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Add 'nounwind' attribute to the relevant runtime functions, and use it when

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deciding whether or not to generate an invoke instead of a call.
This commit is contained in:
Frits van Bommel
2009-05-04 20:26:45 +02:00
parent cf0b8936ce
commit 5723fa7492
2 changed files with 16 additions and 36 deletions
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45
gen/runtime.cpp
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@@ -198,14 +198,20 @@ static void LLVM_D_BuildRuntimeModule()
NoAttrs,
Attr_NoAlias
= NoAttrs.addAttr(0, NoAlias),
Attr_NoUnwind
= NoAttrs.addAttr(~0U, NoUnwind),
Attr_ReadOnly
= NoAttrs.addAttr(~0U, ReadOnly),
Attr_ReadOnly_NoUnwind
= Attr_ReadOnly.addAttr(~0U, NoUnwind),
Attr_ReadOnly_1_NoCapture
= Attr_ReadOnly.addAttr(1, NoCapture),
Attr_ReadOnly_1_3_NoCapture
= Attr_ReadOnly_1_NoCapture.addAttr(3, NoCapture),
Attr_ReadOnly_1_4_NoCapture
= Attr_ReadOnly_1_NoCapture.addAttr(4, NoCapture),
Attr_ReadOnly_NoUnwind_1_NoCapture
= Attr_ReadOnly_1_NoCapture.addAttr(~0U, NoUnwind),
Attr_ReadNone
= NoAttrs.addAttr(~0U, ReadNone),
Attr_1_NoCapture
@@ -507,7 +513,7 @@ static void LLVM_D_BuildRuntimeModule()
types.push_back(voidPtrTy);
const llvm::FunctionType* fty = llvm::FunctionType::get(objectTy, types, false);
llvm::Function::Create(fty, llvm::GlobalValue::ExternalLinkage, fname, M)
->setAttributes(Attr_ReadOnly);
->setAttributes(Attr_ReadOnly_NoUnwind);
}
// cast interface
@@ -519,7 +525,7 @@ static void LLVM_D_BuildRuntimeModule()
types.push_back(classInfoTy);
const llvm::FunctionType* fty = llvm::FunctionType::get(objectTy, types, false);
llvm::Function::Create(fty, llvm::GlobalValue::ExternalLinkage, fname, M)
->setAttributes(Attr_ReadOnly);
->setAttributes(Attr_ReadOnly_NoUnwind);
}
// dynamic cast
@@ -531,7 +537,7 @@ static void LLVM_D_BuildRuntimeModule()
types.push_back(classInfoTy);
const llvm::FunctionType* fty = llvm::FunctionType::get(objectTy, types, false);
llvm::Function::Create(fty, llvm::GlobalValue::ExternalLinkage, fname, M)
->setAttributes(Attr_ReadOnly);
->setAttributes(Attr_ReadOnly_NoUnwind);
}
/////////////////////////////////////////////////////////////////////////////////////
@@ -569,7 +575,8 @@ static void LLVM_D_BuildRuntimeModule()
types.push_back(rt_array(byteTy));
types.push_back(sizeTy);
const llvm::FunctionType* fty = llvm::FunctionType::get(rt_array(byteTy), types, false);
llvm::Function::Create(fty, llvm::GlobalValue::ExternalLinkage, fname, M);
llvm::Function::Create(fty, llvm::GlobalValue::ExternalLinkage, fname, M)
->setAttributes(Attr_NoUnwind);
}
// void[] _adDupT(TypeInfo ti, void[] a)
@@ -607,7 +614,7 @@ static void LLVM_D_BuildRuntimeModule()
types.push_back(rt_array(byteTy));
const llvm::FunctionType* fty = llvm::FunctionType::get(intTy, types, false);
llvm::Function::Create(fty, llvm::GlobalValue::ExternalLinkage, fname, M)
->setAttributes(Attr_ReadOnly);
->setAttributes(Attr_ReadOnly_NoUnwind);
}
// void[] _adSort(void[] a, TypeInfo ti)
@@ -631,7 +638,7 @@ static void LLVM_D_BuildRuntimeModule()
types.push_back(aaTy);
const llvm::FunctionType* fty = llvm::FunctionType::get(sizeTy, types, false);
llvm::Function::Create(fty, llvm::GlobalValue::ExternalLinkage, fname, M)
->setAttributes(Attr_ReadOnly_1_NoCapture);
->setAttributes(Attr_ReadOnly_NoUnwind_1_NoCapture);
}
// void* _aaGet(AA* aa, TypeInfo keyti, size_t valuesize, void* pkey)
@@ -760,32 +767,6 @@ static void LLVM_D_BuildRuntimeModule()
/////////////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////////////
// Object _d_dynamic_cast(Object o, ClassInfo c)
{
std::string fname("_d_dynamic_cast");
std::vector<const LLType*> types;
types.push_back(objectTy);
types.push_back(classInfoTy);
const llvm::FunctionType* fty = llvm::FunctionType::get(objectTy, types, false);
llvm::Function::Create(fty, llvm::GlobalValue::ExternalLinkage, fname, M)
->setAttributes(Attr_ReadOnly);
}
// Object _d_interface_cast(void* p, ClassInfo c)
{
std::string fname("_d_interface_cast");
std::vector<const LLType*> types;
types.push_back(voidPtrTy);
types.push_back(classInfoTy);
const llvm::FunctionType* fty = llvm::FunctionType::get(objectTy, types, false);
llvm::Function::Create(fty, llvm::GlobalValue::ExternalLinkage, fname, M)
->setAttributes(Attr_ReadOnly);
}
/////////////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////////////
// void _d_throw_exception(Object e)
{
std::string fname("_d_throw_exception");