1 ; RUN: llc < %s -O0 -verify-machineinstrs | FileCheck %s
3 ; Test verifies if .loc is properly set for loop and block instructions --
4 ; the line number is not a 0 when DebugLoc is defined.
6 ; Compiled from the dbg-loop-loc.c:
8 ; int i, t, a = 0, b = 1;
9 ; for (i = 0; i < n; i++) {
10 ; t = a + b; a = b; b = t;
15 ; ModuleID = 'dbg-loop-loc.bc'
16 source_filename = "dbg-loop-loc.c"
17 target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"
18 target triple = "wasm32-unknown-unknown"
32 ; Function Attrs: noinline nounwind optnone
33 define hidden i32 @fib(i32 %n) #0 !dbg !7 {
35 %n.addr = alloca i32, align 4
36 %i = alloca i32, align 4
37 %t = alloca i32, align 4
38 %a = alloca i32, align 4
39 %b = alloca i32, align 4
40 store i32 %n, i32* %n.addr, align 4
41 call void @llvm.dbg.declare(metadata i32* %n.addr, metadata !11, metadata !DIExpression()), !dbg !12
42 call void @llvm.dbg.declare(metadata i32* %i, metadata !13, metadata !DIExpression()), !dbg !14
43 call void @llvm.dbg.declare(metadata i32* %t, metadata !15, metadata !DIExpression()), !dbg !16
44 call void @llvm.dbg.declare(metadata i32* %a, metadata !17, metadata !DIExpression()), !dbg !18
45 store i32 0, i32* %a, align 4, !dbg !18
46 call void @llvm.dbg.declare(metadata i32* %b, metadata !19, metadata !DIExpression()), !dbg !20
47 store i32 1, i32* %b, align 4, !dbg !20
48 store i32 0, i32* %i, align 4, !dbg !21
49 br label %for.cond, !dbg !23
51 for.cond: ; preds = %for.inc, %entry
52 %0 = load i32, i32* %i, align 4, !dbg !24
53 %1 = load i32, i32* %n.addr, align 4, !dbg !26
54 %cmp = icmp slt i32 %0, %1, !dbg !27
55 br i1 %cmp, label %for.body, label %for.end, !dbg !28
57 for.body: ; preds = %for.cond
58 %2 = load i32, i32* %a, align 4, !dbg !29
59 %3 = load i32, i32* %b, align 4, !dbg !31
60 %add = add nsw i32 %2, %3, !dbg !32
61 store i32 %add, i32* %t, align 4, !dbg !33
62 %4 = load i32, i32* %b, align 4, !dbg !34
63 store i32 %4, i32* %a, align 4, !dbg !35
64 %5 = load i32, i32* %t, align 4, !dbg !36
65 store i32 %5, i32* %b, align 4, !dbg !37
66 br label %for.inc, !dbg !38
68 for.inc: ; preds = %for.body
69 %6 = load i32, i32* %i, align 4, !dbg !39
70 %inc = add nsw i32 %6, 1, !dbg !39
71 store i32 %inc, i32* %i, align 4, !dbg !39
72 br label %for.cond, !dbg !40, !llvm.loop !41
74 for.end: ; preds = %for.cond
75 %7 = load i32, i32* %b, align 4, !dbg !43
79 ; Function Attrs: nounwind readnone speculatable
80 declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
82 attributes #0 = { noinline nounwind optnone "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "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"="generic" "unsafe-fp-math"="false" "use-soft-float"="false" }
83 attributes #1 = { nounwind readnone speculatable }
86 !llvm.module.flags = !{!3, !4, !5}
89 !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 7.0.0 (trunk 326837)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
90 !1 = !DIFile(filename: "dbg-loop-loc.c", directory: "/Users/yury/llvmwasm")
92 !3 = !{i32 2, !"Dwarf Version", i32 4}
93 !4 = !{i32 2, !"Debug Info Version", i32 3}
94 !5 = !{i32 1, !"wchar_size", i32 4}
95 !6 = !{!"clang version 7.0.0 (trunk 326837)"}
96 !7 = distinct !DISubprogram(name: "fib", scope: !1, file: !1, line: 1, type: !8, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2)
97 !8 = !DISubroutineType(types: !9)
99 !10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
100 !11 = !DILocalVariable(name: "n", arg: 1, scope: !7, file: !1, line: 1, type: !10)
101 !12 = !DILocation(line: 1, column: 13, scope: !7)
102 !13 = !DILocalVariable(name: "i", scope: !7, file: !1, line: 2, type: !10)
103 !14 = !DILocation(line: 2, column: 7, scope: !7)
104 !15 = !DILocalVariable(name: "t", scope: !7, file: !1, line: 2, type: !10)
105 !16 = !DILocation(line: 2, column: 10, scope: !7)
106 !17 = !DILocalVariable(name: "a", scope: !7, file: !1, line: 2, type: !10)
107 !18 = !DILocation(line: 2, column: 13, scope: !7)
108 !19 = !DILocalVariable(name: "b", scope: !7, file: !1, line: 2, type: !10)
109 !20 = !DILocation(line: 2, column: 20, scope: !7)
110 !21 = !DILocation(line: 3, column: 10, scope: !22)
111 !22 = distinct !DILexicalBlock(scope: !7, file: !1, line: 3, column: 3)
112 !23 = !DILocation(line: 3, column: 8, scope: !22)
113 !24 = !DILocation(line: 3, column: 15, scope: !25)
114 !25 = distinct !DILexicalBlock(scope: !22, file: !1, line: 3, column: 3)
115 !26 = !DILocation(line: 3, column: 19, scope: !25)
116 !27 = !DILocation(line: 3, column: 17, scope: !25)
117 !28 = !DILocation(line: 3, column: 3, scope: !22)
118 !29 = !DILocation(line: 4, column: 9, scope: !30)
119 !30 = distinct !DILexicalBlock(scope: !25, file: !1, line: 3, column: 27)
120 !31 = !DILocation(line: 4, column: 13, scope: !30)
121 !32 = !DILocation(line: 4, column: 11, scope: !30)
122 !33 = !DILocation(line: 4, column: 7, scope: !30)
123 !34 = !DILocation(line: 4, column: 20, scope: !30)
124 !35 = !DILocation(line: 4, column: 18, scope: !30)
125 !36 = !DILocation(line: 4, column: 27, scope: !30)
126 !37 = !DILocation(line: 4, column: 25, scope: !30)
127 !38 = !DILocation(line: 5, column: 3, scope: !30)
128 !39 = !DILocation(line: 3, column: 23, scope: !25)
129 !40 = !DILocation(line: 3, column: 3, scope: !25)
130 !41 = distinct !{!41, !28, !42}
131 !42 = !DILocation(line: 5, column: 3, scope: !22)
132 !43 = !DILocation(line: 6, column: 10, scope: !7)
133 !44 = !DILocation(line: 6, column: 3, scope: !7)