1*9880d681SAndroid Build Coastguard Worker; RUN: opt < %s -instcombine -sample-profile -sample-profile-file=%S/Inputs/cov-zero-samples.prof -sample-profile-check-record-coverage=100 -pass-remarks=sample-profile -o /dev/null 2>&1 | FileCheck %s 2*9880d681SAndroid Build Coastguard Worker; RUN: opt < %s -passes="function(instcombine),sample-profile" -sample-profile-file=%S/Inputs/cov-zero-samples.prof -sample-profile-check-record-coverage=100 -pass-remarks=sample-profile -o /dev/null 2>&1 | FileCheck %s 3*9880d681SAndroid Build Coastguard Worker; 4*9880d681SAndroid Build Coastguard Worker; CHECK: remark: cov-zero-samples.cc:9:29: Applied 404065 samples from profile (offset: 2.1) 5*9880d681SAndroid Build Coastguard Worker; CHECK: remark: cov-zero-samples.cc:10:9: Applied 443089 samples from profile (offset: 3) 6*9880d681SAndroid Build Coastguard Worker; CHECK: remark: cov-zero-samples.cc:10:36: Applied 0 samples from profile (offset: 3.1) 7*9880d681SAndroid Build Coastguard Worker; CHECK: remark: cov-zero-samples.cc:11:12: Applied 404066 samples from profile (offset: 4) 8*9880d681SAndroid Build Coastguard Worker; CHECK: remark: cov-zero-samples.cc:13:25: Applied 0 samples from profile (offset: 6) 9*9880d681SAndroid Build Coastguard Worker; CHECK: remark: cov-zero-samples.cc:14:3: Applied 0 samples from profile (offset: 7) 10*9880d681SAndroid Build Coastguard Worker; CHECK: remark: cov-zero-samples.cc:10:9: most popular destination for conditional branches at cov-zero-samples.cc:9:3 11*9880d681SAndroid Build Coastguard Worker; CHECK: remark: cov-zero-samples.cc:11:12: most popular destination for conditional branches at cov-zero-samples.cc:10:9 12*9880d681SAndroid Build Coastguard Worker; 13*9880d681SAndroid Build Coastguard Worker; Coverage for this profile should be 100% 14*9880d681SAndroid Build Coastguard Worker; CHECK-NOT: warning: cov-zero-samples.cc:1: 15*9880d681SAndroid Build Coastguard Worker 16*9880d681SAndroid Build Coastguard Worker@N = global i64 8000000000, align 8 17*9880d681SAndroid Build Coastguard Worker@.str = private unnamed_addr constant [11 x i8] c"sum is %d\0A\00", align 1 18*9880d681SAndroid Build Coastguard Worker 19*9880d681SAndroid Build Coastguard Worker; Function Attrs: nounwind uwtable 20*9880d681SAndroid Build Coastguard Workerdefine i32 @_Z12never_calledi(i32 %i) !dbg !4 { 21*9880d681SAndroid Build Coastguard Workerentry: 22*9880d681SAndroid Build Coastguard Worker ret i32 0, !dbg !32 23*9880d681SAndroid Build Coastguard Worker} 24*9880d681SAndroid Build Coastguard Worker 25*9880d681SAndroid Build Coastguard Worker; Function Attrs: nounwind readnone 26*9880d681SAndroid Build Coastguard Workerdeclare void @llvm.dbg.declare(metadata, metadata, metadata) 27*9880d681SAndroid Build Coastguard Worker 28*9880d681SAndroid Build Coastguard Worker; Function Attrs: norecurse uwtable 29*9880d681SAndroid Build Coastguard Workerdefine i32 @main() !dbg !8 { 30*9880d681SAndroid Build Coastguard Workerentry: 31*9880d681SAndroid Build Coastguard Worker %retval = alloca i32, align 4 32*9880d681SAndroid Build Coastguard Worker %sum = alloca i32, align 4 33*9880d681SAndroid Build Coastguard Worker %i = alloca i64, align 8 34*9880d681SAndroid Build Coastguard Worker store i32 0, i32* %retval, align 4 35*9880d681SAndroid Build Coastguard Worker call void @llvm.dbg.declare(metadata i32* %sum, metadata !33, metadata !19), !dbg !34 36*9880d681SAndroid Build Coastguard Worker store i32 0, i32* %sum, align 4, !dbg !34 37*9880d681SAndroid Build Coastguard Worker call void @llvm.dbg.declare(metadata i64* %i, metadata !35, metadata !19), !dbg !37 38*9880d681SAndroid Build Coastguard Worker store i64 0, i64* %i, align 8, !dbg !37 39*9880d681SAndroid Build Coastguard Worker br label %for.cond, !dbg !38 40*9880d681SAndroid Build Coastguard Worker 41*9880d681SAndroid Build Coastguard Workerfor.cond: ; preds = %for.inc, %entry 42*9880d681SAndroid Build Coastguard Worker %0 = load i64, i64* %i, align 8, !dbg !39 43*9880d681SAndroid Build Coastguard Worker %1 = load volatile i64, i64* @N, align 8, !dbg !42 44*9880d681SAndroid Build Coastguard Worker %cmp = icmp slt i64 %0, %1, !dbg !43 45*9880d681SAndroid Build Coastguard Worker br i1 %cmp, label %for.body, label %for.end, !dbg !44 46*9880d681SAndroid Build Coastguard Worker 47*9880d681SAndroid Build Coastguard Workerfor.body: ; preds = %for.cond 48*9880d681SAndroid Build Coastguard Worker %2 = load i64, i64* %i, align 8, !dbg !45 49*9880d681SAndroid Build Coastguard Worker %3 = load volatile i64, i64* @N, align 8, !dbg !48 50*9880d681SAndroid Build Coastguard Worker %cmp1 = icmp sgt i64 %2, %3, !dbg !49 51*9880d681SAndroid Build Coastguard Worker br i1 %cmp1, label %if.then, label %if.end, !dbg !50 52*9880d681SAndroid Build Coastguard Worker 53*9880d681SAndroid Build Coastguard Workerif.then: ; preds = %for.body 54*9880d681SAndroid Build Coastguard Worker %4 = load i64, i64* %i, align 8, !dbg !51 55*9880d681SAndroid Build Coastguard Worker %conv = trunc i64 %4 to i32, !dbg !51 56*9880d681SAndroid Build Coastguard Worker %call = call i32 @_Z12never_calledi(i32 %conv), !dbg !53 57*9880d681SAndroid Build Coastguard Worker %5 = load i32, i32* %sum, align 4, !dbg !54 58*9880d681SAndroid Build Coastguard Worker %add = add nsw i32 %5, %call, !dbg !54 59*9880d681SAndroid Build Coastguard Worker store i32 %add, i32* %sum, align 4, !dbg !54 60*9880d681SAndroid Build Coastguard Worker br label %if.end, !dbg !55 61*9880d681SAndroid Build Coastguard Worker 62*9880d681SAndroid Build Coastguard Workerif.end: ; preds = %if.then, %for.body 63*9880d681SAndroid Build Coastguard Worker %6 = load i64, i64* %i, align 8, !dbg !56 64*9880d681SAndroid Build Coastguard Worker %div = sdiv i64 %6, 239, !dbg !57 65*9880d681SAndroid Build Coastguard Worker %7 = load i32, i32* %sum, align 4, !dbg !58 66*9880d681SAndroid Build Coastguard Worker %conv2 = sext i32 %7 to i64, !dbg !58 67*9880d681SAndroid Build Coastguard Worker %mul = mul nsw i64 %conv2, %div, !dbg !58 68*9880d681SAndroid Build Coastguard Worker %conv3 = trunc i64 %mul to i32, !dbg !58 69*9880d681SAndroid Build Coastguard Worker store i32 %conv3, i32* %sum, align 4, !dbg !58 70*9880d681SAndroid Build Coastguard Worker br label %for.inc, !dbg !59 71*9880d681SAndroid Build Coastguard Worker 72*9880d681SAndroid Build Coastguard Workerfor.inc: ; preds = %if.end 73*9880d681SAndroid Build Coastguard Worker %8 = load i64, i64* %i, align 8, !dbg !60 74*9880d681SAndroid Build Coastguard Worker %inc = add nsw i64 %8, 1, !dbg !60 75*9880d681SAndroid Build Coastguard Worker store i64 %inc, i64* %i, align 8, !dbg !60 76*9880d681SAndroid Build Coastguard Worker br label %for.cond, !dbg !62 77*9880d681SAndroid Build Coastguard Worker 78*9880d681SAndroid Build Coastguard Workerfor.end: ; preds = %for.cond 79*9880d681SAndroid Build Coastguard Worker %9 = load i32, i32* %sum, align 4, !dbg !63 80*9880d681SAndroid Build Coastguard Worker %call4 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str, i32 0, i32 0), i32 %9), !dbg !64 81*9880d681SAndroid Build Coastguard Worker ret i32 0, !dbg !65 82*9880d681SAndroid Build Coastguard Worker} 83*9880d681SAndroid Build Coastguard Worker 84*9880d681SAndroid Build Coastguard Workerdeclare i32 @printf(i8*, ...) 85*9880d681SAndroid Build Coastguard Worker 86*9880d681SAndroid Build Coastguard Worker!llvm.dbg.cu = !{!0} 87*9880d681SAndroid Build Coastguard Worker!llvm.module.flags = !{!15, !16} 88*9880d681SAndroid Build Coastguard Worker!llvm.ident = !{!17} 89*9880d681SAndroid Build Coastguard Worker 90*9880d681SAndroid Build Coastguard Worker!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 3.8.0 (trunk 253667) (llvm/trunk 253670)", isOptimized: false, runtimeVersion: 0, emissionKind: NoDebug, enums: !2, globals: !11) 91*9880d681SAndroid Build Coastguard Worker!1 = !DIFile(filename: "cov-zero-samples.cc", directory: ".") 92*9880d681SAndroid Build Coastguard Worker!2 = !{} 93*9880d681SAndroid Build Coastguard Worker!4 = distinct !DISubprogram(name: "never_called", linkageName: "_Z12never_calledi", scope: !1, file: !1, line: 5, type: !5, isLocal: false, isDefinition: true, scopeLine: 5, flags: DIFlagPrototyped, isOptimized: false, unit: !0, variables: !2) 94*9880d681SAndroid Build Coastguard Worker!5 = !DISubroutineType(types: !6) 95*9880d681SAndroid Build Coastguard Worker!6 = !{!7, !7} 96*9880d681SAndroid Build Coastguard Worker!7 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 97*9880d681SAndroid Build Coastguard Worker!8 = distinct !DISubprogram(name: "main", scope: !1, file: !1, line: 7, type: !9, isLocal: false, isDefinition: true, scopeLine: 7, flags: DIFlagPrototyped, isOptimized: false, unit: !0, variables: !2) 98*9880d681SAndroid Build Coastguard Worker!9 = !DISubroutineType(types: !10) 99*9880d681SAndroid Build Coastguard Worker!10 = !{!7} 100*9880d681SAndroid Build Coastguard Worker!11 = !{!12} 101*9880d681SAndroid Build Coastguard Worker!12 = !DIGlobalVariable(name: "N", scope: !0, file: !1, line: 3, type: !13, isLocal: false, isDefinition: true, variable: i64* @N) 102*9880d681SAndroid Build Coastguard Worker!13 = !DIDerivedType(tag: DW_TAG_volatile_type, baseType: !14) 103*9880d681SAndroid Build Coastguard Worker!14 = !DIBasicType(name: "long long int", size: 64, align: 64, encoding: DW_ATE_signed) 104*9880d681SAndroid Build Coastguard Worker!15 = !{i32 2, !"Dwarf Version", i32 4} 105*9880d681SAndroid Build Coastguard Worker!16 = !{i32 2, !"Debug Info Version", i32 3} 106*9880d681SAndroid Build Coastguard Worker!17 = !{!"clang version 3.8.0 (trunk 253667) (llvm/trunk 253670)"} 107*9880d681SAndroid Build Coastguard Worker!19 = !DIExpression() 108*9880d681SAndroid Build Coastguard Worker!31 = !DILexicalBlockFile(scope: !4, file: !1, discriminator: 3) 109*9880d681SAndroid Build Coastguard Worker!32 = !DILocation(line: 5, column: 27, scope: !31) 110*9880d681SAndroid Build Coastguard Worker!33 = !DILocalVariable(name: "sum", scope: !8, file: !1, line: 8, type: !7) 111*9880d681SAndroid Build Coastguard Worker!34 = !DILocation(line: 8, column: 7, scope: !8) 112*9880d681SAndroid Build Coastguard Worker!35 = !DILocalVariable(name: "i", scope: !36, file: !1, line: 9, type: !14) 113*9880d681SAndroid Build Coastguard Worker!36 = distinct !DILexicalBlock(scope: !8, file: !1, line: 9, column: 3) 114*9880d681SAndroid Build Coastguard Worker!37 = !DILocation(line: 9, column: 18, scope: !36) 115*9880d681SAndroid Build Coastguard Worker!38 = !DILocation(line: 9, column: 8, scope: !36) 116*9880d681SAndroid Build Coastguard Worker!39 = !DILocation(line: 9, column: 25, scope: !40) 117*9880d681SAndroid Build Coastguard Worker!40 = !DILexicalBlockFile(scope: !41, file: !1, discriminator: 1) 118*9880d681SAndroid Build Coastguard Worker!41 = distinct !DILexicalBlock(scope: !36, file: !1, line: 9, column: 3) 119*9880d681SAndroid Build Coastguard Worker!42 = !DILocation(line: 9, column: 29, scope: !40) 120*9880d681SAndroid Build Coastguard Worker!43 = !DILocation(line: 9, column: 27, scope: !40) 121*9880d681SAndroid Build Coastguard Worker!44 = !DILocation(line: 9, column: 3, scope: !40) 122*9880d681SAndroid Build Coastguard Worker!45 = !DILocation(line: 10, column: 9, scope: !46) 123*9880d681SAndroid Build Coastguard Worker!46 = distinct !DILexicalBlock(scope: !47, file: !1, line: 10, column: 9) 124*9880d681SAndroid Build Coastguard Worker!47 = distinct !DILexicalBlock(scope: !41, file: !1, line: 9, column: 37) 125*9880d681SAndroid Build Coastguard Worker!48 = !DILocation(line: 10, column: 13, scope: !46) 126*9880d681SAndroid Build Coastguard Worker!49 = !DILocation(line: 10, column: 11, scope: !46) 127*9880d681SAndroid Build Coastguard Worker!50 = !DILocation(line: 10, column: 9, scope: !47) 128*9880d681SAndroid Build Coastguard Worker!51 = !DILocation(line: 10, column: 36, scope: !52) 129*9880d681SAndroid Build Coastguard Worker!52 = !DILexicalBlockFile(scope: !46, file: !1, discriminator: 1) 130*9880d681SAndroid Build Coastguard Worker!53 = !DILocation(line: 10, column: 23, scope: !52) 131*9880d681SAndroid Build Coastguard Worker!54 = !DILocation(line: 10, column: 20, scope: !52) 132*9880d681SAndroid Build Coastguard Worker!55 = !DILocation(line: 10, column: 16, scope: !52) 133*9880d681SAndroid Build Coastguard Worker!56 = !DILocation(line: 11, column: 12, scope: !47) 134*9880d681SAndroid Build Coastguard Worker!57 = !DILocation(line: 11, column: 14, scope: !47) 135*9880d681SAndroid Build Coastguard Worker!58 = !DILocation(line: 11, column: 9, scope: !47) 136*9880d681SAndroid Build Coastguard Worker!59 = !DILocation(line: 12, column: 3, scope: !47) 137*9880d681SAndroid Build Coastguard Worker!60 = !DILocation(line: 9, column: 33, scope: !61) 138*9880d681SAndroid Build Coastguard Worker!61 = !DILexicalBlockFile(scope: !41, file: !1, discriminator: 2) 139*9880d681SAndroid Build Coastguard Worker!62 = !DILocation(line: 9, column: 3, scope: !61) 140*9880d681SAndroid Build Coastguard Worker!63 = !DILocation(line: 13, column: 25, scope: !8) 141*9880d681SAndroid Build Coastguard Worker!64 = !DILocation(line: 13, column: 3, scope: !8) 142*9880d681SAndroid Build Coastguard Worker!65 = !DILocation(line: 14, column: 3, scope: !8) 143