1 ; The two profiles used in this test are the same but encoded in different 2 ; formats. This checks that we produce the same profile annotations regardless 3 ; of the profile format. 4 ; 5 ; RUN: opt < %s -sample-profile -sample-profile-file=%S/Inputs/fnptr.prof | opt -analyze -branch-prob | FileCheck %s 6 ; RUN: opt < %s -sample-profile -sample-profile-file=%S/Inputs/fnptr.binprof | opt -analyze -branch-prob | FileCheck %s 7 8 ; CHECK: edge for.body3 -> if.then probability is 0x1a4f3959 / 0x80000000 = 20.55% 9 ; CHECK: edge for.body3 -> if.else probability is 0x65b0c6a7 / 0x80000000 = 79.45% 10 ; CHECK: edge for.inc -> for.inc12 probability is 0x33d4a4c1 / 0x80000000 = 40.49% 11 ; CHECK: edge for.inc -> for.body3 probability is 0x4c2b5b3f / 0x80000000 = 59.51% 12 ; CHECK: edge for.inc12 -> for.end14 probability is 0x3f06d04e / 0x80000000 = 49.24% 13 ; CHECK: edge for.inc12 -> for.cond1.preheader probability is 0x40f92fb2 / 0x80000000 = 50.76% 14 15 ; Original C++ test case. 16 ; 17 ; #include <stdlib.h> 18 ; #include <math.h> 19 ; #include <stdio.h> 20 ; 21 ; #define N 10000 22 ; #define M 6000 23 ; 24 ; double foo(int x) { 25 ; return x * sin((double)x); 26 ; } 27 ; 28 ; double bar(int x) { 29 ; return x - cos((double)x); 30 ; } 31 ; 32 ; int main() { 33 ; double (*fptr)(int); 34 ; double S = 0; 35 ; for (int i = 0; i < N; i++) 36 ; for (int j = 0; j < M; j++) { 37 ; fptr = (rand() % 100 < 30) ? foo : bar; 38 ; if (rand() % 100 < 10) 39 ; S += (*fptr)(i + j * 300); 40 ; else 41 ; S += (*fptr)(i - j / 840); 42 ; } 43 ; printf("S = %lf\n", S); 44 ; return 0; 45 ; } 46 47 @.str = private unnamed_addr constant [9 x i8] c"S = %lf\0A\00", align 1 48 49 define double @_Z3fooi(i32 %x) #0 !dbg !3 { 50 entry: 51 %conv = sitofp i32 %x to double, !dbg !2 52 %call = tail call double @sin(double %conv) #3, !dbg !8 53 %mul = fmul double %conv, %call, !dbg !8 54 ret double %mul, !dbg !8 55 } 56 57 declare double @sin(double) #1 58 59 define double @_Z3bari(i32 %x) #0 !dbg !10 { 60 entry: 61 %conv = sitofp i32 %x to double, !dbg !9 62 %call = tail call double @cos(double %conv) #3, !dbg !11 63 %sub = fsub double %conv, %call, !dbg !11 64 ret double %sub, !dbg !11 65 } 66 67 declare double @cos(double) #1 68 69 define i32 @main() #2 !dbg !13 { 70 entry: 71 br label %for.cond1.preheader, !dbg !12 72 73 for.cond1.preheader: ; preds = %for.inc12, %entry 74 %i.025 = phi i32 [ 0, %entry ], [ %inc13, %for.inc12 ] 75 %S.024 = phi double [ 0.000000e+00, %entry ], [ %S.2.lcssa, %for.inc12 ] 76 br label %for.body3, !dbg !14 77 78 for.body3: ; preds = %for.inc, %for.cond1.preheader 79 %j.023 = phi i32 [ 0, %for.cond1.preheader ], [ %inc, %for.inc ] 80 %S.122 = phi double [ %S.024, %for.cond1.preheader ], [ %S.2, %for.inc ] 81 %call = tail call i32 @rand() #3, !dbg !15 82 %rem = srem i32 %call, 100, !dbg !15 83 %cmp4 = icmp slt i32 %rem, 30, !dbg !15 84 %_Z3fooi._Z3bari = select i1 %cmp4, double (i32)* @_Z3fooi, double (i32)* @_Z3bari, !dbg !15 85 %call5 = tail call i32 @rand() #3, !dbg !16 86 %rem6 = srem i32 %call5, 100, !dbg !16 87 %cmp7 = icmp slt i32 %rem6, 10, !dbg !16 88 br i1 %cmp7, label %if.then, label %if.else, !dbg !16, !prof !17 89 90 if.then: ; preds = %for.body3 91 %mul = mul nsw i32 %j.023, 300, !dbg !18 92 %add = add nsw i32 %mul, %i.025, !dbg !18 93 %call8 = tail call double %_Z3fooi._Z3bari(i32 %add), !dbg !18 94 br label %for.inc, !dbg !18 95 96 if.else: ; preds = %for.body3 97 %div = sdiv i32 %j.023, 840, !dbg !19 98 %sub = sub nsw i32 %i.025, %div, !dbg !19 99 %call10 = tail call double %_Z3fooi._Z3bari(i32 %sub), !dbg !19 100 br label %for.inc 101 102 for.inc: ; preds = %if.then, %if.else 103 %call8.pn = phi double [ %call8, %if.then ], [ %call10, %if.else ] 104 %S.2 = fadd double %S.122, %call8.pn, !dbg !18 105 %inc = add nsw i32 %j.023, 1, !dbg !20 106 %exitcond = icmp eq i32 %j.023, 5999, !dbg !14 107 br i1 %exitcond, label %for.inc12, label %for.body3, !dbg !14, !prof !21 108 109 for.inc12: ; preds = %for.inc 110 %S.2.lcssa = phi double [ %S.2, %for.inc ] 111 %inc13 = add nsw i32 %i.025, 1, !dbg !22 112 %exitcond26 = icmp eq i32 %i.025, 9999, !dbg !12 113 br i1 %exitcond26, label %for.end14, label %for.cond1.preheader, !dbg !12, !prof !23 114 115 for.end14: ; preds = %for.inc12 116 %S.2.lcssa.lcssa = phi double [ %S.2.lcssa, %for.inc12 ] 117 %call15 = tail call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str, i64 0, i64 0), double %S.2.lcssa.lcssa), !dbg !24 118 ret i32 0, !dbg !25 119 } 120 121 ; Function Attrs: nounwind 122 declare i32 @rand() #1 123 124 ; Function Attrs: nounwind 125 declare i32 @printf(i8* nocapture readonly, ...) #1 126 127 !llvm.module.flags = !{!0} 128 !llvm.ident = !{!1} 129 130 !0 = !{i32 2, !"Debug Info Version", i32 3} 131 !1 = !{!"clang version 3.6.0 "} 132 !2 = !DILocation(line: 9, column: 3, scope: !3) 133 !3 = distinct !DISubprogram(name: "foo", line: 8, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 8, file: !4, scope: !5, type: !6, variables: !7) 134 !4 = !DIFile(filename: "fnptr.cc", directory: ".") 135 !5 = !DIFile(filename: "fnptr.cc", directory: ".") 136 !6 = !DISubroutineType(types: !7) 137 !7 = !{} 138 !8 = !DILocation(line: 9, column: 14, scope: !3) 139 !9 = !DILocation(line: 13, column: 3, scope: !10) 140 !10 = distinct !DISubprogram(name: "bar", line: 12, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 12, file: !4, scope: !5, type: !6, variables: !7) 141 !11 = !DILocation(line: 13, column: 14, scope: !10) 142 !12 = !DILocation(line: 19, column: 3, scope: !13) 143 !13 = distinct !DISubprogram(name: "main", line: 16, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 16, file: !4, scope: !5, type: !6, variables: !7) 144 !14 = !DILocation(line: 20, column: 5, scope: !13) 145 !15 = !DILocation(line: 21, column: 15, scope: !13) 146 !16 = !DILocation(line: 22, column: 11, scope: !13) 147 !17 = !{!"branch_weights", i32 534, i32 2064} 148 !18 = !DILocation(line: 23, column: 14, scope: !13) 149 !19 = !DILocation(line: 25, column: 14, scope: !13) 150 !20 = !DILocation(line: 20, column: 28, scope: !13) 151 !21 = !{!"branch_weights", i32 0, i32 1075} 152 !22 = !DILocation(line: 19, column: 26, scope: !13) 153 !23 = !{!"branch_weights", i32 0, i32 534} 154 !24 = !DILocation(line: 27, column: 3, scope: !13) 155 !25 = !DILocation(line: 28, column: 3, scope: !13) 156
