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99 lines
2.7 KiB
C++
99 lines
2.7 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 { return builder.hasAttributes(); }
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bool AttrBuilder::contains(LLAttribute attribute) const {
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return builder.contains(attribute);
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}
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AttrBuilder &AttrBuilder::clear() {
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builder.clear();
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return *this;
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}
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AttrBuilder &AttrBuilder::add(LLAttribute attribute) {
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// never set 'None' explicitly
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if (attribute) {
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builder.addAttribute(attribute);
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}
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return *this;
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}
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AttrBuilder &AttrBuilder::remove(LLAttribute attribute) {
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// never remove 'None' explicitly
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if (attribute) {
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builder.removeAttribute(attribute);
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}
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return *this;
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}
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AttrBuilder &AttrBuilder::merge(const AttrBuilder &other) {
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builder.merge(other.builder);
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return *this;
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}
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AttrBuilder &AttrBuilder::addAlignment(unsigned alignment) {
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builder.addAlignmentAttr(alignment);
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return *this;
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}
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AttrBuilder &AttrBuilder::addByVal(unsigned alignment) {
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builder.addAttribute(LLAttribute::ByVal);
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if (alignment != 0) {
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builder.addAlignmentAttr(alignment);
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}
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return *this;
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}
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AttrBuilder &AttrBuilder::addDereferenceable(unsigned size) {
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builder.addDereferenceableAttr(size);
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return *this;
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}
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AttrSet::AttrSet(const AttrSet &base, unsigned index, LLAttribute attribute)
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: set(base.set.addAttribute(gIR->context(), index, attribute)) {}
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AttrSet
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AttrSet::extractFunctionAndReturnAttributes(const llvm::Function *function) {
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auto old = function->getAttributes();
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#if LDC_LLVM_VER >= 500
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return {LLAttributeSet::get(gIR->context(), old.getFnAttributes(),
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old.getRetAttributes(), {})};
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#else
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llvm::AttributeSet existingAttrs[] = {old.getFnAttributes(),
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old.getRetAttributes()};
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return {LLAttributeSet::get(gIR->context(), existingAttrs)};
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#endif
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}
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AttrSet &AttrSet::add(unsigned index, const AttrBuilder &builder) {
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if (builder.hasAttributes()) {
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#if LDC_LLVM_VER >= 500
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set = set.addAttributes(gIR->context(), index, builder);
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#else
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auto as = LLAttributeSet::get(gIR->context(), index, builder);
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set = set.addAttributes(gIR->context(), index, as);
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#endif
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}
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return *this;
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}
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AttrSet &AttrSet::merge(const AttrSet &other) {
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auto &os = other.set;
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for (unsigned i = 0; i < os.getNumSlots(); ++i) {
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unsigned index = os.getSlotIndex(i);
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set = set.addAttributes(gIR->context(), index, os.getSlotAttributes(i));
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}
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return *this;
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}
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