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e7bfb78632
By introducing abstractions for attribute builder and set since they differ greatly between LLVM 3.1-3.3.
112 lines
2.8 KiB
C++
112 lines
2.8 KiB
C++
//===-- attributes.cpp ----------------------------------------------------===//
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//
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// LDC – the LLVM D compiler
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//
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// This file is distributed under the BSD-style LDC license. See the LICENSE
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// file for details.
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//
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//===----------------------------------------------------------------------===//
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#include "gen/attributes.h"
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#include "gen/irstate.h"
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bool AttrBuilder::hasAttributes() const {
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#if LDC_LLVM_VER >= 302
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return attrs.hasAttributes();
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#else
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return attrs.Raw() != 0;
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#endif
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}
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bool AttrBuilder::contains(A attribute) const {
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#if LDC_LLVM_VER >= 303
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return attrs.contains(attribute);
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#elif LDC_LLVM_VER == 302
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return attrs.hasAttribute(attribute);
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#else
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return (attrs & attribute).Raw() != 0;
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#endif
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}
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AttrBuilder& AttrBuilder::clear() {
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#if LDC_LLVM_VER >= 302
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attrs.clear();
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#else
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attrs = A(0);
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#endif
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return *this;
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}
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AttrBuilder& AttrBuilder::add(A attribute) {
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#if LDC_LLVM_VER >= 302
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// never set 'None' explicitly
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if (attribute)
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attrs.addAttribute(attribute);
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#else
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attrs |= attribute;
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#endif
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return *this;
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}
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AttrBuilder& AttrBuilder::remove(A attribute) {
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#if LDC_LLVM_VER >= 302
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// never remove 'None' explicitly
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if (attribute)
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attrs.removeAttribute(attribute);
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#else
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attrs &= ~attribute;
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#endif
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return *this;
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}
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void AttrSet::reserve(size_t length) {
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entries.reserve(length);
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}
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AttrSet& AttrSet::add(size_t index, const AttrBuilder& builder) {
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if (builder.hasAttributes()) {
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if (index >= entries.size())
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entries.resize(index + 1);
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entries[index] = builder;
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}
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return *this;
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}
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#if LDC_LLVM_VER >= 303
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llvm::AttributeSet AttrSet::toNativeSet() const {
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llvm::AttributeSet set;
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for (size_t i = 0; i < entries.size(); ++i) {
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if (entries[i].hasAttributes()) {
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AttrBuilder a = entries[i];
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set = set.addAttributes(gIR->context(), i, llvm::AttributeSet::get(gIR->context(), i, a.attrs));
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}
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}
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return set;
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}
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#else
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llvm::AttrListPtr AttrSet::toNativeSet() const {
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std::vector<llvm::AttributeWithIndex> attrsWithIndex;
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attrsWithIndex.reserve(entries.size());
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for (size_t i = 0; i < entries.size(); ++i) {
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if (entries[i].hasAttributes()) {
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#if LDC_LLVM_VER == 302
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AttrBuilder a = entries[i];
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attrsWithIndex.push_back(llvm::AttributeWithIndex::get(i,
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llvm::Attributes::get(gIR->context(), a.attrs)));
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#else
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attrsWithIndex.push_back(llvm::AttributeWithIndex::get(i, entries[i].attrs));
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#endif
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}
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}
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#if LDC_LLVM_VER == 302
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return llvm::AttrListPtr::get(gIR->context(), llvm::ArrayRef<llvm::AttributeWithIndex>(attrsWithIndex));
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#else
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return llvm::AttrListPtr::get(attrsWithIndex.begin(), attrsWithIndex.end());
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#endif
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}
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#endif
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