1 ; Test that GCOV instrumentation numbers functions correctly when some
2 ; functions aren't emitted.
4 ; Inject metadata to set the .gcno file location
5 ; RUN: rm -rf %t && mkdir -p %t
6 ; RUN: echo '!14 = !{!"%/t/function-numbering.ll", !0}' > %t/1
7 ; RUN: cat %s %t/1 > %t/2
9 ; RUN: opt -insert-gcov-profiling -S < %t/2 | FileCheck --check-prefix GCDA %s
10 ; RUN: llvm-cov gcov -n -dump %t/function-numbering.gcno 2>&1 | FileCheck --check-prefix GCNO %s
11 ; RUNN: rm %t/function-numbering.gcno
13 ; RUN: opt -passes=insert-gcov-profiling -S < %t/2 | FileCheck --check-prefix GCDA %s
14 ; RUN: llvm-cov gcov -n -dump %t/function-numbering.gcno 2>&1 | FileCheck --check-prefix GCNO %s
16 target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
17 target triple = "x86_64-apple-macosx10.10.0"
19 ; GCDA: @[[FOO:[0-9]+]] = private unnamed_addr constant [4 x i8] c"foo\00"
20 ; GCDA-NOT: @{{[0-9]+}} = private unnamed_addr constant .* c"bar\00"
21 ; GCDA: @[[BAZ:[0-9]+]] = private unnamed_addr constant [4 x i8] c"baz\00"
22 ; GCDA: @__llvm_internal_gcov_emit_function_args.0 = internal unnamed_addr constant
23 ; GCDA-SAME: { i32 0, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @[[FOO]]
24 ; GCDA-SAME: { i32 1, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @[[BAZ]]
26 ; GCDA-LABEL: define internal void @__llvm_gcov_writeout() {{.*}} {
28 ; GCDA-NEXT: br label %[[FILE_LOOP_HEADER:.*]]
30 ; GCDA: [[FILE_LOOP_HEADER]]:
31 ; GCDA-NEXT: %[[IV:.*]] = phi i32 [ 0, %entry ], [ %[[NEXT_IV:.*]], %[[FILE_LOOP_LATCH:.*]] ]
32 ; GCDA-NEXT: %[[FILE_INFO:.*]] = getelementptr inbounds {{.*}}, {{.*}}* @__llvm_internal_gcov_emit_file_info, i32 0, i32 %[[IV]]
33 ; GCDA-NEXT: %[[START_FILE_ARGS:.*]] = getelementptr inbounds {{.*}}, {{.*}}* %[[FILE_INFO]], i32 0, i32 0
34 ; GCDA-NEXT: %[[START_FILE_ARG_0_PTR:.*]] = getelementptr inbounds {{.*}}, {{.*}}* %[[START_FILE_ARGS]], i32 0, i32 0
35 ; GCDA-NEXT: %[[START_FILE_ARG_0:.*]] = load i8*, i8** %[[START_FILE_ARG_0_PTR]]
36 ; GCDA-NEXT: %[[START_FILE_ARG_1_PTR:.*]] = getelementptr inbounds {{.*}}, {{.*}}* %[[START_FILE_ARGS]], i32 0, i32 1
37 ; GCDA-NEXT: %[[START_FILE_ARG_1:.*]] = load i8*, i8** %[[START_FILE_ARG_1_PTR]]
38 ; GCDA-NEXT: %[[START_FILE_ARG_2_PTR:.*]] = getelementptr inbounds {{.*}}, {{.*}}* %[[START_FILE_ARGS]], i32 0, i32 2
39 ; GCDA-NEXT: %[[START_FILE_ARG_2:.*]] = load i32, i32* %[[START_FILE_ARG_2_PTR]]
40 ; GCDA-NEXT: call void @llvm_gcda_start_file(i8* %[[START_FILE_ARG_0]], i8* %[[START_FILE_ARG_1]], i32 %[[START_FILE_ARG_2]])
41 ; GCDA-NEXT: %[[NUM_COUNTERS_PTR:.*]] = getelementptr inbounds {{.*}}, {{.*}}* %[[FILE_INFO]], i32 0, i32 1
42 ; GCDA-NEXT: %[[NUM_COUNTERS:.*]] = load i32, i32* %[[NUM_COUNTERS_PTR]]
43 ; GCDA-NEXT: %[[EMIT_FUN_ARGS_ARRAY_PTR:.*]] = getelementptr inbounds {{.*}}, {{.*}}* %[[FILE_INFO]], i32 0, i32 2
44 ; GCDA-NEXT: %[[EMIT_FUN_ARGS_ARRAY:.*]] = load {{.*}}*, {{.*}}** %[[EMIT_FUN_ARGS_ARRAY_PTR]]
45 ; GCDA-NEXT: %[[EMIT_ARCS_ARGS_ARRAY_PTR:.*]] = getelementptr inbounds {{.*}}, {{.*}}* %[[FILE_INFO]], i32 0, i32 3
46 ; GCDA-NEXT: %[[EMIT_ARCS_ARGS_ARRAY:.*]] = load {{.*}}*, {{.*}}** %[[EMIT_ARCS_ARGS_ARRAY_PTR]]
47 ; GCDA-NEXT: %[[ENTER_COUNTER_LOOP_COND:.*]] = icmp slt i32 0, %[[NUM_COUNTERS]]
48 ; GCDA-NEXT: br i1 %[[ENTER_COUNTER_LOOP_COND]], label %[[COUNTER_LOOP:.*]], label %[[FILE_LOOP_LATCH]]
50 ; GCDA: [[COUNTER_LOOP]]:
51 ; GCDA-NEXT: %[[JV:.*]] = phi i32 [ 0, %[[FILE_LOOP_HEADER]] ], [ %[[NEXT_JV:.*]], %[[COUNTER_LOOP]] ]
52 ; GCDA-NEXT: %[[EMIT_FUN_ARGS:.*]] = getelementptr inbounds {{.*}}, {{.*}}* %[[EMIT_FUN_ARGS_ARRAY]], i32 %[[JV]]
53 ; GCDA-NEXT: %[[EMIT_FUN_ARG_0_PTR:.*]] = getelementptr inbounds {{.*}}, {{.*}}* %[[EMIT_FUN_ARGS]], i32 0, i32 0
54 ; GCDA-NEXT: %[[EMIT_FUN_ARG_0:.*]] = load i32, i32* %[[EMIT_FUN_ARG_0_PTR]]
55 ; GCDA-NEXT: %[[EMIT_FUN_ARG_1_PTR:.*]] = getelementptr inbounds {{.*}}, {{.*}}* %[[EMIT_FUN_ARGS]], i32 0, i32 1
56 ; GCDA-NEXT: %[[EMIT_FUN_ARG_1:.*]] = load i8*, i8** %[[EMIT_FUN_ARG_1_PTR]]
57 ; GCDA-NEXT: %[[EMIT_FUN_ARG_2_PTR:.*]] = getelementptr inbounds {{.*}}, {{.*}}* %[[EMIT_FUN_ARGS]], i32 0, i32 2
58 ; GCDA-NEXT: %[[EMIT_FUN_ARG_2:.*]] = load i32, i32* %[[EMIT_FUN_ARG_2_PTR]]
59 ; GCDA-NEXT: %[[EMIT_FUN_ARG_3_PTR:.*]] = getelementptr inbounds {{.*}}, {{.*}}* %[[EMIT_FUN_ARGS]], i32 0, i32 3
60 ; GCDA-NEXT: %[[EMIT_FUN_ARG_3:.*]] = load i8, i8* %[[EMIT_FUN_ARG_3_PTR]]
61 ; GCDA-NEXT: %[[EMIT_FUN_ARG_4_PTR:.*]] = getelementptr inbounds {{.*}}, {{.*}}* %[[EMIT_FUN_ARGS]], i32 0, i32 4
62 ; GCDA-NEXT: %[[EMIT_FUN_ARG_4:.*]] = load i32, i32* %[[EMIT_FUN_ARG_4_PTR]]
63 ; GCDA-NEXT: call void @llvm_gcda_emit_function(i32 %[[EMIT_FUN_ARG_0]],
64 ; GCDA-SAME: i8* %[[EMIT_FUN_ARG_1]],
65 ; GCDA-SAME: i32 %[[EMIT_FUN_ARG_2]],
66 ; GCDA-SAME: i8 %[[EMIT_FUN_ARG_3]],
67 ; GCDA-SAME: i32 %[[EMIT_FUN_ARG_4]])
68 ; GCDA-NEXT: %[[EMIT_ARCS_ARGS:.*]] = getelementptr inbounds {{.*}}, {{.*}}* %[[EMIT_ARCS_ARGS_ARRAY]], i32 %[[JV]]
69 ; GCDA-NEXT: %[[EMIT_ARCS_ARG_0_PTR:.*]] = getelementptr inbounds {{.*}}, {{.*}}* %[[EMIT_ARCS_ARGS]], i32 0, i32 0
70 ; GCDA-NEXT: %[[EMIT_ARCS_ARG_0:.*]] = load i32, i32* %[[EMIT_ARCS_ARG_0_PTR]]
71 ; GCDA-NEXT: %[[EMIT_ARCS_ARG_1_PTR:.*]] = getelementptr inbounds {{.*}}, {{.*}}* %[[EMIT_ARCS_ARGS]], i32 0, i32 1
72 ; GCDA-NEXT: %[[EMIT_ARCS_ARG_1:.*]] = load i64*, i64** %[[EMIT_ARCS_ARG_1_PTR]]
73 ; GCDA-NEXT: call void @llvm_gcda_emit_arcs(i32 %[[EMIT_ARCS_ARG_0]],
74 ; GCDA-SAME: i64* %[[EMIT_ARCS_ARG_1]])
75 ; GCDA-NEXT: %[[NEXT_JV]] = add i32 %[[JV]], 1
76 ; GCDA-NEXT: %[[COUNTER_LOOP_COND:.*]] = icmp slt i32 %[[NEXT_JV]], %[[NUM_COUNTERS]]
77 ; GCDA-NEXT: br i1 %[[COUNTER_LOOP_COND]], label %[[COUNTER_LOOP]], label %[[FILE_LOOP_LATCH]]
79 ; GCDA: [[FILE_LOOP_LATCH]]:
80 ; GCDA-NEXT: call void @llvm_gcda_summary_info()
81 ; GCDA-NEXT: call void @llvm_gcda_end_file()
82 ; GCDA-NEXT: %[[NEXT_IV]] = add i32 %[[IV]], 1
83 ; GCDA-NEXT: %[[FILE_LOOP_COND:.*]] = icmp slt i32 %[[NEXT_IV]], 1
84 ; GCDA-NEXT: br i1 %[[FILE_LOOP_COND]], label %[[FILE_LOOP_HEADER]], label %[[EXIT:.*]]
90 ; GCNO-NOT: == bar ({{[0-9]+}}) @
93 define void @foo() !dbg !4 {
97 define void @bar() !dbg !7 {
98 ; This function is referenced by the debug info, but no lines have locations.
102 define void @baz() !dbg !8 {
108 !llvm.module.flags = !{!9, !10}
111 !0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.6.0 ", isOptimized: false, emissionKind: LineTablesOnly, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
112 !1 = !DIFile(filename: ".../llvm/test/Transforms/GCOVProfiling/function-numbering.ll", directory: "")
114 !4 = distinct !DISubprogram(name: "foo", line: 1, isLocal: false, isDefinition: true, isOptimized: false, unit: !0, scopeLine: 1, file: !1, scope: !5, type: !6, retainedNodes: !2)
115 !5 = !DIFile(filename: ".../llvm/test/Transforms/GCOVProfiling/function-numbering.ll", directory: "")
116 !6 = !DISubroutineType(types: !2)
117 !7 = distinct !DISubprogram(name: "bar", line: 2, isLocal: false, isDefinition: true, isOptimized: false, unit: !0, scopeLine: 2, file: !1, scope: !5, type: !6, retainedNodes: !2)
118 !8 = distinct !DISubprogram(name: "baz", line: 3, isLocal: false, isDefinition: true, isOptimized: false, unit: !0, scopeLine: 3, file: !1, scope: !5, type: !6, retainedNodes: !2)
119 !9 = !{i32 2, !"Dwarf Version", i32 2}
120 !10 = !{i32 2, !"Debug Info Version", i32 3}
121 !11 = !{!"clang version 3.6.0 "}
122 !12 = !DILocation(line: 1, column: 13, scope: !4)
123 !13 = !DILocation(line: 3, column: 13, scope: !8)