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// Copyright (c) 2023, Compiler Explorer Authors
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import {LlvmPassDumpParser} from '../lib/parsers/llvm-pass-dump-parser';
import * as properties from '../lib/properties';
const languages = {
'c++': {id: 'c++'},
};
function deepCopy(obj) {
return JSON.parse(JSON.stringify(obj));
}
describe('llvm-pass-dump-parser filter', function () {
let llvmPassDumpParser;
before(() => {
const fakeProps = new properties.CompilerProps(languages, properties.fakeProps({}));
const compilerProps = (fakeProps.get as any).bind(fakeProps, 'c++');
llvmPassDumpParser = new LlvmPassDumpParser(compilerProps);
});
// prettier-ignore
const rawFuncIR = [
{text: ' # Machine code for function f(S1&, S2 const&): NoPHIs, TracksLiveness, TiedOpsRewritten'},
{text: 'define dso_local void @f(S1&, S2 const&)(%struct.S1* noundef nonnull align 8 dereferenceable(16) %s1, %struct.S2* noundef nonnull align 8 dereferenceable(16) %s2) #0 !dbg !7 {'},
{text: 'entry:'},
{text: ' %s1.addr = alloca %struct.S1*, align 8'},
{text: ' store %struct.S1* %s1, %struct.S1** %s1.addr, align 8, !tbaa !32'},
{text: ' call void @llvm.dbg.declare(metadata %struct.S1** %s1.addr, metadata !30, metadata !DIExpression()), !dbg !36'},
{text: ' call void @llvm.dbg.value(metadata %struct.S1* %s1, metadata !30, metadata !DIExpression()), !dbg !32'},
{text: ' DBG_VALUE $rdi, $noreg, !"s1", !DIExpression(), debug-location !32; example.cpp:0 line no:7'},
{text: ' store %struct.S2* %s2, %struct.S2** %s2.addr, align 8, !tbaa !32'},
{text: ' %0 = load %struct.S2*, %struct.S2** %s2.addr, align 8, !dbg !38, !tbaa !32'},
{text: ' %a = getelementptr inbounds %struct.S2, %struct.S2* %0, i32 0, i32 0, !dbg !39'},
{text: ' %1 = load i64, i64* %t, align 8, !dbg !40, !tbaa !41'},
{text: ' %2 = load %struct.S1*, %struct.S1** %s1.addr, align 8, !dbg !46, !tbaa !32'},
{text: ' store i64 %1, i64* %t2, align 8, !dbg !49, !tbaa !50'},
{text: ' %t3 = getelementptr inbounds %struct.Wrapper2, %struct.Wrapper2* %b, i32 0, i32 0, !dbg !54'},
{text: ' ret void, !dbg !61'},
];
it('should not filter out dbg metadata', function () {
const options = {filterDebugInfo: false};
// prettier-ignore
llvmPassDumpParser
.applyIrFilters(deepCopy(rawFuncIR), options)
.should.deep.equal(rawFuncIR);
});
it('should filter out dbg metadata too', function () {
const options = {filterDebugInfo: true};
// prettier-ignore
llvmPassDumpParser
.applyIrFilters(deepCopy(rawFuncIR), options)
.should.deep.equal([
{text: ' # Machine code for function f(S1&, S2 const&): NoPHIs, TracksLiveness, TiedOpsRewritten'},
{text: 'define dso_local void @f(S1&, S2 const&)(%struct.S1* noundef nonnull align 8 dereferenceable(16) %s1, %struct.S2* noundef nonnull align 8 dereferenceable(16) %s2) {'},
{text: 'entry:'},
{text: ' %s1.addr = alloca %struct.S1*, align 8'},
{text: ' store %struct.S1* %s1, %struct.S1** %s1.addr, align 8, !tbaa !32'},
{text: ' store %struct.S2* %s2, %struct.S2** %s2.addr, align 8, !tbaa !32'},
{text: ' %0 = load %struct.S2*, %struct.S2** %s2.addr, align 8, !tbaa !32'},
{text: ' %a = getelementptr inbounds %struct.S2, %struct.S2* %0, i32 0, i32 0'},
{text: ' %1 = load i64, i64* %t, align 8, !tbaa !41'},
{text: ' %2 = load %struct.S1*, %struct.S1** %s1.addr, align 8, !tbaa !32'},
{text: ' store i64 %1, i64* %t2, align 8, !tbaa !50'},
{text: ' %t3 = getelementptr inbounds %struct.Wrapper2, %struct.Wrapper2* %b, i32 0, i32 0'},
{text: ' ret void'},
]);
});
it('should filter out instruction metadata and object attribute group, leave debug instructions in place', function () {
// 'hide IR metadata' aims to decrease more visual noise than `hide debug info`
const options = {filterDebugInfo: false, filterIRMetadata: true};
// prettier-ignore
llvmPassDumpParser
.applyIrFilters(deepCopy(rawFuncIR), options)
.should.deep.equal([
{text: ' # Machine code for function f(S1&, S2 const&): NoPHIs, TracksLiveness, TiedOpsRewritten'},
{text: 'define dso_local void @f(S1&, S2 const&)(%struct.S1* noundef nonnull align 8 dereferenceable(16) %s1, %struct.S2* noundef nonnull align 8 dereferenceable(16) %s2) {'},
{text: 'entry:'},
{text: ' %s1.addr = alloca %struct.S1*, align 8'},
{text: ' store %struct.S1* %s1, %struct.S1** %s1.addr, align 8'},
{text: ' call void @llvm.dbg.declare(metadata %struct.S1** %s1.addr, metadata !30, metadata !DIExpression())'},
{text: ' call void @llvm.dbg.value(metadata %struct.S1* %s1, metadata !30, metadata !DIExpression())'},
{text: ' DBG_VALUE $rdi, $noreg, !"s1", !DIExpression(), debug-location !32; example.cpp:0 line no:7'},
{text: ' store %struct.S2* %s2, %struct.S2** %s2.addr, align 8'},
{text: ' %0 = load %struct.S2*, %struct.S2** %s2.addr, align 8'},
{text: ' %a = getelementptr inbounds %struct.S2, %struct.S2* %0, i32 0, i32 0'},
{text: ' %1 = load i64, i64* %t, align 8'},
{text: ' %2 = load %struct.S1*, %struct.S1** %s1.addr, align 8'},
{text: ' store i64 %1, i64* %t2, align 8'},
{text: ' %t3 = getelementptr inbounds %struct.Wrapper2, %struct.Wrapper2* %b, i32 0, i32 0'},
{text: ' ret void'},
]);
});
});