1; RUN: opt < %s -sample-profile -sample-profile-file=%S/Inputs/remarks.prof -S -pass-remarks=sample-profile -pass-remarks-output=%t.opt.yaml 2>&1 | FileCheck %s
2; RUN: FileCheck %s -check-prefixes=YAML,YAML-NO-ANNOTATE < %t.opt.yaml
3; RUN: opt < %s -passes=sample-profile -sample-profile-file=%S/Inputs/remarks.prof -S -pass-remarks=sample-profile -pass-remarks-output=%t.opt.yaml 2>&1 | FileCheck %s
4; RUN: FileCheck %s -check-prefixes=YAML,YAML-NO-ANNOTATE < %t.opt.yaml
5
6; RUN: opt < %s -sample-profile -annotate-sample-profile-inline-phase -sample-profile-file=%S/Inputs/remarks.prof -S -pass-remarks=sample-profile -pass-remarks-output=%t.opt.yaml 2>&1 | FileCheck %s
7; RUN: FileCheck %s -check-prefixes=YAML,YAML-ANNOTATE < %t.opt.yaml
8; RUN: opt < %s -passes=sample-profile -annotate-sample-profile-inline-phase -sample-profile-file=%S/Inputs/remarks.prof -S -pass-remarks=sample-profile -pass-remarks-output=%t.opt.yaml 2>&1 | FileCheck %s
9; RUN: FileCheck %s -check-prefixes=YAML,YAML-ANNOTATE < %t.opt.yaml
10
11; Original test case.
12;
13;     1    #include <stdlib.h>
14;     2
15;     3    long long foo() {
16;     4      long long int sum = 0;
17;     5      for (int i = 0; i < 500000000; i++)
18;     6        if (i < 1000)
19;     7          sum -= i;
20;     8        else
21;     9          sum += -i * rand();
22;    10      return sum;
23;    11    }
24;    12
25;    13    int main() { return foo() > 0; }
26
27; We are expecting foo() to be inlined in main() (almost all the cycles are
28; spent inside foo).
29; CHECK: remark: remarks.cc:13:21: '_Z3foov' inlined into 'main' to match profiling context with (cost=130, threshold=2147483647) at callsite main:0:21;
30; CHECK: remark: remarks.cc:9:19: 'rand' inlined into 'main' to match profiling context with (cost=always): always inline attribute at callsite _Z3foov:6:19 @ main:0:21;
31
32; The back edge for the loop is the hottest edge in the loop subgraph.
33; CHECK: remark: remarks.cc:6:9: most popular destination for conditional branches at remarks.cc:5:3
34
35; The predicate almost always chooses the 'else' branch.
36; CHECK: remark: remarks.cc:9:15: most popular destination for conditional branches at remarks.cc:6:9
37
38; Checking to see if YAML file is generated and contains remarks
39;YAML:       --- !Passed
40;YAML-NO-ANNOTATE-NEXT:  Pass:            sample-profile-inline
41;YAML-ANNOTATE-NEXT:  Pass:            main-sample-profile-inline
42;YAML-NEXT:  Name:            Inlined
43;YAML-NEXT:  DebugLoc:        { File: remarks.cc, Line: 13, Column: 21 }
44;YAML-NEXT:  Function:        main
45;YAML-NEXT:  Args:
46;YAML-NEXT:    - String:          ''''
47;YAML-NEXT:    - Callee:          _Z3foov
48;YAML-NEXT:      DebugLoc:        { File: remarks.cc, Line: 3, Column: 0 }
49;YAML-NEXT:    - String:          ''' inlined into '
50;YAML-NEXT:    - Caller:          main
51;YAML-NEXT:        DebugLoc:        { File: remarks.cc, Line: 13, Column: 0 }
52;YAML-NEXT:    - String:          ''''
53;YAML-NEXT:    - String:          ' to match profiling context'
54;YAML-NEXT:    - String:          ' with '
55;YAML-NEXT:    - String:          '(cost='
56;YAML-NEXT:    - Cost:            '130'
57;YAML-NEXT:    - String:          ', threshold='
58;YAML-NEXT:    - Threshold:       '2147483647'
59;YAML-NEXT:    - String:          ')'
60;YAML-NEXT:    - String:          ' at callsite '
61;YAML-NEXT:    - String:          main
62;YAML-NEXT:    - String:          ':'
63;YAML-NEXT:    - Line:            '0'
64;YAML-NEXT:    - String:          ':'
65;YAML-NEXT:    - Column:          '21'
66;YAML-NEXT:    - String:          ';'
67;YAML-NEXT:  ...
68;YAML:       --- !Passed
69;YAML-NO-ANNOTATE-NEXT:  Pass:            sample-profile-inline
70;YAML-ANNOTATE-NEXT:  Pass:            main-sample-profile-inline
71;YAML-NEXT:  Name:            AlwaysInline
72;YAML-NEXT:  DebugLoc:        { File: remarks.cc, Line: 9, Column: 19 }
73;YAML-NEXT:  Function:        main
74;YAML-NEXT:  Args:
75;YAML-NEXT:    - String:          ''''
76;YAML-NEXT:    - Callee:          rand
77;YAML-NEXT:      DebugLoc:        { File: remarks.cc, Line: 90, Column: 0 }
78;YAML-NEXT:    - String:          ''' inlined into '''
79;YAML-NEXT:    - Caller:          main
80;YAML-NEXT:      DebugLoc:        { File: remarks.cc, Line: 13, Column: 0 }
81;YAML-NEXT:    - String:          ''''
82;YAML-NEXT:    - String:          ' to match profiling context'
83;YAML-NEXT:    - String:          ' with '
84;YAML-NEXT:    - String:          '(cost=always)'
85;YAML-NEXT:    - String:          ': '
86;YAML-NEXT:    - Reason:          always inline attribute
87;YAML-NEXT:    - String:          ' at callsite '
88;YAML-NEXT:    - String:          _Z3foov
89;YAML-NEXT:    - String:          ':'
90;YAML-NEXT:    - Line:            '6'
91;YAML-NEXT:    - String:          ':'
92;YAML-NEXT:    - Column:          '19'
93;YAML-NEXT:    - String:          ' @ '
94;YAML-NEXT:    - String:          main
95;YAML-NEXT:    - String:          ':'
96;YAML-NEXT:    - Line:            '0'
97;YAML-NEXT:    - String:          ':'
98;YAML-NEXT:    - Column:          '21'
99;YAML-NEXT:    - String:          ';'
100;YAML:  --- !Analysis
101;YAML-NEXT:  Pass:            sample-profile
102;YAML-NEXT:  Name:            AppliedSamples
103;YAML-NEXT:  DebugLoc:        { File: remarks.cc, Line: 5, Column: 8 }
104;YAML-NEXT:  Function:        main
105;YAML-NEXT:  Args:
106;YAML-NEXT:    - String:          'Applied '
107;YAML-NEXT:    - NumSamples:      '18305'
108;YAML-NEXT:    - String:          ' samples from profile (offset: '
109;YAML-NEXT:    - LineOffset:      '2'
110;YAML-NEXT:    - String:          ')'
111;YAML-NEXT:  ...
112;YAML:  --- !Passed
113;YAML-NEXT:  Pass:            sample-profile
114;YAML-NEXT:  Name:            PopularDest
115;YAML-NEXT:  DebugLoc:        { File: remarks.cc, Line: 6, Column: 9 }
116;YAML-NEXT:  Function:        main
117;YAML-NEXT:  Args:
118;YAML-NEXT:    - String:          'most popular destination for conditional branches at '
119;YAML-NEXT:    - CondBranchesLoc: 'remarks.cc:5:3'
120;YAML-NEXT:      DebugLoc:        { File: remarks.cc, Line: 5, Column: 3 }
121;YAML-NEXT:  ...
122
123; Function Attrs: nounwind uwtable
124define i64 @_Z3foov() #0 !dbg !4 {
125entry:
126  %sum = alloca i64, align 8
127  %i = alloca i32, align 4
128  %0 = bitcast i64* %sum to i8*, !dbg !19
129  call void @llvm.lifetime.start.p0i8(i64 8, i8* %0) #4, !dbg !19
130  call void @llvm.dbg.declare(metadata i64* %sum, metadata !9, metadata !20), !dbg !21
131  store i64 0, i64* %sum, align 8, !dbg !21, !tbaa !22
132  %1 = bitcast i32* %i to i8*, !dbg !26
133  call void @llvm.lifetime.start.p0i8(i64 4, i8* %1) #4, !dbg !26
134  call void @llvm.dbg.declare(metadata i32* %i, metadata !10, metadata !20), !dbg !27
135  store i32 0, i32* %i, align 4, !dbg !27, !tbaa !28
136  br label %for.cond, !dbg !26
137
138for.cond:                                         ; preds = %for.inc, %entry
139  %2 = load i32, i32* %i, align 4, !dbg !30, !tbaa !28
140  %cmp = icmp slt i32 %2, 500000000, !dbg !34
141  br i1 %cmp, label %for.body, label %for.cond.cleanup, !dbg !35
142
143for.cond.cleanup:                                 ; preds = %for.cond
144  %3 = bitcast i32* %i to i8*, !dbg !36
145  call void @llvm.lifetime.end.p0i8(i64 4, i8* %3) #4, !dbg !36
146  br label %for.end
147
148for.body:                                         ; preds = %for.cond
149  %4 = load i32, i32* %i, align 4, !dbg !38, !tbaa !28
150  %cmp1 = icmp slt i32 %4, 1000, !dbg !40
151  br i1 %cmp1, label %if.then, label %if.else, !dbg !41
152
153if.then:                                          ; preds = %for.body
154  %5 = load i32, i32* %i, align 4, !dbg !42, !tbaa !28
155  %conv = sext i32 %5 to i64, !dbg !42
156  %6 = load i64, i64* %sum, align 8, !dbg !43, !tbaa !22
157  %sub = sub nsw i64 %6, %conv, !dbg !43
158  store i64 %sub, i64* %sum, align 8, !dbg !43, !tbaa !22
159  br label %if.end, !dbg !44
160
161if.else:                                          ; preds = %for.body
162  %7 = load i32, i32* %i, align 4, !dbg !45, !tbaa !28
163  %sub2 = sub nsw i32 0, %7, !dbg !46
164  %call = call i32 @rand() #4, !dbg !47
165  %mul = mul nsw i32 %sub2, %call, !dbg !48
166  %conv3 = sext i32 %mul to i64, !dbg !46
167  %8 = load i64, i64* %sum, align 8, !dbg !49, !tbaa !22
168  %add = add nsw i64 %8, %conv3, !dbg !49
169  store i64 %add, i64* %sum, align 8, !dbg !49, !tbaa !22
170  br label %if.end
171
172if.end:                                           ; preds = %if.else, %if.then
173  br label %for.inc, !dbg !50
174
175for.inc:                                          ; preds = %if.end
176  %9 = load i32, i32* %i, align 4, !dbg !51, !tbaa !28
177  %inc = add nsw i32 %9, 1, !dbg !51
178  store i32 %inc, i32* %i, align 4, !dbg !51, !tbaa !28
179  br label %for.cond, !dbg !52
180
181for.end:                                          ; preds = %for.cond.cleanup
182  %10 = load i64, i64* %sum, align 8, !dbg !53, !tbaa !22
183  %11 = bitcast i64* %sum to i8*, !dbg !54
184  call void @llvm.lifetime.end.p0i8(i64 8, i8* %11) #4, !dbg !54
185  ret i64 %10, !dbg !55
186}
187
188; Function Attrs: nounwind argmemonly
189declare void @llvm.lifetime.start.p0i8(i64, i8* nocapture) #1
190
191; Function Attrs: nounwind readnone
192declare void @llvm.dbg.declare(metadata, metadata, metadata) #2
193
194; Function Attrs: nounwind
195define i32 @rand() #3 !dbg !59 {
196  ret i32 1
197}
198
199; Function Attrs: nounwind argmemonly
200declare void @llvm.lifetime.end.p0i8(i64, i8* nocapture) #1
201
202; Function Attrs: nounwind uwtable
203define i32 @main() #0 !dbg !13 {
204entry:
205  %retval = alloca i32, align 4
206  store i32 0, i32* %retval, align 4
207  %call = call i64 @_Z3foov(), !dbg !56
208  %cmp = icmp sgt i64 %call, 0, !dbg !57
209  %conv = zext i1 %cmp to i32, !dbg !56
210  ret i32 %conv, !dbg !58
211}
212
213attributes #0 = { nounwind uwtable "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="none" "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" "use-sample-profile" }
214attributes #1 = { nounwind argmemonly }
215attributes #2 = { nounwind readnone }
216attributes #3 = { nounwind alwaysinline "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="none" "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" }
217attributes #4 = { nounwind }
218
219!llvm.dbg.cu = !{!0}
220!llvm.module.flags = !{!16, !17}
221!llvm.ident = !{!18}
222
223!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: NoDebug, enums: !2)
224!1 = !DIFile(filename: "remarks.cc", directory: ".")
225!2 = !{}
226!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, unit: !0, retainedNodes: !8)
227!5 = !DISubroutineType(types: !6)
228!6 = !{!7}
229!7 = !DIBasicType(name: "long long int", size: 64, align: 64, encoding: DW_ATE_signed)
230!8 = !{!9, !10}
231!9 = !DILocalVariable(name: "sum", scope: !4, file: !1, line: 4, type: !7)
232!10 = !DILocalVariable(name: "i", scope: !11, file: !1, line: 5, type: !12)
233!11 = distinct !DILexicalBlock(scope: !4, file: !1, line: 5, column: 3)
234!12 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
235!13 = distinct !DISubprogram(name: "main", scope: !1, file: !1, line: 13, type: !14, isLocal: false, isDefinition: true, scopeLine: 13, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !2)
236!14 = !DISubroutineType(types: !15)
237!15 = !{!12}
238!16 = !{i32 2, !"Dwarf Version", i32 4}
239!17 = !{i32 2, !"Debug Info Version", i32 3}
240!18 = !{!"clang version 3.8.0 (trunk 251041) (llvm/trunk 251053)"}
241!19 = !DILocation(line: 4, column: 3, scope: !4)
242!20 = !DIExpression()
243!21 = !DILocation(line: 4, column: 17, scope: !4)
244!22 = !{!23, !23, i64 0}
245!23 = !{!"long long", !24, i64 0}
246!24 = !{!"omnipotent char", !25, i64 0}
247!25 = !{!"Simple C/C++ TBAA"}
248!26 = !DILocation(line: 5, column: 8, scope: !11)
249!27 = !DILocation(line: 5, column: 12, scope: !11)
250!28 = !{!29, !29, i64 0}
251!29 = !{!"int", !24, i64 0}
252!30 = !DILocation(line: 5, column: 19, scope: !31)
253!31 = !DILexicalBlockFile(scope: !32, file: !1, discriminator: 3)
254!32 = !DILexicalBlockFile(scope: !33, file: !1, discriminator: 1)
255!33 = distinct !DILexicalBlock(scope: !11, file: !1, line: 5, column: 3)
256!34 = !DILocation(line: 5, column: 21, scope: !33)
257!35 = !DILocation(line: 5, column: 3, scope: !11)
258!36 = !DILocation(line: 5, column: 3, scope: !37)
259!37 = !DILexicalBlockFile(scope: !33, file: !1, discriminator: 2)
260!38 = !DILocation(line: 6, column: 9, scope: !39)
261!39 = distinct !DILexicalBlock(scope: !33, file: !1, line: 6, column: 9)
262!40 = !DILocation(line: 6, column: 11, scope: !39)
263!41 = !DILocation(line: 6, column: 9, scope: !33)
264!42 = !DILocation(line: 7, column: 14, scope: !39)
265!43 = !DILocation(line: 7, column: 11, scope: !39)
266!44 = !DILocation(line: 7, column: 7, scope: !39)
267!45 = !DILocation(line: 9, column: 15, scope: !39)
268!46 = !DILocation(line: 9, column: 14, scope: !39)
269!47 = !DILocation(line: 9, column: 19, scope: !39)
270!48 = !DILocation(line: 9, column: 17, scope: !39)
271!49 = !DILocation(line: 9, column: 11, scope: !39)
272!50 = !DILocation(line: 6, column: 13, scope: !39)
273!51 = !DILocation(line: 5, column: 35, scope: !33)
274!52 = !DILocation(line: 5, column: 3, scope: !33)
275!53 = !DILocation(line: 10, column: 10, scope: !4)
276!54 = !DILocation(line: 11, column: 1, scope: !4)
277!55 = !DILocation(line: 10, column: 3, scope: !4)
278!56 = !DILocation(line: 13, column: 21, scope: !13)
279!57 = !DILocation(line: 13, column: 27, scope: !13)
280!58 = !DILocation(line: 13, column: 14, scope: !13)
281!59 = distinct !DISubprogram(name: "rand", linkageName: "rand", scope: !1, file: !1, line: 90, type: !5, isLocal: false, isDefinition: true, scopeLine: 90, flags: DIFlagPrototyped, isOptimized: true, unit: !0)
282