58 lines · cpp
1//===- CallLowering.cpp - CallLowering unit tests -------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#include "llvm/CodeGen/GlobalISel/CallLowering.h"10#include "llvm/ADT/StringRef.h"11#include "llvm/AsmParser/Parser.h"12#include "llvm/IR/LLVMContext.h"13#include "llvm/IR/Module.h"14#include "llvm/Support/SourceMgr.h"15#include "gtest/gtest.h"16 17using namespace llvm;18 19namespace {20struct TargetCallLoweringTest : public CallLowering, testing::Test {21 LLVMContext C;22 23public:24 TargetCallLoweringTest() : CallLowering(nullptr) {}25 26 std::unique_ptr<Module> parseIR(const char *IR) {27 SMDiagnostic Err;28 std::unique_ptr<Module> Mod = parseAssemblyString(IR, Err, C);29 if (!Mod)30 Err.print("TestTargetCallLoweringTest", errs());31 return Mod;32 }33};34} // namespace35 36TEST_F(TargetCallLoweringTest, ArgByRef) {37 std::unique_ptr<Module> M = parseIR(R"(38define void @foo(ptr %p0, ptr byref(i32) align(4) %p1) {39 ret void40}41)");42 const DataLayout &DL = M->getDataLayout();43 Function *F = M->getFunction("foo");44 // Dummy vregs.45 SmallVector<Register, 4> VRegs(1, 1);46 47 CallLowering::ArgInfo Arg0(VRegs, F->getArg(0)->getType(), 0);48 setArgFlags(Arg0, AttributeList::FirstArgIndex + 0, DL, *F);49 EXPECT_TRUE(Arg0.Flags[0].isPointer());50 EXPECT_FALSE(Arg0.Flags[0].isByRef());51 52 CallLowering::ArgInfo Arg1(VRegs, F->getArg(1)->getType(), 1);53 setArgFlags(Arg1, AttributeList::FirstArgIndex + 1, DL, *F);54 EXPECT_TRUE(Arg1.Flags[0].isPointer());55 EXPECT_TRUE(Arg1.Flags[0].isByRef());56 EXPECT_EQ(Arg1.Flags[0].getByRefSize(), 4U);57}58