1 //===- AsmStreamerTest.cpp - Triple unit tests ----------------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #include "gtest/gtest.h"
11 #include "llvm/MC/MCContext.h"
12 #include "llvm/MC/MCSection.h"
13 #include "llvm/MC/MCStreamer.h"
14 #include "llvm/MC/MCValue.h"
15 #include "llvm/Support/raw_ostream.h"
21 class StringAsmStreamer {
23 raw_string_ostream OS;
28 StringAsmStreamer() : OS(Str), Streamer(createAsmStreamer(Context, OS)) {}
29 ~StringAsmStreamer() {
33 MCContext &getContext() { return Context; }
34 MCStreamer &getStreamer() { return *Streamer; }
36 const std::string &getString() {
42 TEST(AsmStreamer, EmptyOutput) {
44 EXPECT_EQ("", S.getString());
47 TEST(AsmStreamer, Sections) {
49 MCSection *Sec0 = MCSection::Create("foo", SectionKind(), S.getContext());
50 S.getStreamer().SwitchSection(Sec0);
51 EXPECT_EQ(".section foo\n", S.getString());
54 TEST(AsmStreamer, Values) {
56 MCSection *Sec0 = MCSection::Create("foo", SectionKind(), S.getContext());
57 MCSymbol *A = S.getContext().CreateSymbol("a");
58 MCSymbol *B = S.getContext().CreateSymbol("b");
59 S.getStreamer().SwitchSection(Sec0);
60 S.getStreamer().EmitLabel(A);
61 S.getStreamer().EmitLabel(B);
62 S.getStreamer().EmitValue(MCValue::get(A, B, 10), 1);
63 S.getStreamer().EmitValue(MCValue::get(A, B, 10), 2);
64 S.getStreamer().EmitValue(MCValue::get(A, B, 10), 4);
65 S.getStreamer().EmitValue(MCValue::get(A, B, 10), 8);
66 EXPECT_EQ(".section foo\n\
72 .quad a - b + 10\n", S.getString());
75 TEST(AsmStreamer, Align) {
77 MCSection *Sec0 = MCSection::Create("foo", SectionKind(), S.getContext());
78 S.getStreamer().SwitchSection(Sec0);
79 S.getStreamer().EmitValueToAlignment(4);
80 S.getStreamer().EmitValueToAlignment(4, /*Value=*/12, /*ValueSize=*/2);
81 S.getStreamer().EmitValueToAlignment(8, /*Value=*/12, /*ValueSize=*/4,
82 /*MaxBytesToEmit=*/24);
83 EXPECT_EQ(".section foo\n\
86 .p2alignl 3, 12, 24\n", S.getString());
89 TEST(AsmStreamer, Org) {
91 MCSection *Sec0 = MCSection::Create("foo", SectionKind(), S.getContext());
92 S.getStreamer().SwitchSection(Sec0);
93 MCSymbol *A = S.getContext().CreateSymbol("a");
94 S.getStreamer().EmitLabel(A);
95 S.getStreamer().EmitValueToOffset(MCValue::get(A, 0, 4), 32);
96 EXPECT_EQ(".section foo\n\
98 .org a + 4, 32\n", S.getString());