1 ; Tests whether resume function would remain dbg.value infomation.
2 ; RUN: opt < %s -passes='function(coro-early),cgscc(coro-split,coro-split)' -S | FileCheck %s
4 ; This file is based on coro-debug-frame-variable.ll.
5 ; CHECK: define internal fastcc void @f.resume(%f.Frame* noalias nonnull align 16 dereferenceable(80) %FramePtr) !dbg ![[RESUME_FN_DBG_NUM:[0-9]+]]
7 ; CHECK: call void @llvm.dbg.value(metadata %f.Frame** %FramePtr.debug, metadata ![[XVAR_RESUME:[0-9]+]],
9 ; CHECK: call void @llvm.dbg.value(metadata %f.Frame** %FramePtr.debug, metadata ![[SPILL_RESUME:[0-9]+]]
10 ; CHECK: call void @llvm.dbg.value(metadata %f.Frame** %FramePtr.debug, metadata ![[IVAR_RESUME:[0-9]+]], metadata !DIExpression(
11 ; CHECK: call void @llvm.dbg.value(metadata %f.Frame** %FramePtr.debug, metadata ![[JVAR_RESUME:[0-9]+]], metadata !DIExpression(
13 ; CHECK: ![[RESUME_FN_DBG_NUM]] = distinct !DISubprogram(name: "foo", linkageName: "_Z3foov"
14 ; CHECK: ![[IVAR_RESUME]] = !DILocalVariable(name: "i"
15 ; CHECK: ![[XVAR_RESUME]] = !DILocalVariable(name: "x"
16 ; CHECK: ![[JVAR_RESUME]] = !DILocalVariable(name: "j"
17 ; CHECK: ![[SPILL_RESUME]] = !DILocalVariable(name: "produced"
19 source_filename = "../llvm/test/Transforms/Coroutines/coro-debug-dbg.values-O2.ll"
20 declare void @consume(i32)
22 define void @f(i32 %i, i32 %j) !dbg !8 {
24 %__promise = alloca i8, align 8
25 %x = alloca [10 x i32], align 16
26 %produced = call i32 @value_producer()
27 %id = call token @llvm.coro.id(i32 16, i8* %__promise, i8* null, i8* null)
28 %alloc = call i1 @llvm.coro.alloc(token %id)
29 br i1 %alloc, label %coro.alloc, label %coro.init
31 coro.alloc: ; preds = %entry
32 %size = call i64 @llvm.coro.size.i64()
33 %memory = call i8* @new(i64 %size)
36 coro.init: ; preds = %coro.alloc, %entry
37 %phi.entry.alloc = phi i8* [ null, %entry ], [ %memory, %coro.alloc ]
38 %begin = call i8* @llvm.coro.begin(token %id, i8* %phi.entry.alloc)
39 %ready = call i1 @await_ready()
40 br i1 %ready, label %init.ready, label %init.suspend
42 init.suspend: ; preds = %coro.init
43 %save = call token @llvm.coro.save(i8* null)
44 call void @await_suspend()
45 %suspend = call i8 @llvm.coro.suspend(token %save, i1 false)
46 switch i8 %suspend, label %coro.ret [
47 i8 0, label %init.ready
48 i8 1, label %init.cleanup
51 init.cleanup: ; preds = %init.suspend
54 init.ready: ; preds = %init.suspend, %coro.init
55 call void @await_resume()
56 call void @llvm.dbg.value(metadata i32 0, metadata !6, metadata !DIExpression()), !dbg !11
57 %i.init.ready.inc = add nsw i32 0, 1
58 call void @llvm.dbg.value(metadata i32 %i.init.ready.inc, metadata !6, metadata !DIExpression()), !dbg !11
59 call void @llvm.dbg.value(metadata [10 x i32]* %x, metadata !12, metadata !DIExpression()), !dbg !17
60 %memset = bitcast [10 x i32]* %x to i8*, !dbg !17
61 call void @llvm.memset.p0i8.i64(i8* align 16 %memset, i8 0, i64 40, i1 false), !dbg !17
62 call void @print(i32 %i.init.ready.inc)
63 %ready.again = call zeroext i1 @await_ready()
64 br i1 %ready.again, label %await.ready, label %await.suspend
66 await.suspend: ; preds = %init.ready
67 %save.again = call token @llvm.coro.save(i8* null)
68 %from.address = call i8* @from_address(i8* %begin)
69 call void @await_suspend()
70 %suspend.again = call i8 @llvm.coro.suspend(token %save.again, i1 false)
71 switch i8 %suspend.again, label %coro.ret [
72 i8 0, label %await.ready
73 i8 1, label %await.cleanup
76 await.cleanup: ; preds = %await.suspend
79 await.ready: ; preds = %await.suspend, %init.ready
80 call void @await_resume()
81 call void @llvm.dbg.value(metadata i32 0, metadata !18, metadata !DIExpression()), !dbg !11
82 %arrayidx0 = getelementptr inbounds [10 x i32], [10 x i32]* %x, i64 0, i64 0, !dbg !19
83 store i32 1, i32* %arrayidx0, align 16, !dbg !20
84 %arrayidx1 = getelementptr inbounds [10 x i32], [10 x i32]* %x, i64 0, i64 1, !dbg !21
85 store i32 2, i32* %arrayidx1, align 4, !dbg !22
86 %i.await.ready.inc = add nsw i32 %i.init.ready.inc, 1
87 call void @consume(i32 %produced)
88 call void @consume(i32 %i)
89 call void @consume(i32 %j)
90 call void @llvm.dbg.value(metadata i32 %produced, metadata !23, metadata !DIExpression()), !dbg !11
91 call void @llvm.dbg.value(metadata i32 %i, metadata !6, metadata !DIExpression()), !dbg !11
92 call void @llvm.dbg.value(metadata i32 %j, metadata !18, metadata !DIExpression()), !dbg !11
93 call void @print(i32 %i.await.ready.inc)
94 call void @return_void()
97 coro.final: ; preds = %await.ready
98 call void @final_suspend()
99 %coro.final.await_ready = call i1 @await_ready()
100 br i1 %coro.final.await_ready, label %final.ready, label %final.suspend
102 final.suspend: ; preds = %coro.final
103 %final.suspend.coro.save = call token @llvm.coro.save(i8* null)
104 %final.suspend.from_address = call i8* @from_address(i8* %begin)
105 call void @await_suspend()
106 %final.suspend.coro.suspend = call i8 @llvm.coro.suspend(token %final.suspend.coro.save, i1 true)
107 switch i8 %final.suspend.coro.suspend, label %coro.ret [
108 i8 0, label %final.ready
109 i8 1, label %final.cleanup
112 final.cleanup: ; preds = %final.suspend
115 final.ready: ; preds = %final.suspend, %coro.final
116 call void @await_resume()
119 cleanup: ; preds = %final.ready, %final.cleanup, %await.cleanup, %init.cleanup
120 %cleanup.dest.slot.0 = phi i32 [ 0, %final.ready ], [ 2, %final.cleanup ], [ 2, %await.cleanup ], [ 2, %init.cleanup ]
121 %free.memory = call i8* @llvm.coro.free(token %id, i8* %begin)
122 %free = icmp ne i8* %free.memory, null
123 br i1 %free, label %coro.free, label %after.coro.free
125 coro.free: ; preds = %cleanup
126 call void @delete(i8* %free.memory)
127 br label %after.coro.free
129 after.coro.free: ; preds = %coro.free, %cleanup
130 switch i32 %cleanup.dest.slot.0, label %unreachable [
131 i32 0, label %cleanup.cont
132 i32 2, label %coro.ret
135 cleanup.cont: ; preds = %after.coro.free
138 coro.ret: ; preds = %cleanup.cont, %after.coro.free, %final.suspend, %await.suspend, %init.suspend
139 %end = call i1 @llvm.coro.end(i8* null, i1 false)
142 unreachable: ; preds = %after.coro.free
146 ; Function Attrs: nofree nosync nounwind readnone speculatable willreturn
147 declare void @llvm.dbg.declare(metadata, metadata, metadata) #0
149 ; Function Attrs: argmemonly nounwind readonly
150 declare token @llvm.coro.id(i32, i8* readnone, i8* nocapture readonly, i8*) #1
152 ; Function Attrs: nounwind
153 declare i1 @llvm.coro.alloc(token) #2
155 ; Function Attrs: nounwind readnone
156 declare i64 @llvm.coro.size.i64() #3
158 ; Function Attrs: nounwind
159 declare token @llvm.coro.save(i8*) #2
161 ; Function Attrs: nounwind
162 declare i8* @llvm.coro.begin(token, i8* writeonly) #2
164 ; Function Attrs: nounwind
165 declare i8 @llvm.coro.suspend(token, i1) #2
167 ; Function Attrs: argmemonly nounwind readonly
168 declare i8* @llvm.coro.free(token, i8* nocapture readonly) #1
170 ; Function Attrs: nounwind
171 declare i1 @llvm.coro.end(i8*, i1) #2
173 declare i8* @new(i64)
175 declare void @delete(i8*)
177 declare i1 @await_ready()
179 declare void @await_suspend()
181 declare void @await_resume()
183 declare void @print(i32)
185 declare i8* @from_address(i8*)
187 declare void @return_void()
189 declare void @final_suspend()
191 declare i32 @value_producer()
193 ; Function Attrs: argmemonly nofree nosync nounwind willreturn writeonly
194 declare void @llvm.memset.p0i8.i64(i8* nocapture writeonly, i8, i64, i1 immarg) #4
196 ; Function Attrs: nofree nosync nounwind readnone speculatable willreturn
197 declare void @llvm.dbg.value(metadata, metadata, metadata) #0
199 attributes #0 = { nofree nosync nounwind readnone speculatable willreturn }
200 attributes #1 = { argmemonly nounwind readonly }
201 attributes #2 = { nounwind }
202 attributes #3 = { nounwind readnone }
203 attributes #4 = { argmemonly nofree nosync nounwind willreturn writeonly }
206 !llvm.linker.options = !{}
207 !llvm.module.flags = !{!3, !4}
210 !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !1, producer: "clang version 11.0.0", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !2, splitDebugInlining: false, nameTableKind: None)
211 !1 = !DIFile(filename: "repro.cpp", directory: ".")
213 !3 = !{i32 7, !"Dwarf Version", i32 4}
214 !4 = !{i32 2, !"Debug Info Version", i32 3}
215 !5 = !{!"clang version 11.0.0"}
216 !6 = !DILocalVariable(name: "i", scope: !7, file: !1, line: 24, type: !10)
217 !7 = distinct !DILexicalBlock(scope: !8, file: !1, line: 23, column: 12)
218 !8 = distinct !DISubprogram(name: "foo", linkageName: "_Z3foov", scope: !1, file: !1, line: 23, type: !9, scopeLine: 23, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !2)
219 !9 = !DISubroutineType(types: !2)
220 !10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
221 !11 = !DILocation(line: 0, scope: !7)
222 !12 = !DILocalVariable(name: "x", scope: !13, file: !1, line: 34, type: !14)
223 !13 = distinct !DILexicalBlock(scope: !8, file: !1, line: 23, column: 12)
224 !14 = !DICompositeType(tag: DW_TAG_array_type, baseType: !10, size: 320, elements: !15)
226 !16 = !DISubrange(count: 10)
227 !17 = !DILocation(line: 24, column: 7, scope: !7)
228 !18 = !DILocalVariable(name: "j", scope: !7, file: !1, line: 32, type: !10)
229 !19 = !DILocation(line: 42, column: 3, scope: !7)
230 !20 = !DILocation(line: 42, column: 8, scope: !7)
231 !21 = !DILocation(line: 43, column: 3, scope: !7)
232 !22 = !DILocation(line: 43, column: 8, scope: !7)
233 !23 = !DILocalVariable(name: "produced", scope: !7, file: !1, line:24, type: !10)