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