50 lines
1.9 KiB
C++
50 lines
1.9 KiB
C++
//===- LazyEmittingLayerTest.cpp - Unit tests for the lazy emitting layer -===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "OrcTestCommon.h"
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#include "llvm/ADT/SmallVector.h"
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#include "llvm/ExecutionEngine/Orc/IndirectionUtils.h"
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#include "gtest/gtest.h"
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using namespace llvm;
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namespace {
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TEST(IndirectionUtilsTest, MakeStub) {
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LLVMContext Context;
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ModuleBuilder MB(Context, "x86_64-apple-macosx10.10", "");
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Function *F = MB.createFunctionDecl<void(DummyStruct, DummyStruct)>("");
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SmallVector<AttributeSet, 4> Attrs;
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Attrs.push_back(
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AttributeSet::get(MB.getModule()->getContext(), 1U,
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AttrBuilder().addAttribute(Attribute::StructRet)));
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Attrs.push_back(
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AttributeSet::get(MB.getModule()->getContext(), 2U,
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AttrBuilder().addAttribute(Attribute::ByVal)));
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Attrs.push_back(
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AttributeSet::get(MB.getModule()->getContext(), ~0U,
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AttrBuilder().addAttribute(Attribute::NoUnwind)));
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F->setAttributes(AttributeSet::get(MB.getModule()->getContext(), Attrs));
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auto ImplPtr = orc::createImplPointer(*F->getType(), *MB.getModule(), "", nullptr);
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orc::makeStub(*F, *ImplPtr);
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auto II = F->getEntryBlock().begin();
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EXPECT_TRUE(isa<LoadInst>(*II)) << "First instruction of stub should be a load.";
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auto *Call = dyn_cast<CallInst>(std::next(II));
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EXPECT_TRUE(Call != nullptr) << "Second instruction of stub should be a call.";
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EXPECT_TRUE(Call->isTailCall()) << "Indirect call from stub should be tail call.";
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EXPECT_TRUE(Call->hasStructRetAttr())
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<< "makeStub should propagate sret attr on 1st argument.";
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EXPECT_TRUE(Call->paramHasAttr(2U, Attribute::ByVal))
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<< "makeStub should propagate byval attr on 2nd argument.";
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}
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}
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