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      1 ; RUN: opt < %s -sample-profile -sample-profile-file=%S/Inputs/inline.prof -sample-profile-inline-hot-threshold=1 -S | FileCheck %s
      2 
      3 ; Original C++ test case
      4 ;
      5 ; #include <stdio.h>
      6 ;
      7 ; int sum(int x, int y) {
      8 ;   return x + y;
      9 ; }
     10 ;
     11 ; int main() {
     12 ;   int s, i = 0;
     13 ;   while (i++ < 20000 * 20000)
     14 ;     if (i != 100) s = sum(i, s); else s = 30;
     15 ;   printf("sum is %d\n", s);
     16 ;   return 0;
     17 ; }
     18 ;
     19 @.str = private unnamed_addr constant [11 x i8] c"sum is %d\0A\00", align 1
     20 
     21 ; Function Attrs: nounwind uwtable
     22 define i32 @_Z3sumii(i32 %x, i32 %y) !dbg !4 {
     23 entry:
     24   %x.addr = alloca i32, align 4
     25   %y.addr = alloca i32, align 4
     26   store i32 %x, i32* %x.addr, align 4
     27   store i32 %y, i32* %y.addr, align 4
     28   %0 = load i32, i32* %x.addr, align 4, !dbg !11
     29   %1 = load i32, i32* %y.addr, align 4, !dbg !11
     30   %add = add nsw i32 %0, %1, !dbg !11
     31   ret i32 %add, !dbg !11
     32 }
     33 
     34 ; Function Attrs: uwtable
     35 define i32 @main() !dbg !7 {
     36 entry:
     37   %retval = alloca i32, align 4
     38   %s = alloca i32, align 4
     39   %i = alloca i32, align 4
     40   store i32 0, i32* %retval
     41   store i32 0, i32* %i, align 4, !dbg !12
     42   br label %while.cond, !dbg !13
     43 
     44 while.cond:                                       ; preds = %if.end, %entry
     45   %0 = load i32, i32* %i, align 4, !dbg !14
     46   %inc = add nsw i32 %0, 1, !dbg !14
     47   store i32 %inc, i32* %i, align 4, !dbg !14
     48   %cmp = icmp slt i32 %0, 400000000, !dbg !14
     49   br i1 %cmp, label %while.body, label %while.end, !dbg !14
     50 
     51 while.body:                                       ; preds = %while.cond
     52   %1 = load i32, i32* %i, align 4, !dbg !16
     53   %cmp1 = icmp ne i32 %1, 100, !dbg !16
     54   br i1 %cmp1, label %if.then, label %if.else, !dbg !16
     55 
     56 
     57 if.then:                                          ; preds = %while.body
     58   %2 = load i32, i32* %i, align 4, !dbg !18
     59   %3 = load i32, i32* %s, align 4, !dbg !18
     60   %call = call i32 @_Z3sumii(i32 %2, i32 %3), !dbg !18
     61 ; CHECK-NOT: call i32 @_Z3sumii
     62   store i32 %call, i32* %s, align 4, !dbg !18
     63   br label %if.end, !dbg !18
     64 
     65 if.else:                                          ; preds = %while.body
     66   store i32 30, i32* %s, align 4, !dbg !20
     67   br label %if.end
     68 
     69 if.end:                                           ; preds = %if.else, %if.then
     70   br label %while.cond, !dbg !22
     71 
     72 while.end:                                        ; preds = %while.cond
     73   %4 = load i32, i32* %s, align 4, !dbg !24
     74   %call2 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str, i32 0, i32 0), i32 %4), !dbg !24
     75   ret i32 0, !dbg !25
     76 }
     77 
     78 declare i32 @printf(i8*, ...) #2
     79 
     80 !llvm.module.flags = !{!8, !9}
     81 !llvm.ident = !{!10}
     82 
     83 !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.5 ", isOptimized: false, emissionKind: 0, file: !1, enums: !2, retainedTypes: !2, subprograms: !3, globals: !2, imports: !2)
     84 !1 = !DIFile(filename: "calls.cc", directory: ".")
     85 !2 = !{}
     86 !3 = !{!4, !7}
     87 !4 = distinct !DISubprogram(name: "sum", line: 3, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 3, file: !1, scope: !5, type: !6, variables: !2)
     88 !5 = !DIFile(filename: "calls.cc", directory: ".")
     89 !6 = !DISubroutineType(types: !2)
     90 !7 = distinct !DISubprogram(name: "main", line: 7, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 7, file: !1, scope: !5, type: !6, variables: !2)
     91 !8 = !{i32 2, !"Dwarf Version", i32 4}
     92 !9 = !{i32 1, !"Debug Info Version", i32 3}
     93 !10 = !{!"clang version 3.5 "}
     94 !11 = !DILocation(line: 4, scope: !4)
     95 !12 = !DILocation(line: 8, scope: !7)
     96 !13 = !DILocation(line: 9, scope: !7)
     97 !14 = !DILocation(line: 9, scope: !15)
     98 !15 = !DILexicalBlockFile(discriminator: 1, file: !1, scope: !7)
     99 !16 = !DILocation(line: 10, scope: !17)
    100 !17 = distinct !DILexicalBlock(line: 10, column: 0, file: !1, scope: !7)
    101 !18 = !DILocation(line: 10, scope: !19)
    102 !19 = !DILexicalBlockFile(discriminator: 1, file: !1, scope: !17)
    103 !20 = !DILocation(line: 10, scope: !21)
    104 !21 = !DILexicalBlockFile(discriminator: 2, file: !1, scope: !17)
    105 !22 = !DILocation(line: 10, scope: !23)
    106 !23 = !DILexicalBlockFile(discriminator: 3, file: !1, scope: !17)
    107 !24 = !DILocation(line: 11, scope: !7)
    108 !25 = !DILocation(line: 12, scope: !7)
    109