| ; 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 -pass-remarks-analysis=sample-profile -o /dev/null 2>&1 | FileCheck %s |
| ; 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 -pass-remarks-analysis=sample-profile -o /dev/null 2>&1 | FileCheck %s |
| ; |
| ; CHECK: remark: cov-zero-samples.cc:9:29: Applied 404065 samples from profile (offset: 2.1) |
| ; CHECK: remark: cov-zero-samples.cc:10:9: Applied 443089 samples from profile (offset: 3) |
| ; CHECK: remark: cov-zero-samples.cc:10:36: Applied 0 samples from profile (offset: 3.1) |
| ; CHECK: remark: cov-zero-samples.cc:11:12: Applied 404066 samples from profile (offset: 4) |
| ; CHECK: remark: cov-zero-samples.cc:13:25: Applied 0 samples from profile (offset: 6) |
| ; CHECK: remark: cov-zero-samples.cc:14:3: Applied 0 samples from profile (offset: 7) |
| ; CHECK: remark: cov-zero-samples.cc:10:9: most popular destination for conditional branches at cov-zero-samples.cc:9:3 |
| ; CHECK: remark: cov-zero-samples.cc:11:12: most popular destination for conditional branches at cov-zero-samples.cc:10:9 |
| ; |
| ; Coverage for this profile should be 100% |
| ; CHECK-NOT: warning: cov-zero-samples.cc:1: |
| |
| source_filename = "test/Transforms/SampleProfile/cov-zero-samples.ll" |
| |
| @N = global i64 8000000000, align 8, !dbg !0 |
| @.str = private unnamed_addr constant [11 x i8] c"sum is %d\0A\00", align 1 |
| |
| define i32 @_Z12never_calledi(i32 %i) #1 !dbg !11 { |
| entry: |
| ret i32 0, !dbg !15 |
| } |
| |
| ; Function Attrs: nounwind readnone |
| declare void @llvm.dbg.declare(metadata, metadata, metadata) #0 |
| |
| define i32 @main() #1 !dbg !17 { |
| entry: |
| %retval = alloca i32, align 4 |
| %sum = alloca i32, align 4 |
| %i = alloca i64, align 8 |
| store i32 0, ptr %retval, align 4 |
| call void @llvm.dbg.declare(metadata ptr %sum, metadata !20, metadata !21), !dbg !22 |
| store i32 0, ptr %sum, align 4, !dbg !22 |
| call void @llvm.dbg.declare(metadata ptr %i, metadata !23, metadata !21), !dbg !25 |
| store i64 0, ptr %i, align 8, !dbg !25 |
| br label %for.cond, !dbg !26 |
| |
| for.cond: ; preds = %for.inc, %entry |
| |
| %0 = load i64, ptr %i, align 8, !dbg !27 |
| %1 = load volatile i64, ptr @N, align 8, !dbg !30 |
| %cmp = icmp slt i64 %0, %1, !dbg !31 |
| br i1 %cmp, label %for.body, label %for.end, !dbg !32 |
| |
| for.body: ; preds = %for.cond |
| %2 = load i64, ptr %i, align 8, !dbg !33 |
| %3 = load volatile i64, ptr @N, align 8, !dbg !36 |
| %cmp1 = icmp sgt i64 %2, %3, !dbg !37 |
| br i1 %cmp1, label %if.then, label %if.end, !dbg !38 |
| |
| if.then: ; preds = %for.body |
| %4 = load i64, ptr %i, align 8, !dbg !39 |
| %conv = trunc i64 %4 to i32, !dbg !39 |
| %call = call i32 @_Z12never_calledi(i32 %conv), !dbg !41 |
| %5 = load i32, ptr %sum, align 4, !dbg !42 |
| %add = add nsw i32 %5, %call, !dbg !42 |
| store i32 %add, ptr %sum, align 4, !dbg !42 |
| br label %if.end, !dbg !43 |
| |
| if.end: ; preds = %if.then, %for.body |
| %6 = load i64, ptr %i, align 8, !dbg !44 |
| %div = sdiv i64 %6, 239, !dbg !45 |
| %7 = load i32, ptr %sum, align 4, !dbg !46 |
| %conv2 = sext i32 %7 to i64, !dbg !46 |
| %mul = mul nsw i64 %conv2, %div, !dbg !46 |
| %conv3 = trunc i64 %mul to i32, !dbg !46 |
| store i32 %conv3, ptr %sum, align 4, !dbg !46 |
| br label %for.inc, !dbg !47 |
| |
| for.inc: ; preds = %if.end |
| %8 = load i64, ptr %i, align 8, !dbg !48 |
| %inc = add nsw i64 %8, 1, !dbg !48 |
| store i64 %inc, ptr %i, align 8, !dbg !48 |
| br label %for.cond, !dbg !50 |
| |
| for.end: ; preds = %for.cond |
| %9 = load i32, ptr %sum, align 4, !dbg !51 |
| %call4 = call i32 (ptr, ...) @printf(ptr @.str, i32 %9), !dbg !52 |
| ret i32 0, !dbg !53 |
| } |
| |
| declare i32 @printf(ptr, ...) |
| |
| attributes #0 = { nounwind readnone } |
| attributes #1 = {"use-sample-profile"} |
| |
| !llvm.dbg.cu = !{!2} |
| !llvm.module.flags = !{!8, !9} |
| !llvm.ident = !{!10} |
| |
| !0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) |
| !1 = !DIGlobalVariable(name: "N", scope: !2, file: !3, line: 3, type: !6, isLocal: false, isDefinition: true) |
| !2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !3, producer: "clang version 3.8.0 (trunk 253667) (llvm/trunk 253670)", isOptimized: false, runtimeVersion: 0, emissionKind: NoDebug, enums: !4, globals: !5) |
| !3 = !DIFile(filename: "cov-zero-samples.cc", directory: ".") |
| !4 = !{} |
| !5 = !{!0} |
| !6 = !DIDerivedType(tag: DW_TAG_volatile_type, baseType: !7) |
| !7 = !DIBasicType(name: "long long int", size: 64, align: 64, encoding: DW_ATE_signed) |
| !8 = !{i32 2, !"Dwarf Version", i32 4} |
| !9 = !{i32 2, !"Debug Info Version", i32 3} |
| !10 = !{!"clang version 3.8.0 (trunk 253667) (llvm/trunk 253670)"} |
| !11 = distinct !DISubprogram(name: "never_called", linkageName: "_Z12never_calledi", scope: !3, file: !3, line: 5, type: !12, isLocal: false, isDefinition: true, scopeLine: 5, flags: DIFlagPrototyped, isOptimized: false, unit: !2, retainedNodes: !4) |
| !12 = !DISubroutineType(types: !13) |
| !13 = !{!14, !14} |
| !14 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed) |
| !15 = !DILocation(line: 5, column: 27, scope: !16) |
| !16 = !DILexicalBlockFile(scope: !11, file: !3, discriminator: 6) |
| !17 = distinct !DISubprogram(name: "main", scope: !3, file: !3, line: 7, type: !18, isLocal: false, isDefinition: true, scopeLine: 7, flags: DIFlagPrototyped, isOptimized: false, unit: !2, retainedNodes: !4) |
| !18 = !DISubroutineType(types: !19) |
| !19 = !{!14} |
| !20 = !DILocalVariable(name: "sum", scope: !17, file: !3, line: 8, type: !14) |
| !21 = !DIExpression() |
| !22 = !DILocation(line: 8, column: 7, scope: !17) |
| !23 = !DILocalVariable(name: "i", scope: !24, file: !3, line: 9, type: !7) |
| !24 = distinct !DILexicalBlock(scope: !17, file: !3, line: 9, column: 3) |
| !25 = !DILocation(line: 9, column: 18, scope: !24) |
| !26 = !DILocation(line: 9, column: 8, scope: !24) |
| !27 = !DILocation(line: 9, column: 25, scope: !28) |
| !28 = !DILexicalBlockFile(scope: !29, file: !3, discriminator: 2) |
| !29 = distinct !DILexicalBlock(scope: !24, file: !3, line: 9, column: 3) |
| !30 = !DILocation(line: 9, column: 29, scope: !28) |
| !31 = !DILocation(line: 9, column: 27, scope: !28) |
| !32 = !DILocation(line: 9, column: 3, scope: !28) |
| !33 = !DILocation(line: 10, column: 9, scope: !34) |
| !34 = distinct !DILexicalBlock(scope: !35, file: !3, line: 10, column: 9) |
| !35 = distinct !DILexicalBlock(scope: !29, file: !3, line: 9, column: 37) |
| !36 = !DILocation(line: 10, column: 13, scope: !34) |
| !37 = !DILocation(line: 10, column: 11, scope: !34) |
| !38 = !DILocation(line: 10, column: 9, scope: !35) |
| !39 = !DILocation(line: 10, column: 36, scope: !40) |
| !40 = !DILexicalBlockFile(scope: !34, file: !3, discriminator: 2) |
| !41 = !DILocation(line: 10, column: 23, scope: !40) |
| !42 = !DILocation(line: 10, column: 20, scope: !40) |
| !43 = !DILocation(line: 10, column: 16, scope: !40) |
| !44 = !DILocation(line: 11, column: 12, scope: !35) |
| !45 = !DILocation(line: 11, column: 14, scope: !35) |
| !46 = !DILocation(line: 11, column: 9, scope: !35) |
| !47 = !DILocation(line: 12, column: 3, scope: !35) |
| !48 = !DILocation(line: 9, column: 33, scope: !49) |
| !49 = !DILexicalBlockFile(scope: !29, file: !3, discriminator: 4) |
| !50 = !DILocation(line: 9, column: 3, scope: !49) |
| !51 = !DILocation(line: 13, column: 25, scope: !17) |
| !52 = !DILocation(line: 13, column: 3, scope: !17) |
| !53 = !DILocation(line: 14, column: 3, scope: !17) |
| |