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[AMDGPU] OCL12 Adapter: avoid processing of special C++ functions #50

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[AMDGPU] OCL12 Adapter: avoid processing of special C++ functions #50

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27 changes: 16 additions & 11 deletions lib/Target/AMDGPU/AMDGPUOCL12Adapter.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -93,6 +93,7 @@ static bool locateFuncName(StringRef FuncName, size_t &FuncNameStart,
// are "_Z" in the mangling scheme.
size_t NumStartPos = 2;
FuncNameStart = FuncName.find_first_not_of("0123456789", NumStartPos);
assert(FuncNameStart != NumStartPos);
// Extract the integer, which is equal to the number of chars
// in the function name.
StringRef SizeInChar = FuncName.slice(NumStartPos, FuncNameStart);
Expand Down Expand Up @@ -208,18 +209,22 @@ static bool findAndDefineBuiltinCalls(Module &M) {

// Search only for used, undefined OpenCL builtin functions,
// which has non-default addr space pointer arguments.
if (!F.empty() || F.use_empty() || !F.getName().startswith("_Z") ||
!hasNonDefaultAddrSpaceArg(&F))
if (!F.empty() || F.use_empty() || !hasNonDefaultAddrSpaceArg(&F))
continue;
if (F.getName().find("async_work_group", 0) == StringRef::npos &&
F.getName().find("prefetch", 0) == StringRef::npos) {
isModified = true;
Function *NewFunc = getNewOCL20BuiltinFuncDecl(&F);
// Get the new Function declaration.
DEBUG(dbgs() << "\n Modifying Func " << F.getName() << " to call "
<< NewFunc->getName() << " Function");
createOCL20BuiltinFuncDefn(&F, NewFunc);
}

auto const Name = F.getName();
if (!Name.startswith("_Z") ||
Name.find_first_of("123456789", 2) != 2 ||
Name.find("async_work_group", 3) != StringRef::npos ||
Name.find("prefetch", 3) != StringRef::npos)
continue;

Function *NewFunc = getNewOCL20BuiltinFuncDecl(&F);
// Get the new Function declaration.
DEBUG(dbgs() << "\n Modifying Func " << Name << " to call "
<< NewFunc->getName() << " Function");
createOCL20BuiltinFuncDefn(&F, NewFunc);
isModified = true;
}
return isModified;
}
Expand Down