+++ /dev/null
-; RUN: opt < %s -sample-profile -sample-profile-file=%S/Inputs/cfg.prof | opt -analyze -branch-prob | FileCheck %s
-
-; Original C++ code for this test case:
-;
-; #include <stdio.h>
-; #include <stdlib.h>
-
-; int main(int argc, char *argv[]) {
-; if (argc < 2)
-; return 1;
-; double result;
-; int limit = atoi(argv[1]);
-; if (limit > 100) {
-; double s = 23.041968 * atoi(argv[2]);
-; for (int u = 0; u < limit; u++) {
-; double x = s;
-; s = x + 3.049 + (double)u;
-; s -= s + 3.94 / x * 0.32;
-; }
-; result = s;
-; } else {
-; result = atoi(argv[2]);
-; }
-; printf("result is %lf\n", result);
-; return 0;
-; }
-
-@.str = private unnamed_addr constant [15 x i8] c"result is %lf\0A\00", align 1
-
-; Function Attrs: uwtable
-define i32 @main(i32 %argc, i8** %argv) #0 {
-; CHECK: Printing analysis 'Branch Probability Analysis' for function 'main':
-
-entry:
- %retval = alloca i32, align 4
- %argc.addr = alloca i32, align 4
- %argv.addr = alloca i8**, align 8
- %result = alloca double, align 8
- %limit = alloca i32, align 4
- %s = alloca double, align 8
- %u = alloca i32, align 4
- %x = alloca double, align 8
- store i32 0, i32* %retval, align 4
- store i32 %argc, i32* %argc.addr, align 4
- call void @llvm.dbg.declare(metadata i32* %argc.addr, metadata !16, metadata !17), !dbg !18
- store i8** %argv, i8*** %argv.addr, align 8
- call void @llvm.dbg.declare(metadata i8*** %argv.addr, metadata !19, metadata !17), !dbg !20
- %0 = load i32, i32* %argc.addr, align 4, !dbg !21
- %cmp = icmp slt i32 %0, 2, !dbg !23
- br i1 %cmp, label %if.then, label %if.end, !dbg !24
-; CHECK: edge entry -> if.then probability is 0x4ccccccd / 0x80000000 = 60.00%
-; CHECK: edge entry -> if.end probability is 0x33333333 / 0x80000000 = 40.00%
-
-if.then: ; preds = %entry
- store i32 1, i32* %retval, align 4, !dbg !25
- br label %return, !dbg !25
-
-if.end: ; preds = %entry
- call void @llvm.dbg.declare(metadata double* %result, metadata !26, metadata !17), !dbg !27
- call void @llvm.dbg.declare(metadata i32* %limit, metadata !28, metadata !17), !dbg !29
- %1 = load i8**, i8*** %argv.addr, align 8, !dbg !30
- %arrayidx = getelementptr inbounds i8*, i8** %1, i64 1, !dbg !30
- %2 = load i8*, i8** %arrayidx, align 8, !dbg !30
- %call = call i32 @atoi(i8* %2) #4, !dbg !31
- store i32 %call, i32* %limit, align 4, !dbg !29
- %3 = load i32, i32* %limit, align 4, !dbg !32
- %cmp1 = icmp sgt i32 %3, 100, !dbg !34
- br i1 %cmp1, label %if.then.2, label %if.else, !dbg !35
-; CHECK: edge if.end -> if.then.2 probability is 0x66666666 / 0x80000000 = 80.00%
-; CHECK: edge if.end -> if.else probability is 0x1999999a / 0x80000000 = 20.00%
-
-if.then.2: ; preds = %if.end
- call void @llvm.dbg.declare(metadata double* %s, metadata !36, metadata !17), !dbg !38
- %4 = load i8**, i8*** %argv.addr, align 8, !dbg !39
- %arrayidx3 = getelementptr inbounds i8*, i8** %4, i64 2, !dbg !39
- %5 = load i8*, i8** %arrayidx3, align 8, !dbg !39
- %call4 = call i32 @atoi(i8* %5) #4, !dbg !40
- %conv = sitofp i32 %call4 to double, !dbg !40
- %mul = fmul double 0x40370ABE6A337A81, %conv, !dbg !41
- store double %mul, double* %s, align 8, !dbg !38
- call void @llvm.dbg.declare(metadata i32* %u, metadata !42, metadata !17), !dbg !44
- store i32 0, i32* %u, align 4, !dbg !44
- br label %for.cond, !dbg !45
-
-for.cond: ; preds = %for.inc, %if.then.2
- %6 = load i32, i32* %u, align 4, !dbg !46
- %7 = load i32, i32* %limit, align 4, !dbg !48
- %cmp5 = icmp slt i32 %6, %7, !dbg !49
- br i1 %cmp5, label %for.body, label %for.end, !dbg !50
-
-for.body: ; preds = %for.cond
- call void @llvm.dbg.declare(metadata double* %x, metadata !51, metadata !17), !dbg !53
- %8 = load double, double* %s, align 8, !dbg !54
- store double %8, double* %x, align 8, !dbg !53
- %9 = load double, double* %x, align 8, !dbg !55
- %add = fadd double %9, 3.049000e+00, !dbg !56
- %10 = load i32, i32* %u, align 4, !dbg !57
- %conv6 = sitofp i32 %10 to double, !dbg !57
- %add7 = fadd double %add, %conv6, !dbg !58
- store double %add7, double* %s, align 8, !dbg !59
- %11 = load double, double* %s, align 8, !dbg !60
- %12 = load double, double* %x, align 8, !dbg !61
- %div = fdiv double 3.940000e+00, %12, !dbg !62
- %mul8 = fmul double %div, 3.200000e-01, !dbg !63
- %add9 = fadd double %11, %mul8, !dbg !64
- %13 = load double, double* %s, align 8, !dbg !65
- %sub = fsub double %13, %add9, !dbg !65
- store double %sub, double* %s, align 8, !dbg !65
- br label %for.inc, !dbg !66
-
-for.inc: ; preds = %for.body
- %14 = load i32, i32* %u, align 4, !dbg !67
- %inc = add nsw i32 %14, 1, !dbg !67
- store i32 %inc, i32* %u, align 4, !dbg !67
- br label %for.cond, !dbg !68
-
-for.end: ; preds = %for.cond
- %15 = load double, double* %s, align 8, !dbg !69
- store double %15, double* %result, align 8, !dbg !70
- br label %if.end.13, !dbg !71
-
-if.else: ; preds = %if.end
- %16 = load i8**, i8*** %argv.addr, align 8, !dbg !72
- %arrayidx10 = getelementptr inbounds i8*, i8** %16, i64 2, !dbg !72
- %17 = load i8*, i8** %arrayidx10, align 8, !dbg !72
- %call11 = call i32 @atoi(i8* %17) #4, !dbg !74
- %conv12 = sitofp i32 %call11 to double, !dbg !74
- store double %conv12, double* %result, align 8, !dbg !75
- br label %if.end.13
-
-if.end.13: ; preds = %if.else, %for.end
- %18 = load double, double* %result, align 8, !dbg !76
- %call14 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str, i32 0, i32 0), double %18), !dbg !77
- store i32 0, i32* %retval, align 4, !dbg !78
- br label %return, !dbg !78
-
-return: ; preds = %if.end.13, %if.then
- %19 = load i32, i32* %retval, align 4, !dbg !79
- ret i32 %19, !dbg !79
-}
-
-; Function Attrs: nounwind readnone
-declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
-
-; Function Attrs: nounwind readonly
-declare i32 @atoi(i8*) #2
-
-declare i32 @printf(i8*, ...) #3
-
-attributes #0 = { uwtable "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+sse,+sse2" "unsafe-fp-math"="false" "use-soft-float"="false" }
-attributes #1 = { nounwind readnone }
-attributes #2 = { nounwind readonly "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+sse,+sse2" "unsafe-fp-math"="false" "use-soft-float"="false" }
-attributes #3 = { "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+sse,+sse2" "unsafe-fp-math"="false" "use-soft-float"="false" }
-attributes #4 = { nounwind readonly }
-
-!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 248211) (llvm/trunk 248217)", isOptimized: false, runtimeVersion: 0, emissionKind: 1, enums: !2, retainedTypes: !3, subprograms: !5)
-!1 = !DIFile(filename: "test.cc", directory: "/ssd/llvm_commit")
-!2 = !{}
-!3 = !{!4}
-!4 = !DIBasicType(name: "double", size: 64, align: 64, encoding: DW_ATE_float)
-!5 = !{!6}
-!6 = distinct !DISubprogram(name: "main", scope: !1, file: !1, line: 4, type: !7, isLocal: false, isDefinition: true, scopeLine: 4, flags: DIFlagPrototyped, isOptimized: false, function: i32 (i32, i8**)* @main, variables: !2)
-!7 = !DISubroutineType(types: !8)
-!8 = !{!9, !9, !10}
-!9 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
-!10 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !11, size: 64, align: 64)
-!11 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !12, size: 64, align: 64)
-!12 = !DIBasicType(name: "char", size: 8, align: 8, encoding: DW_ATE_signed_char)
-!13 = !{i32 2, !"Dwarf Version", i32 4}
-!14 = !{i32 2, !"Debug Info Version", i32 3}
-!15 = !{!"clang version 3.8.0 (trunk 248211) (llvm/trunk 248217)"}
-!16 = !DILocalVariable(name: "argc", arg: 1, scope: !6, file: !1, line: 4, type: !9)
-!17 = !DIExpression()
-!18 = !DILocation(line: 4, column: 15, scope: !6)
-!19 = !DILocalVariable(name: "argv", arg: 2, scope: !6, file: !1, line: 4, type: !10)
-!20 = !DILocation(line: 4, column: 27, scope: !6)
-!21 = !DILocation(line: 5, column: 8, scope: !22)
-!22 = distinct !DILexicalBlock(scope: !6, file: !1, line: 5, column: 8)
-!23 = !DILocation(line: 5, column: 13, scope: !22)
-!24 = !DILocation(line: 5, column: 8, scope: !6)
-!25 = !DILocation(line: 6, column: 6, scope: !22)
-!26 = !DILocalVariable(name: "result", scope: !6, file: !1, line: 7, type: !4)
-!27 = !DILocation(line: 7, column: 11, scope: !6)
-!28 = !DILocalVariable(name: "limit", scope: !6, file: !1, line: 8, type: !9)
-!29 = !DILocation(line: 8, column: 8, scope: !6)
-!30 = !DILocation(line: 8, column: 21, scope: !6)
-!31 = !DILocation(line: 8, column: 16, scope: !6)
-!32 = !DILocation(line: 9, column: 8, scope: !33)
-!33 = distinct !DILexicalBlock(scope: !6, file: !1, line: 9, column: 8)
-!34 = !DILocation(line: 9, column: 14, scope: !33)
-!35 = !DILocation(line: 9, column: 8, scope: !6)
-!36 = !DILocalVariable(name: "s", scope: !37, file: !1, line: 10, type: !4)
-!37 = distinct !DILexicalBlock(scope: !33, file: !1, line: 9, column: 21)
-!38 = !DILocation(line: 10, column: 13, scope: !37)
-!39 = !DILocation(line: 10, column: 34, scope: !37)
-!40 = !DILocation(line: 10, column: 29, scope: !37)
-!41 = !DILocation(line: 10, column: 27, scope: !37)
-!42 = !DILocalVariable(name: "u", scope: !43, file: !1, line: 11, type: !9)
-!43 = distinct !DILexicalBlock(scope: !37, file: !1, line: 11, column: 6)
-!44 = !DILocation(line: 11, column: 15, scope: !43)
-!45 = !DILocation(line: 11, column: 11, scope: !43)
-!46 = !DILocation(line: 11, column: 22, scope: !47)
-!47 = distinct !DILexicalBlock(scope: !43, file: !1, line: 11, column: 6)
-!48 = !DILocation(line: 11, column: 26, scope: !47)
-!49 = !DILocation(line: 11, column: 24, scope: !47)
-!50 = !DILocation(line: 11, column: 6, scope: !43)
-!51 = !DILocalVariable(name: "x", scope: !52, file: !1, line: 12, type: !4)
-!52 = distinct !DILexicalBlock(scope: !47, file: !1, line: 11, column: 38)
-!53 = !DILocation(line: 12, column: 15, scope: !52)
-!54 = !DILocation(line: 12, column: 19, scope: !52)
-!55 = !DILocation(line: 13, column: 12, scope: !52)
-!56 = !DILocation(line: 13, column: 14, scope: !52)
-!57 = !DILocation(line: 13, column: 32, scope: !52)
-!58 = !DILocation(line: 13, column: 22, scope: !52)
-!59 = !DILocation(line: 13, column: 10, scope: !52)
-!60 = !DILocation(line: 14, column: 13, scope: !52)
-!61 = !DILocation(line: 14, column: 24, scope: !52)
-!62 = !DILocation(line: 14, column: 22, scope: !52)
-!63 = !DILocation(line: 14, column: 26, scope: !52)
-!64 = !DILocation(line: 14, column: 15, scope: !52)
-!65 = !DILocation(line: 14, column: 10, scope: !52)
-!66 = !DILocation(line: 15, column: 6, scope: !52)
-!67 = !DILocation(line: 11, column: 34, scope: !47)
-!68 = !DILocation(line: 11, column: 6, scope: !47)
-!69 = !DILocation(line: 16, column: 15, scope: !37)
-!70 = !DILocation(line: 16, column: 13, scope: !37)
-!71 = !DILocation(line: 17, column: 4, scope: !37)
-!72 = !DILocation(line: 18, column: 20, scope: !73)
-!73 = distinct !DILexicalBlock(scope: !33, file: !1, line: 17, column: 11)
-!74 = !DILocation(line: 18, column: 15, scope: !73)
-!75 = !DILocation(line: 18, column: 13, scope: !73)
-!76 = !DILocation(line: 20, column: 30, scope: !6)
-!77 = !DILocation(line: 20, column: 4, scope: !6)
-!78 = !DILocation(line: 21, column: 4, scope: !6)
-!79 = !DILocation(line: 22, column: 2, scope: !6)
projects / oota-llvm.git / commitdiff