1 ; RUN: opt < %s -add-discriminators -S | FileCheck %s
3 ; Test that the only instructions that receive a new discriminator in
4 ; the block 'if.then' are those that share the same line number as
5 ; the branch in 'entry'.
11 ; if (i < 10) { x = i;
16 define void @foo(i32 %i) #0 {
18 %i.addr = alloca i32, align 4
19 %x = alloca i32, align 4
20 %y = alloca i32, align 4
21 store i32 %i, i32* %i.addr, align 4
22 %0 = load i32* %i.addr, align 4, !dbg !10
23 %cmp = icmp slt i32 %0, 10, !dbg !10
24 br i1 %cmp, label %if.then, label %if.end, !dbg !10
26 if.then: ; preds = %entry
27 %1 = load i32* %i.addr, align 4, !dbg !12
28 store i32 %1, i32* %x, align 4, !dbg !12
30 %2 = load i32* %i.addr, align 4, !dbg !14
31 ; CHECK: %2 = load i32* %i.addr, align 4, !dbg !15
33 %sub = sub nsw i32 0, %2, !dbg !14
34 ; CHECK: %sub = sub nsw i32 0, %2, !dbg !15
36 store i32 %sub, i32* %y, align 4, !dbg !14
37 ; CHECK: store i32 %sub, i32* %y, align 4, !dbg !15
39 br label %if.end, !dbg !15
40 ; CHECK: br label %if.end, !dbg !16
42 if.end: ; preds = %if.then, %entry
44 ; CHECK: ret void, !dbg !17
47 attributes #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" }
50 !llvm.module.flags = !{!7, !8}
53 !0 = metadata !{metadata !"0x11\0012\00clang version 3.5 (trunk 199750) (llvm/trunk 199751)\000\00\000\00\000", metadata !1, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2} ; [ DW_TAG_compile_unit ] [first-only.c] [DW_LANG_C99]
54 !1 = metadata !{metadata !"first-only.c", metadata !"."}
55 !2 = metadata !{i32 0}
56 !3 = metadata !{metadata !4}
57 !4 = metadata !{metadata !"0x2e\00foo\00foo\00\001\000\001\000\006\00256\000\001", metadata !1, metadata !5, metadata !6, null, void (i32)* @foo, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 1] [def] [foo]
58 !5 = metadata !{metadata !"0x29", metadata !1} ; [ DW_TAG_file_type ] [first-only.c]
59 !6 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !2, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
60 !7 = metadata !{i32 2, metadata !"Dwarf Version", i32 4}
61 !8 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}
62 !9 = metadata !{metadata !"clang version 3.5 (trunk 199750) (llvm/trunk 199751)"}
63 !10 = metadata !{i32 3, i32 0, metadata !11, null}
65 !11 = metadata !{metadata !"0xb\003\000\000", metadata !1, metadata !4} ; [ DW_TAG_lexical_block ] [first-only.c]
66 ; CHECK: !11 = metadata !{metadata !"0xb\003\000\000", metadata !1, metadata !4}
68 !12 = metadata !{i32 3, i32 0, metadata !13, null}
70 !13 = metadata !{metadata !"0xb\003\000\001", metadata !1, metadata !11} ; [ DW_TAG_lexical_block ] [first-only.c]
71 ; CHECK: !13 = metadata !{metadata !"0xb\001", metadata !1, metadata !14} ; [ DW_TAG_lexical_block ] [./first-only.c]
73 !14 = metadata !{i32 4, i32 0, metadata !13, null}
74 ; CHECK: !14 = metadata !{metadata !"0xb\003\000\001", metadata !1, metadata !11}
76 !15 = metadata !{i32 5, i32 0, metadata !13, null}
77 ; CHECK: !15 = metadata !{i32 4, i32 0, metadata !14, null}
79 !16 = metadata !{i32 6, i32 0, metadata !4, null}
80 ; CHECK: !16 = metadata !{i32 5, i32 0, metadata !14, null}
81 ; CHECK: !17 = metadata !{i32 6, i32 0, metadata !4, null}