#include "llvm/AutoUpgrade.h"
#include "llvm/Constants.h"
#include "llvm/Function.h"
+#include "llvm/IRBuilder.h"
#include "llvm/Instruction.h"
+#include "llvm/IntrinsicInst.h"
#include "llvm/LLVMContext.h"
#include "llvm/Module.h"
-#include "llvm/IntrinsicInst.h"
-#include "llvm/ADT/DenseMap.h"
-#include "llvm/ADT/SmallPtrSet.h"
-#include "llvm/ADT/SmallVector.h"
-#include "llvm/Support/CallSite.h"
#include "llvm/Support/CFG.h"
+#include "llvm/Support/CallSite.h"
#include "llvm/Support/ErrorHandling.h"
-#include "llvm/Support/IRBuilder.h"
#include <cstring>
using namespace llvm;
+// Upgrade the declarations of the SSE4.1 functions whose arguments have
+// changed their type from v4f32 to v2i64.
+static bool UpgradeSSE41Function(Function* F, Intrinsic::ID IID,
+ Function *&NewFn) {
+ // Check whether this is an old version of the function, which received
+ // v4f32 arguments.
+ Type *Arg0Type = F->getFunctionType()->getParamType(0);
+ if (Arg0Type != VectorType::get(Type::getFloatTy(F->getContext()), 4))
+ return false;
+
+ // Yes, it's old, replace it with new version.
+ F->setName(F->getName() + ".old");
+ NewFn = Intrinsic::getDeclaration(F->getParent(), IID);
+ return true;
+}
static bool UpgradeIntrinsicFunction1(Function *F, Function *&NewFn) {
assert(F && "Illegal to upgrade a non-existent Function.");
return false;
Name = Name.substr(5); // Strip off "llvm."
- FunctionType *FTy = F->getFunctionType();
- Module *M = F->getParent();
-
switch (Name[0]) {
default: break;
- case 'a':
- if (Name.startswith("atomic.cmp.swap") ||
- Name.startswith("atomic.swap") ||
- Name.startswith("atomic.load.add") ||
- Name.startswith("atomic.load.sub") ||
- Name.startswith("atomic.load.and") ||
- Name.startswith("atomic.load.nand") ||
- Name.startswith("atomic.load.or") ||
- Name.startswith("atomic.load.xor") ||
- Name.startswith("atomic.load.max") ||
- Name.startswith("atomic.load.min") ||
- Name.startswith("atomic.load.umax") ||
- Name.startswith("atomic.load.umin"))
+ case 'a': {
+ if (Name.startswith("arm.neon.vclz")) {
+ Type* args[2] = {
+ F->arg_begin()->getType(),
+ Type::getInt1Ty(F->getContext())
+ };
+ // Can't use Intrinsic::getDeclaration here as it adds a ".i1" to
+ // the end of the name. Change name from llvm.arm.neon.vclz.* to
+ // llvm.ctlz.*
+ FunctionType* fType = FunctionType::get(F->getReturnType(), args, false);
+ NewFn = Function::Create(fType, F->getLinkage(),
+ "llvm.ctlz." + Name.substr(14), F->getParent());
return true;
- case 'i':
- // This upgrades the old llvm.init.trampoline to the new
- // llvm.init.trampoline and llvm.adjust.trampoline pair.
- if (Name == "init.trampoline") {
- // The new llvm.init.trampoline returns nothing.
- if (FTy->getReturnType()->isVoidTy())
- break;
-
- assert(FTy->getNumParams() == 3 && "old init.trampoline takes 3 args!");
-
- // Change the name of the old intrinsic so that we can play with its type.
- std::string NameTmp = F->getName();
- F->setName("");
- NewFn = cast<Function>(M->getOrInsertFunction(
- NameTmp,
- Type::getVoidTy(M->getContext()),
- FTy->getParamType(0), FTy->getParamType(1),
- FTy->getParamType(2), (Type *)0));
+ }
+ if (Name.startswith("arm.neon.vcnt")) {
+ NewFn = Intrinsic::getDeclaration(F->getParent(), Intrinsic::ctpop,
+ F->arg_begin()->getType());
return true;
}
- case 'm':
- if (Name == "memory.barrier")
+ break;
+ }
+ case 'c': {
+ if (Name.startswith("ctlz.") && F->arg_size() == 1) {
+ F->setName(Name + ".old");
+ NewFn = Intrinsic::getDeclaration(F->getParent(), Intrinsic::ctlz,
+ F->arg_begin()->getType());
return true;
- case 'p':
- // This upgrades the llvm.prefetch intrinsic to accept one more parameter,
- // which is a instruction / data cache identifier. The old version only
- // implicitly accepted the data version.
- if (Name == "prefetch") {
- // Don't do anything if it has the correct number of arguments already
- if (FTy->getNumParams() == 4)
- break;
-
- assert(FTy->getNumParams() == 3 && "old prefetch takes 3 args!");
- // We first need to change the name of the old (bad) intrinsic, because
- // its type is incorrect, but we cannot overload that name. We
- // arbitrarily unique it here allowing us to construct a correctly named
- // and typed function below.
- std::string NameTmp = F->getName();
- F->setName("");
- NewFn = cast<Function>(M->getOrInsertFunction(NameTmp,
- FTy->getReturnType(),
- FTy->getParamType(0),
- FTy->getParamType(1),
- FTy->getParamType(2),
- FTy->getParamType(2),
- (Type*)0));
+ }
+ if (Name.startswith("cttz.") && F->arg_size() == 1) {
+ F->setName(Name + ".old");
+ NewFn = Intrinsic::getDeclaration(F->getParent(), Intrinsic::cttz,
+ F->arg_begin()->getType());
return true;
}
-
break;
+ }
case 'x': {
- const char *NewFnName = NULL;
- // This fixes the poorly named crc32 intrinsics.
- if (Name == "x86.sse42.crc32.8")
- NewFnName = "llvm.x86.sse42.crc32.32.8";
- else if (Name == "x86.sse42.crc32.16")
- NewFnName = "llvm.x86.sse42.crc32.32.16";
- else if (Name == "x86.sse42.crc32.32")
- NewFnName = "llvm.x86.sse42.crc32.32.32";
- else if (Name == "x86.sse42.crc64.8")
- NewFnName = "llvm.x86.sse42.crc32.64.8";
- else if (Name == "x86.sse42.crc64.64")
- NewFnName = "llvm.x86.sse42.crc32.64.64";
-
- if (NewFnName) {
- F->setName(NewFnName);
- NewFn = F;
+ if (Name.startswith("x86.sse2.pcmpeq.") ||
+ Name.startswith("x86.sse2.pcmpgt.") ||
+ Name.startswith("x86.avx2.pcmpeq.") ||
+ Name.startswith("x86.avx2.pcmpgt.") ||
+ Name.startswith("x86.avx.vpermil.") ||
+ Name == "x86.avx.movnt.dq.256" ||
+ Name == "x86.avx.movnt.pd.256" ||
+ Name == "x86.avx.movnt.ps.256" ||
+ (Name.startswith("x86.xop.vpcom") && F->arg_size() == 2)) {
+ NewFn = 0;
return true;
}
-
- // Calls to these instructions are transformed into unaligned loads.
- if (Name == "x86.sse.loadu.ps" || Name == "x86.sse2.loadu.dq" ||
- Name == "x86.sse2.loadu.pd")
+ // SSE4.1 ptest functions may have an old signature.
+ if (Name.startswith("x86.sse41.ptest")) {
+ if (Name == "x86.sse41.ptestc")
+ return UpgradeSSE41Function(F, Intrinsic::x86_sse41_ptestc, NewFn);
+ if (Name == "x86.sse41.ptestz")
+ return UpgradeSSE41Function(F, Intrinsic::x86_sse41_ptestz, NewFn);
+ if (Name == "x86.sse41.ptestnzc")
+ return UpgradeSSE41Function(F, Intrinsic::x86_sse41_ptestnzc, NewFn);
+ }
+ // frcz.ss/sd may need to have an argument dropped
+ if (Name.startswith("x86.xop.vfrcz.ss") && F->arg_size() == 2) {
+ F->setName(Name + ".old");
+ NewFn = Intrinsic::getDeclaration(F->getParent(),
+ Intrinsic::x86_xop_vfrcz_ss);
return true;
-
- // Calls to these instructions are transformed into nontemporal stores.
- if (Name == "x86.sse.movnt.ps" || Name == "x86.sse2.movnt.dq" ||
- Name == "x86.sse2.movnt.pd" || Name == "x86.sse2.movnt.i")
+ }
+ if (Name.startswith("x86.xop.vfrcz.sd") && F->arg_size() == 2) {
+ F->setName(Name + ".old");
+ NewFn = Intrinsic::getDeclaration(F->getParent(),
+ Intrinsic::x86_xop_vfrcz_sd);
return true;
-
+ }
+ // Fix the FMA4 intrinsics to remove the 4
+ if (Name.startswith("x86.fma4.")) {
+ F->setName("llvm.x86.fma" + Name.substr(8));
+ NewFn = F;
+ return true;
+ }
break;
}
}
- // This may not belong here. This function is effectively being overloaded
- // to both detect an intrinsic which needs upgrading, and to provide the
- // upgraded form of the intrinsic. We should perhaps have two separate
+ // This may not belong here. This function is effectively being overloaded
+ // to both detect an intrinsic which needs upgrading, and to provide the
+ // upgraded form of the intrinsic. We should perhaps have two separate
// functions for this.
return false;
}
return false;
}
-// UpgradeIntrinsicCall - Upgrade a call to an old intrinsic to be a call the
-// upgraded intrinsic. All argument and return casting must be provided in
+// UpgradeIntrinsicCall - Upgrade a call to an old intrinsic to be a call the
+// upgraded intrinsic. All argument and return casting must be provided in
// order to seamlessly integrate with existing context.
void llvm::UpgradeIntrinsicCall(CallInst *CI, Function *NewFn) {
Function *F = CI->getCalledFunction();
LLVMContext &C = CI->getContext();
- ImmutableCallSite CS(CI);
+ IRBuilder<> Builder(C);
+ Builder.SetInsertPoint(CI->getParent(), CI);
- assert(F && "CallInst has no function associated with it.");
+ assert(F && "Intrinsic call is not direct?");
if (!NewFn) {
- if (F->getName() == "llvm.x86.sse.loadu.ps" ||
- F->getName() == "llvm.x86.sse2.loadu.dq" ||
- F->getName() == "llvm.x86.sse2.loadu.pd") {
- // Convert to a native, unaligned load.
- Type *VecTy = CI->getType();
- 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); // Unaligned load.
- BC = Builder.CreateBitCast(LI, VecTy, "new.cast");
-
- // Fix up all the uses with our new load.
- if (!CI->use_empty())
- CI->replaceAllUsesWith(BC);
-
- // Remove intrinsic.
- 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") {
+ // Get the Function's name.
+ StringRef Name = F->getName();
+
+ Value *Rep;
+ // Upgrade packed integer vector compares intrinsics to compare instructions
+ if (Name.startswith("llvm.x86.sse2.pcmpeq.") ||
+ Name.startswith("llvm.x86.avx2.pcmpeq.")) {
+ Rep = Builder.CreateICmpEQ(CI->getArgOperand(0), CI->getArgOperand(1),
+ "pcmpeq");
+ // need to sign extend since icmp returns vector of i1
+ Rep = Builder.CreateSExt(Rep, CI->getType(), "");
+ } else if (Name.startswith("llvm.x86.sse2.pcmpgt.") ||
+ Name.startswith("llvm.x86.avx2.pcmpgt.")) {
+ Rep = Builder.CreateICmpSGT(CI->getArgOperand(0), CI->getArgOperand(1),
+ "pcmpgt");
+ // need to sign extend since icmp returns vector of i1
+ Rep = Builder.CreateSExt(Rep, CI->getType(), "");
+ } else if (Name == "llvm.x86.avx.movnt.dq.256" ||
+ Name == "llvm.x86.avx.movnt.ps.256" ||
+ Name == "llvm.x86.avx.movnt.pd.256") {
IRBuilder<> Builder(C);
Builder.SetInsertPoint(CI->getParent(), CI);
// Remove intrinsic.
CI->eraseFromParent();
- } else if (F->getName().startswith("llvm.atomic.cmp.swap")) {
- IRBuilder<> Builder(C);
- Builder.SetInsertPoint(CI->getParent(), CI);
- Value *Val = Builder.CreateAtomicCmpXchg(CI->getArgOperand(0),
- CI->getArgOperand(1),
- CI->getArgOperand(2),
- Monotonic);
-
- // Replace intrinsic.
- Val->takeName(CI);
- if (!CI->use_empty())
- CI->replaceAllUsesWith(Val);
- CI->eraseFromParent();
- } else if (F->getName().startswith("llvm.atomic")) {
- IRBuilder<> Builder(C);
- Builder.SetInsertPoint(CI->getParent(), CI);
-
- AtomicRMWInst::BinOp Op;
- if (F->getName().startswith("llvm.atomic.swap"))
- Op = AtomicRMWInst::Xchg;
- else if (F->getName().startswith("llvm.atomic.load.add"))
- Op = AtomicRMWInst::Add;
- else if (F->getName().startswith("llvm.atomic.load.sub"))
- Op = AtomicRMWInst::Sub;
- else if (F->getName().startswith("llvm.atomic.load.and"))
- Op = AtomicRMWInst::And;
- else if (F->getName().startswith("llvm.atomic.load.nand"))
- Op = AtomicRMWInst::Nand;
- else if (F->getName().startswith("llvm.atomic.load.or"))
- Op = AtomicRMWInst::Or;
- else if (F->getName().startswith("llvm.atomic.load.xor"))
- Op = AtomicRMWInst::Xor;
- else if (F->getName().startswith("llvm.atomic.load.max"))
- Op = AtomicRMWInst::Max;
- else if (F->getName().startswith("llvm.atomic.load.min"))
- Op = AtomicRMWInst::Min;
- else if (F->getName().startswith("llvm.atomic.load.umax"))
- Op = AtomicRMWInst::UMax;
- else if (F->getName().startswith("llvm.atomic.load.umin"))
- Op = AtomicRMWInst::UMin;
+ return;
+ } else if (Name.startswith("llvm.x86.xop.vpcom")) {
+ Intrinsic::ID intID;
+ if (Name.endswith("ub"))
+ intID = Intrinsic::x86_xop_vpcomub;
+ else if (Name.endswith("uw"))
+ intID = Intrinsic::x86_xop_vpcomuw;
+ else if (Name.endswith("ud"))
+ intID = Intrinsic::x86_xop_vpcomud;
+ else if (Name.endswith("uq"))
+ intID = Intrinsic::x86_xop_vpcomuq;
+ else if (Name.endswith("b"))
+ intID = Intrinsic::x86_xop_vpcomb;
+ else if (Name.endswith("w"))
+ intID = Intrinsic::x86_xop_vpcomw;
+ else if (Name.endswith("d"))
+ intID = Intrinsic::x86_xop_vpcomd;
+ else if (Name.endswith("q"))
+ intID = Intrinsic::x86_xop_vpcomq;
else
- llvm_unreachable("Unknown atomic");
-
- Value *Val = Builder.CreateAtomicRMW(Op, CI->getArgOperand(0),
- CI->getArgOperand(1),
- Monotonic);
-
- // Replace intrinsic.
- Val->takeName(CI);
- if (!CI->use_empty())
- CI->replaceAllUsesWith(Val);
- CI->eraseFromParent();
- } else if (F->getName() == "llvm.memory.barrier") {
- IRBuilder<> Builder(C);
- Builder.SetInsertPoint(CI->getParent(), CI);
-
- // Note that this conversion ignores the "device" bit; it was not really
- // well-defined, and got abused because nobody paid enough attention to
- // get it right. In practice, this probably doesn't matter; application
- // code generally doesn't need anything stronger than
- // SequentiallyConsistent (and realistically, SequentiallyConsistent
- // is lowered to a strong enough barrier for almost anything).
-
- if (cast<ConstantInt>(CI->getArgOperand(1))->getZExtValue())
- Builder.CreateFence(SequentiallyConsistent);
- else if (!cast<ConstantInt>(CI->getArgOperand(0))->getZExtValue())
- Builder.CreateFence(Release);
- else if (!cast<ConstantInt>(CI->getArgOperand(3))->getZExtValue())
- Builder.CreateFence(Acquire);
+ llvm_unreachable("Unknown suffix");
+
+ Name = Name.substr(18); // strip off "llvm.x86.xop.vpcom"
+ unsigned Imm;
+ if (Name.startswith("lt"))
+ Imm = 0;
+ else if (Name.startswith("le"))
+ Imm = 1;
+ else if (Name.startswith("gt"))
+ Imm = 2;
+ else if (Name.startswith("ge"))
+ Imm = 3;
+ else if (Name.startswith("eq"))
+ Imm = 4;
+ else if (Name.startswith("ne"))
+ Imm = 5;
+ else if (Name.startswith("true"))
+ Imm = 6;
+ else if (Name.startswith("false"))
+ Imm = 7;
else
- Builder.CreateFence(AcquireRelease);
+ llvm_unreachable("Unknown condition");
- // Remove intrinsic.
- CI->eraseFromParent();
+ Function *VPCOM = Intrinsic::getDeclaration(F->getParent(), intID);
+ Rep = Builder.CreateCall3(VPCOM, CI->getArgOperand(0),
+ CI->getArgOperand(1), Builder.getInt8(Imm));
} else {
- llvm_unreachable("Unknown function for CallInst upgrade.");
+ bool PD128 = false, PD256 = false, PS128 = false, PS256 = false;
+ if (Name == "llvm.x86.avx.vpermil.pd.256")
+ PD256 = true;
+ else if (Name == "llvm.x86.avx.vpermil.pd")
+ PD128 = true;
+ else if (Name == "llvm.x86.avx.vpermil.ps.256")
+ PS256 = true;
+ else if (Name == "llvm.x86.avx.vpermil.ps")
+ PS128 = true;
+
+ if (PD256 || PD128 || PS256 || PS128) {
+ Value *Op0 = CI->getArgOperand(0);
+ unsigned Imm = cast<ConstantInt>(CI->getArgOperand(1))->getZExtValue();
+ SmallVector<Constant*, 8> Idxs;
+
+ if (PD128)
+ for (unsigned i = 0; i != 2; ++i)
+ Idxs.push_back(Builder.getInt32((Imm >> i) & 0x1));
+ else if (PD256)
+ for (unsigned l = 0; l != 4; l+=2)
+ for (unsigned i = 0; i != 2; ++i)
+ Idxs.push_back(Builder.getInt32(((Imm >> (l+i)) & 0x1) + l));
+ else if (PS128)
+ for (unsigned i = 0; i != 4; ++i)
+ Idxs.push_back(Builder.getInt32((Imm >> (2 * i)) & 0x3));
+ else if (PS256)
+ for (unsigned l = 0; l != 8; l+=4)
+ for (unsigned i = 0; i != 4; ++i)
+ Idxs.push_back(Builder.getInt32(((Imm >> (2 * i)) & 0x3) + l));
+ else
+ llvm_unreachable("Unexpected function");
+
+ Rep = Builder.CreateShuffleVector(Op0, Op0, ConstantVector::get(Idxs));
+ } else {
+ llvm_unreachable("Unknown function for CallInst upgrade.");
+ }
}
- return;
- }
- switch (NewFn->getIntrinsicID()) {
- case Intrinsic::prefetch: {
- IRBuilder<> Builder(C);
- Builder.SetInsertPoint(CI->getParent(), CI);
- llvm::Type *I32Ty = llvm::Type::getInt32Ty(CI->getContext());
-
- // Add the extra "data cache" argument
- Value *Operands[4] = { CI->getArgOperand(0), CI->getArgOperand(1),
- CI->getArgOperand(2),
- llvm::ConstantInt::get(I32Ty, 1) };
- CallInst *NewCI = CallInst::Create(NewFn, Operands,
- CI->getName(), CI);
- NewCI->setTailCall(CI->isTailCall());
- NewCI->setCallingConv(CI->getCallingConv());
- // Handle any uses of the old CallInst.
- if (!CI->use_empty())
- // Replace all uses of the old call with the new cast which has the
- // correct type.
- CI->replaceAllUsesWith(NewCI);
-
- // Clean up the old call now that it has been completely upgraded.
+ CI->replaceAllUsesWith(Rep);
CI->eraseFromParent();
- break;
+ return;
}
- case Intrinsic::init_trampoline: {
- // Transform
- // %tramp = call i8* llvm.init.trampoline (i8* x, i8* y, i8* z)
- // to
- // call void llvm.init.trampoline (i8* %x, i8* %y, i8* %z)
- // %tramp = call i8* llvm.adjust.trampoline (i8* %x)
+ std::string Name = CI->getName().str();
+ CI->setName(Name + ".old");
- Function *AdjustTrampolineFn =
- cast<Function>(Intrinsic::getDeclaration(F->getParent(),
- Intrinsic::adjust_trampoline));
+ switch (NewFn->getIntrinsicID()) {
+ default:
+ llvm_unreachable("Unknown function for CallInst upgrade.");
+
+ case Intrinsic::ctlz:
+ case Intrinsic::cttz:
+ assert(CI->getNumArgOperands() == 1 &&
+ "Mismatch between function args and call args");
+ CI->replaceAllUsesWith(Builder.CreateCall2(NewFn, CI->getArgOperand(0),
+ Builder.getFalse(), Name));
+ CI->eraseFromParent();
+ return;
- IRBuilder<> Builder(C);
- Builder.SetInsertPoint(CI);
+ case Intrinsic::arm_neon_vclz: {
+ // Change name from llvm.arm.neon.vclz.* to llvm.ctlz.*
+ CI->replaceAllUsesWith(Builder.CreateCall2(NewFn, CI->getArgOperand(0),
+ Builder.getFalse(),
+ "llvm.ctlz." + Name.substr(14)));
+ CI->eraseFromParent();
+ return;
+ }
+ case Intrinsic::ctpop: {
+ CI->replaceAllUsesWith(Builder.CreateCall(NewFn, CI->getArgOperand(0)));
+ CI->eraseFromParent();
+ return;
+ }
- Builder.CreateCall3(NewFn, CI->getArgOperand(0), CI->getArgOperand(1),
- CI->getArgOperand(2));
+ case Intrinsic::x86_xop_vfrcz_ss:
+ case Intrinsic::x86_xop_vfrcz_sd:
+ CI->replaceAllUsesWith(Builder.CreateCall(NewFn, CI->getArgOperand(1),
+ Name));
+ CI->eraseFromParent();
+ return;
- CallInst *AdjustCall = Builder.CreateCall(AdjustTrampolineFn,
- CI->getArgOperand(0),
- CI->getName());
- if (!CI->use_empty())
- CI->replaceAllUsesWith(AdjustCall);
+ case Intrinsic::x86_sse41_ptestc:
+ case Intrinsic::x86_sse41_ptestz:
+ case Intrinsic::x86_sse41_ptestnzc: {
+ // The arguments for these intrinsics used to be v4f32, and changed
+ // to v2i64. This is purely a nop, since those are bitwise intrinsics.
+ // So, the only thing required is a bitcast for both arguments.
+ // First, check the arguments have the old type.
+ Value *Arg0 = CI->getArgOperand(0);
+ if (Arg0->getType() != VectorType::get(Type::getFloatTy(C), 4))
+ return;
+
+ // Old intrinsic, add bitcasts
+ Value *Arg1 = CI->getArgOperand(1);
+
+ Value *BC0 =
+ Builder.CreateBitCast(Arg0,
+ VectorType::get(Type::getInt64Ty(C), 2),
+ "cast");
+ Value *BC1 =
+ Builder.CreateBitCast(Arg1,
+ VectorType::get(Type::getInt64Ty(C), 2),
+ "cast");
+
+ CallInst* NewCall = Builder.CreateCall2(NewFn, BC0, BC1, Name);
+ CI->replaceAllUsesWith(NewCall);
CI->eraseFromParent();
- break;
+ return;
}
}
}
}
}
-/// This function strips all debug info intrinsics, except for llvm.dbg.declare.
-/// If an llvm.dbg.declare intrinsic is invalid, then this function simply
-/// strips that use.
-void llvm::CheckDebugInfoIntrinsics(Module *M) {
- if (Function *FuncStart = M->getFunction("llvm.dbg.func.start")) {
- while (!FuncStart->use_empty())
- cast<CallInst>(FuncStart->use_back())->eraseFromParent();
- FuncStart->eraseFromParent();
- }
-
- if (Function *StopPoint = M->getFunction("llvm.dbg.stoppoint")) {
- while (!StopPoint->use_empty())
- cast<CallInst>(StopPoint->use_back())->eraseFromParent();
- StopPoint->eraseFromParent();
- }
-
- if (Function *RegionStart = M->getFunction("llvm.dbg.region.start")) {
- while (!RegionStart->use_empty())
- cast<CallInst>(RegionStart->use_back())->eraseFromParent();
- RegionStart->eraseFromParent();
- }
-
- if (Function *RegionEnd = M->getFunction("llvm.dbg.region.end")) {
- while (!RegionEnd->use_empty())
- cast<CallInst>(RegionEnd->use_back())->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();
- }
- }
- }
-}
projects / oota-llvm.git / blobdiff