1 ; Make sure that coro-split correctly deals with debug information.
2 ; The test here is simply that it does not result in bad IR that will crash opt.
3 ; RUN: opt < %s -passes='cgscc(coro-split),simplifycfg,early-cse' -disable-output
4 ; RUN: opt --try-experimental-debuginfo-iterators < %s -passes='cgscc(coro-split),simplifycfg,early-cse' -disable-output
5 source_filename = "coro.c"
6 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
7 target triple = "x86_64-unknown-linux-gnu"
9 ; Function Attrs: nounwind readnone
10 declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
12 declare void @bar(...) local_unnamed_addr #2
14 ; Function Attrs: nounwind uwtable
15 define ptr @f() #3 !dbg !16 {
17 %0 = tail call token @llvm.coro.id(i32 0, ptr null, ptr @f, ptr null), !dbg !26
18 %1 = tail call i64 @llvm.coro.size.i64(), !dbg !26
19 %call = tail call ptr @malloc(i64 %1), !dbg !26
20 %2 = tail call ptr @llvm.coro.begin(token %0, ptr %call) #9, !dbg !26
21 tail call void @llvm.dbg.value(metadata ptr %2, metadata !21, metadata !12), !dbg !26
22 br label %for.cond, !dbg !27
24 for.cond: ; preds = %for.cond, %entry
25 tail call void @llvm.dbg.value(metadata i32 undef, metadata !22, metadata !12), !dbg !28
26 tail call void @llvm.dbg.value(metadata i32 undef, metadata !11, metadata !12) #7, !dbg !29
27 tail call void (...) @bar() #7, !dbg !33
28 %3 = tail call token @llvm.coro.save(ptr null), !dbg !34
29 %4 = tail call i8 @llvm.coro.suspend(token %3, i1 false), !dbg !34
30 %conv = sext i8 %4 to i32, !dbg !34
31 switch i32 %conv, label %coro_Suspend [
32 i32 0, label %for.cond
33 i32 1, label %coro_Cleanup
36 coro_Cleanup: ; preds = %for.cond
37 %5 = tail call ptr @llvm.coro.free(token %0, ptr %2), !dbg !35
38 tail call void @free(ptr nonnull %5), !dbg !36
39 br label %coro_Suspend, !dbg !36
41 coro_Suspend: ; preds = %for.cond, %if.then, %coro_Cleanup
42 tail call i1 @llvm.coro.end(ptr null, i1 false, token none) #9, !dbg !38
46 ; Function Attrs: argmemonly nounwind
47 declare void @llvm.lifetime.start.p0(i64, ptr nocapture) #4
49 ; Function Attrs: argmemonly nounwind readonly
50 declare token @llvm.coro.id(i32, ptr readnone, ptr nocapture readonly, ptr) #5
52 ; Function Attrs: nounwind
53 declare noalias ptr @malloc(i64) local_unnamed_addr #6
54 declare i64 @llvm.coro.size.i64() #1
55 declare ptr @llvm.coro.begin(token, ptr writeonly) #7
56 declare token @llvm.coro.save(ptr) #7
57 declare i8 @llvm.coro.suspend(token, i1) #7
58 declare void @llvm.lifetime.end.p0(i64, ptr nocapture) #4
59 declare ptr @llvm.coro.free(token, ptr nocapture readonly) #5
60 declare void @free(ptr nocapture) local_unnamed_addr #6
61 declare i1 @llvm.coro.end(ptr, i1, token) #7
62 declare ptr @llvm.coro.subfn.addr(ptr nocapture readonly, i8) #5
64 declare void @llvm.dbg.value(metadata, metadata, metadata) #1
66 attributes #0 = { nounwind uwtable "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="none" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
67 attributes #1 = { nounwind readnone }
68 attributes #2 = { "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="none" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
69 attributes #3 = { nounwind uwtable presplitcoroutine "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="none" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
70 attributes #4 = { argmemonly nounwind }
71 attributes #5 = { argmemonly nounwind readonly }
72 attributes #6 = { nounwind "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="none" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
73 attributes #7 = { nounwind }
74 attributes #8 = { alwaysinline nounwind }
75 attributes #9 = { noduplicate }
78 !llvm.module.flags = !{!3, !4}
81 !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 4.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
82 !1 = !DIFile(filename: "coro.c", directory: "/home/gor/build/bin")
84 !3 = !{i32 2, !"Dwarf Version", i32 4}
85 !4 = !{i32 2, !"Debug Info Version", i32 3}
86 !5 = !{!"clang version 4.0.0"}
87 !6 = distinct !DISubprogram(name: "print", scope: !1, file: !1, line: 6, type: !7, isLocal: false, isDefinition: true, scopeLine: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !10)
88 !7 = !DISubroutineType(types: !8)
90 !9 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
92 !11 = !DILocalVariable(name: "v", arg: 1, scope: !6, file: !1, line: 6, type: !9)
94 !13 = !DILocation(line: 6, column: 16, scope: !6)
95 !14 = !DILocation(line: 6, column: 19, scope: !6)
96 !15 = !DILocation(line: 6, column: 25, scope: !6)
97 !16 = distinct !DISubprogram(name: "f", scope: !1, file: !1, line: 8, type: !17, isLocal: false, isDefinition: true, scopeLine: 8, isOptimized: true, unit: !0, retainedNodes: !20)
98 !17 = !DISubroutineType(types: !18)
100 !19 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 64, align: 64)
101 !20 = !{!21, !22, !24}
102 !21 = !DILocalVariable(name: "coro_hdl", scope: !16, file: !1, line: 9, type: !19)
103 !22 = !DILocalVariable(name: "i", scope: !23, file: !1, line: 11, type: !9)
104 !23 = distinct !DILexicalBlock(scope: !16, file: !1, line: 11, column: 3)
105 !24 = !DILocalVariable(name: "coro_mem", scope: !25, file: !1, line: 16, type: !19)
106 !25 = distinct !DILexicalBlock(scope: !16, file: !1, line: 16, column: 3)
107 !26 = !DILocation(line: 9, column: 3, scope: !16)
108 !27 = !DILocation(line: 11, column: 8, scope: !23)
109 !28 = !DILocation(line: 11, column: 12, scope: !23)
110 !29 = !DILocation(line: 6, column: 16, scope: !6, inlinedAt: !30)
111 !30 = distinct !DILocation(line: 12, column: 5, scope: !31)
112 !31 = distinct !DILexicalBlock(scope: !32, file: !1, line: 11, column: 25)
113 !32 = distinct !DILexicalBlock(scope: !23, file: !1, line: 11, column: 3)
114 !33 = !DILocation(line: 6, column: 19, scope: !6, inlinedAt: !30)
115 !34 = !DILocation(line: 13, column: 5, scope: !31)
116 !35 = !DILocation(line: 16, column: 3, scope: !25)
117 !36 = !DILocation(line: 16, column: 3, scope: !37)
118 !37 = distinct !DILexicalBlock(scope: !25, file: !1, line: 16, column: 3)
119 !38 = !DILocation(line: 16, column: 3, scope: !16)
120 !39 = !DILocation(line: 17, column: 1, scope: !16)