#define DEBUG_TYPE "simplify-libcalls"
#include "llvm/Transforms/Scalar.h"
#include "llvm/Intrinsics.h"
+#include "llvm/LLVMContext.h"
#include "llvm/Module.h"
#include "llvm/Pass.h"
#include "llvm/Support/IRBuilder.h"
#include "llvm/ADT/SmallPtrSet.h"
#include "llvm/ADT/StringMap.h"
#include "llvm/ADT/Statistic.h"
+#include "llvm/ADT/STLExtras.h"
#include "llvm/Support/Compiler.h"
#include "llvm/Support/Debug.h"
+#include "llvm/Support/raw_ostream.h"
#include "llvm/Config/config.h"
using namespace llvm;
protected:
Function *Caller;
const TargetData *TD;
+ LLVMContext* Context;
public:
LibCallOptimization() { }
virtual ~LibCallOptimization() {}
Value *OptimizeCall(CallInst *CI, const TargetData &TD, IRBuilder<> &B) {
Caller = CI->getParent()->getParent();
this->TD = &TD;
+ if (CI->getCalledFunction())
+ Context = &CI->getCalledFunction()->getContext();
return CallOptimizer(CI->getCalledFunction(), CI, B);
}
/// CastToCStr - Return V if it is an i8*, otherwise cast it to i8*.
Value *LibCallOptimization::CastToCStr(Value *V, IRBuilder<> &B) {
- return B.CreateBitCast(V, PointerType::getUnqual(Type::Int8Ty), "cstr");
+ return
+ B.CreateBitCast(V, PointerType::getUnqual(Type::Int8Ty), "cstr");
}
/// EmitStrLen - Emit a call to the strlen function to the builder, for the
Constant *StrLen =M->getOrInsertFunction("strlen", AttrListPtr::get(AWI, 2),
TD->getIntPtrType(),
- PointerType::getUnqual(Type::Int8Ty),
+ PointerType::getUnqual(Type::Int8Ty),
NULL);
- return B.CreateCall(StrLen, CastToCStr(Ptr, B), "strlen");
+ CallInst *CI = B.CreateCall(StrLen, CastToCStr(Ptr, B), "strlen");
+ if (const Function *F = dyn_cast<Function>(StrLen->stripPointerCasts()))
+ CI->setCallingConv(F->getCallingConv());
+
+ return CI;
}
/// EmitMemCpy - Emit a call to the memcpy function to the builder. This always
AWI = AttributeWithIndex::get(~0u, Attribute::ReadOnly | Attribute::NoUnwind);
Value *MemChr = M->getOrInsertFunction("memchr", AttrListPtr::get(&AWI, 1),
- PointerType::getUnqual(Type::Int8Ty),
- PointerType::getUnqual(Type::Int8Ty),
+ PointerType::getUnqual(Type::Int8Ty),
+ PointerType::getUnqual(Type::Int8Ty),
Type::Int32Ty, TD->getIntPtrType(),
NULL);
- return B.CreateCall3(MemChr, CastToCStr(Ptr, B), Val, Len, "memchr");
+ CallInst *CI = B.CreateCall3(MemChr, CastToCStr(Ptr, B), Val, Len, "memchr");
+
+ if (const Function *F = dyn_cast<Function>(MemChr->stripPointerCasts()))
+ CI->setCallingConv(F->getCallingConv());
+
+ return CI;
}
/// EmitMemCmp - Emit a call to the memcmp function.
Value *MemCmp = M->getOrInsertFunction("memcmp", AttrListPtr::get(AWI, 3),
Type::Int32Ty,
- PointerType::getUnqual(Type::Int8Ty),
- PointerType::getUnqual(Type::Int8Ty),
+ PointerType::getUnqual(Type::Int8Ty),
+ PointerType::getUnqual(Type::Int8Ty),
TD->getIntPtrType(), NULL);
- return B.CreateCall3(MemCmp, CastToCStr(Ptr1, B), CastToCStr(Ptr2, B),
- Len, "memcmp");
+ CallInst *CI = B.CreateCall3(MemCmp, CastToCStr(Ptr1, B), CastToCStr(Ptr2, B),
+ Len, "memcmp");
+
+ if (const Function *F = dyn_cast<Function>(MemCmp->stripPointerCasts()))
+ CI->setCallingConv(F->getCallingConv());
+
+ return CI;
}
/// EmitMemSet - Emit a call to the memset function
NameBuffer[NameLen+1] = 0;
Name = NameBuffer;
}
-
+
Module *M = Caller->getParent();
- Value *Callee = M->getOrInsertFunction(Name, Op->getType(),
+ Value *Callee = M->getOrInsertFunction(Name, Op->getType(),
Op->getType(), NULL);
- return B.CreateCall(Callee, Op, Name);
+ CallInst *CI = B.CreateCall(Callee, Op, Name);
+
+ if (const Function *F = dyn_cast<Function>(Callee->stripPointerCasts()))
+ CI->setCallingConv(F->getCallingConv());
+
+ return CI;
}
/// EmitPutChar - Emit a call to the putchar function. This assumes that Char
/// is an integer.
void LibCallOptimization::EmitPutChar(Value *Char, IRBuilder<> &B) {
Module *M = Caller->getParent();
- Value *F = M->getOrInsertFunction("putchar", Type::Int32Ty,
- Type::Int32Ty, NULL);
- B.CreateCall(F, B.CreateIntCast(Char, Type::Int32Ty, "chari"), "putchar");
+ Value *PutChar = M->getOrInsertFunction("putchar", Type::Int32Ty,
+ Type::Int32Ty, NULL);
+ CallInst *CI = B.CreateCall(PutChar,
+ B.CreateIntCast(Char, Type::Int32Ty, "chari"),
+ "putchar");
+
+ if (const Function *F = dyn_cast<Function>(PutChar->stripPointerCasts()))
+ CI->setCallingConv(F->getCallingConv());
}
/// EmitPutS - Emit a call to the puts function. This assumes that Str is
AWI[0] = AttributeWithIndex::get(1, Attribute::NoCapture);
AWI[1] = AttributeWithIndex::get(~0u, Attribute::NoUnwind);
- Value *F = M->getOrInsertFunction("puts", AttrListPtr::get(AWI, 2),
- Type::Int32Ty,
- PointerType::getUnqual(Type::Int8Ty), NULL);
- B.CreateCall(F, CastToCStr(Str, B), "puts");
+ Value *PutS = M->getOrInsertFunction("puts", AttrListPtr::get(AWI, 2),
+ Type::Int32Ty,
+ PointerType::getUnqual(Type::Int8Ty),
+ NULL);
+ CallInst *CI = B.CreateCall(PutS, CastToCStr(Str, B), "puts");
+ if (const Function *F = dyn_cast<Function>(PutS->stripPointerCasts()))
+ CI->setCallingConv(F->getCallingConv());
+
}
/// EmitFPutC - Emit a call to the fputc function. This assumes that Char is
if (isa<PointerType>(File->getType()))
F = M->getOrInsertFunction("fputc", AttrListPtr::get(AWI, 2), Type::Int32Ty,
Type::Int32Ty, File->getType(), NULL);
-
else
F = M->getOrInsertFunction("fputc", Type::Int32Ty, Type::Int32Ty,
File->getType(), NULL);
Char = B.CreateIntCast(Char, Type::Int32Ty, "chari");
- B.CreateCall2(F, Char, File, "fputc");
+ CallInst *CI = B.CreateCall2(F, Char, File, "fputc");
+
+ if (const Function *Fn = dyn_cast<Function>(F->stripPointerCasts()))
+ CI->setCallingConv(Fn->getCallingConv());
}
/// EmitFPutS - Emit a call to the puts function. Str is required to be a
F = M->getOrInsertFunction("fputs", Type::Int32Ty,
PointerType::getUnqual(Type::Int8Ty),
File->getType(), NULL);
- B.CreateCall2(F, CastToCStr(Str, B), File, "fputs");
+ CallInst *CI = B.CreateCall2(F, CastToCStr(Str, B), File, "fputs");
+
+ if (const Function *Fn = dyn_cast<Function>(F->stripPointerCasts()))
+ CI->setCallingConv(Fn->getCallingConv());
}
/// EmitFWrite - Emit a call to the fwrite function. This assumes that Ptr is
PointerType::getUnqual(Type::Int8Ty),
TD->getIntPtrType(), TD->getIntPtrType(),
File->getType(), NULL);
- B.CreateCall4(F, CastToCStr(Ptr, B), Size,
- ConstantInt::get(TD->getIntPtrType(), 1), File);
+ CallInst *CI = B.CreateCall4(F, CastToCStr(Ptr, B), Size,
+ ConstantInt::get(TD->getIntPtrType(), 1), File);
+
+ if (const Function *Fn = dyn_cast<Function>(F->stripPointerCasts()))
+ CI->setCallingConv(Fn->getCallingConv());
}
//===----------------------------------------------------------------------===//
// Verify the caller is main, and that the result type of main matches the
// argument type of exit.
- if (!Caller->isName("main") || !Caller->hasExternalLinkage() ||
+ if (Caller->getName() != "main" || !Caller->hasExternalLinkage() ||
Caller->getReturnType() != CI->getOperand(1)->getType())
return 0;
TerminatorInst *OldTI = CI->getParent()->getTerminator();
-
- // Create the return after the call.
- ReturnInst *RI = B.CreateRet(CI->getOperand(1));
// Drop all successor phi node entries.
for (unsigned i = 0, e = OldTI->getNumSuccessors(); i != e; ++i)
OldTI->getSuccessor(i)->removePredecessor(CI->getParent());
-
- // Erase all instructions from after our return instruction until the end of
- // the block.
- BasicBlock::iterator FirstDead = RI; ++FirstDead;
- CI->getParent()->getInstList().erase(FirstDead, CI->getParent()->end());
+
+ // Remove all instructions after the exit.
+ BasicBlock::iterator Dead = CI, E = OldTI; ++Dead;
+ while (Dead != E) {
+ BasicBlock::iterator Next = next(Dead);
+ if (Dead->getType() != Type::VoidTy)
+ Dead->replaceAllUsesWith(UndefValue::get(Dead->getType()));
+ Dead->eraseFromParent();
+ Dead = Next;
+ }
+
+ // Insert a return instruction.
+ OldTI->eraseFromParent();
+ B.SetInsertPoint(B.GetInsertBlock());
+ B.CreateRet(CI->getOperand(1));
+
return CI;
}
};
// We have enough information to now generate the memcpy call to do the
// concatenation for us. Make a memcpy to copy the nul byte with align = 1.
- EmitMemCpy(CpyDst, Src, ConstantInt::get(TD->getIntPtrType(), Len+1), 1, B);
+ EmitMemCpy(CpyDst, Src,
+ ConstantInt::get(TD->getIntPtrType(), Len+1), 1, B);
}
};
// strncat(x, s, c) -> strcat(x, s)
// s is constant so the strcat can be optimized further
- EmitStrLenMemCpy(Src, Dst, Len, B);
+ EmitStrLenMemCpy(Src, Dst, SrcLen, B);
return Dst;
}
};
uint64_t i = 0;
while (1) {
if (i == Str.size()) // Didn't find the char. strchr returns null.
- return Constant::getNullValue(CI->getType());
+ return Context->getNullValue(CI->getType());
// Did we find our match?
if (Str[i] == CharValue)
break;
// strcmp(x, y) -> cnst (if both x and y are constant strings)
if (HasStr1 && HasStr2)
- return ConstantInt::get(CI->getType(), strcmp(Str1.c_str(),Str2.c_str()));
+ return ConstantInt::get(CI->getType(),
+ strcmp(Str1.c_str(),Str2.c_str()));
// strcmp(P, "x") -> memcmp(P, "x", 2)
uint64_t Len1 = GetStringLength(Str1P);
uint64_t Len2 = GetStringLength(Str2P);
- if (Len1 || Len2) {
- // Choose the smallest Len excluding 0 which means 'unknown'.
- if (!Len1 || (Len2 && Len2 < Len1))
- Len1 = Len2;
+ if (Len1 && Len2) {
return EmitMemCmp(Str1P, Str2P,
- ConstantInt::get(TD->getIntPtrType(), Len1), B);
+ ConstantInt::get(TD->getIntPtrType(),
+ std::min(Len1, Len2)), B);
}
return 0;
// We have enough information to now generate the memcpy call to do the
// concatenation for us. Make a memcpy to copy the nul byte with align = 1.
- EmitMemCpy(Dst, Src, ConstantInt::get(TD->getIntPtrType(), Len), 1, B);
+ EmitMemCpy(Dst, Src,
+ ConstantInt::get(TD->getIntPtrType(), Len), 1, B);
return Dst;
}
};
if (Len > SrcLen+1) return 0;
// strncpy(x, s, c) -> memcpy(x, s, c, 1) [s and c are constant]
- EmitMemCpy(Dst, Src, ConstantInt::get(TD->getIntPtrType(), Len), 1, B);
+ EmitMemCpy(Dst, Src,
+ ConstantInt::get(TD->getIntPtrType(), Len), 1, B);
return Dst;
}
Value *LHS = CI->getOperand(1), *RHS = CI->getOperand(2);
if (LHS == RHS) // memcmp(s,s,x) -> 0
- return Constant::getNullValue(CI->getType());
+ return Context->getNullValue(CI->getType());
// Make sure we have a constant length.
ConstantInt *LenC = dyn_cast<ConstantInt>(CI->getOperand(3));
uint64_t Len = LenC->getZExtValue();
if (Len == 0) // memcmp(s1,s2,0) -> 0
- return Constant::getNullValue(CI->getType());
+ return Context->getNullValue(CI->getType());
if (Len == 1) { // memcmp(S1,S2,1) -> *LHS - *RHS
Value *LHSV = B.CreateLoad(CastToCStr(LHS, B), "lhsv");
Value *RHSV = B.CreateLoad(CastToCStr(RHS, B), "rhsv");
- return B.CreateZExt(B.CreateSub(LHSV, RHSV, "chardiff"), CI->getType());
+ return B.CreateSExt(B.CreateSub(LHSV, RHSV, "chardiff"), CI->getType());
}
// memcmp(S1,S2,2) != 0 -> (*(short*)LHS ^ *(short*)RHS) != 0
const FunctionType *FT = Callee->getFunctionType();
if (FT->getNumParams() != 3 || FT->getReturnType() != FT->getParamType(0) ||
!isa<PointerType>(FT->getParamType(0)) ||
- FT->getParamType(1) != TD->getIntPtrType() ||
+ !isa<IntegerType>(FT->getParamType(1)) ||
FT->getParamType(2) != TD->getIntPtrType())
return 0;
// memset(p, v, n) -> llvm.memset(p, v, n, 1)
- Value *Val = B.CreateTrunc(CI->getOperand(2), Type::Int8Ty);
+ Value *Val = B.CreateIntCast(CI->getOperand(2), Type::Int8Ty, false);
EmitMemSet(CI->getOperand(1), Val, CI->getOperand(3), B);
return CI->getOperand(1);
}
if (Op2C->isExactlyValue(1.0)) // pow(x, 1.0) -> x
return Op1;
if (Op2C->isExactlyValue(2.0)) // pow(x, 2.0) -> x*x
- return B.CreateMul(Op1, Op1, "pow2");
+ return B.CreateFMul(Op1, Op1, "pow2");
if (Op2C->isExactlyValue(-1.0)) // pow(x, -1.0) -> 1.0/x
- return B.CreateFDiv(ConstantFP::get(CI->getType(), 1.0), Op1, "powrecip");
+ return B.CreateFDiv(ConstantFP::get(CI->getType(), 1.0),
+ Op1, "powrecip");
return 0;
}
};
if (OpC->getOperand(0)->getType()->getPrimitiveSizeInBits() < 32)
LdExpArg = B.CreateZExt(OpC->getOperand(0), Type::Int32Ty, "tmp");
}
-
+
if (LdExpArg) {
const char *Name;
if (Op->getType() == Type::FloatTy)
else
Name = "ldexpl";
- Constant *One = ConstantFP::get(APFloat(1.0f));
+ Constant *One = ConstantFP::get(*Context, APFloat(1.0f));
if (Op->getType() != Type::FloatTy)
One = ConstantExpr::getFPExtend(One, Op->getType());
Module *M = Caller->getParent();
Value *Callee = M->getOrInsertFunction(Name, Op->getType(),
Op->getType(), Type::Int32Ty,NULL);
- return B.CreateCall2(Callee, One, LdExpArg);
+ CallInst *CI = B.CreateCall2(Callee, One, LdExpArg);
+ if (const Function *F = dyn_cast<Function>(Callee->stripPointerCasts()))
+ CI->setCallingConv(F->getCallingConv());
+
+ return CI;
}
return 0;
}
};
-
//===---------------------------------------===//
// Double -> Float Shrinking Optimizations for Unary Functions like 'floor'
if (FT->getNumParams() != 1 || FT->getReturnType() != Type::DoubleTy ||
FT->getParamType(0) != Type::DoubleTy)
return 0;
-
+
// If this is something like 'floor((double)floatval)', convert to floorf.
FPExtInst *Cast = dyn_cast<FPExtInst>(CI->getOperand(1));
if (Cast == 0 || Cast->getOperand(0)->getType() != Type::FloatTy)
// floor((double)floatval) -> (double)floorf(floatval)
Value *V = Cast->getOperand(0);
- V = EmitUnaryFloatFnCall(V, Callee->getNameStart(), B);
+ V = EmitUnaryFloatFnCall(V, Callee->getName().data(), B);
return B.CreateFPExt(V, Type::DoubleTy);
}
};
// Constant fold.
if (ConstantInt *CI = dyn_cast<ConstantInt>(Op)) {
if (CI->getValue() == 0) // ffs(0) -> 0.
- return Constant::getNullValue(CI->getType());
+ return Context->getNullValue(CI->getType());
return ConstantInt::get(Type::Int32Ty, // ffs(c) -> cttz(c)+1
CI->getValue().countTrailingZeros()+1);
}
Value *F = Intrinsic::getDeclaration(Callee->getParent(),
Intrinsic::cttz, &ArgType, 1);
Value *V = B.CreateCall(F, Op, "cttz");
- V = B.CreateAdd(V, ConstantInt::get(Type::Int32Ty, 1), "tmp");
+ V = B.CreateAdd(V, ConstantInt::get(V->getType(), 1), "tmp");
V = B.CreateIntCast(V, Type::Int32Ty, false, "tmp");
- Value *Cond = B.CreateICmpNE(Op, Constant::getNullValue(ArgType), "tmp");
+ Value *Cond = B.CreateICmpNE(Op, Context->getNullValue(ArgType), "tmp");
return B.CreateSelect(Cond, V, ConstantInt::get(Type::Int32Ty, 0));
}
};
// isdigit(c) -> (c-'0') <u 10
Value *Op = CI->getOperand(1);
- Op = B.CreateSub(Op, ConstantInt::get(Type::Int32Ty, '0'), "isdigittmp");
- Op = B.CreateICmpULT(Op, ConstantInt::get(Type::Int32Ty, 10), "isdigit");
+ Op = B.CreateSub(Op, ConstantInt::get(Type::Int32Ty, '0'),
+ "isdigittmp");
+ Op = B.CreateICmpULT(Op, ConstantInt::get(Type::Int32Ty, 10),
+ "isdigit");
return B.CreateZExt(Op, CI->getType());
}
};
// isascii(c) -> c <u 128
Value *Op = CI->getOperand(1);
- Op = B.CreateICmpULT(Op, ConstantInt::get(Type::Int32Ty, 128), "isascii");
+ Op = B.CreateICmpULT(Op, ConstantInt::get(Type::Int32Ty, 128),
+ "isascii");
return B.CreateZExt(Op, CI->getType());
}
};
// abs(x) -> x >s -1 ? x : -x
Value *Op = CI->getOperand(1);
- Value *Pos = B.CreateICmpSGT(Op,ConstantInt::getAllOnesValue(Op->getType()),
+ Value *Pos = B.CreateICmpSGT(Op,
+ Context->getAllOnesValue(Op->getType()),
"ispos");
Value *Neg = B.CreateNeg(Op, "neg");
return B.CreateSelect(Pos, Op, Neg);
return 0;
// isascii(c) -> c & 0x7f
- return B.CreateAnd(CI->getOperand(1), ConstantInt::get(CI->getType(),0x7F));
+ return B.CreateAnd(CI->getOperand(1),
+ ConstantInt::get(CI->getType(),0x7F));
}
};
// Empty format string -> noop.
if (FormatStr.empty()) // Tolerate printf's declared void.
- return CI->use_empty() ? (Value*)CI : ConstantInt::get(CI->getType(), 0);
+ return CI->use_empty() ? (Value*)CI :
+ ConstantInt::get(CI->getType(), 0);
// printf("x") -> putchar('x'), even for '%'.
if (FormatStr.size() == 1) {
EmitPutChar(ConstantInt::get(Type::Int32Ty, FormatStr[0]), B);
- return CI->use_empty() ? (Value*)CI : ConstantInt::get(CI->getType(), 1);
+ return CI->use_empty() ? (Value*)CI :
+ ConstantInt::get(CI->getType(), 1);
}
// printf("foo\n") --> puts("foo")
// pass to be run after this pass, to merge duplicate strings.
FormatStr.erase(FormatStr.end()-1);
Constant *C = ConstantArray::get(FormatStr, true);
- C = new GlobalVariable(C->getType(), true,GlobalVariable::InternalLinkage,
- C, "str", Callee->getParent());
+ C = new GlobalVariable(*Callee->getParent(), C->getType(), true,
+ GlobalVariable::InternalLinkage, C, "str");
EmitPutS(C, B);
return CI->use_empty() ? (Value*)CI :
- ConstantInt::get(CI->getType(), FormatStr.size()+1);
+ ConstantInt::get(CI->getType(), FormatStr.size()+1);
}
// Optimize specific format strings.
if (FormatStr == "%c" && CI->getNumOperands() > 2 &&
isa<IntegerType>(CI->getOperand(2)->getType())) {
EmitPutChar(CI->getOperand(2), B);
- return CI->use_empty() ? (Value*)CI : ConstantInt::get(CI->getType(), 1);
+ return CI->use_empty() ? (Value*)CI :
+ ConstantInt::get(CI->getType(), 1);
}
// printf("%s\n", str) --> puts(str)
// sprintf(str, fmt) -> llvm.memcpy(str, fmt, strlen(fmt)+1, 1)
EmitMemCpy(CI->getOperand(1), CI->getOperand(2), // Copy the nul byte.
- ConstantInt::get(TD->getIntPtrType(), FormatStr.size()+1),1,B);
+ ConstantInt::get(TD->getIntPtrType(), FormatStr.size()+1),1,B);
return ConstantInt::get(CI->getType(), FormatStr.size());
}
Value *Ptr = CastToCStr(CI->getOperand(1), B);
B.CreateStore(V, Ptr);
Ptr = B.CreateGEP(Ptr, ConstantInt::get(Type::Int32Ty, 1), "nul");
- B.CreateStore(Constant::getNullValue(Type::Int8Ty), Ptr);
+ B.CreateStore(Context->getNullValue(Type::Int8Ty), Ptr);
return ConstantInt::get(CI->getType(), 1);
}
if (!isa<PointerType>(CI->getOperand(3)->getType())) return 0;
Value *Len = EmitStrLen(CI->getOperand(3), B);
- Value *IncLen = B.CreateAdd(Len, ConstantInt::get(Len->getType(), 1),
+ Value *IncLen = B.CreateAdd(Len,
+ ConstantInt::get(Len->getType(), 1),
"leninc");
EmitMemCpy(CI->getOperand(1), CI->getOperand(3), IncLen, 1, B);
// fputs(s,F) --> fwrite(s,1,strlen(s),F)
uint64_t Len = GetStringLength(CI->getOperand(1));
if (!Len) return 0;
- EmitFWrite(CI->getOperand(1), ConstantInt::get(TD->getIntPtrType(), Len-1),
+ EmitFWrite(CI->getOperand(1),
+ ConstantInt::get(TD->getIntPtrType(), Len-1),
CI->getOperand(2), B);
return CI; // Known to have no uses (see above).
}
const TargetData &TD = getAnalysis<TargetData>();
- IRBuilder<> Builder;
+ IRBuilder<> Builder(F.getContext());
bool Changed = false;
for (Function::iterator BB = F.begin(), E = F.end(); BB != E; ++BB) {
continue;
// Ignore unknown calls.
- const char *CalleeName = Callee->getNameStart();
- StringMap<LibCallOptimization*>::iterator OMI =
- Optimizations.find(CalleeName, CalleeName+Callee->getNameLen());
- if (OMI == Optimizations.end()) continue;
+ LibCallOptimization *LCO = Optimizations.lookup(Callee->getName());
+ if (!LCO) continue;
// Set the builder to the instruction after the call.
Builder.SetInsertPoint(BB, I);
// Try to optimize this call.
- Value *Result = OMI->second->OptimizeCall(CI, TD, Builder);
+ Value *Result = LCO->OptimizeCall(CI, TD, Builder);
if (Result == 0) continue;
- DEBUG(DOUT << "SimplifyLibCalls simplified: " << *CI;
- DOUT << " into: " << *Result << "\n");
+ DEBUG(errs() << "SimplifyLibCalls simplified: " << *CI;
+ errs() << " into: " << *Result << "\n");
// Something changed!
Changed = true;
if (!F.isDeclaration())
continue;
- unsigned NameLen = F.getNameLen();
- if (!NameLen)
+ if (!F.hasName())
continue;
const FunctionType *FTy = F.getFunctionType();
- const char *NameStr = F.getNameStart();
- switch (NameStr[0]) {
+ StringRef Name = F.getName();
+ switch (Name[0]) {
case 's':
- if (NameLen == 6 && !strcmp(NameStr, "strlen")) {
+ if (Name == "strlen") {
if (FTy->getNumParams() != 1 ||
!isa<PointerType>(FTy->getParamType(0)))
continue;
setOnlyReadsMemory(F);
setDoesNotThrow(F);
setDoesNotCapture(F, 1);
- } else if ((NameLen == 6 && !strcmp(NameStr, "strcpy")) ||
- (NameLen == 6 && !strcmp(NameStr, "stpcpy")) ||
- (NameLen == 6 && !strcmp(NameStr, "strcat")) ||
- (NameLen == 6 && !strcmp(NameStr, "strtol")) ||
- (NameLen == 6 && !strcmp(NameStr, "strtod")) ||
- (NameLen == 6 && !strcmp(NameStr, "strtof")) ||
- (NameLen == 7 && !strcmp(NameStr, "strtoul")) ||
- (NameLen == 7 && !strcmp(NameStr, "strtoll")) ||
- (NameLen == 7 && !strcmp(NameStr, "strtold")) ||
- (NameLen == 7 && !strcmp(NameStr, "strncat")) ||
- (NameLen == 7 && !strcmp(NameStr, "strncpy")) ||
- (NameLen == 8 && !strcmp(NameStr, "strtoull"))) {
+ } else if (Name == "strcpy" ||
+ Name == "stpcpy" ||
+ Name == "strcat" ||
+ Name == "strtol" ||
+ Name == "strtod" ||
+ Name == "strtof" ||
+ Name == "strtoul" ||
+ Name == "strtoll" ||
+ Name == "strtold" ||
+ Name == "strncat" ||
+ Name == "strncpy" ||
+ Name == "strtoull") {
if (FTy->getNumParams() < 2 ||
!isa<PointerType>(FTy->getParamType(1)))
continue;
setDoesNotThrow(F);
setDoesNotCapture(F, 2);
- } else if (NameLen == 7 && !strcmp(NameStr, "strxfrm")) {
+ } else if (Name == "strxfrm") {
if (FTy->getNumParams() != 3 ||
!isa<PointerType>(FTy->getParamType(0)) ||
!isa<PointerType>(FTy->getParamType(1)))
setDoesNotThrow(F);
setDoesNotCapture(F, 1);
setDoesNotCapture(F, 2);
- } else if ((NameLen == 6 && !strcmp(NameStr, "strcmp")) ||
- (NameLen == 6 && !strcmp(NameStr, "strspn")) ||
- (NameLen == 7 && !strcmp(NameStr, "strncmp")) ||
- (NameLen == 7 && !strcmp(NameStr, "strcspn")) ||
- (NameLen == 7 && !strcmp(NameStr, "strcoll")) ||
- (NameLen == 10 && !strcmp(NameStr, "strcasecmp")) ||
- (NameLen == 11 && !strcmp(NameStr, "strncasecmp"))) {
+ } else if (Name == "strcmp" ||
+ Name == "strspn" ||
+ Name == "strncmp" ||
+ Name ==" strcspn" ||
+ Name == "strcoll" ||
+ Name == "strcasecmp" ||
+ Name == "strncasecmp") {
if (FTy->getNumParams() < 2 ||
!isa<PointerType>(FTy->getParamType(0)) ||
!isa<PointerType>(FTy->getParamType(1)))
setDoesNotThrow(F);
setDoesNotCapture(F, 1);
setDoesNotCapture(F, 2);
- } else if ((NameLen == 6 && !strcmp(NameStr, "strstr")) ||
- (NameLen == 7 && !strcmp(NameStr, "strpbrk"))) {
+ } else if (Name == "strstr" ||
+ Name == "strpbrk") {
if (FTy->getNumParams() != 2 ||
!isa<PointerType>(FTy->getParamType(1)))
continue;
setOnlyReadsMemory(F);
setDoesNotThrow(F);
setDoesNotCapture(F, 2);
- } else if ((NameLen == 6 && !strcmp(NameStr, "strtok")) ||
- (NameLen == 8 && !strcmp(NameStr, "strtok_r"))) {
+ } else if (Name == "strtok" ||
+ Name == "strtok_r") {
if (FTy->getNumParams() < 2 ||
!isa<PointerType>(FTy->getParamType(1)))
continue;
setDoesNotThrow(F);
setDoesNotCapture(F, 2);
- } else if ((NameLen == 5 && !strcmp(NameStr, "scanf")) ||
- (NameLen == 6 && !strcmp(NameStr, "setbuf")) ||
- (NameLen == 7 && !strcmp(NameStr, "setvbuf"))) {
+ } else if (Name == "scanf" ||
+ Name == "setbuf" ||
+ Name == "setvbuf") {
if (FTy->getNumParams() < 1 ||
!isa<PointerType>(FTy->getParamType(0)))
continue;
setDoesNotThrow(F);
setDoesNotCapture(F, 1);
- } else if ((NameLen == 6 && !strcmp(NameStr, "strdup")) ||
- (NameLen == 7 && !strcmp(NameStr, "strndup"))) {
+ } else if (Name == "strdup" ||
+ Name == "strndup") {
if (FTy->getNumParams() < 1 ||
!isa<PointerType>(FTy->getReturnType()) ||
!isa<PointerType>(FTy->getParamType(0)))
setDoesNotThrow(F);
setDoesNotAlias(F, 0);
setDoesNotCapture(F, 1);
- } else if ((NameLen == 4 && !strcmp(NameStr, "stat")) ||
- (NameLen == 6 && !strcmp(NameStr, "sscanf")) ||
- (NameLen == 7 && !strcmp(NameStr, "sprintf")) ||
- (NameLen == 7 && !strcmp(NameStr, "statvfs"))) {
+ } else if (Name == "stat" ||
+ Name == "sscanf" ||
+ Name == "sprintf" ||
+ Name == "statvfs") {
if (FTy->getNumParams() < 2 ||
!isa<PointerType>(FTy->getParamType(0)) ||
!isa<PointerType>(FTy->getParamType(1)))
setDoesNotThrow(F);
setDoesNotCapture(F, 1);
setDoesNotCapture(F, 2);
- } else if (NameLen == 8 && !strcmp(NameStr, "snprintf")) {
+ } else if (Name == "snprintf") {
if (FTy->getNumParams() != 3 ||
!isa<PointerType>(FTy->getParamType(0)) ||
!isa<PointerType>(FTy->getParamType(2)))
setDoesNotThrow(F);
setDoesNotCapture(F, 1);
setDoesNotCapture(F, 3);
- } else if (NameLen == 9 && !strcmp(NameStr, "setitimer")) {
+ } else if (Name == "setitimer") {
if (FTy->getNumParams() != 3 ||
!isa<PointerType>(FTy->getParamType(1)) ||
!isa<PointerType>(FTy->getParamType(2)))
setDoesNotThrow(F);
setDoesNotCapture(F, 2);
setDoesNotCapture(F, 3);
- } else if (NameLen == 6 && !strcmp(NameStr, "system")) {
+ } else if (Name == "system") {
if (FTy->getNumParams() != 1 ||
!isa<PointerType>(FTy->getParamType(0)))
continue;
}
break;
case 'm':
- if (NameLen == 6 && !strcmp(NameStr, "memcmp")) {
+ if (Name == "memcmp") {
if (FTy->getNumParams() != 3 ||
!isa<PointerType>(FTy->getParamType(0)) ||
!isa<PointerType>(FTy->getParamType(1)))
setDoesNotThrow(F);
setDoesNotCapture(F, 1);
setDoesNotCapture(F, 2);
- } else if ((NameLen == 6 && !strcmp(NameStr, "memchr")) ||
- (NameLen == 7 && !strcmp(NameStr, "memrchr"))) {
+ } else if (Name == "memchr" ||
+ Name == "memrchr") {
if (FTy->getNumParams() != 3)
continue;
setOnlyReadsMemory(F);
setDoesNotThrow(F);
- } else if ((NameLen == 4 && !strcmp(NameStr, "modf")) ||
- (NameLen == 5 && !strcmp(NameStr, "modff")) ||
- (NameLen == 5 && !strcmp(NameStr, "modfl")) ||
- (NameLen == 6 && !strcmp(NameStr, "memcpy")) ||
- (NameLen == 7 && !strcmp(NameStr, "memccpy")) ||
- (NameLen == 7 && !strcmp(NameStr, "memmove"))) {
+ } else if (Name == "modf" ||
+ Name == "modff" ||
+ Name == "modfl" ||
+ Name == "memcpy" ||
+ Name == "memccpy" ||
+ Name == "memmove") {
if (FTy->getNumParams() < 2 ||
!isa<PointerType>(FTy->getParamType(1)))
continue;
setDoesNotThrow(F);
setDoesNotCapture(F, 2);
- } else if (NameLen == 8 && !strcmp(NameStr, "memalign")) {
+ } else if (Name == "memalign") {
if (!isa<PointerType>(FTy->getReturnType()))
continue;
setDoesNotAlias(F, 0);
- } else if ((NameLen == 5 && !strcmp(NameStr, "mkdir")) ||
- (NameLen == 6 && !strcmp(NameStr, "mktime"))) {
+ } else if (Name == "mkdir" ||
+ Name == "mktime") {
if (FTy->getNumParams() == 0 ||
!isa<PointerType>(FTy->getParamType(0)))
continue;
}
break;
case 'r':
- if (NameLen == 7 && !strcmp(NameStr, "realloc")) {
+ if (Name == "realloc") {
if (FTy->getNumParams() != 2 ||
!isa<PointerType>(FTy->getParamType(0)) ||
!isa<PointerType>(FTy->getReturnType()))
setDoesNotThrow(F);
setDoesNotAlias(F, 0);
setDoesNotCapture(F, 1);
- } else if (NameLen == 4 && !strcmp(NameStr, "read")) {
+ } else if (Name == "read") {
if (FTy->getNumParams() != 3 ||
!isa<PointerType>(FTy->getParamType(1)))
continue;
// May throw; "read" is a valid pthread cancellation point.
setDoesNotCapture(F, 2);
- } else if ((NameLen == 5 && !strcmp(NameStr, "rmdir")) ||
- (NameLen == 6 && !strcmp(NameStr, "rewind")) ||
- (NameLen == 6 && !strcmp(NameStr, "remove")) ||
- (NameLen == 8 && !strcmp(NameStr, "realpath"))) {
+ } else if (Name == "rmdir" ||
+ Name == "rewind" ||
+ Name == "remove" ||
+ Name == "realpath") {
if (FTy->getNumParams() < 1 ||
!isa<PointerType>(FTy->getParamType(0)))
continue;
setDoesNotThrow(F);
setDoesNotCapture(F, 1);
- } else if ((NameLen == 6 && !strcmp(NameStr, "rename")) ||
- (NameLen == 8 && !strcmp(NameStr, "readlink"))) {
+ } else if (Name == "rename" ||
+ Name == "readlink") {
if (FTy->getNumParams() < 2 ||
!isa<PointerType>(FTy->getParamType(0)) ||
!isa<PointerType>(FTy->getParamType(1)))
}
break;
case 'w':
- if (NameLen == 5 && !strcmp(NameStr, "write")) {
+ if (Name == "write") {
if (FTy->getNumParams() != 3 ||
!isa<PointerType>(FTy->getParamType(1)))
continue;
}
break;
case 'b':
- if (NameLen == 5 && !strcmp(NameStr, "bcopy")) {
+ if (Name == "bcopy") {
if (FTy->getNumParams() != 3 ||
!isa<PointerType>(FTy->getParamType(0)) ||
!isa<PointerType>(FTy->getParamType(1)))
setDoesNotThrow(F);
setDoesNotCapture(F, 1);
setDoesNotCapture(F, 2);
- } else if (NameLen == 4 && !strcmp(NameStr, "bcmp")) {
+ } else if (Name == "bcmp") {
if (FTy->getNumParams() != 3 ||
!isa<PointerType>(FTy->getParamType(0)) ||
!isa<PointerType>(FTy->getParamType(1)))
setOnlyReadsMemory(F);
setDoesNotCapture(F, 1);
setDoesNotCapture(F, 2);
- } else if (NameLen == 5 && !strcmp(NameStr, "bzero")) {
+ } else if (Name == "bzero") {
if (FTy->getNumParams() != 2 ||
!isa<PointerType>(FTy->getParamType(0)))
continue;
}
break;
case 'c':
- if (NameLen == 6 && !strcmp(NameStr, "calloc")) {
+ if (Name == "calloc") {
if (FTy->getNumParams() != 2 ||
!isa<PointerType>(FTy->getReturnType()))
continue;
setDoesNotThrow(F);
setDoesNotAlias(F, 0);
- } else if ((NameLen == 5 && !strcmp(NameStr, "chmod")) ||
- (NameLen == 5 && !strcmp(NameStr, "chown")) ||
- (NameLen == 7 && !strcmp(NameStr, "ctermid")) ||
- (NameLen == 8 && !strcmp(NameStr, "clearerr")) ||
- (NameLen == 8 && !strcmp(NameStr, "closedir"))) {
+ } else if (Name == "chmod" ||
+ Name == "chown" ||
+ Name == "ctermid" ||
+ Name == "clearerr" ||
+ Name == "closedir") {
if (FTy->getNumParams() == 0 ||
!isa<PointerType>(FTy->getParamType(0)))
continue;
}
break;
case 'a':
- if ((NameLen == 4 && !strcmp(NameStr, "atoi")) ||
- (NameLen == 4 && !strcmp(NameStr, "atol")) ||
- (NameLen == 4 && !strcmp(NameStr, "atof")) ||
- (NameLen == 5 && !strcmp(NameStr, "atoll"))) {
+ if (Name == "atoi" ||
+ Name == "atol" ||
+ Name == "atof" ||
+ Name == "atoll") {
if (FTy->getNumParams() != 1 ||
!isa<PointerType>(FTy->getParamType(0)))
continue;
setDoesNotThrow(F);
setOnlyReadsMemory(F);
setDoesNotCapture(F, 1);
- } else if (NameLen == 6 && !strcmp(NameStr, "access")) {
+ } else if (Name == "access") {
if (FTy->getNumParams() != 2 ||
!isa<PointerType>(FTy->getParamType(0)))
continue;
}
break;
case 'f':
- if (NameLen == 5 && !strcmp(NameStr, "fopen")) {
+ if (Name == "fopen") {
if (FTy->getNumParams() != 2 ||
!isa<PointerType>(FTy->getReturnType()) ||
!isa<PointerType>(FTy->getParamType(0)) ||
setDoesNotAlias(F, 0);
setDoesNotCapture(F, 1);
setDoesNotCapture(F, 2);
- } else if (NameLen == 6 && !strcmp(NameStr, "fdopen")) {
+ } else if (Name == "fdopen") {
if (FTy->getNumParams() != 2 ||
!isa<PointerType>(FTy->getReturnType()) ||
!isa<PointerType>(FTy->getParamType(1)))
setDoesNotThrow(F);
setDoesNotAlias(F, 0);
setDoesNotCapture(F, 2);
- } else if ((NameLen == 4 && !strcmp(NameStr, "feof")) ||
- (NameLen == 4 && !strcmp(NameStr, "free")) ||
- (NameLen == 5 && !strcmp(NameStr, "fseek")) ||
- (NameLen == 5 && !strcmp(NameStr, "ftell")) ||
- (NameLen == 5 && !strcmp(NameStr, "fgetc")) ||
- (NameLen == 6 && !strcmp(NameStr, "fseeko")) ||
- (NameLen == 6 && !strcmp(NameStr, "ftello")) ||
- (NameLen == 6 && !strcmp(NameStr, "fileno")) ||
- (NameLen == 6 && !strcmp(NameStr, "fflush")) ||
- (NameLen == 6 && !strcmp(NameStr, "fclose")) ||
- (NameLen == 7 && !strcmp(NameStr, "fsetpos")) ||
- (NameLen == 9 && !strcmp(NameStr, "flockfile")) ||
- (NameLen == 11 && !strcmp(NameStr, "funlockfile")) ||
- (NameLen == 12 && !strcmp(NameStr, "ftrylockfile"))) {
+ } else if (Name == "feof" ||
+ Name == "free" ||
+ Name == "fseek" ||
+ Name == "ftell" ||
+ Name == "fgetc" ||
+ Name == "fseeko" ||
+ Name == "ftello" ||
+ Name == "fileno" ||
+ Name == "fflush" ||
+ Name == "fclose" ||
+ Name == "fsetpos" ||
+ Name == "flockfile" ||
+ Name == "funlockfile" ||
+ Name == "ftrylockfile") {
if (FTy->getNumParams() == 0 ||
!isa<PointerType>(FTy->getParamType(0)))
continue;
setDoesNotThrow(F);
setDoesNotCapture(F, 1);
- } else if (NameLen == 6 && !strcmp(NameStr, "ferror")) {
+ } else if (Name == "ferror") {
if (FTy->getNumParams() != 1 ||
!isa<PointerType>(FTy->getParamType(0)))
continue;
setDoesNotThrow(F);
setDoesNotCapture(F, 1);
setOnlyReadsMemory(F);
- } else if ((NameLen == 5 && !strcmp(NameStr, "fputc")) ||
- (NameLen == 5 && !strcmp(NameStr, "fstat")) ||
- (NameLen == 5 && !strcmp(NameStr, "frexp")) ||
- (NameLen == 6 && !strcmp(NameStr, "frexpf")) ||
- (NameLen == 6 && !strcmp(NameStr, "frexpl")) ||
- (NameLen == 8 && !strcmp(NameStr, "fstatvfs"))) {
+ } else if (Name == "fputc" ||
+ Name == "fstat" ||
+ Name == "frexp" ||
+ Name == "frexpf" ||
+ Name == "frexpl" ||
+ Name == "fstatvfs") {
if (FTy->getNumParams() != 2 ||
!isa<PointerType>(FTy->getParamType(1)))
continue;
setDoesNotThrow(F);
setDoesNotCapture(F, 2);
- } else if (NameLen == 5 && !strcmp(NameStr, "fgets")) {
+ } else if (Name == "fgets") {
if (FTy->getNumParams() != 3 ||
!isa<PointerType>(FTy->getParamType(0)) ||
!isa<PointerType>(FTy->getParamType(2)))
continue;
setDoesNotThrow(F);
setDoesNotCapture(F, 3);
- } else if ((NameLen == 5 && !strcmp(NameStr, "fread")) ||
- (NameLen == 6 && !strcmp(NameStr, "fwrite"))) {
+ } else if (Name == "fread" ||
+ Name == "fwrite") {
if (FTy->getNumParams() != 4 ||
!isa<PointerType>(FTy->getParamType(0)) ||
!isa<PointerType>(FTy->getParamType(3)))
setDoesNotThrow(F);
setDoesNotCapture(F, 1);
setDoesNotCapture(F, 4);
- } else if ((NameLen == 5 && !strcmp(NameStr, "fputs")) ||
- (NameLen == 6 && !strcmp(NameStr, "fscanf")) ||
- (NameLen == 7 && !strcmp(NameStr, "fprintf")) ||
- (NameLen == 7 && !strcmp(NameStr, "fgetpos"))) {
+ } else if (Name == "fputs" ||
+ Name == "fscanf" ||
+ Name == "fprintf" ||
+ Name == "fgetpos") {
if (FTy->getNumParams() < 2 ||
!isa<PointerType>(FTy->getParamType(0)) ||
!isa<PointerType>(FTy->getParamType(1)))
}
break;
case 'g':
- if ((NameLen == 4 && !strcmp(NameStr, "getc")) ||
- (NameLen == 10 && !strcmp(NameStr, "getlogin_r")) ||
- (NameLen == 13 && !strcmp(NameStr, "getc_unlocked"))) {
+ if (Name == "getc" ||
+ Name == "getlogin_r" ||
+ Name == "getc_unlocked") {
if (FTy->getNumParams() == 0 ||
!isa<PointerType>(FTy->getParamType(0)))
continue;
setDoesNotThrow(F);
setDoesNotCapture(F, 1);
- } else if (NameLen == 6 && !strcmp(NameStr, "getenv")) {
+ } else if (Name == "getenv") {
if (FTy->getNumParams() != 1 ||
!isa<PointerType>(FTy->getParamType(0)))
continue;
setDoesNotThrow(F);
setOnlyReadsMemory(F);
setDoesNotCapture(F, 1);
- } else if ((NameLen == 4 && !strcmp(NameStr, "gets")) ||
- (NameLen == 7 && !strcmp(NameStr, "getchar"))) {
+ } else if (Name == "gets" ||
+ Name == "getchar") {
setDoesNotThrow(F);
- } else if (NameLen == 9 && !strcmp(NameStr, "getitimer")) {
+ } else if (Name == "getitimer") {
if (FTy->getNumParams() != 2 ||
!isa<PointerType>(FTy->getParamType(1)))
continue;
setDoesNotThrow(F);
setDoesNotCapture(F, 2);
- } else if (NameLen == 8 && !strcmp(NameStr, "getpwnam")) {
+ } else if (Name == "getpwnam") {
if (FTy->getNumParams() != 1 ||
!isa<PointerType>(FTy->getParamType(0)))
continue;
}
break;
case 'u':
- if (NameLen == 6 && !strcmp(NameStr, "ungetc")) {
+ if (Name == "ungetc") {
if (FTy->getNumParams() != 2 ||
!isa<PointerType>(FTy->getParamType(1)))
continue;
setDoesNotThrow(F);
setDoesNotCapture(F, 2);
- } else if ((NameLen == 5 && !strcmp(NameStr, "uname")) ||
- (NameLen == 6 && !strcmp(NameStr, "unlink")) ||
- (NameLen == 8 && !strcmp(NameStr, "unsetenv"))) {
+ } else if (Name == "uname" ||
+ Name == "unlink" ||
+ Name == "unsetenv") {
if (FTy->getNumParams() != 1 ||
!isa<PointerType>(FTy->getParamType(0)))
continue;
setDoesNotThrow(F);
setDoesNotCapture(F, 1);
- } else if ((NameLen == 5 && !strcmp(NameStr, "utime")) ||
- (NameLen == 6 && !strcmp(NameStr, "utimes"))) {
+ } else if (Name == "utime" ||
+ Name == "utimes") {
if (FTy->getNumParams() != 2 ||
!isa<PointerType>(FTy->getParamType(0)) ||
!isa<PointerType>(FTy->getParamType(1)))
}
break;
case 'p':
- if (NameLen == 4 && !strcmp(NameStr, "putc")) {
+ if (Name == "putc") {
if (FTy->getNumParams() != 2 ||
!isa<PointerType>(FTy->getParamType(1)))
continue;
setDoesNotThrow(F);
setDoesNotCapture(F, 2);
- } else if ((NameLen == 4 && !strcmp(NameStr, "puts")) ||
- (NameLen == 6 && !strcmp(NameStr, "printf")) ||
- (NameLen == 6 && !strcmp(NameStr, "perror"))) {
+ } else if (Name == "puts" ||
+ Name == "printf" ||
+ Name == "perror") {
if (FTy->getNumParams() != 1 ||
!isa<PointerType>(FTy->getParamType(0)))
continue;
setDoesNotThrow(F);
setDoesNotCapture(F, 1);
- } else if ((NameLen == 5 && !strcmp(NameStr, "pread")) ||
- (NameLen == 6 && !strcmp(NameStr, "pwrite"))) {
+ } else if (Name == "pread" ||
+ Name == "pwrite") {
if (FTy->getNumParams() != 4 ||
!isa<PointerType>(FTy->getParamType(1)))
continue;
// May throw; these are valid pthread cancellation points.
setDoesNotCapture(F, 2);
- } else if (NameLen == 7 && !strcmp(NameStr, "putchar")) {
+ } else if (Name == "putchar") {
setDoesNotThrow(F);
- } else if (NameLen == 5 && !strcmp(NameStr, "popen")) {
+ } else if (Name == "popen") {
if (FTy->getNumParams() != 2 ||
!isa<PointerType>(FTy->getReturnType()) ||
!isa<PointerType>(FTy->getParamType(0)) ||
setDoesNotAlias(F, 0);
setDoesNotCapture(F, 1);
setDoesNotCapture(F, 2);
- } else if (NameLen == 6 && !strcmp(NameStr, "pclose")) {
+ } else if (Name == "pclose") {
if (FTy->getNumParams() != 1 ||
!isa<PointerType>(FTy->getParamType(0)))
continue;
}
break;
case 'v':
- if (NameLen == 6 && !strcmp(NameStr, "vscanf")) {
+ if (Name == "vscanf") {
if (FTy->getNumParams() != 2 ||
!isa<PointerType>(FTy->getParamType(1)))
continue;
setDoesNotThrow(F);
setDoesNotCapture(F, 1);
- } else if ((NameLen == 7 && !strcmp(NameStr, "vsscanf")) ||
- (NameLen == 7 && !strcmp(NameStr, "vfscanf"))) {
+ } else if (Name == "vsscanf" ||
+ Name == "vfscanf") {
if (FTy->getNumParams() != 3 ||
!isa<PointerType>(FTy->getParamType(1)) ||
!isa<PointerType>(FTy->getParamType(2)))
setDoesNotThrow(F);
setDoesNotCapture(F, 1);
setDoesNotCapture(F, 2);
- } else if (NameLen == 6 && !strcmp(NameStr, "valloc")) {
+ } else if (Name == "valloc") {
if (!isa<PointerType>(FTy->getReturnType()))
continue;
setDoesNotThrow(F);
setDoesNotAlias(F, 0);
- } else if (NameLen == 7 && !strcmp(NameStr, "vprintf")) {
+ } else if (Name == "vprintf") {
if (FTy->getNumParams() != 2 ||
!isa<PointerType>(FTy->getParamType(0)))
continue;
setDoesNotThrow(F);
setDoesNotCapture(F, 1);
- } else if ((NameLen == 8 && !strcmp(NameStr, "vfprintf")) ||
- (NameLen == 8 && !strcmp(NameStr, "vsprintf"))) {
+ } else if (Name == "vfprintf" ||
+ Name == "vsprintf") {
if (FTy->getNumParams() != 3 ||
!isa<PointerType>(FTy->getParamType(0)) ||
!isa<PointerType>(FTy->getParamType(1)))
setDoesNotThrow(F);
setDoesNotCapture(F, 1);
setDoesNotCapture(F, 2);
- } else if (NameLen == 9 && !strcmp(NameStr, "vsnprintf")) {
+ } else if (Name == "vsnprintf") {
if (FTy->getNumParams() != 4 ||
!isa<PointerType>(FTy->getParamType(0)) ||
!isa<PointerType>(FTy->getParamType(2)))
}
break;
case 'o':
- if (NameLen == 4 && !strcmp(NameStr, "open")) {
+ if (Name == "open") {
if (FTy->getNumParams() < 2 ||
!isa<PointerType>(FTy->getParamType(0)))
continue;
// May throw; "open" is a valid pthread cancellation point.
setDoesNotCapture(F, 1);
- } else if (NameLen == 7 && !strcmp(NameStr, "opendir")) {
+ } else if (Name == "opendir") {
if (FTy->getNumParams() != 1 ||
!isa<PointerType>(FTy->getReturnType()) ||
!isa<PointerType>(FTy->getParamType(0)))
}
break;
case 't':
- if (NameLen == 7 && !strcmp(NameStr, "tmpfile")) {
+ if (Name == "tmpfile") {
if (!isa<PointerType>(FTy->getReturnType()))
continue;
setDoesNotThrow(F);
setDoesNotAlias(F, 0);
- } else if (NameLen == 5 && !strcmp(NameStr, "times")) {
+ } else if (Name == "times") {
if (FTy->getNumParams() != 1 ||
!isa<PointerType>(FTy->getParamType(0)))
continue;
}
break;
case 'h':
- if ((NameLen == 5 && !strcmp(NameStr, "htonl")) ||
- (NameLen == 5 && !strcmp(NameStr, "htons"))) {
+ if (Name == "htonl" ||
+ Name == "htons") {
setDoesNotThrow(F);
setDoesNotAccessMemory(F);
}
break;
case 'n':
- if ((NameLen == 5 && !strcmp(NameStr, "ntohl")) ||
- (NameLen == 5 && !strcmp(NameStr, "ntohs"))) {
+ if (Name == "ntohl" ||
+ Name == "ntohs") {
setDoesNotThrow(F);
setDoesNotAccessMemory(F);
}
break;
case 'l':
- if (NameLen == 5 && !strcmp(NameStr, "lstat")) {
+ if (Name == "lstat") {
if (FTy->getNumParams() != 2 ||
!isa<PointerType>(FTy->getParamType(0)) ||
!isa<PointerType>(FTy->getParamType(1)))
setDoesNotThrow(F);
setDoesNotCapture(F, 1);
setDoesNotCapture(F, 2);
- } else if (NameLen == 6 && !strcmp(NameStr, "lchown")) {
+ } else if (Name == "lchown") {
if (FTy->getNumParams() != 3 ||
!isa<PointerType>(FTy->getParamType(0)))
continue;
}
break;
case 'q':
- if (NameLen == 5 && !strcmp(NameStr, "qsort")) {
+ if (Name == "qsort") {
if (FTy->getNumParams() != 4 ||
!isa<PointerType>(FTy->getParamType(3)))
continue;
}
break;
case '_':
- if ((NameLen == 8 && !strcmp(NameStr, "__strdup")) ||
- (NameLen == 9 && !strcmp(NameStr, "__strndup"))) {
+ if (Name == "__strdup" ||
+ Name == "__strndup") {
if (FTy->getNumParams() < 1 ||
!isa<PointerType>(FTy->getReturnType()) ||
!isa<PointerType>(FTy->getParamType(0)))
setDoesNotThrow(F);
setDoesNotAlias(F, 0);
setDoesNotCapture(F, 1);
- } else if (NameLen == 10 && !strcmp(NameStr, "__strtok_r")) {
+ } else if (Name == "__strtok_r") {
if (FTy->getNumParams() != 3 ||
!isa<PointerType>(FTy->getParamType(1)))
continue;
setDoesNotThrow(F);
setDoesNotCapture(F, 2);
- } else if (NameLen == 8 && !strcmp(NameStr, "_IO_getc")) {
+ } else if (Name == "_IO_getc") {
if (FTy->getNumParams() != 1 ||
!isa<PointerType>(FTy->getParamType(0)))
continue;
setDoesNotThrow(F);
setDoesNotCapture(F, 1);
- } else if (NameLen == 8 && !strcmp(NameStr, "_IO_putc")) {
+ } else if (Name == "_IO_putc") {
if (FTy->getNumParams() != 2 ||
!isa<PointerType>(FTy->getParamType(1)))
continue;
}
break;
case 1:
- if (NameLen == 15 && !strcmp(NameStr, "\1__isoc99_scanf")) {
+ if (Name == "\1__isoc99_scanf") {
if (FTy->getNumParams() < 1 ||
!isa<PointerType>(FTy->getParamType(0)))
continue;
setDoesNotThrow(F);
setDoesNotCapture(F, 1);
- } else if ((NameLen == 7 && !strcmp(NameStr, "\1stat64")) ||
- (NameLen == 8 && !strcmp(NameStr, "\1lstat64")) ||
- (NameLen == 10 && !strcmp(NameStr, "\1statvfs64")) ||
- (NameLen == 16 && !strcmp(NameStr, "\1__isoc99_sscanf"))) {
+ } else if (Name == "\1stat64" ||
+ Name == "\1lstat64" ||
+ Name == "\1statvfs64" ||
+ Name == "\1__isoc99_sscanf") {
if (FTy->getNumParams() < 1 ||
!isa<PointerType>(FTy->getParamType(0)) ||
!isa<PointerType>(FTy->getParamType(1)))
setDoesNotThrow(F);
setDoesNotCapture(F, 1);
setDoesNotCapture(F, 2);
- } else if (NameLen == 8 && !strcmp(NameStr, "\1fopen64")) {
+ } else if (Name == "\1fopen64") {
if (FTy->getNumParams() != 2 ||
!isa<PointerType>(FTy->getReturnType()) ||
!isa<PointerType>(FTy->getParamType(0)) ||
setDoesNotAlias(F, 0);
setDoesNotCapture(F, 1);
setDoesNotCapture(F, 2);
- } else if ((NameLen == 9 && !strcmp(NameStr, "\1fseeko64")) ||
- (NameLen == 9 && !strcmp(NameStr, "\1ftello64"))) {
+ } else if (Name == "\1fseeko64" ||
+ Name == "\1ftello64") {
if (FTy->getNumParams() == 0 ||
!isa<PointerType>(FTy->getParamType(0)))
continue;
setDoesNotThrow(F);
setDoesNotCapture(F, 1);
- } else if (NameLen == 10 && !strcmp(NameStr, "\1tmpfile64")) {
+ } else if (Name == "\1tmpfile64") {
if (!isa<PointerType>(FTy->getReturnType()))
continue;
setDoesNotThrow(F);
setDoesNotAlias(F, 0);
- } else if ((NameLen == 8 && !strcmp(NameStr, "\1fstat64")) ||
- (NameLen == 11 && !strcmp(NameStr, "\1fstatvfs64"))) {
+ } else if (Name == "\1fstat64" ||
+ Name == "\1fstatvfs64") {
if (FTy->getNumParams() != 2 ||
!isa<PointerType>(FTy->getParamType(1)))
continue;
setDoesNotThrow(F);
setDoesNotCapture(F, 2);
- } else if (NameLen == 7 && !strcmp(NameStr, "\1open64")) {
+ } else if (Name == "\1open64") {
if (FTy->getNumParams() < 2 ||
!isa<PointerType>(FTy->getParamType(0)))
continue;
projects / oota-llvm.git / blobdiff