1 ; Inject metadata to set the .gcno file location
2 ; RUN: echo '!19 = !{!"%/T/return-block.ll", !0}' > %t1
3 ; RUN: cat %s %t1 > %t2
4 ; RUN: opt -insert-gcov-profiling -disable-output %t2
5 ; RUN: llvm-cov gcov -n -dump %T/return-block.gcno 2>&1 | FileCheck %s
7 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
8 target triple = "x86_64-unknown-linux-gnu"
10 @A = common global i32 0, align 4
12 ; Function Attrs: nounwind uwtable
13 define void @test() #0 {
15 tail call void (...)* @f() #2, !dbg !14
16 %0 = load i32* @A, align 4, !dbg !15
17 %tobool = icmp eq i32 %0, 0, !dbg !15
18 br i1 %tobool, label %if.end, label %if.then, !dbg !15
20 if.then: ; preds = %entry
21 tail call void (...)* @g() #2, !dbg !16
22 br label %if.end, !dbg !16
24 if.end: ; preds = %entry, %if.then
28 declare void @f(...) #1
30 declare void @g(...) #1
32 attributes #0 = { nounwind uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
33 attributes #1 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
34 attributes #2 = { nounwind }
38 !llvm.module.flags = !{!11, !12}
41 !0 = !{!"0x11\0012\00clang version 3.6.0 (trunk 223182)\001\00\000\00\001", !1, !2, !2, !3, !8, !2} ; [ DW_TAG_compile_unit ] [return-block.c] [DW_LANG_C99]
42 !1 = !{!".../llvm/test/Transforms/GCOVProfiling/return-block.ll", !""}
45 !4 = !{!"0x2e\00test\00test\00\005\000\001\000\000\000\001\005", !1, !5, !6, null, void ()* @test, null, null, !2} ; [ DW_TAG_subprogram ] [line 5] [def] [test]
46 !5 = !{!"0x29", !1} ; [ DW_TAG_file_type ] [return-block.c]
47 !6 = !{!"0x15\00\000\000\000\000\000\000", null, null, null, !7, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
50 !9 = !{!"0x34\00A\00A\00\003\000\001", null, !5, !10, i32* @A, null} ; [ DW_TAG_variable ] [A] [line 3] [def]
51 !10 = !{!"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
52 !11 = !{i32 2, !"Dwarf Version", i32 4}
53 !12 = !{i32 2, !"Debug Info Version", i32 2}
54 !13 = !{!"clang version 3.6.0 (trunk 223182)"}
55 !14 = !MDLocation(line: 6, column: 3, scope: !4)
56 !15 = !MDLocation(line: 7, column: 7, scope: !4)
57 !16 = !MDLocation(line: 8, column: 5, scope: !17)
58 !17 = !{!"0xb\007\007\000", !1, !4} ; [ DW_TAG_lexical_block ] [return-block.c]
59 !18 = !MDLocation(line: 9, column: 1, scope: !4)
61 ; There should be no destination edges for block 1.
62 ; CHECK: Block : 0 Counter : 0
63 ; CHECK-NEXT: Destination Edges : 2 (0),
64 ; CHECK-NEXT: Block : 1 Counter : 0
65 ; CHECK-NEXT: Source Edges : 4 (0),
66 ; CHECK-NEXT: Block : 2 Counter : 0