2.punpckh.qdq")
isPunpckhQPD = true;
else if (F->getName() == "llvm.x86.sse2.punpckl.qdq")
isPunpcklQPD = true;
if (isLoadH || isLoadL || isMovL || isMovSD || isShufPD ||
isUnpckhPD || isUnpcklPD || isPunpckhQPD || isPunpcklQPD) {
std::vector<Constant*> Idxs;
Value *Op0 = CI->getArgOperand(0);
ShuffleVectorInst *SI = NULL;
if (isLoadH || isLoadL) {
Value *Op1 = UndefValue::get(Op0->getType());
Value *Addr = new BitCastInst(CI->getArgOperand(1),
Type::getDoublePtrTy(C),
"upgraded.", CI);
Value *Load = new LoadInst(Addr, "upgraded.", false, 8, CI);
Value *Idx = ConstantInt::get(Type::getInt32Ty(C), 0);
Op1 = InsertElementInst::Create(Op1, Load, Idx, "upgraded.", CI);
if (isLoadH) {
Idxs.push_back(ConstantInt::get(Type::getInt32Ty(C), 0));
Idxs.push_back(ConstantInt::get(Type::getInt32Ty(C), 2));
} else {
Idxs.push_back(ConstantInt::get(Type::getInt32Ty(C), 2));
Idxs.push_back(ConstantInt::get(Type::getInt32Ty(C), 1));
}
Value *Mask = ConstantVector::get(Idxs);
SI = new ShuffleVectorInst(Op0, Op1, Mask, "upgraded.", CI);
} else if (isMovL) {
Constant *Zero = ConstantInt::get(Type::getInt32Ty(C), 0);
Idxs.push_back(Zero);
Idxs.push_back(Zero);
Idxs.push_back(Zero);
Idxs.push_back(Zero);
Value *ZeroV = ConstantVector::get(Idxs);
Idxs.clear();
Idxs.push_back(ConstantInt::get(Type::getInt32Ty(C), 4));
Idxs.push_back(ConstantInt::get(Type::getInt32Ty(C), 5));
Idxs.push_back(ConstantInt::get(Type::getInt32Ty(C), 2));
Idxs.push_back(ConstantInt::get(Type::getInt32Ty(C), 3));
Value *Mask = ConstantVector::get(Idxs);
SI = new ShuffleVectorInst(ZeroV, Op0, Mask, "upgraded.", CI);
} else if (isMovSD ||
isUnpckhPD || isUnpcklPD || isPunpckhQPD || isPunpcklQPD) {
Value *Op1 = CI->getArgOperand(1);
if (isMovSD) {
Idxs.push_back(ConstantInt::get(Type::getInt32Ty(C), 2));
Idxs.push_back(ConstantInt::get(Type::getInt32Ty(C), 1));
} else if (isUnpckhPD || isPunpckhQPD) {
Idxs.push_back(ConstantInt::get(Type::getInt32Ty(C), 1));
Idxs.push_back(ConstantInt::get(Type::getInt32Ty(C), 3));
} else {
Idxs.push_back(ConstantInt::get(Type::getInt32Ty(C), 0));
Idxs.push_back(ConstantInt::get(Type::getInt32Ty(C), 2));
}
Value *Mask = ConstantVector::get(Idxs);
SI = new ShuffleVectorInst(Op0, Op1, Mask, "upgraded.", CI);
} else if (isShufPD) {
Value *Op1 = CI->getArgOperand(1);
unsigned MaskVal =
cast<ConstantInt>(CI->getArgOperand(2))->getZExtValue();
Idxs.push_back(ConstantInt::get(Type::getInt32Ty(C), MaskVal & 1));
Idxs.push_back(ConstantInt::get(Type::getInt32Ty(C),
((MaskVal >> 1) & 1)+2));
Value *Mask = ConstantVector::get(Idxs);
SI = new ShuffleVectorInst(Op0, Op1, Mask, "upgraded.", CI);
}
assert(SI && "Unexpected!");
if (!CI->use_empty())
CI->replaceAllUsesWith(SI);
CI->eraseFromParent();
} else if (F->getName() == "llvm.x86.sse41.pmulld") {
Instruction *Mul = BinaryOperator::CreateMul(CI->getArgOperand(0),
CI->getArgOperand(1),
CI->getName(),
CI);
if (!CI->use_empty())
CI->replaceAllUsesWith(Mul);
CI->eraseFromParent();
} else if (F->getName() == "llvm.x86.ssse3.palign.r") {
Value *Op1 = CI->getArgOperand(0);
Value *Op2 = CI->getArgOperand(1);
Value *Op3 = CI->getArgOperand(2);
unsigned shiftVal = cast<ConstantInt>(Op3)->getZExtValue();
Value *Rep;
IRBuilder<> Builder(C);
Builder.SetInsertPoint(CI->getParent(), CI);
if (shiftVal <= 8) {
const Type *IntTy = Type::getInt32Ty(C);
const Type *EltTy = Type::getInt8Ty(C);
const Type *VecTy = VectorType::get(EltTy, 8);
Op2 = Builder.CreateBitCast(Op2, VecTy);
Op1 = Builder.CreateBitCast(Op1, VecTy);
llvm::SmallVector<llvm::Constant*, 8> Indices;
for (unsigned i = 0; i != 8; ++i)
Indices.push_back(ConstantInt::get(IntTy, shiftVal + i));
Value *SV = ConstantVector::get(Indices);
Rep = Builder.CreateShuffleVector(Op2, Op1, SV, "palignr");
Rep = Builder.CreateBitCast(Rep, F->getReturnType());
}
else if (shiftVal < 16) {
const Type *EltTy = Type::getInt64Ty(C);
const Type *VecTy = VectorType::get(EltTy, 1);
Op1 = Builder.CreateBitCast(Op1, VecTy, "cast");
Op2 = ConstantInt::get(VecTy, (shiftVal-8) * 8);
Function *I =
Intrinsic::getDeclaration(F->getParent(), Intrinsic::x86_mmx_psrl_q);
Rep = Builder.CreateCall2(I, Op1, Op2, "palignr");
}
else {
Rep = Constant::getNullValue(F->getReturnType());
}
if (!CI->use_empty())
CI->replaceAllUsesWith(Rep);
CI->eraseFromParent();
} else if (F->getName() == "llvm.x86.ssse3.palign.r.128") {
Value *Op1 = CI->getArgOperand(0);
Value *Op2 = CI->getArgOperand(1);
Value *Op3 = CI->getArgOperand(2);
unsigned shiftVal = cast<ConstantInt>(Op3)->getZExtValue();
Value *Rep;
IRBuilder<> Builder(C);
Builder.SetInsertPoint(CI->getParent(), CI);
if (shiftVal <= 16) {
const Type *IntTy = Type::getInt32Ty(C);
const Type *EltTy = Type::getInt8Ty(C);
const Type *VecTy = VectorType::get(EltTy, 16);
Op2 = Builder.CreateBitCast(Op2, VecTy);
Op1 = Builder.CreateBitCast(Op1, VecTy);
llvm::SmallVector<llvm::Constant*, 16> Indices;
for (unsigned i = 0; i != 16; ++i)
Indices.push_back(ConstantInt::get(IntTy, shiftVal + i));
Value *SV = ConstantVector::get(Indices);
Rep = Builder.CreateShuffleVector(Op2, Op1, SV, "palignr");
Rep = Builder.CreateBitCast(Rep, F->getReturnType());
}
else if (shiftVal < 32) {
const Type *EltTy = Type::getInt64Ty(C);
const Type *VecTy = VectorType::get(EltTy, 2);
const Type *IntTy = Type::getInt32Ty(C);
Op1 = Builder.CreateBitCast(Op1, VecTy, "cast");
Op2 = ConstantInt::get(IntTy, (shiftVal-16) * 8);
Function *I =
Intrinsic::getDeclaration(F->getParent(), Intrinsic::x86_sse2_psrl_dq);
Rep = Builder.CreateCall2(I, Op1, Op2, "palignr");
}
else {
Rep = Constant::getNullValue(F->getReturnType());
}
if (!CI->use_empty())
CI->replaceAllUsesWith(Rep);
CI->eraseFromParent();
} else if (F->getName() == "llvm.x86.sse.loadu.ps" ||
F->getName() == "llvm.x86.sse2.loadu.dq" ||
F->getName() == "llvm.x86.sse2.loadu.pd") {
const Type *VecTy = CI->getType();
const Type *IntTy = IntegerType::get(C, 128);
IRBuilder<> Builder(C);
Builder.SetInsertPoint(CI->getParent(), CI);
Value *BC = Builder.CreateBitCast(CI->getArgOperand(0),
PointerType::getUnqual(IntTy),
"cast");
LoadInst *LI = Builder.CreateLoad(BC, CI->getName());
LI->setAlignment(1); BC = Builder.CreateBitCast(LI, VecTy, "new.cast");
if (!CI->use_empty())
CI->replaceAllUsesWith(BC);
CI->eraseFromParent();
} else if (F->getName() == "llvm.x86.sse.movnt.ps" ||
F->getName() == "llvm.x86.sse2.movnt.dq" ||
F->getName() == "llvm.x86.sse2.movnt.pd" ||
F->getName() == "llvm.x86.sse2.movnt.i") {
IRBuilder<> Builder(C);
Builder.SetInsertPoint(CI->getParent(), CI);
Module *M = F->getParent();
SmallVector<Value *, 1> Elts;
Elts.push_back(ConstantInt::get(Type::getInt32Ty(C), 1));
MDNode *Node = MDNode::get(C, Elts);
Value *Arg0 = CI->getArgOperand(0);
Value *Arg1 = CI->getArgOperand(1);
Value *BC = Builder.CreateBitCast(Arg0,
PointerType::getUnqual(Arg1->getType()),
"cast");
StoreInst *SI = Builder.CreateStore(Arg1, BC);
SI->setMetadata(M->getMDKindID("nontemporal"), Node);
SI->setAlignment(16);
CI->eraseFromParent();
} else {
llvm_unreachable("Unknown function for CallInst upgrade.");
}
return;
}
switch (NewFn->getIntrinsicID()) {
default: llvm_unreachable("Unknown function for CallInst upgrade.");
case Intrinsic::arm_neon_vld1:
case Intrinsic::arm_neon_vld2:
case Intrinsic::arm_neon_vld3:
case Intrinsic::arm_neon_vld4:
case Intrinsic::arm_neon_vst1:
case Intrinsic::arm_neon_vst2:
case Intrinsic::arm_neon_vst3:
case Intrinsic::arm_neon_vst4:
case Intrinsic::arm_neon_vld2lane:
case Intrinsic::arm_neon_vld3lane:
case Intrinsic::arm_neon_vld4lane:
case Intrinsic::arm_neon_vst2lane:
case Intrinsic::arm_neon_vst3lane:
case Intrinsic::arm_neon_vst4lane: {
SmallVector<Value*, 8> Operands(CS.arg_begin(), CS.arg_end());
Operands.push_back(ConstantInt::get(Type::getInt32Ty(C), 1));
CallInst *NewCI = CallInst::Create(NewFn, Operands.begin(), Operands.end(),
CI->getName(), CI);
NewCI->setTailCall(CI->isTailCall());
NewCI->setCallingConv(CI->getCallingConv());
if (!CI->use_empty())
CI->replaceAllUsesWith(NewCI);
CI->eraseFromParent();
break;
}
case Intrinsic::x86_mmx_padd_b:
case Intrinsic::x86_mmx_padd_w:
case Intrinsic::x86_mmx_padd_d:
case Intrinsic::x86_mmx_padd_q:
case Intrinsic::x86_mmx_padds_b:
case Intrinsic::x86_mmx_padds_w:
case Intrinsic::x86_mmx_paddus_b:
case Intrinsic::x86_mmx_paddus_w:
case Intrinsic::x86_mmx_psub_b:
case Intrinsic::x86_mmx_psub_w:
case Intrinsic::x86_mmx_psub_d:
case Intrinsic::x86_mmx_psub_q:
case Intrinsic::x86_mmx_psubs_b:
case Intrinsic::x86_mmx_psubs_w:
case Intrinsic::x86_mmx_psubus_b:
case Intrinsic::x86_mmx_psubus_w:
case Intrinsic::x86_mmx_pmulh_w:
case Intrinsic::x86_mmx_pmull_w:
case Intrinsic::x86_mmx_pmulhu_w:
case Intrinsic::x86_mmx_pmulu_dq:
case Intrinsic::x86_mmx_pmadd_wd:
case Intrinsic::x86_mmx_pand:
case Intrinsic::x86_mmx_pandn:
case Intrinsic::x86_mmx_por:
case Intrinsic::x86_mmx_pxor:
case Intrinsic::x86_mmx_pavg_b:
case Intrinsic::x86_mmx_pavg_w:
case Intrinsic::x86_mmx_pmaxu_b:
case Intrinsic::x86_mmx_pmaxs_w:
case Intrinsic::x86_mmx_pminu_b:
case Intrinsic::x86_mmx_pmins_w:
case Intrinsic::x86_mmx_psad_bw:
case Intrinsic::x86_mmx_psll_w:
case Intrinsic::x86_mmx_psll_d:
case Intrinsic::x86_mmx_psll_q:
case Intrinsic::x86_mmx_pslli_w:
case Intrinsic::x86_mmx_pslli_d:
case Intrinsic::x86_mmx_pslli_q:
case Intrinsic::x86_mmx_psrl_w:
case Intrinsic::x86_mmx_psrl_d:
case Intrinsic::x86_mmx_psrl_q:
case Intrinsic::x86_mmx_psrli_w:
case Intrinsic::x86_mmx_psrli_d:
case Intrinsic::x86_mmx_psrli_q:
case Intrinsic::x86_mmx_psra_w:
case Intrinsic::x86_mmx_psra_d:
case Intrinsic::x86_mmx_psrai_w:
case Intrinsic::x86_mmx_psrai_d:
case Intrinsic::x86_mmx_packsswb:
case Intrinsic::x86_mmx_packssdw:
case Intrinsic::x86_mmx_packuswb:
case Intrinsic::x86_mmx_punpckhbw:
case Intrinsic::x86_mmx_punpckhwd:
case Intrinsic::x86_mmx_punpckhdq:
case Intrinsic::x86_mmx_punpcklbw:
case Intrinsic::x86_mmx_punpcklwd:
case Intrinsic::x86_mmx_punpckldq:
case Intrinsic::x86_mmx_pcmpeq_b:
case Intrinsic::x86_mmx_pcmpeq_w:
case Intrinsic::x86_mmx_pcmpeq_d:
case Intrinsic::x86_mmx_pcmpgt_b:
case Intrinsic::x86_mmx_pcmpgt_w:
case Intrinsic::x86_mmx_pcmpgt_d: {
Value *Operands[2];
Operands[0] = new BitCastInst(CI->getArgOperand(0),
NewFn->getFunctionType()->getParamType(0),
"upgraded.", CI);
switch (NewFn->getIntrinsicID()) {
default:
Operands[1] = new BitCastInst(CI->getArgOperand(1),
NewFn->getFunctionType()->getParamType(1),
"upgraded.", CI);
break;
case Intrinsic::x86_mmx_pslli_w:
case Intrinsic::x86_mmx_pslli_d:
case Intrinsic::x86_mmx_pslli_q:
case Intrinsic::x86_mmx_psrli_w:
case Intrinsic::x86_mmx_psrli_d:
case Intrinsic::x86_mmx_psrli_q:
case Intrinsic::x86_mmx_psrai_w:
case Intrinsic::x86_mmx_psrai_d:
Operands[1] = CI->getArgOperand(1);
break;
}
ConstructNewCallInst(NewFn, CI, Operands, 2);
break;
}
case Intrinsic::x86_mmx_maskmovq: {
Value *Operands[3];
Operands[0] = new BitCastInst(CI->getArgOperand(0),
NewFn->getFunctionType()->getParamType(0),
"upgraded.", CI);
Operands[1] = new BitCastInst(CI->getArgOperand(1),
NewFn->getFunctionType()->getParamType(1),
"upgraded.", CI);
Operands[2] = CI->getArgOperand(2);
ConstructNewCallInst(NewFn, CI, Operands, 3, false);
break;
}
case Intrinsic::x86_mmx_pmovmskb: {
Value *Operands[1];
Operands[0] = new BitCastInst(CI->getArgOperand(0),
NewFn->getFunctionType()->getParamType(0),
"upgraded.", CI);
ConstructNewCallInst(NewFn, CI, Operands, 1);
break;
}
case Intrinsic::x86_mmx_movnt_dq: {
Value *Operands[2];
Operands[0] = CI->getArgOperand(0);
Operands[1] = new BitCastInst(CI->getArgOperand(1),
NewFn->getFunctionType()->getParamType(1),
"upgraded.", CI);
ConstructNewCallInst(NewFn, CI, Operands, 2, false);
break;
}
case Intrinsic::x86_mmx_palignr_b: {
Value *Operands[3];
Operands[0] = new BitCastInst(CI->getArgOperand(0),
NewFn->getFunctionType()->getParamType(0),
"upgraded.", CI);
Operands[1] = new BitCastInst(CI->getArgOperand(1),
NewFn->getFunctionType()->getParamType(1),
"upgraded.", CI);
Operands[2] = CI->getArgOperand(2);
ConstructNewCallInst(NewFn, CI, Operands, 3);
break;
}
case Intrinsic::x86_mmx_pextr_w: {
Value *Operands[2];
Operands[0] = new BitCastInst(CI->getArgOperand(0),
NewFn->getFunctionType()->getParamType(0),
"upgraded.", CI);
Operands[1] = CI->getArgOperand(1);
ConstructNewCallInst(NewFn, CI, Operands, 2);
break;
}
case Intrinsic::x86_mmx_pinsr_w: {
Value *Operands[3];
Operands[0] = new BitCastInst(CI->getArgOperand(0),
NewFn->getFunctionType()->getParamType(0),
"upgraded.", CI);
Operands[1] = CI->getArgOperand(1);
Operands[2] = CI->getArgOperand(2);
ConstructNewCallInst(NewFn, CI, Operands, 3);
break;
}
case Intrinsic::x86_sse_pshuf_w: {
IRBuilder<> Builder(C);
Builder.SetInsertPoint(CI->getParent(), CI);
Value *Operands[2];
Operands[0] =
Builder.CreateBitCast(CI->getArgOperand(0),
NewFn->getFunctionType()->getParamType(0),
"upgraded.");
Operands[1] =
Builder.CreateTrunc(CI->getArgOperand(1),
Type::getInt8Ty(C),
"upgraded.");
ConstructNewCallInst(NewFn, CI, Operands, 2);
break;
}
case Intrinsic::ctlz:
case Intrinsic::ctpop:
case Intrinsic::cttz: {
SmallVector<Value*, 8> Operands(CS.arg_begin(), CS.arg_end());
CallInst *NewCI = CallInst::Create(NewFn, Operands.begin(), Operands.end(),
"upgraded."+CI->getName(), CI);
NewCI->setTailCall(CI->isTailCall());
NewCI->setCallingConv(CI->getCallingConv());
if (!CI->use_empty()) {
bool SrcSExt = NewFn->getAttributes().paramHasAttr(0, Attribute::SExt);
bool DestSExt = F->getAttributes().paramHasAttr(0, Attribute::SExt);
CastInst *RetCast = CastInst::Create(
CastInst::getCastOpcode(NewCI, SrcSExt,
F->getReturnType(),
DestSExt),
NewCI, F->getReturnType(),
NewCI->getName(), CI);
NewCI->moveBefore(RetCast);
CI->replaceAllUsesWith(RetCast);
}
CI->eraseFromParent();
}
break;
case Intrinsic::eh_selector:
case Intrinsic::eh_typeid_for: {
SmallVector<Value*, 8> Operands(CS.arg_begin(), CS.arg_end());
CallInst *NewCI = CallInst::Create(NewFn, Operands.begin(), Operands.end(),
"upgraded." + CI->getName(), CI);
NewCI->setTailCall(CI->isTailCall());
NewCI->setCallingConv(CI->getCallingConv());
if (!CI->use_empty()) {
CastInst *RetCast =
CastInst::Create(CastInst::getCastOpcode(NewCI, true,
F->getReturnType(), true),
NewCI, F->getReturnType(), NewCI->getName(), CI);
CI->replaceAllUsesWith(RetCast);
}
CI->eraseFromParent();
}
break;
case Intrinsic::memcpy:
case Intrinsic::memmove:
case Intrinsic::memset: {
const llvm::Type *I1Ty = llvm::Type::getInt1Ty(CI->getContext());
Value *Operands[5] = { CI->getArgOperand(0), CI->getArgOperand(1),
CI->getArgOperand(2), CI->getArgOperand(3),
llvm::ConstantInt::get(I1Ty, 0) };
CallInst *NewCI = CallInst::Create(NewFn, Operands, Operands+5,
CI->getName(), CI);
NewCI->setTailCall(CI->isTailCall());
NewCI->setCallingConv(CI->getCallingConv());
if (!CI->use_empty())
CI->replaceAllUsesWith(NewCI);
CI->eraseFromParent();
break;
}
}
}
void llvm::UpgradeCallsToIntrinsic(Function* F) {
assert(F && "Illegal attempt to upgrade a non-existent intrinsic.");
Function* NewFn;
if (UpgradeIntrinsicFunction(F, NewFn)) {
if (NewFn != F) {
for (Value::use_iterator UI = F->use_begin(), UE = F->use_end();
UI != UE; ) {
if (CallInst* CI = dyn_cast<CallInst>(*UI++))
UpgradeIntrinsicCall(CI, NewFn);
}
F->eraseFromParent();
}
}
}
void llvm::CheckDebugInfoIntrinsics(Module *M) {
if (Function *FuncStart = M->getFunction("llvm.dbg.func.start")) {
while (!FuncStart->use_empty()) {
CallInst *CI = cast<CallInst>(FuncStart->use_back());
CI->eraseFromParent();
}
FuncStart->eraseFromParent();
}
if (Function *StopPoint = M->getFunction("llvm.dbg.stoppoint")) {
while (!StopPoint->use_empty()) {
CallInst *CI = cast<CallInst>(StopPoint->use_back());
CI->eraseFromParent();
}
StopPoint->eraseFromParent();
}
if (Function *RegionStart = M->getFunction("llvm.dbg.region.start")) {
while (!RegionStart->use_empty()) {
CallInst *CI = cast<CallInst>(RegionStart->use_back());
CI->eraseFromParent();
}
RegionStart->eraseFromParent();
}
if (Function *RegionEnd = M->getFunction("llvm.dbg.region.end")) {
while (!RegionEnd->use_empty()) {
CallInst *CI = cast<CallInst>(RegionEnd->use_back());
CI->eraseFromParent();
}
RegionEnd->eraseFromParent();
}
if (Function *Declare = M->getFunction("llvm.dbg.declare")) {
if (!Declare->use_empty()) {
DbgDeclareInst *DDI = cast<DbgDeclareInst>(Declare->use_back());
if (!isa<MDNode>(DDI->getArgOperand(0)) ||
!isa<MDNode>(DDI->getArgOperand(1))) {
while (!Declare->use_empty()) {
CallInst *CI = cast<CallInst>(Declare->use_back());
CI->eraseFromParent();
}
Declare->eraseFromParent();
}
}
}
}