1 ; Inject metadata to set the .gcno file location
2 ; RUN: rm -rf %t && mkdir -p %t
3 ; RUN: echo '!19 = !{!"%/t/exit-block.ll", !0}' > %t/1
4 ; RUN: cat %s %t/1 > %t/2
6 ; By default, the exit block is the second.
7 ; RUN: opt -passes=insert-gcov-profiling -disable-output %t/2
8 ; RUN: llvm-cov gcov -n -dump %t/exit-block.gcno 2>&1 | FileCheck --check-prefixes=CHECK,EXIT-SECOND %s
10 ; But we can optionally emit it last, to match GCC<4.8 (r189778).
11 ; RUN: opt -passes=insert-gcov-profiling -default-gcov-version='407*' -disable-output %t/2
12 ; RUN: llvm-cov gcov -n -dump %t/exit-block.gcno 2>&1 | FileCheck --check-prefixes=CHECK,EXIT-LAST %s
14 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
15 target triple = "x86_64-unknown-linux-gnu"
17 @A = common global i32 0, align 4, !dbg !9
19 ; Function Attrs: nounwind uwtable
20 define void @test() #0 !dbg !4 {
22 tail call void (...) @f() #2, !dbg !14
23 %0 = load i32, ptr @A, align 4, !dbg !15
24 %tobool = icmp eq i32 %0, 0, !dbg !15
25 br i1 %tobool, label %if.end, label %if.then, !dbg !15
27 if.then: ; preds = %entry
28 tail call void (...) @g() #2, !dbg !16
29 br label %if.end, !dbg !16
31 if.end: ; preds = %entry, %if.then
35 declare void @f(...) #1
37 declare void @g(...) #1
39 attributes #0 = { nounwind uwtable "less-precise-fpmad"="false" "frame-pointer"="none" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
40 attributes #1 = { "less-precise-fpmad"="false" "frame-pointer"="none" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
41 attributes #2 = { nounwind }
45 !llvm.module.flags = !{!11, !12}
48 !0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.6.0 (trunk 223182)", isOptimized: true, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, globals: !8, imports: !2)
49 !1 = !DIFile(filename: ".../llvm/test/Transforms/GCOVProfiling/exit-block.ll", directory: "")
51 !4 = distinct !DISubprogram(name: "test", line: 5, isLocal: false, isDefinition: true, isOptimized: true, unit: !0, scopeLine: 5, file: !1, scope: !5, type: !6, retainedNodes: !2)
52 !5 = !DIFile(filename: ".../llvm/test/Transforms/GCOVProfiling/exit-block.ll", directory: "")
53 !6 = !DISubroutineType(types: !7)
56 !9 = !DIGlobalVariableExpression(var: !DIGlobalVariable(name: "A", line: 3, isLocal: false, isDefinition: true, scope: null, file: !5, type: !10), expr: !DIExpression())
57 !10 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
58 !11 = !{i32 2, !"Dwarf Version", i32 4}
59 !12 = !{i32 2, !"Debug Info Version", i32 3}
60 !13 = !{!"clang version 3.6.0 (trunk 223182)"}
61 !14 = !DILocation(line: 6, column: 3, scope: !4)
62 !15 = !DILocation(line: 7, column: 7, scope: !4)
63 !16 = !DILocation(line: 8, column: 5, scope: !17)
64 !17 = distinct !DILexicalBlock(line: 7, column: 7, file: !1, scope: !4)
65 !18 = !DILocation(line: 9, column: 1, scope: !4)
67 ; There should be no destination edges for the exit block.
68 ; CHECK: Block : 1 Counter : 0
69 ; EXIT-LAST: Destination Edges
70 ; EXIT-SECOND-NOT: Destination Edges
71 ; CHECK: Block : 2 Counter : 0
72 ; CHECK: Block : 4 Counter : 0
73 ; EXIT-LAST-NOT: Destination Edges
74 ; EXIT-SECOND: Destination Edges