1; RUN: llc -mtriple=i386-unknown-unknown -mcpu=core2 %s -o %t -filetype=obj
2; RUN: llvm-dwarfdump -debug-dump=line %t | FileCheck %s
3;
4; Generated from:
5;
6;   int foo(int i) {
7;     if (i < 10) return i - 1;
8;     return 0;
9;   }
10;
11; Manually generated debug nodes !14 and !15 to incorporate an
12; arbitrary discriminator with value 42.
13
14define i32 @foo(i32 %i) #0 !dbg !4 {
15entry:
16  %retval = alloca i32, align 4
17  %i.addr = alloca i32, align 4
18  store i32 %i, i32* %i.addr, align 4
19  %0 = load i32, i32* %i.addr, align 4, !dbg !10
20  %cmp = icmp slt i32 %0, 10, !dbg !10
21  br i1 %cmp, label %if.then, label %if.end, !dbg !10
22
23if.then:                                          ; preds = %entry
24  %1 = load i32, i32* %i.addr, align 4, !dbg !14
25  %sub = sub nsw i32 %1, 1, !dbg !14
26  store i32 %sub, i32* %retval, !dbg !14
27  br label %return, !dbg !14
28
29if.end:                                           ; preds = %entry
30  store i32 0, i32* %retval, !dbg !12
31  br label %return, !dbg !12
32
33return:                                           ; preds = %if.end, %if.then
34  %2 = load i32, i32* %retval, !dbg !13
35  ret i32 %2, !dbg !13
36}
37
38attributes #0 = { nounwind uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
39
40!llvm.dbg.cu = !{!0}
41!llvm.module.flags = !{!7, !8}
42!llvm.ident = !{!9}
43
44!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.5 ", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
45!1 = !DIFile(filename: "discriminator.c", directory: ".")
46!2 = !{}
47!4 = distinct !DISubprogram(name: "foo", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 1, file: !1, scope: !5, type: !6, variables: !2)
48!5 = !DIFile(filename: "discriminator.c", directory: ".")
49!6 = !DISubroutineType(types: !2)
50!7 = !{i32 2, !"Dwarf Version", i32 4}
51!8 = !{i32 1, !"Debug Info Version", i32 3}
52!9 = !{!"clang version 3.5 "}
53!10 = !DILocation(line: 2, scope: !11)
54!11 = distinct !DILexicalBlock(line: 2, column: 0, file: !1, scope: !4)
55!12 = !DILocation(line: 3, scope: !4)
56!13 = !DILocation(line: 4, scope: !4)
57!14 = !DILocation(line: 2, scope: !15)
58!15 = !DILexicalBlockFile(discriminator: 42, file: !1, scope: !4)
59
60; CHECK: Address            Line   Column File   ISA Discriminator Flags
61; CHECK: ------------------ ------ ------ ------ --- ------------- -------------
62; CHECK: 0x0000000000000011      2      0      1   0            42 {{$}}
63