| blob | b8e106418343ae56e8c7f0290818bf90777addee |
1 ; RUN: opt -S %s -passes=sample-profile -sample-profile-file=%S/Inputs/entry_counts_cold.prof -profile-sample-accurate | FileCheck %s
2 ; ModuleID = 'temp.bc'
3 ; This is a test similar to entry_counts_cold.ll. The key differences are:
4 ; - we want profile-sample-accurate. Normally, that would trigger resetting function entry counts to 0, and then update
5 ; them based on the sample profile (SampleProfile::runOnFunction).
6 ; - we don't have debug info for the function. This means we can't match sample counts in the profile to locations in this function.
7 ; When we attempt to update its profile info (at the end of SampleProfile::runOnModule - llvm::updateProfileCallee), we'll call
8 ; updateProfWeight with a 0 priorEntryCount, which will result in a division by 0.
9 ;
10 ; We're using @bar and the call to @baz.
11 ;
12 ; Currently, the test just ensures opt doesn't ICE
13 source_filename = "temp.c"
14 target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
15 target triple = "x86_64-apple-macosx10.14.0"
17 ; Function Attrs: nounwind ssp uwtable
18 ; CHECK: define i32 @top({{.*}} !prof [[TOP:![0-9]+]]
19 define i32 @top(ptr %p) #0 !dbg !8 {
20 entry:
21 %p.addr = alloca ptr, align 8
22 store ptr %p, ptr %p.addr, align 8, !tbaa !15
23 call void @llvm.dbg.declare(metadata ptr %p.addr, metadata !14, metadata !DIExpression()), !dbg !19
24 %0 = load ptr, ptr %p.addr, align 8, !dbg !20, !tbaa !15
25 %call = call i32 @foo(ptr %0), !dbg !21
26 ; foo is inlined
27 ; CHECK-NOT: call i32 @foo
28 ; CHECK: call i32 @bar
29 %1 = load ptr, ptr %p.addr, align 8, !dbg !22, !tbaa !15
30 %2 = load i32, ptr %1, align 4, !dbg !24, !tbaa !25
31 %tobool = icmp ne i32 %2, 0, !dbg !24
32 br i1 %tobool, label %if.then, label %if.end, !dbg !27
34 if.then: ; preds = %entry
35 %3 = load ptr, ptr %p.addr, align 8, !dbg !28, !tbaa !15
36 ; bar is not inlined
37 ; CHECK: call i32 @bar
38 %call1 = call i32 @bar(ptr %3), !dbg !29
39 br label %if.end, !dbg !29
41 if.end: ; preds = %if.then, %entry
42 ret i32 0, !dbg !30
43 }
45 ; Function Attrs: nounwind readnone speculatable
46 declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
48 ; Function Attrs: nounwind ssp uwtable
49 ; CHECK: define i32 @foo({{.*}} !prof [[FOO:![0-9]+]]
50 define i32 @foo(ptr %p) #0 !dbg !31 {
51 entry:
52 %p.addr = alloca ptr, align 8
53 %a = alloca i32, align 4
54 store ptr %p, ptr %p.addr, align 8, !tbaa !15
55 call void @llvm.dbg.declare(metadata ptr %p.addr, metadata !33, metadata !DIExpression()), !dbg !35
56 call void @llvm.lifetime.start.p0(i64 4, ptr %a) #4, !dbg !36
57 call void @llvm.dbg.declare(metadata ptr %a, metadata !34, metadata !DIExpression()), !dbg !37
58 %0 = load ptr, ptr %p.addr, align 8, !dbg !38, !tbaa !15
59 %arrayidx = getelementptr inbounds i32, ptr %0, i64 3, !dbg !38
60 %1 = load i32, ptr %arrayidx, align 4, !dbg !38, !tbaa !25
61 %2 = load ptr, ptr %p.addr, align 8, !dbg !39, !tbaa !15
62 %arrayidx1 = getelementptr inbounds i32, ptr %2, i64 2, !dbg !39
63 %3 = load i32, ptr %arrayidx1, align 4, !dbg !40, !tbaa !25
64 %add = add nsw i32 %3, %1, !dbg !40
65 store i32 %add, ptr %arrayidx1, align 4, !dbg !40, !tbaa !25
66 %4 = load ptr, ptr %p.addr, align 8, !dbg !41, !tbaa !15
67 %call = call i32 @bar(ptr %4), !dbg !42
68 store i32 %call, ptr %a, align 4, !dbg !43, !tbaa !25
69 %5 = load i32, ptr %a, align 4, !dbg !44, !tbaa !25
70 %add2 = add nsw i32 %5, 1, !dbg !45
71 call void @llvm.lifetime.end.p0(i64 4, ptr %a) #4, !dbg !46
72 ret i32 %add2, !dbg !47
73 }
75 ; Function Attrs: nounwind ssp uwtable
76 ; CHECK: define i32 @bar(ptr %p) #0 !prof [[BAR:![0-9]+]] {
77 define i32 @bar(ptr %p) #0 {
78 entry:
79 %p.addr = alloca ptr, align 8
80 store ptr %p, ptr %p.addr, align 8, !tbaa !15
81 call void @llvm.dbg.declare(metadata ptr %p.addr, metadata !50, metadata !DIExpression()), !dbg !51
82 ; CHECK: call void (...) @baz(), !dbg !{{[0-9]+}}
83 call void (...) @baz(), !dbg !52, !prof !100
84 %0 = load ptr, ptr %p.addr, align 8, !dbg !53, !tbaa !15
85 %arrayidx = getelementptr inbounds i32, ptr %0, i64 2, !dbg !53
86 %1 = load i32, ptr %arrayidx, align 4, !dbg !53, !tbaa !25
87 %2 = load ptr, ptr %p.addr, align 8, !dbg !54, !tbaa !15
88 %arrayidx1 = getelementptr inbounds i32, ptr %2, i64 1, !dbg !54
89 %3 = load i32, ptr %arrayidx1, align 4, !dbg !55, !tbaa !25
90 %add = add nsw i32 %3, %1, !dbg !55
91 store i32 %add, ptr %arrayidx1, align 4, !dbg !55, !tbaa !25
92 %4 = load ptr, ptr %p.addr, align 8, !dbg !56, !tbaa !15
93 %arrayidx2 = getelementptr inbounds i32, ptr %4, i64 3, !dbg !56
94 %5 = load i32, ptr %arrayidx2, align 4, !dbg !56, !tbaa !25
95 ret i32 %5, !dbg !57
96 }
98 ; Function Attrs: argmemonly nounwind
99 declare void @llvm.lifetime.start.p0(i64, ptr nocapture) #2
101 ; Function Attrs: argmemonly nounwind
102 declare void @llvm.lifetime.end.p0(i64, ptr nocapture) #2
104 declare void @baz(...) #3
106 attributes #0 = { nounwind ssp uwtable "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "min-legal-vector-width"="0" "frame-pointer"="all" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="penryn" "target-features"="+cx16,+fxsr,+mmx,+sahf,+sse,+sse2,+sse3,+sse4.1,+ssse3,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" "use-sample-profile" }
107 attributes #1 = { nounwind readnone speculatable }
108 attributes #2 = { argmemonly nounwind }
109 attributes #3 = { "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="all" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="penryn" "target-features"="+cx16,+fxsr,+mmx,+sahf,+sse,+sse2,+sse3,+sse4.1,+ssse3,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
110 attributes #4 = { nounwind }
112 !llvm.dbg.cu = !{!0}
113 !llvm.module.flags = !{!3, !4, !5, !6}
114 !llvm.ident = !{!7}
116 ; CHECK: [[TOP]] = !{!"function_entry_count", i64 101}
117 ; CHECK: [[FOO]] = !{!"function_entry_count", i64 151}
119 !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 8.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, nameTableKind: GNU)
120 !1 = !DIFile(filename: "temp.c", directory: "llvm/test/Transforms/SampleProfile")
121 !2 = !{}
122 !3 = !{i32 2, !"Dwarf Version", i32 4}
123 !4 = !{i32 2, !"Debug Info Version", i32 3}
124 !5 = !{i32 1, !"wchar_size", i32 4}
125 !6 = !{i32 7, !"PIC Level", i32 2}
126 !7 = !{!"clang version 8.0.0"}
127 !8 = distinct !DISubprogram(name: "top", scope: !1, file: !1, line: 5, type: !9, scopeLine: 5, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !13)
128 !9 = !DISubroutineType(types: !10)
129 !10 = !{!11, !12}
130 !11 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
131 !12 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !11, size: 64)
132 !13 = !{!14}
133 !14 = !DILocalVariable(name: "p", arg: 1, scope: !8, file: !1, line: 5, type: !12)
134 !15 = !{!16, !16, i64 0}
135 !16 = !{!"any pointer", !17, i64 0}
136 !17 = !{!"omnipotent char", !18, i64 0}
137 !18 = !{!"Simple C/C++ TBAA"}
138 !19 = !DILocation(line: 5, column: 14, scope: !8)
139 !20 = !DILocation(line: 6, column: 7, scope: !8)
140 !21 = !DILocation(line: 6, column: 3, scope: !8)
141 !22 = !DILocation(line: 7, column: 8, scope: !23)
142 !23 = distinct !DILexicalBlock(scope: !8, file: !1, line: 7, column: 7)
143 !24 = !DILocation(line: 7, column: 7, scope: !23)
144 !25 = !{!26, !26, i64 0}
145 !26 = !{!"int", !17, i64 0}
146 !27 = !DILocation(line: 7, column: 7, scope: !8)
147 !28 = !DILocation(line: 8, column: 9, scope: !23)
148 !29 = !DILocation(line: 8, column: 5, scope: !23)
149 !30 = !DILocation(line: 9, column: 3, scope: !8)
150 !31 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 12, type: !9, scopeLine: 12, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !32)
151 !32 = !{!33, !34}
152 !33 = !DILocalVariable(name: "p", arg: 1, scope: !31, file: !1, line: 12, type: !12)
153 !34 = !DILocalVariable(name: "a", scope: !31, file: !1, line: 13, type: !11)
154 !35 = !DILocation(line: 12, column: 14, scope: !31)
155 !36 = !DILocation(line: 13, column: 3, scope: !31)
156 !37 = !DILocation(line: 13, column: 7, scope: !31)
157 !38 = !DILocation(line: 14, column: 11, scope: !31)
158 !39 = !DILocation(line: 14, column: 3, scope: !31)
159 !40 = !DILocation(line: 14, column: 8, scope: !31)
160 !41 = !DILocation(line: 15, column: 11, scope: !31)
161 !42 = !DILocation(line: 15, column: 7, scope: !31)
162 !43 = !DILocation(line: 15, column: 5, scope: !31)
163 !44 = !DILocation(line: 16, column: 10, scope: !31)
164 !45 = !DILocation(line: 16, column: 11, scope: !31)
165 !46 = !DILocation(line: 17, column: 1, scope: !31)
166 !47 = !DILocation(line: 16, column: 3, scope: !31)
167 !48 = distinct !DISubprogram(name: "bar", scope: !1, file: !1, line: 19, type: !9, scopeLine: 19, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !49)
168 !49 = !{!50}
169 !50 = !DILocalVariable(name: "p", arg: 1, scope: !48, file: !1, line: 19, type: !12)
170 !51 = !DILocation(line: 19, column: 15, scope: !48)
171 !52 = !DILocation(line: 20, column: 3, scope: !48)
172 !53 = !DILocation(line: 21, column: 11, scope: !48)
173 !54 = !DILocation(line: 21, column: 3, scope: !48)
174 !55 = !DILocation(line: 21, column: 8, scope: !48)
175 !56 = !DILocation(line: 22, column: 10, scope: !48)
176 !57 = !DILocation(line: 22, column: 3, scope: !48)
177 !100 = !{!"branch_weights", i32 5}