1; RUN: opt < %s -passes=sample-profile -sample-profile-file=%S/Inputs/warm-inline-instance.prof -S | FileCheck %s 2 3@.str = private unnamed_addr constant [11 x i8] c"sum is %d\0A\00", align 1 4 5; Function Attrs: nounwind uwtable 6define i32 @foo(i32 %x, i32 %y) #0 !dbg !4 { 7entry: 8 %x.addr = alloca i32, align 4 9 %y.addr = alloca i32, align 4 10 store i32 %x, ptr %x.addr, align 4 11 store i32 %y, ptr %y.addr, align 4 12 %t0 = load i32, ptr %x.addr, align 4, !dbg !11 13 %t1 = load i32, ptr %y.addr, align 4, !dbg !11 14 %add = add nsw i32 %t0, %t1, !dbg !11 15 ret i32 %add, !dbg !11 16} 17 18define i32 @goo(i32 %x, i32 %y) #0 { 19entry: 20 %x.addr = alloca i32, align 4 21 %y.addr = alloca i32, align 4 22 store i32 %x, ptr %x.addr, align 4 23 store i32 %y, ptr %y.addr, align 4 24 %t0 = load i32, ptr %x.addr, align 4, !dbg !11 25 %t1 = load i32, ptr %y.addr, align 4, !dbg !11 26 %add = add nsw i32 %t0, %t1, !dbg !11 27 ret i32 %add, !dbg !11 28} 29 30; Function Attrs: uwtable 31define i32 @main() #0 !dbg !7 { 32entry: 33 %retval = alloca i32, align 4 34 %s = alloca i32, align 4 35 %i = alloca i32, align 4 36 store i32 0, ptr %retval 37 store i32 0, ptr %i, align 4, !dbg !12 38 br label %while.cond, !dbg !13 39 40while.cond: ; preds = %if.end, %entry 41 %t0 = load i32, ptr %i, align 4, !dbg !14 42 %inc = add nsw i32 %t0, 1, !dbg !14 43 store i32 %inc, ptr %i, align 4, !dbg !14 44 %cmp = icmp slt i32 %t0, 400000000, !dbg !14 45 br i1 %cmp, label %while.body, label %while.end, !dbg !14 46 47while.body: ; preds = %while.cond 48 %t1 = load i32, ptr %i, align 4, !dbg !16 49 %cmp1 = icmp ne i32 %t1, 100, !dbg !16 50 br i1 %cmp1, label %if.then, label %if.else, !dbg !16 51 52if.then: ; preds = %while.body 53 %t2 = load i32, ptr %i, align 4, !dbg !18 54 %t3 = load i32, ptr %s, align 4, !dbg !18 55; Although the ratio of total samples of @foo vs total samples of @main is 56; small, since the total samples count is larger than hot cutoff computed by 57; ProfileSummaryInfo, we will still regard the callsite of foo as hot and 58; early inlining will inline it. 59; CHECK-LABEL: @main( 60; CHECK-NOT: call i32 @foo(i32 %t2, i32 %t3) 61 %call1 = call i32 @foo(i32 %t2, i32 %t3), !dbg !18 62 store i32 %call1, ptr %s, align 4, !dbg !18 63 br label %if.end, !dbg !18 64 65if.else: ; preds = %while.body 66; call @goo 's basicblock doesn't get any sample, so no profile will be annotated. 67; CHECK: call i32 @goo(i32 2, i32 3), !dbg !{{[0-9]+}} 68; CHECK-NOT: !prof 69; CHECK-SAME: {{$}} 70 %call2 = call i32 @goo(i32 2, i32 3), !dbg !26 71 store i32 %call2, ptr %s, align 4, !dbg !20 72 br label %if.end 73 74if.end: ; preds = %if.else, %if.then 75 br label %while.cond, !dbg !22 76 77while.end: ; preds = %while.cond 78 %t4 = load i32, ptr %s, align 4, !dbg !24 79 %call3 = call i32 (ptr, ...) @printf(ptr @.str, i32 %t4), !dbg !24 80 ret i32 0, !dbg !25 81} 82 83declare i32 @printf(ptr, ...) #2 84 85attributes #0 = { "use-sample-profile" } 86 87!llvm.dbg.cu = !{!0} 88!llvm.module.flags = !{!8, !9} 89!llvm.ident = !{!10} 90 91!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.5 ", isOptimized: false, emissionKind: NoDebug, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2) 92!1 = !DIFile(filename: "calls.cc", directory: ".") 93!2 = !{} 94!4 = distinct !DISubprogram(name: "foo", line: 3, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 3, file: !1, scope: !5, type: !6, retainedNodes: !2) 95!5 = !DIFile(filename: "calls.cc", directory: ".") 96!6 = !DISubroutineType(types: !2) 97!7 = distinct !DISubprogram(name: "main", line: 7, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 7, file: !1, scope: !5, type: !6, retainedNodes: !2) 98!8 = !{i32 2, !"Dwarf Version", i32 4} 99!9 = !{i32 1, !"Debug Info Version", i32 3} 100!10 = !{!"clang version 3.5 "} 101!11 = !DILocation(line: 4, scope: !4) 102!12 = !DILocation(line: 8, scope: !7) 103!13 = !DILocation(line: 9, scope: !7) 104!14 = !DILocation(line: 9, scope: !15) 105!15 = !DILexicalBlockFile(discriminator: 2, file: !1, scope: !7) 106!16 = !DILocation(line: 10, scope: !17) 107!17 = distinct !DILexicalBlock(line: 10, column: 0, file: !1, scope: !7) 108!18 = !DILocation(line: 10, scope: !19) 109!19 = !DILexicalBlockFile(discriminator: 2, file: !1, scope: !17) 110!20 = !DILocation(line: 10, scope: !21) 111!21 = !DILexicalBlockFile(discriminator: 4, file: !1, scope: !17) 112!22 = !DILocation(line: 10, scope: !23) 113!23 = !DILexicalBlockFile(discriminator: 6, file: !1, scope: !17) 114!24 = !DILocation(line: 11, scope: !7) 115!25 = !DILocation(line: 12, scope: !7) 116!26 = !DILocation(line: 11, scope: !19) 117