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Improvements to the routine that maps from LLVM types to ispc types.

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This commit is contained in:
Matt Pharr
2011-07-04 15:49:04 +01:00
parent c6bc8fd64f
commit 5c810e620d
1 changed files with 13 additions and 8 deletions
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21
builtins.cpp
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@@ -99,11 +99,17 @@ lLLVMTypeToISPCType(const llvm::Type *t, bool intAsUnsigned) {
else if (t == LLVMTypes::Int32PointerType)
return new ReferenceType(intAsUnsigned ? AtomicType::UniformUInt32 :
AtomicType::UniformInt32, false);
else if (t == LLVMTypes::Int64PointerType)
return new ReferenceType(intAsUnsigned ? AtomicType::UniformUInt64 :
AtomicType::UniformInt64, false);
else if (t == LLVMTypes::FloatPointerType)
return new ReferenceType(AtomicType::UniformFloat, false);
else if (t == LLVMTypes::Int32VectorPointerType)
return new ReferenceType(intAsUnsigned ? AtomicType::VaryingUInt32 :
AtomicType::VaryingInt32, false);
else if (t == LLVMTypes::Int64VectorPointerType)
return new ReferenceType(intAsUnsigned ? AtomicType::VaryingUInt64 :
AtomicType::VaryingInt64, false);
else if (t == LLVMTypes::FloatVectorPointerType)
return new ReferenceType(AtomicType::VaryingFloat, false);
else if (llvm::isa<const llvm::PointerType>(t)) {
@@ -113,16 +119,15 @@ lLLVMTypeToISPCType(const llvm::Type *t, bool intAsUnsigned) {
// create the equivalent ispc type. Note that it has to be a
// reference to an array, since ispc passes arrays to functions by
// reference.
//
// FIXME: generalize this to do more than uniform int32s (that's
// all that's necessary for the stdlib currently.)
const llvm::ArrayType *at =
llvm::dyn_cast<const llvm::ArrayType>(pt->getElementType());
if (at && at->getNumElements() == 0 &&
at->getElementType() == LLVMTypes::Int32Type) {
const Type *eltType = intAsUnsigned ? AtomicType::UniformUInt32 :
AtomicType::UniformInt32;
return new ReferenceType(new ArrayType(eltType, 0), false);
if (at != NULL) {
const Type *eltType = lLLVMTypeToISPCType(at->getElementType(),
intAsUnsigned);
if (eltType == NULL)
return NULL;
return new ReferenceType(new ArrayType(eltType, at->getNumElements()),
false);
}
}