2 ; RUN: llc -mtriple=i386-linux-gnu -filetype=obj -relocation-model=pic %s -o /dev/null
4 ; Derived from the test case in PR20367, there's nothing really positive to
5 ; test here (hence no FileCheck, etc). All that was wrong is that the debug info
6 ; intrinsics (introduced by inlining) in 'f1' were causing codegen to crash, but
7 ; since 'f1' is a nodebug function, there's no positive outcome to confirm, just
8 ; that debug info doesn't get in the way/cause a crash.
10 ; The test case isn't particularly well reduced/tidy, but as simple as I could
11 ; get the C++ source. I assume the complexity is mostly just about producing a
12 ; certain amount of register pressure, so it might be able to be simplified/made
16 ; $ clang-tot -cc1 -triple i386 -emit-obj -g -O3 repro.cpp
17 ; void sink(const ptr);
29 ; inline __attribute__((always_inline)) void s2(string *lhs) { sink(lhs->mem); }
30 ; inline __attribute__((always_inline)) void f() {
35 ; void __attribute__((nodebug)) f1() {
36 ; for (int iter = 0; iter != 2; ++iter) {
43 %struct.string = type { ptr }
45 @str = external constant ptr
46 @b = external global i8
48 ; Function Attrs: nounwind
49 define void @_Z2f1v() #0 {
51 %str2.i = alloca %struct.string, align 4
52 %0 = load ptr, ptr @str, align 4
55 for.body: ; preds = %for.body, %entry
56 %iter.02 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
57 call void @llvm.lifetime.start(i64 4, ptr %str2.i), !dbg !26
58 call void @llvm.dbg.value(metadata ptr %str2.i, metadata !16, metadata !DIExpression(DW_OP_deref)) #3, !dbg !26
59 call void @llvm.dbg.value(metadata ptr %str2.i, metadata !27, metadata !DIExpression(DW_OP_deref)) #3, !dbg !29
60 call void @_Z4sinkPKv(ptr undef) #3, !dbg !29
61 call void @_Z4sinkPKv(ptr %str2.i) #3, !dbg !30
62 call void @llvm.lifetime.end(i64 4, ptr %str2.i), !dbg !31
63 %1 = load ptr, ptr %0, align 4, !tbaa !32
64 call void @_Z4sinkPKv(ptr %1) #3
65 %2 = load i8, ptr @b, align 1, !tbaa !37, !range !39
66 %tobool = icmp ne i8 %2, 0
67 %inc = add nsw i32 %iter.02, 1
68 %cmp = icmp eq i32 %inc, 2
69 %or.cond = or i1 %tobool, %cmp
70 br i1 %or.cond, label %for.end, label %for.body
72 for.end: ; preds = %for.body
76 declare void @_Z4sinkPKv(ptr) #1
78 ; Function Attrs: nounwind readnone
79 declare void @llvm.dbg.value(metadata, metadata, metadata) #2
81 ; Function Attrs: nounwind
82 declare void @llvm.lifetime.start(i64, ptr nocapture) #3
84 ; Function Attrs: nounwind
85 declare void @llvm.lifetime.end(i64, ptr nocapture) #3
87 attributes #0 = { nounwind "less-precise-fpmad"="false" "frame-pointer"="none" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-realign-stack" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
88 attributes #1 = { "less-precise-fpmad"="false" "frame-pointer"="none" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-realign-stack" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
89 attributes #2 = { nounwind readnone }
90 attributes #3 = { nounwind }
93 !llvm.module.flags = !{!23, !24}
96 !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.5.0 ", isOptimized: true, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !3, globals: !2, imports: !2)
97 !1 = !DIFile(filename: "<stdin>", directory: "/tmp/dbginfo")
100 !4 = !DICompositeType(tag: DW_TAG_structure_type, name: "string", line: 7, size: 32, align: 32, file: !5, elements: !6, identifier: "_ZTS6string")
101 !5 = !DIFile(filename: "repro.cpp", directory: "/tmp/dbginfo")
103 !7 = !DIDerivedType(tag: DW_TAG_member, name: "mem", line: 8, size: 32, align: 32, file: !5, scope: !4, baseType: !8)
104 !8 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 32, align: 32, baseType: !9)
105 !9 = !DIBasicType(tag: DW_TAG_base_type, name: "unsigned int", size: 32, align: 32, encoding: DW_ATE_unsigned)
106 !11 = distinct !DISubprogram(name: "f", linkageName: "_Z1fv", line: 14, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 14, file: !5, scope: !12, type: !13, retainedNodes: !15)
107 !12 = !DIFile(filename: "repro.cpp", directory: "/tmp/dbginfo")
108 !13 = !DISubroutineType(types: !14)
111 !16 = !DILocalVariable(name: "str2", line: 15, scope: !11, file: !12, type: !4)
112 !17 = distinct !DISubprogram(name: "s2", linkageName: "_Z2s2P6string", line: 13, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 13, file: !5, scope: !12, type: !18, retainedNodes: !21)
113 !18 = !DISubroutineType(types: !19)
115 !20 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 32, align: 32, baseType: !4)
117 !22 = !DILocalVariable(name: "lhs", line: 13, arg: 1, scope: !17, file: !12, type: !20)
118 !23 = !{i32 2, !"Dwarf Version", i32 4}
119 !24 = !{i32 2, !"Debug Info Version", i32 3}
120 !25 = !{!"clang version 3.5.0 "}
121 !26 = !DILocation(line: 15, scope: !11)
122 !27 = !DILocalVariable(name: "lhs", line: 13, arg: 1, scope: !17, file: !12, type: !20)
123 !28 = !DILocation(line: 16, scope: !11)
124 !29 = !DILocation(line: 13, scope: !17, inlinedAt: !28)
125 !30 = !DILocation(line: 17, scope: !11)
126 !31 = !DILocation(line: 18, scope: !11)
127 !32 = !{!33, !34, i64 0}
128 !33 = !{!"struct", !34, i64 0}
129 !34 = !{!"any pointer", !35, i64 0}
130 !35 = !{!"omnipotent char", !36, i64 0}
131 !36 = !{!"Simple C/C++ TBAA"}
132 !37 = !{!38, !38, i64 0}
133 !38 = !{!"bool", !35, i64 0}