; The two profiles used in this test are the same but encoded in different
; formats. This checks that we produce the same profile annotations regardless
; of the profile format.
;
; RUN: opt < %s -passes=sample-profile -sample-profile-file=%S/Inputs/fnptr.prof | opt -passes='print<branch-prob>' -disable-output 2>&1 | FileCheck %s
; RUN: opt < %s -passes=sample-profile -sample-profile-file=%S/Inputs/fnptr.binprof | opt -passes='print<branch-prob>' -disable-output 2>&1 | FileCheck %s
; CHECK: edge %for.body3 -> %if.then probability is 0x1a56a56a / 0x80000000 = 20.58%
; CHECK: edge %for.body3 -> %if.else probability is 0x65a95a96 / 0x80000000 = 79.42%
; CHECK: edge %for.inc -> %for.inc12 probability is 0x000fbd1c / 0x80000000 = 0.05%
; CHECK: edge %for.inc -> %for.body3 probability is 0x7ff042e4 / 0x80000000 = 99.95%
; CHECK: edge %for.inc12 -> %for.end14 probability is 0x04000000 / 0x80000000 = 3.12%
; CHECK: edge %for.inc12 -> %for.cond1.preheader probability is 0x7c000000 / 0x80000000 = 96.88%
; Original C++ test case.
;
; #include <stdlib.h>
; #include <math.h>
; #include <stdio.h>
;
; #define N 10000
; #define M 6000
;
; double foo(int x) {
; return x * sin((double)x);
; }
;
; double bar(int x) {
; return x - cos((double)x);
; }
;
; int main() {
; double (*fptr)(int);
; double S = 0;
; for (int i = 0; i < N; i++)
; for (int j = 0; j < M; j++) {
; fptr = (rand() % 100 < 30) ? foo : bar;
; if (rand() % 100 < 10)
; S += (*fptr)(i + j * 300);
; else
; S += (*fptr)(i - j / 840);
; }
; printf("S = %lf\n", S);
; return 0;
; }
@.str = private unnamed_addr constant [9 x i8] c"S = %lf\0A\00", align 1
define double @_Z3fooi(i32 %x) #0 !dbg !3 {
entry:
%conv = sitofp i32 %x to double, !dbg !2
%call = tail call double @sin(double %conv) #3, !dbg !8
%mul = fmul double %conv, %call, !dbg !8
ret double %mul, !dbg !8
}
declare double @sin(double) #1
define double @_Z3bari(i32 %x) #0 !dbg !10 {
entry:
%conv = sitofp i32 %x to double, !dbg !9
%call = tail call double @cos(double %conv) #3, !dbg !11
%sub = fsub double %conv, %call, !dbg !11
ret double %sub, !dbg !11
}
declare double @cos(double) #1
define i32 @main() #2 !dbg !13 {
entry:
br label %for.cond1.preheader, !dbg !12
for.cond1.preheader: ; preds = %for.inc12, %entry
%i.025 = phi i32 [ 0, %entry ], [ %inc13, %for.inc12 ]
%S.024 = phi double [ 0.000000e+00, %entry ], [ %S.2.lcssa, %for.inc12 ]
br label %for.body3, !dbg !14
for.body3: ; preds = %for.inc, %for.cond1.preheader
%j.023 = phi i32 [ 0, %for.cond1.preheader ], [ %inc, %for.inc ]
%S.122 = phi double [ %S.024, %for.cond1.preheader ], [ %S.2, %for.inc ]
%call = tail call i32 @rand() #3, !dbg !15
%rem = srem i32 %call, 100, !dbg !15
%cmp4 = icmp slt i32 %rem, 30, !dbg !15
%_Z3fooi._Z3bari = select i1 %cmp4, ptr @_Z3fooi, ptr @_Z3bari, !dbg !15
%call5 = tail call i32 @rand() #3, !dbg !16
%rem6 = srem i32 %call5, 100, !dbg !16
%cmp7 = icmp slt i32 %rem6, 10, !dbg !16
br i1 %cmp7, label %if.then, label %if.else, !dbg !16
if.then: ; preds = %for.body3
%mul = mul nsw i32 %j.023, 300, !dbg !18
%add = add nsw i32 %mul, %i.025, !dbg !18
%call8 = tail call double %_Z3fooi._Z3bari(i32 %add), !dbg !18
br label %for.inc, !dbg !18
if.else: ; preds = %for.body3
%div = sdiv i32 %j.023, 840, !dbg !19
%sub = sub nsw i32 %i.025, %div, !dbg !19
%call10 = tail call double %_Z3fooi._Z3bari(i32 %sub), !dbg !19
br label %for.inc
for.inc: ; preds = %if.then, %if.else
%call8.pn = phi double [ %call8, %if.then ], [ %call10, %if.else ]
%S.2 = fadd double %S.122, %call8.pn, !dbg !18
%inc = add nsw i32 %j.023, 1, !dbg !20
%exitcond = icmp eq i32 %j.023, 5999, !dbg !14
br i1 %exitcond, label %for.inc12, label %for.body3, !dbg !14
for.inc12: ; preds = %for.inc
%S.2.lcssa = phi double [ %S.2, %for.inc ]
%inc13 = add nsw i32 %i.025, 1, !dbg !22
%exitcond26 = icmp eq i32 %i.025, 9999, !dbg !12
br i1 %exitcond26, label %for.end14, label %for.cond1.preheader, !dbg !12
for.end14: ; preds = %for.inc12
%S.2.lcssa.lcssa = phi double [ %S.2.lcssa, %for.inc12 ]
%call15 = tail call i32 (ptr, ...) @printf(ptr @.str, double %S.2.lcssa.lcssa), !dbg !24
ret i32 0, !dbg !25
}
; Function Attrs: nounwind
declare i32 @rand() #1
; Function Attrs: nounwind
declare i32 @printf(ptr nocapture readonly, ...) #1
attributes #0 = {"use-sample-profile"}
attributes #2 = {"use-sample-profile"}
!llvm.module.flags = !{!0}
!llvm.ident = !{!1}
!llvm.dbg.cu = !{!26}
!0 = !{i32 2, !"Debug Info Version", i32 3}
!1 = !{!"clang version 3.6.0 "}
!2 = !DILocation(line: 9, column: 3, scope: !3)
!3 = distinct !DISubprogram(name: "foo", line: 8, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: true, unit: !26, scopeLine: 8, file: !4, scope: !5, type: !6, retainedNodes: !7)
!4 = !DIFile(filename: "fnptr.cc", directory: ".")
!5 = !DIFile(filename: "fnptr.cc", directory: ".")
!6 = !DISubroutineType(types: !7)
!7 = !{}
!8 = !DILocation(line: 9, column: 14, scope: !3)
!9 = !DILocation(line: 13, column: 3, scope: !10)
!10 = distinct !DISubprogram(name: "bar", line: 12, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: true, unit: !26, scopeLine: 12, file: !4, scope: !5, type: !6, retainedNodes: !7)
!11 = !DILocation(line: 13, column: 14, scope: !10)
!12 = !DILocation(line: 19, column: 3, scope: !13)
!13 = distinct !DISubprogram(name: "main", line: 16, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: true, unit: !26, scopeLine: 16, file: !4, scope: !5, type: !6, retainedNodes: !7)
!14 = !DILocation(line: 20, column: 5, scope: !13)
!15 = !DILocation(line: 21, column: 15, scope: !13)
!16 = !DILocation(line: 22, column: 11, scope: !13)
!18 = !DILocation(line: 23, column: 14, scope: !13)
!19 = !DILocation(line: 25, column: 14, scope: !13)
!20 = !DILocation(line: 20, column: 28, scope: !13)
!22 = !DILocation(line: 19, column: 26, scope: !13)
!24 = !DILocation(line: 27, column: 3, scope: !13)
!25 = !DILocation(line: 28, column: 3, scope: !13)
!26 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.5 ", isOptimized: false, emissionKind: FullDebug, file: !4)
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