1 //===- LazyEmittingLayerTest.cpp - Unit tests for the lazy emitting layer -===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9
10 #include "OrcTestCommon.h"
11 #include "llvm/ADT/SmallVector.h"
12 #include "llvm/ExecutionEngine/Orc/IndirectionUtils.h"
13 #include "gtest/gtest.h"
14
15 using namespace llvm;
16
17 namespace {
18
TEST(IndirectionUtilsTest,MakeStub)19 TEST(IndirectionUtilsTest, MakeStub) {
20 LLVMContext Context;
21 ModuleBuilder MB(Context, "x86_64-apple-macosx10.10", "");
22 Function *F = MB.createFunctionDecl<void(DummyStruct, DummyStruct)>("");
23 SmallVector<AttributeSet, 4> Attrs;
24 Attrs.push_back(
25 AttributeSet::get(MB.getModule()->getContext(), 1U,
26 AttrBuilder().addAttribute(Attribute::StructRet)));
27 Attrs.push_back(
28 AttributeSet::get(MB.getModule()->getContext(), 2U,
29 AttrBuilder().addAttribute(Attribute::ByVal)));
30 Attrs.push_back(
31 AttributeSet::get(MB.getModule()->getContext(), ~0U,
32 AttrBuilder().addAttribute(Attribute::NoUnwind)));
33 F->setAttributes(AttributeSet::get(MB.getModule()->getContext(), Attrs));
34
35 auto ImplPtr = orc::createImplPointer(*F->getType(), *MB.getModule(), "", nullptr);
36 orc::makeStub(*F, *ImplPtr);
37
38 auto II = F->getEntryBlock().begin();
39 EXPECT_TRUE(isa<LoadInst>(*II)) << "First instruction of stub should be a load.";
40 auto *Call = dyn_cast<CallInst>(std::next(II));
41 EXPECT_TRUE(Call != nullptr) << "Second instruction of stub should be a call.";
42 EXPECT_TRUE(Call->isTailCall()) << "Indirect call from stub should be tail call.";
43 EXPECT_TRUE(Call->hasStructRetAttr())
44 << "makeStub should propagate sret attr on 1st argument.";
45 EXPECT_TRUE(Call->paramHasAttr(2U, Attribute::ByVal))
46 << "makeStub should propagate byval attr on 2nd argument.";
47 }
48
49 }
50