1 ; RUN: opt < %s -sample-profile -sample-profile-file=%S/Inputs/remarks.prof -S -pass-remarks=sample-profile 2>&1 | FileCheck %s
5 ; 1 #include <stdlib.h>
8 ; 4 long long int sum = 0;
9 ; 5 for (int i = 0; i < 500000000; i++)
13 ; 9 sum += -i * rand();
17 ; 13 int main() { return foo() > 0; }
19 ; We are expecting foo() to be inlined in main() (almost all the cycles are
21 ; CHECK: remark: remarks.cc:13:21: inlined hot callee '_Z3foov' with 623868 samples into 'main'
23 ; The back edge for the loop is the hottest edge in the loop subgraph.
24 ; CHECK: remark: remarks.cc:6:9: most popular destination for conditional branches at remarks.cc:5:3
26 ; The predicate almost always chooses the 'else' branch.
27 ; CHECK: remark: remarks.cc:9:15: most popular destination for conditional branches at remarks.cc:6:9
29 ; Function Attrs: nounwind uwtable
30 define i64 @_Z3foov() #0 {
32 %sum = alloca i64, align 8
33 %i = alloca i32, align 4
34 %0 = bitcast i64* %sum to i8*, !dbg !19
35 call void @llvm.lifetime.start(i64 8, i8* %0) #4, !dbg !19
36 call void @llvm.dbg.declare(metadata i64* %sum, metadata !9, metadata !20), !dbg !21
37 store i64 0, i64* %sum, align 8, !dbg !21, !tbaa !22
38 %1 = bitcast i32* %i to i8*, !dbg !26
39 call void @llvm.lifetime.start(i64 4, i8* %1) #4, !dbg !26
40 call void @llvm.dbg.declare(metadata i32* %i, metadata !10, metadata !20), !dbg !27
41 store i32 0, i32* %i, align 4, !dbg !27, !tbaa !28
42 br label %for.cond, !dbg !26
44 for.cond: ; preds = %for.inc, %entry
45 %2 = load i32, i32* %i, align 4, !dbg !30, !tbaa !28
46 %cmp = icmp slt i32 %2, 500000000, !dbg !34
47 br i1 %cmp, label %for.body, label %for.cond.cleanup, !dbg !35
49 for.cond.cleanup: ; preds = %for.cond
50 %3 = bitcast i32* %i to i8*, !dbg !36
51 call void @llvm.lifetime.end(i64 4, i8* %3) #4, !dbg !36
54 for.body: ; preds = %for.cond
55 %4 = load i32, i32* %i, align 4, !dbg !38, !tbaa !28
56 %cmp1 = icmp slt i32 %4, 1000, !dbg !40
57 br i1 %cmp1, label %if.then, label %if.else, !dbg !41
59 if.then: ; preds = %for.body
60 %5 = load i32, i32* %i, align 4, !dbg !42, !tbaa !28
61 %conv = sext i32 %5 to i64, !dbg !42
62 %6 = load i64, i64* %sum, align 8, !dbg !43, !tbaa !22
63 %sub = sub nsw i64 %6, %conv, !dbg !43
64 store i64 %sub, i64* %sum, align 8, !dbg !43, !tbaa !22
65 br label %if.end, !dbg !44
67 if.else: ; preds = %for.body
68 %7 = load i32, i32* %i, align 4, !dbg !45, !tbaa !28
69 %sub2 = sub nsw i32 0, %7, !dbg !46
70 %call = call i32 @rand() #4, !dbg !47
71 %mul = mul nsw i32 %sub2, %call, !dbg !48
72 %conv3 = sext i32 %mul to i64, !dbg !46
73 %8 = load i64, i64* %sum, align 8, !dbg !49, !tbaa !22
74 %add = add nsw i64 %8, %conv3, !dbg !49
75 store i64 %add, i64* %sum, align 8, !dbg !49, !tbaa !22
78 if.end: ; preds = %if.else, %if.then
79 br label %for.inc, !dbg !50
81 for.inc: ; preds = %if.end
82 %9 = load i32, i32* %i, align 4, !dbg !51, !tbaa !28
83 %inc = add nsw i32 %9, 1, !dbg !51
84 store i32 %inc, i32* %i, align 4, !dbg !51, !tbaa !28
85 br label %for.cond, !dbg !52
87 for.end: ; preds = %for.cond.cleanup
88 %10 = load i64, i64* %sum, align 8, !dbg !53, !tbaa !22
89 %11 = bitcast i64* %sum to i8*, !dbg !54
90 call void @llvm.lifetime.end(i64 8, i8* %11) #4, !dbg !54
94 ; Function Attrs: nounwind argmemonly
95 declare void @llvm.lifetime.start(i64, i8* nocapture) #1
97 ; Function Attrs: nounwind readnone
98 declare void @llvm.dbg.declare(metadata, metadata, metadata) #2
100 ; Function Attrs: nounwind
101 declare i32 @rand() #3
103 ; Function Attrs: nounwind argmemonly
104 declare void @llvm.lifetime.end(i64, i8* nocapture) #1
106 ; Function Attrs: nounwind uwtable
107 define i32 @main() #0 {
109 %retval = alloca i32, align 4
110 store i32 0, i32* %retval, align 4
111 %call = call i64 @_Z3foov(), !dbg !56
112 %cmp = icmp sgt i64 %call, 0, !dbg !57
113 %conv = zext i1 %cmp to i32, !dbg !56
114 ret i32 %conv, !dbg !58
117 attributes #0 = { nounwind uwtable "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2" "unsafe-fp-math"="false" "use-soft-float"="false" }
118 attributes #1 = { nounwind argmemonly }
119 attributes #2 = { nounwind readnone }
120 attributes #3 = { nounwind "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2" "unsafe-fp-math"="false" "use-soft-float"="false" }
121 attributes #4 = { nounwind }
124 !llvm.module.flags = !{!16, !17}
127 !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 3.8.0 (trunk 251041) (llvm/trunk 251053)", isOptimized: true, runtimeVersion: 0, emissionKind: 1, enums: !2, subprograms: !3)
128 !1 = !DIFile(filename: "remarks.cc", directory: ".")
131 !4 = distinct !DISubprogram(name: "foo", linkageName: "_Z3foov", scope: !1, file: !1, line: 3, type: !5, isLocal: false, isDefinition: true, scopeLine: 3, flags: DIFlagPrototyped, isOptimized: true, function: i64 ()* @_Z3foov, variables: !8)
132 !5 = !DISubroutineType(types: !6)
134 !7 = !DIBasicType(name: "long long int", size: 64, align: 64, encoding: DW_ATE_signed)
136 !9 = !DILocalVariable(name: "sum", scope: !4, file: !1, line: 4, type: !7)
137 !10 = !DILocalVariable(name: "i", scope: !11, file: !1, line: 5, type: !12)
138 !11 = distinct !DILexicalBlock(scope: !4, file: !1, line: 5, column: 3)
139 !12 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
140 !13 = distinct !DISubprogram(name: "main", scope: !1, file: !1, line: 13, type: !14, isLocal: false, isDefinition: true, scopeLine: 13, flags: DIFlagPrototyped, isOptimized: true, function: i32 ()* @main, variables: !2)
141 !14 = !DISubroutineType(types: !15)
143 !16 = !{i32 2, !"Dwarf Version", i32 4}
144 !17 = !{i32 2, !"Debug Info Version", i32 3}
145 !18 = !{!"clang version 3.8.0 (trunk 251041) (llvm/trunk 251053)"}
146 !19 = !DILocation(line: 4, column: 3, scope: !4)
147 !20 = !DIExpression()
148 !21 = !DILocation(line: 4, column: 17, scope: !4)
149 !22 = !{!23, !23, i64 0}
150 !23 = !{!"long long", !24, i64 0}
151 !24 = !{!"omnipotent char", !25, i64 0}
152 !25 = !{!"Simple C/C++ TBAA"}
153 !26 = !DILocation(line: 5, column: 8, scope: !11)
154 !27 = !DILocation(line: 5, column: 12, scope: !11)
155 !28 = !{!29, !29, i64 0}
156 !29 = !{!"int", !24, i64 0}
157 !30 = !DILocation(line: 5, column: 19, scope: !31)
158 !31 = !DILexicalBlockFile(scope: !32, file: !1, discriminator: 3)
159 !32 = !DILexicalBlockFile(scope: !33, file: !1, discriminator: 1)
160 !33 = distinct !DILexicalBlock(scope: !11, file: !1, line: 5, column: 3)
161 !34 = !DILocation(line: 5, column: 21, scope: !33)
162 !35 = !DILocation(line: 5, column: 3, scope: !11)
163 !36 = !DILocation(line: 5, column: 3, scope: !37)
164 !37 = !DILexicalBlockFile(scope: !33, file: !1, discriminator: 2)
165 !38 = !DILocation(line: 6, column: 9, scope: !39)
166 !39 = distinct !DILexicalBlock(scope: !33, file: !1, line: 6, column: 9)
167 !40 = !DILocation(line: 6, column: 11, scope: !39)
168 !41 = !DILocation(line: 6, column: 9, scope: !33)
169 !42 = !DILocation(line: 7, column: 14, scope: !39)
170 !43 = !DILocation(line: 7, column: 11, scope: !39)
171 !44 = !DILocation(line: 7, column: 7, scope: !39)
172 !45 = !DILocation(line: 9, column: 15, scope: !39)
173 !46 = !DILocation(line: 9, column: 14, scope: !39)
174 !47 = !DILocation(line: 9, column: 19, scope: !39)
175 !48 = !DILocation(line: 9, column: 17, scope: !39)
176 !49 = !DILocation(line: 9, column: 11, scope: !39)
177 !50 = !DILocation(line: 6, column: 13, scope: !39)
178 !51 = !DILocation(line: 5, column: 35, scope: !33)
179 !52 = !DILocation(line: 5, column: 3, scope: !33)
180 !53 = !DILocation(line: 10, column: 10, scope: !4)
181 !54 = !DILocation(line: 11, column: 1, scope: !4)
182 !55 = !DILocation(line: 10, column: 3, scope: !4)
183 !56 = !DILocation(line: 13, column: 21, scope: !13)
184 !57 = !DILocation(line: 13, column: 27, scope: !13)
185 !58 = !DILocation(line: 13, column: 14, scope: !13)