1 ; Tests that debug information is sane after coro-split
2 ; RUN: opt < %s -passes='cgscc(coro-split),simplifycfg,early-cse' -S | FileCheck %s
3 ; RUN: opt --try-experimental-debuginfo-iterators < %s -passes='cgscc(coro-split),simplifycfg,early-cse' -S | FileCheck %s
5 source_filename = "simple-repro.c"
6 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
7 target triple = "x86_64-unknown-linux-gnu"
9 ; Function Attrs: noinline nounwind
10 define ptr @f(i32 %x) #0 personality i32 0 !dbg !6 {
12 %x.addr = alloca i32, align 4
13 %coro_hdl = alloca ptr, align 8
14 store i32 %x, ptr %x.addr, align 4
15 %0 = call token @llvm.coro.id(i32 0, ptr null, ptr @f, ptr null), !dbg !16
16 %1 = call i64 @llvm.coro.size.i64(), !dbg !16
17 %call = call ptr @malloc(i64 %1), !dbg !16
18 %2 = call ptr @llvm.coro.begin(token %0, ptr %call) #7, !dbg !16
19 store ptr %2, ptr %coro_hdl, align 8, !dbg !16
20 %3 = call i8 @llvm.coro.suspend(token none, i1 false), !dbg !17
21 %conv = sext i8 %3 to i32, !dbg !17
22 %late_local = alloca i32, align 4
23 call void @coro.devirt.trigger(ptr null)
24 switch i32 %conv, label %sw.default [
29 sw.bb: ; preds = %entry
30 %direct = load i32, ptr %x.addr, align 4, !dbg !14
31 %gep = getelementptr inbounds [16 x i8], ptr undef, i32 %direct, !dbg !14
32 call void @llvm.dbg.declare(metadata ptr %gep, metadata !27, metadata !13), !dbg !14
33 call void @llvm.dbg.declare(metadata i32 %conv, metadata !26, metadata !13), !dbg !14
34 call void @llvm.dbg.declare(metadata i32 %direct, metadata !25, metadata !13), !dbg !14
35 call void @llvm.dbg.declare(metadata ptr %x.addr, metadata !12, metadata !13), !dbg !14
36 call void @llvm.dbg.declare(metadata ptr %coro_hdl, metadata !15, metadata !13), !dbg !16
37 call void @llvm.dbg.declare(metadata ptr %late_local, metadata !29, metadata !13), !dbg !16
38 call void @llvm.dbg.value(metadata i32 %direct, metadata !30, metadata !13), !dbg !14
39 ; don't crash when encountering nonsensical debug info, verfifier doesn't yet reject these
40 call void @llvm.dbg.declare(metadata ptr null, metadata !28, metadata !13), !dbg !16
41 call void @llvm.dbg.declare(metadata !{}, metadata !28, metadata !13), !dbg !16
42 %new_storgae = invoke ptr @allocate()
43 to label %next unwind label %ehcleanup, !dbg !18
46 br label %sw.epilog, !dbg !18
48 sw.bb1: ; preds = %entry
49 br label %coro_Cleanup, !dbg !18
51 sw.default: ; preds = %entry
52 br label %coro_Suspend, !dbg !18
54 sw.epilog: ; preds = %sw.bb
55 call void @llvm.dbg.declare(metadata ptr %new_storgae, metadata !31, metadata !13), !dbg !16
56 %4 = load i32, ptr %x.addr, align 4, !dbg !20
57 %add = add nsw i32 %4, 1, !dbg !21
58 store i32 %add, ptr %x.addr, align 4, !dbg !22
59 %asm_res = callbr i32 asm "", "=r,r,!i"(i32 %x)
60 to label %coro_Cleanup [label %indirect.dest]
63 call void @log(), !dbg !18
64 br label %coro_Cleanup
66 coro_Cleanup: ; preds = %sw.epilog, %sw.bb1
67 %5 = load ptr, ptr %coro_hdl, align 8, !dbg !24
68 %6 = call ptr @llvm.coro.free(token %0, ptr %5), !dbg !24
69 call void @free(ptr %6), !dbg !24
70 call void @llvm.dbg.declare(metadata i32 %asm_res, metadata !32, metadata !13), !dbg !16
71 br label %coro_Suspend, !dbg !24
73 coro_Suspend: ; preds = %coro_Cleanup, %sw.default
74 %7 = call i1 @llvm.coro.end(ptr null, i1 false, token none) #7, !dbg !24
75 %8 = load ptr, ptr %coro_hdl, align 8, !dbg !24
76 store i32 0, ptr %late_local, !dbg !24
80 %ex = landingpad { ptr, i32 }
82 call void @print({ ptr, i32 } %ex)
86 ; Function Attrs: nounwind readnone speculatable
87 declare void @llvm.dbg.value(metadata, metadata, metadata) #1
89 ; Function Attrs: nounwind readnone speculatable
90 declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
92 ; Function Attrs: argmemonly nounwind readonly
93 declare token @llvm.coro.id(i32, ptr readnone, ptr nocapture readonly, ptr) #2
95 declare ptr @malloc(i64) #3
96 declare ptr @allocate()
97 declare void @print({ ptr, i32 })
100 ; Function Attrs: nounwind readnone
101 declare i64 @llvm.coro.size.i64() #4
103 ; Function Attrs: nounwind
104 declare ptr @llvm.coro.begin(token, ptr writeonly) #5
106 ; Function Attrs: nounwind
107 declare i8 @llvm.coro.suspend(token, i1) #5
109 declare void @free(ptr) #3
111 ; Function Attrs: argmemonly nounwind readonly
112 declare ptr @llvm.coro.free(token, ptr nocapture readonly) #2
114 ; Function Attrs: nounwind
115 declare i1 @llvm.coro.end(ptr, i1, token) #5
117 ; Function Attrs: alwaysinline
118 define private void @coro.devirt.trigger(ptr) #6 {
123 ; Function Attrs: argmemonly nounwind readonly
124 declare ptr @llvm.coro.subfn.addr(ptr nocapture readonly, i8) #2
126 attributes #0 = { noinline nounwind presplitcoroutine "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="none" "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-features"="+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
127 attributes #1 = { nounwind readnone speculatable }
128 attributes #2 = { argmemonly nounwind readonly }
129 attributes #3 = { "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="none" "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-features"="+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
130 attributes #4 = { nounwind readnone }
131 attributes #5 = { nounwind }
132 attributes #6 = { alwaysinline }
133 attributes #7 = { noduplicate }
136 !llvm.module.flags = !{!3, !4}
139 !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 5.0.0", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
140 !1 = !DIFile(filename: "<stdin>", directory: "C:\5CGitHub\5Cllvm\5Cbuild\5CDebug\5Cbin")
142 !3 = !{i32 2, !"Dwarf Version", i32 4}
143 !4 = !{i32 2, !"Debug Info Version", i32 3}
144 !5 = !{!"clang version 5.0.0"}
145 !6 = distinct !DISubprogram(name: "f", linkageName: "flink", scope: !7, file: !7, line: 55, type: !8, isLocal: false, isDefinition: true, scopeLine: 55, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2, declaration: !DISubprogram(name: "f", linkageName: "flink", scope: !7, file: !7, line: 55, type: !8, isLocal: false, isDefinition: false, flags: DIFlagPrototyped))
146 !7 = !DIFile(filename: "simple-repro.c", directory: "C:\5CGitHub\5Cllvm\5Cbuild\5CDebug\5Cbin")
147 !8 = !DISubroutineType(types: !9)
149 !10 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 64)
150 !11 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
151 !12 = !DILocalVariable(name: "x", arg: 1, scope: !6, file: !7, line: 55, type: !11)
152 !13 = !DIExpression()
153 !14 = !DILocation(line: 55, column: 13, scope: !6)
154 !15 = !DILocalVariable(name: "coro_hdl", scope: !6, file: !7, line: 56, type: !10)
155 !16 = !DILocation(line: 56, column: 3, scope: !6)
156 !17 = !DILocation(line: 58, column: 5, scope: !6)
157 !18 = !DILocation(line: 58, column: 5, scope: !19)
158 !19 = distinct !DILexicalBlock(scope: !6, file: !7, line: 58, column: 5)
159 !20 = !DILocation(line: 59, column: 9, scope: !6)
160 !21 = !DILocation(line: 59, column: 10, scope: !6)
161 !22 = !DILocation(line: 59, column: 7, scope: !6)
162 !23 = !DILocation(line: 59, column: 5, scope: !6)
163 !24 = !DILocation(line: 62, column: 3, scope: !6)
164 ; These variables were added manually.
165 !25 = !DILocalVariable(name: "direct_mem", scope: !6, file: !7, line: 55, type: !11)
166 !26 = !DILocalVariable(name: "direct_const", scope: !6, file: !7, line: 55, type: !11)
167 !27 = !DILocalVariable(name: "undefined", scope: !6, file: !7, line: 55, type: !11)
168 !28 = !DILocalVariable(name: "null", scope: !6, file: !7, line: 55, type: !11)
169 !29 = !DILocalVariable(name: "partial_dead", scope: !6, file: !7, line: 55, type: !11)
170 !30 = !DILocalVariable(name: "direct_value", scope: !6, file: !7, line: 55, type: !11)
171 !31 = !DILocalVariable(name: "allocated", scope: !6, file: !7, line: 55, type: !11)
172 !32 = !DILocalVariable(name: "inline_asm", scope: !6, file: !7, line: 55, type: !11)
174 ; CHECK: define ptr @f(i32 %x) #0 personality i32 0 !dbg ![[ORIG:[0-9]+]]
175 ; CHECK: define internal fastcc void @f.resume(ptr noundef nonnull align 8 dereferenceable(40) %0) #0 personality i32 0 !dbg ![[RESUME:[0-9]+]]
176 ; CHECK: entry.resume:
177 ; CHECK: %[[DBG_PTR:.*]] = alloca ptr
178 ; CHECK: #dbg_declare(ptr %[[DBG_PTR]], ![[RESUME_COROHDL:[0-9]+]], !DIExpression(DW_OP_deref, DW_OP_plus_uconst,
179 ; CHECK: #dbg_declare(ptr %[[DBG_PTR]], ![[RESUME_X:[0-9]+]], !DIExpression(DW_OP_deref, DW_OP_plus_uconst, [[EXPR_TAIL:.*]])
180 ; CHECK: #dbg_declare(ptr %[[DBG_PTR]], ![[RESUME_DIRECT:[0-9]+]], !DIExpression(DW_OP_deref, DW_OP_plus_uconst, [[EXPR_TAIL]])
181 ; CHECK: store ptr {{.*}}, ptr %[[DBG_PTR]]
182 ; CHECK-NOT: alloca ptr
183 ; CHECK: #dbg_declare(i8 0, ![[RESUME_CONST:[0-9]+]], !DIExpression(DW_OP_LLVM_convert, 8, DW_ATE_signed, DW_OP_LLVM_convert, 32, DW_ATE_signed),
184 ; Note that keeping the undef value here could be acceptable, too.
185 ; CHECK-NOT: #dbg_declare(ptr undef, !{{[0-9]+}}, !DIExpression(),
186 ; CHECK: call void @coro.devirt.trigger(ptr null)
187 ; CHECK: #dbg_value(ptr {{.*}}, ![[RESUME_DIRECT_VALUE:[0-9]+]], !DIExpression(DW_OP_deref, DW_OP_plus_uconst, {{[0-9]+}}, DW_OP_deref),
188 ; Check that the dbg.declare intrinsic of invoke instruction is hanled correctly.
189 ; CHECK: %[[ALLOCATED_STORAGE:.+]] = invoke ptr @allocate()
190 ; CHECK-NEXT: to label %[[NORMAL_DEST:.+]] unwind
191 ; CHECK: [[NORMAL_DEST]]
192 ; CHECK-NEXT: #dbg_declare(ptr %[[ALLOCATED_STORAGE]]
193 ; CHECK: %[[CALLBR_RES:.+]] = callbr i32 asm
194 ; CHECK-NEXT: to label %[[DEFAULT_DEST:.+]] [label
195 ; CHECK: [[DEFAULT_DEST]]:
197 ; CHECK: #dbg_declare(i32 %[[CALLBR_RES]]
198 ; CHECK: define internal fastcc void @f.destroy(ptr noundef nonnull align 8 dereferenceable(40) %0) #0 personality i32 0 !dbg ![[DESTROY:[0-9]+]]
199 ; CHECK: define internal fastcc void @f.cleanup(ptr noundef nonnull align 8 dereferenceable(40) %0) #0 personality i32 0 !dbg ![[CLEANUP:[0-9]+]]
201 ; CHECK: ![[ORIG]] = distinct !DISubprogram(name: "f", linkageName: "flink"
203 ; CHECK: ![[RESUME]] = distinct !DISubprogram(name: "f", linkageName: "flink"
204 ; CHECK: ![[RESUME_COROHDL]] = !DILocalVariable(name: "coro_hdl", scope: ![[RESUME]]
205 ; CHECK: ![[RESUME_X]] = !DILocalVariable(name: "x", arg: 1, scope: ![[RESUME]]
206 ; CHECK: ![[RESUME_DIRECT]] = !DILocalVariable(name: "direct_mem", scope: ![[RESUME]]
207 ; CHECK: ![[RESUME_CONST]] = !DILocalVariable(name: "direct_const", scope: ![[RESUME]]
208 ; CHECK: ![[RESUME_DIRECT_VALUE]] = !DILocalVariable(name: "direct_value", scope: ![[RESUME]]
210 ; CHECK: ![[DESTROY]] = distinct !DISubprogram(name: "f", linkageName: "flink"
212 ; CHECK: ![[CLEANUP]] = distinct !DISubprogram(name: "f", linkageName: "flink"