; RUN: opt < %s -sample-profile -sample-profile-file=%S/Inputs/inline-coverage.prof -sample-profile-check-record-coverage=100 -sample-profile-check-sample-coverage=110 -pass-remarks=sample-profile -o /dev/null 2>&1 | FileCheck %s ; ; Original code: ; ; 1 #include ; 2 ; 3 long long int foo(long i) { ; 4 return rand() * i; ; 5 } ; 6 ; 7 int main() { ; 8 long long int sum = 0; ; 9 for (int i = 0; i < 200000 * 3000; i++) ; 10 sum += foo(i); ; 11 return sum > 0 ? 0 : 1; ; 12 } ; ; CHECK: remark: coverage.cc:10:12: inlined hot callee '_Z3fool' with 172746 samples into 'main' ; CHECK: remark: coverage.cc:9:19: Applied 23478 samples from profile (offset: 2.1) ; CHECK: remark: coverage.cc:10:16: Applied 23478 samples from profile (offset: 3) ; CHECK: remark: coverage.cc:4:10: Applied 31878 samples from profile (offset: 1) ; CHECK: remark: coverage.cc:11:10: Applied 0 samples from profile (offset: 4) ; CHECK: remark: coverage.cc:10:16: most popular destination for conditional branches at coverage.cc:9:3 ; ; There is one sample record with 0 samples at offset 4 in main() that we never ; use: ; CHECK: warning: coverage.cc:7: 4 of 5 available profile records (80%) were applied ; ; Since the unused sample record contributes no samples, sample coverage should ; be 100%. Note that we get this warning because we are requesting an impossible ; 110% coverage check. ; CHECK: warning: coverage.cc:7: 78834 of 78834 available profile samples (100%) were applied define i64 @_Z3fool(i64 %i) !dbg !4 { entry: %i.addr = alloca i64, align 8 store i64 %i, i64* %i.addr, align 8 call void @llvm.dbg.declare(metadata i64* %i.addr, metadata !16, metadata !17), !dbg !18 %call = call i32 @rand(), !dbg !19 %conv = sext i32 %call to i64, !dbg !19 %0 = load i64, i64* %i.addr, align 8, !dbg !20 %mul = mul nsw i64 %conv, %0, !dbg !21 ret i64 %mul, !dbg !22 } declare void @llvm.dbg.declare(metadata, metadata, metadata) declare i32 @rand() define i32 @main() !dbg !9 { entry: %retval = alloca i32, align 4 %sum = alloca i64, align 8 %i = alloca i32, align 4 store i32 0, i32* %retval, align 4 call void @llvm.dbg.declare(metadata i64* %sum, metadata !23, metadata !17), !dbg !24 store i64 0, i64* %sum, align 8, !dbg !24 call void @llvm.dbg.declare(metadata i32* %i, metadata !25, metadata !17), !dbg !27 store i32 0, i32* %i, align 4, !dbg !27 br label %for.cond, !dbg !28 for.cond: ; preds = %for.inc, %entry %0 = load i32, i32* %i, align 4, !dbg !29 %cmp = icmp slt i32 %0, 600000000, !dbg !32 br i1 %cmp, label %for.body, label %for.end, !dbg !33 for.body: ; preds = %for.cond %1 = load i32, i32* %i, align 4, !dbg !34 %conv = sext i32 %1 to i64, !dbg !34 %call = call i64 @_Z3fool(i64 %conv), !dbg !35 %2 = load i64, i64* %sum, align 8, !dbg !36 %add = add nsw i64 %2, %call, !dbg !36 store i64 %add, i64* %sum, align 8, !dbg !36 br label %for.inc, !dbg !37 for.inc: ; preds = %for.body %3 = load i32, i32* %i, align 4, !dbg !38 %inc = add nsw i32 %3, 1, !dbg !38 store i32 %inc, i32* %i, align 4, !dbg !38 br label %for.cond, !dbg !39 for.end: ; preds = %for.cond %4 = load i64, i64* %sum, align 8, !dbg !40 %cmp1 = icmp sgt i64 %4, 0, !dbg !41 %cond = select i1 %cmp1, i32 0, i32 1, !dbg !40 ret i32 %cond, !dbg !42 } !llvm.dbg.cu = !{!0} !llvm.module.flags = !{!13, !14} !llvm.ident = !{!15} !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 3.8.0 (trunk 251738) (llvm/trunk 251737)", isOptimized: false, runtimeVersion: 0, emissionKind: 1, enums: !2, subprograms: !3) !1 = !DIFile(filename: "coverage.cc", directory: ".") !2 = !{} !3 = !{!4, !9} !4 = distinct !DISubprogram(name: "foo", linkageName: "_Z3fool", scope: !1, file: !1, line: 3, type: !5, isLocal: false, isDefinition: true, scopeLine: 3, flags: DIFlagPrototyped, isOptimized: false, variables: !2) !5 = !DISubroutineType(types: !6) !6 = !{!7, !8} !7 = !DIBasicType(name: "long long int", size: 64, align: 64, encoding: DW_ATE_signed) !8 = !DIBasicType(name: "long int", size: 64, align: 64, encoding: DW_ATE_signed) !9 = distinct !DISubprogram(name: "main", scope: !1, file: !1, line: 7, type: !10, isLocal: false, isDefinition: true, scopeLine: 7, flags: DIFlagPrototyped, isOptimized: false, variables: !2) !10 = !DISubroutineType(types: !11) !11 = !{!12} !12 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed) !13 = !{i32 2, !"Dwarf Version", i32 4} !14 = !{i32 2, !"Debug Info Version", i32 3} !15 = !{!"clang version 3.8.0 (trunk 251738) (llvm/trunk 251737)"} !16 = !DILocalVariable(name: "i", arg: 1, scope: !4, file: !1, line: 3, type: !8) !17 = !DIExpression() !18 = !DILocation(line: 3, column: 24, scope: !4) !19 = !DILocation(line: 4, column: 10, scope: !4) !20 = !DILocation(line: 4, column: 19, scope: !4) !21 = !DILocation(line: 4, column: 17, scope: !4) !22 = !DILocation(line: 4, column: 3, scope: !4) !23 = !DILocalVariable(name: "sum", scope: !9, file: !1, line: 8, type: !7) !24 = !DILocation(line: 8, column: 17, scope: !9) !25 = !DILocalVariable(name: "i", scope: !26, file: !1, line: 9, type: !12) !26 = distinct !DILexicalBlock(scope: !9, file: !1, line: 9, column: 3) !27 = !DILocation(line: 9, column: 12, scope: !26) !28 = !DILocation(line: 9, column: 8, scope: !26) !29 = !DILocation(line: 9, column: 19, scope: !30) !30 = !DILexicalBlockFile(scope: !31, file: !1, discriminator: 1) !31 = distinct !DILexicalBlock(scope: !26, file: !1, line: 9, column: 3) !32 = !DILocation(line: 9, column: 21, scope: !30) !33 = !DILocation(line: 9, column: 3, scope: !30) !34 = !DILocation(line: 10, column: 16, scope: !31) !35 = !DILocation(line: 10, column: 12, scope: !31) !36 = !DILocation(line: 10, column: 9, scope: !31) !37 = !DILocation(line: 10, column: 5, scope: !31) !38 = !DILocation(line: 9, column: 39, scope: !31) !39 = !DILocation(line: 9, column: 3, scope: !31) !40 = !DILocation(line: 11, column: 10, scope: !9) !41 = !DILocation(line: 11, column: 14, scope: !9) !42 = !DILocation(line: 11, column: 3, scope: !9)