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1; Test that GCOV instrumentation numbers functions correctly when some2; functions aren't emitted.3 4; Inject metadata to set the .gcno file location5; RUN: rm -rf %t && mkdir -p %t6; RUN: echo '!14 = !{!"%/t/function-numbering.ll", !0}' > %t/17; RUN: cat %s %t/1 > %t/28 9; RUN: opt -passes=insert-gcov-profiling -S < %t/2 | FileCheck --check-prefix GCDA %s10; RUN: llvm-cov gcov -n -dump %t/function-numbering.gcno 2>&1 | FileCheck --check-prefix GCNO %s11; RUN: opt -passes=insert-gcov-profiling -S < %t/2 -mtriple=s390x-unknown-linux | FileCheck --check-prefix EXT %s12; RUN: opt -passes=insert-gcov-profiling -S < %t/2 -mtriple=mips-linux-gnu | FileCheck --check-prefix MIPS_EXT %s13; REQUIRES: x86-registered-target, systemz-registered-target, mips-registered-target14 15target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"16target triple = "x86_64-apple-macosx10.10.0"17 18; GCDA: @__llvm_internal_gcov_emit_function_args.0 = internal unnamed_addr constant19; GCDA-SAME: { i32 0,20; GCDA-SAME: { i32 1,21;22; GCDA-LABEL: define internal void @__llvm_gcov_writeout() unnamed_addr #[[#ATTR:]] {23; GCDA-NEXT: entry:24; GCDA-NEXT: br label %[[FILE_LOOP_HEADER:.*]]25;26; GCDA: [[FILE_LOOP_HEADER]]:27; GCDA-NEXT: %[[IV:.*]] = phi i32 [ 0, %entry ], [ %[[NEXT_IV:.*]], %[[FILE_LOOP_LATCH:.*]] ]28; GCDA-NEXT: %[[FILE_INFO:.*]] = getelementptr inbounds {{.*}}, ptr @__llvm_internal_gcov_emit_file_info, i32 0, i32 %[[IV]]29; GCDA-NEXT: %[[START_FILE_ARGS:.*]] = getelementptr inbounds {{.*}}, ptr %[[FILE_INFO]], i32 0, i32 030; GCDA-NEXT: %[[START_FILE_ARG_0_PTR:.*]] = getelementptr inbounds {{.*}}, ptr %[[START_FILE_ARGS]], i32 0, i32 031; GCDA-NEXT: %[[START_FILE_ARG_0:.*]] = load ptr, ptr %[[START_FILE_ARG_0_PTR]]32; GCDA-NEXT: %[[START_FILE_ARG_1_PTR:.*]] = getelementptr inbounds {{.*}}, ptr %[[START_FILE_ARGS]], i32 0, i32 133; GCDA-NEXT: %[[START_FILE_ARG_1:.*]] = load i32, ptr %[[START_FILE_ARG_1_PTR]]34; GCDA-NEXT: %[[START_FILE_ARG_2_PTR:.*]] = getelementptr inbounds {{.*}}, ptr %[[START_FILE_ARGS]], i32 0, i32 235; GCDA-NEXT: %[[START_FILE_ARG_2:.*]] = load i32, ptr %[[START_FILE_ARG_2_PTR]]36; GCDA-NEXT: call void @llvm_gcda_start_file(ptr %[[START_FILE_ARG_0]], i32 %[[START_FILE_ARG_1]], i32 %[[START_FILE_ARG_2]])37; GCDA-NEXT: %[[NUM_COUNTERS_PTR:.*]] = getelementptr inbounds {{.*}}, ptr %[[FILE_INFO]], i32 0, i32 138; GCDA-NEXT: %[[NUM_COUNTERS:.*]] = load i32, ptr %[[NUM_COUNTERS_PTR]]39; GCDA-NEXT: %[[EMIT_FUN_ARGS_ARRAY_PTR:.*]] = getelementptr inbounds {{.*}}, ptr %[[FILE_INFO]], i32 0, i32 240; GCDA-NEXT: %[[EMIT_FUN_ARGS_ARRAY:.*]] = load ptr, ptr %[[EMIT_FUN_ARGS_ARRAY_PTR]]41; GCDA-NEXT: %[[EMIT_ARCS_ARGS_ARRAY_PTR:.*]] = getelementptr inbounds {{.*}}, ptr %[[FILE_INFO]], i32 0, i32 342; GCDA-NEXT: %[[EMIT_ARCS_ARGS_ARRAY:.*]] = load ptr, ptr %[[EMIT_ARCS_ARGS_ARRAY_PTR]]43; GCDA-NEXT: %[[ENTER_COUNTER_LOOP_COND:.*]] = icmp slt i32 0, %[[NUM_COUNTERS]]44; GCDA-NEXT: br i1 %[[ENTER_COUNTER_LOOP_COND]], label %[[COUNTER_LOOP:.*]], label %[[FILE_LOOP_LATCH]]45;46; GCDA: [[COUNTER_LOOP]]:47; GCDA-NEXT: %[[JV:.*]] = phi i32 [ 0, %[[FILE_LOOP_HEADER]] ], [ %[[NEXT_JV:.*]], %[[COUNTER_LOOP]] ]48; GCDA-NEXT: %[[EMIT_FUN_ARGS:.*]] = getelementptr inbounds {{.*}}, ptr %[[EMIT_FUN_ARGS_ARRAY]], i32 %[[JV]]49; GCDA-NEXT: %[[EMIT_FUN_ARG_0_PTR:.*]] = getelementptr inbounds {{.*}}, ptr %[[EMIT_FUN_ARGS]], i32 0, i32 050; GCDA-NEXT: %[[EMIT_FUN_ARG_0:.*]] = load i32, ptr %[[EMIT_FUN_ARG_0_PTR]]51; GCDA-NEXT: %[[EMIT_FUN_ARG_1_PTR:.*]] = getelementptr inbounds {{.*}}, ptr %[[EMIT_FUN_ARGS]], i32 0, i32 152; GCDA-NEXT: %[[EMIT_FUN_ARG_1:.*]] = load i32, ptr %[[EMIT_FUN_ARG_1_PTR]]53; GCDA-NEXT: %[[EMIT_FUN_ARG_2_PTR:.*]] = getelementptr inbounds {{.*}}, ptr %[[EMIT_FUN_ARGS]], i32 0, i32 254; GCDA-NEXT: %[[EMIT_FUN_ARG_2:.*]] = load i32, ptr %[[EMIT_FUN_ARG_2_PTR]]55; GCDA-NEXT: call void @llvm_gcda_emit_function(i32 %[[EMIT_FUN_ARG_0]],56; GCDA-SAME: i32 %[[EMIT_FUN_ARG_1]],57; GCDA-SAME: i32 %[[EMIT_FUN_ARG_2]])58; GCDA-NEXT: %[[EMIT_ARCS_ARGS:.*]] = getelementptr inbounds {{.*}}, ptr %[[EMIT_ARCS_ARGS_ARRAY]], i32 %[[JV]]59; GCDA-NEXT: %[[EMIT_ARCS_ARG_0_PTR:.*]] = getelementptr inbounds {{.*}}, ptr %[[EMIT_ARCS_ARGS]], i32 0, i32 060; GCDA-NEXT: %[[EMIT_ARCS_ARG_0:.*]] = load i32, ptr %[[EMIT_ARCS_ARG_0_PTR]]61; GCDA-NEXT: %[[EMIT_ARCS_ARG_1_PTR:.*]] = getelementptr inbounds {{.*}}, ptr %[[EMIT_ARCS_ARGS]], i32 0, i32 162; GCDA-NEXT: %[[EMIT_ARCS_ARG_1:.*]] = load ptr, ptr %[[EMIT_ARCS_ARG_1_PTR]]63; GCDA-NEXT: call void @llvm_gcda_emit_arcs(i32 %[[EMIT_ARCS_ARG_0]],64; GCDA-SAME: ptr %[[EMIT_ARCS_ARG_1]])65; GCDA-NEXT: %[[NEXT_JV]] = add i32 %[[JV]], 166; GCDA-NEXT: %[[COUNTER_LOOP_COND:.*]] = icmp slt i32 %[[NEXT_JV]], %[[NUM_COUNTERS]]67; GCDA-NEXT: br i1 %[[COUNTER_LOOP_COND]], label %[[COUNTER_LOOP]], label %[[FILE_LOOP_LATCH]]68;69; GCDA: [[FILE_LOOP_LATCH]]:70; GCDA-NEXT: call void @llvm_gcda_summary_info()71; GCDA-NEXT: call void @llvm_gcda_end_file()72; GCDA-NEXT: %[[NEXT_IV]] = add i32 %[[IV]], 173; GCDA-NEXT: %[[FILE_LOOP_COND:.*]] = icmp slt i32 %[[NEXT_IV]], 174; GCDA-NEXT: br i1 %[[FILE_LOOP_COND]], label %[[FILE_LOOP_HEADER]], label %[[EXIT:.*]]75;76; GCDA: [[EXIT]]:77; GCDA-NEXT: ret void78 79; GCNO: == foo (0) @80; GCNO-NOT: == bar ({{[0-9]+}}) @81; GCNO: == baz (1) @82 83; GCDA: declare void @llvm_gcda_start_file(ptr, i32, i32)84; EXT: declare void @llvm_gcda_start_file(ptr, i32 zeroext, i32 zeroext)85; MIPS_EXT: declare void @llvm_gcda_start_file(ptr, i32 signext, i32 signext)86 87; GCDA: declare void @llvm_gcda_emit_function(i32, i32, i32)88; EXT: declare void @llvm_gcda_emit_function(i32 zeroext, i32 zeroext, i32 zeroext)89; MIPS_EXT: declare void @llvm_gcda_emit_function(i32 signext, i32 signext, i32 signext)90 91; GCDA: declare void @llvm_gcda_emit_arcs(i32, ptr)92; EXT: declare void @llvm_gcda_emit_arcs(i32 zeroext, ptr)93; MIPS_EXT: declare void @llvm_gcda_emit_arcs(i32 signext, ptr)94 95define void @foo() !dbg !4 {96 ret void, !dbg !1297}98 99define void @bar() !dbg !7 {100 ; This function is referenced by the debug info, but no lines have locations.101 ret void102}103 104define void @baz() !dbg !8 {105 ret void, !dbg !13106}107 108; GCDA: attributes #[[#ATTR]] = { noinline nounwind }109 110!llvm.gcov = !{!14}111!llvm.dbg.cu = !{!0}112!llvm.module.flags = !{!9, !10}113!llvm.ident = !{!11}114 115!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)116!1 = !DIFile(filename: ".../llvm/test/Transforms/GCOVProfiling/function-numbering.ll", directory: "")117!2 = !{}118!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)119!5 = !DIFile(filename: ".../llvm/test/Transforms/GCOVProfiling/function-numbering.ll", directory: "")120!6 = !DISubroutineType(types: !2)121!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)122!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)123!9 = !{i32 2, !"Dwarf Version", i32 2}124!10 = !{i32 2, !"Debug Info Version", i32 3}125!11 = !{!"clang version 3.6.0 "}126!12 = !DILocation(line: 1, column: 13, scope: !4)127!13 = !DILocation(line: 3, column: 13, scope: !8)128