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Add OpenCL/SPIR kernel_arg_base_type metadata node

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As defined in the SPIR 1.2 specification, this node behaves similarly to
kernel_arg_type but will print the underlying type name, e.g., without
typedefs.

Example:
  typedef unsigned int myunsignedint;
would report:
  'myunsignedint' in the kernel_arg_type node
  'uint' in the kernel_arg_base_type node

llvm-svn: 214308
This commit is contained in:
Fraser Cormack
2014-07-30 14:39:53 +00:00
parent 326e48cd09
commit dadc371e85
2 changed files with 40 additions and 0 deletions
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28
clang/lib/CodeGen/CodeGenFunction.cpp
View File

@@ -358,6 +358,11 @@ static void GenOpenCLArgMetadata(const FunctionDecl *FD, llvm::Function *Fn,
SmallVector<llvm::Value*, 8> argTypeNames;
argTypeNames.push_back(llvm::MDString::get(Context, "kernel_arg_type"));
// MDNode for the kernel argument base type names.
SmallVector<llvm::Value*, 8> argBaseTypeNames;
argBaseTypeNames.push_back(
llvm::MDString::get(Context, "kernel_arg_base_type"));
// MDNode for the kernel argument type qualifiers.
SmallVector<llvm::Value*, 8> argTypeQuals;
argTypeQuals.push_back(llvm::MDString::get(Context, "kernel_arg_type_qual"));
@@ -389,6 +394,18 @@ static void GenOpenCLArgMetadata(const FunctionDecl *FD, llvm::Function *Fn,
argTypeNames.push_back(llvm::MDString::get(Context, typeName));
std::string baseTypeName =
pointeeTy.getUnqualifiedType().getCanonicalType().getAsString(
Policy) +
"*";
// Turn "unsigned type" to "utype"
pos = baseTypeName.find("unsigned");
if (pos != std::string::npos)
baseTypeName.erase(pos+1, 8);
argBaseTypeNames.push_back(llvm::MDString::get(Context, baseTypeName));
// Get argument type qualifiers:
if (ty.isRestrictQualified())
typeQuals = "restrict";
@@ -415,6 +432,16 @@ static void GenOpenCLArgMetadata(const FunctionDecl *FD, llvm::Function *Fn,
argTypeNames.push_back(llvm::MDString::get(Context, typeName));
std::string baseTypeName =
ty.getUnqualifiedType().getCanonicalType().getAsString(Policy);
// Turn "unsigned type" to "utype"
pos = baseTypeName.find("unsigned");
if (pos != std::string::npos)
baseTypeName.erase(pos+1, 8);
argBaseTypeNames.push_back(llvm::MDString::get(Context, baseTypeName));
// Get argument type qualifiers:
if (ty.isConstQualified())
typeQuals = "const";
@@ -442,6 +469,7 @@ static void GenOpenCLArgMetadata(const FunctionDecl *FD, llvm::Function *Fn,
kernelMDArgs.push_back(llvm::MDNode::get(Context, addressQuals));
kernelMDArgs.push_back(llvm::MDNode::get(Context, accessQuals));
kernelMDArgs.push_back(llvm::MDNode::get(Context, argTypeNames));
kernelMDArgs.push_back(llvm::MDNode::get(Context, argBaseTypeNames));
kernelMDArgs.push_back(llvm::MDNode::get(Context, argTypeQuals));
kernelMDArgs.push_back(llvm::MDNode::get(Context, argNames));
}