1 ; Tests that debug information is sane after coro-split
2 ; RUN: opt < %s -passes='cgscc(coro-split),simplifycfg,early-cse' -S | FileCheck %s
4 source_filename = "simple-repro.c"
5 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
6 target triple = "x86_64-unknown-linux-gnu"
8 ; Function Attrs: noinline nounwind
9 define ptr @f(i32 %x) #0 personality i32 0 !dbg !6 {
11 %x.addr = alloca i32, align 4
12 %coro_hdl = alloca ptr, align 8
13 store i32 %x, ptr %x.addr, align 4
14 %0 = call token @llvm.coro.id(i32 0, ptr null, ptr @f, ptr null), !dbg !16
15 %1 = call i64 @llvm.coro.size.i64(), !dbg !16
16 %call = call ptr @malloc(i64 %1), !dbg !16
17 %2 = call ptr @llvm.coro.begin(token %0, ptr %call) #7, !dbg !16
18 store ptr %2, ptr %coro_hdl, align 8, !dbg !16
19 %3 = call i8 @llvm.coro.suspend(token none, i1 false), !dbg !17
20 %conv = sext i8 %3 to i32, !dbg !17
21 %late_local = alloca i32, align 4
22 call void @coro.devirt.trigger(ptr null)
23 switch i32 %conv, label %sw.default [
28 sw.bb: ; preds = %entry
29 %direct = load i32, ptr %x.addr, align 4, !dbg !14
30 %gep = getelementptr inbounds [16 x i8], ptr undef, i32 %direct, !dbg !14
31 call void @llvm.dbg.declare(metadata ptr %gep, metadata !27, metadata !13), !dbg !14
32 call void @llvm.dbg.declare(metadata i32 %conv, metadata !26, metadata !13), !dbg !14
33 call void @llvm.dbg.declare(metadata i32 %direct, metadata !25, metadata !13), !dbg !14
34 call void @llvm.dbg.declare(metadata ptr %x.addr, metadata !12, metadata !13), !dbg !14
35 call void @llvm.dbg.declare(metadata ptr %coro_hdl, metadata !15, metadata !13), !dbg !16
36 call void @llvm.dbg.declare(metadata ptr %late_local, metadata !29, metadata !13), !dbg !16
37 call void @llvm.dbg.value(metadata i32 %direct, metadata !30, metadata !13), !dbg !14
38 ; don't crash when encountering nonsensical debug info, verfifier doesn't yet reject these
39 call void @llvm.dbg.declare(metadata ptr null, metadata !28, metadata !13), !dbg !16
40 call void @llvm.dbg.declare(metadata !{}, metadata !28, metadata !13), !dbg !16
41 %new_storgae = invoke ptr @allocate()
42 to label %next unwind label %ehcleanup, !dbg !18
45 br label %sw.epilog, !dbg !18
47 sw.bb1: ; preds = %entry
48 br label %coro_Cleanup, !dbg !18
50 sw.default: ; preds = %entry
51 br label %coro_Suspend, !dbg !18
53 sw.epilog: ; preds = %sw.bb
54 call void @llvm.dbg.declare(metadata ptr %new_storgae, metadata !31, metadata !13), !dbg !16
55 %4 = load i32, ptr %x.addr, align 4, !dbg !20
56 %add = add nsw i32 %4, 1, !dbg !21
57 store i32 %add, ptr %x.addr, align 4, !dbg !22
58 %asm_res = callbr i32 asm "", "=r,r,!i"(i32 %x)
59 to label %coro_Cleanup [label %indirect.dest]
62 call void @log(), !dbg !18
63 br label %coro_Cleanup
65 coro_Cleanup: ; preds = %sw.epilog, %sw.bb1
66 %5 = load ptr, ptr %coro_hdl, align 8, !dbg !24
67 %6 = call ptr @llvm.coro.free(token %0, ptr %5), !dbg !24
68 call void @free(ptr %6), !dbg !24
69 call void @llvm.dbg.declare(metadata i32 %asm_res, metadata !32, metadata !13), !dbg !16
70 br label %coro_Suspend, !dbg !24
72 coro_Suspend: ; preds = %coro_Cleanup, %sw.default
73 %7 = call i1 @llvm.coro.end(ptr null, i1 false, token none) #7, !dbg !24
74 %8 = load ptr, ptr %coro_hdl, align 8, !dbg !24
75 store i32 0, ptr %late_local, !dbg !24
79 %ex = landingpad { ptr, i32 }
81 call void @print({ ptr, i32 } %ex)
85 ; Function Attrs: nounwind readnone speculatable
86 declare void @llvm.dbg.value(metadata, metadata, metadata) #1
88 ; Function Attrs: nounwind readnone speculatable
89 declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
91 ; Function Attrs: argmemonly nounwind readonly
92 declare token @llvm.coro.id(i32, ptr readnone, ptr nocapture readonly, ptr) #2
94 declare ptr @malloc(i64) #3
95 declare ptr @allocate()
96 declare void @print({ ptr, i32 })
99 ; Function Attrs: nounwind readnone
100 declare i64 @llvm.coro.size.i64() #4
102 ; Function Attrs: nounwind
103 declare ptr @llvm.coro.begin(token, ptr writeonly) #5
105 ; Function Attrs: nounwind
106 declare i8 @llvm.coro.suspend(token, i1) #5
108 declare void @free(ptr) #3
110 ; Function Attrs: argmemonly nounwind readonly
111 declare ptr @llvm.coro.free(token, ptr nocapture readonly) #2
113 ; Function Attrs: nounwind
114 declare i1 @llvm.coro.end(ptr, i1, token) #5
116 ; Function Attrs: alwaysinline
117 define private void @coro.devirt.trigger(ptr) #6 {
122 ; Function Attrs: argmemonly nounwind readonly
123 declare ptr @llvm.coro.subfn.addr(ptr nocapture readonly, i8) #2
125 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" }
126 attributes #1 = { nounwind readnone speculatable }
127 attributes #2 = { argmemonly nounwind readonly }
128 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" }
129 attributes #4 = { nounwind readnone }
130 attributes #5 = { nounwind }
131 attributes #6 = { alwaysinline }
132 attributes #7 = { noduplicate }
135 !llvm.module.flags = !{!3, !4}
138 !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 5.0.0", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
139 !1 = !DIFile(filename: "<stdin>", directory: "C:\5CGitHub\5Cllvm\5Cbuild\5CDebug\5Cbin")
141 !3 = !{i32 2, !"Dwarf Version", i32 4}
142 !4 = !{i32 2, !"Debug Info Version", i32 3}
143 !5 = !{!"clang version 5.0.0"}
144 !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))
145 !7 = !DIFile(filename: "simple-repro.c", directory: "C:\5CGitHub\5Cllvm\5Cbuild\5CDebug\5Cbin")
146 !8 = !DISubroutineType(types: !9)
148 !10 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 64)
149 !11 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
150 !12 = !DILocalVariable(name: "x", arg: 1, scope: !6, file: !7, line: 55, type: !11)
151 !13 = !DIExpression()
152 !14 = !DILocation(line: 55, column: 13, scope: !6)
153 !15 = !DILocalVariable(name: "coro_hdl", scope: !6, file: !7, line: 56, type: !10)
154 !16 = !DILocation(line: 56, column: 3, scope: !6)
155 !17 = !DILocation(line: 58, column: 5, scope: !6)
156 !18 = !DILocation(line: 58, column: 5, scope: !19)
157 !19 = distinct !DILexicalBlock(scope: !6, file: !7, line: 58, column: 5)
158 !20 = !DILocation(line: 59, column: 9, scope: !6)
159 !21 = !DILocation(line: 59, column: 10, scope: !6)
160 !22 = !DILocation(line: 59, column: 7, scope: !6)
161 !23 = !DILocation(line: 59, column: 5, scope: !6)
162 !24 = !DILocation(line: 62, column: 3, scope: !6)
163 ; These variables were added manually.
164 !25 = !DILocalVariable(name: "direct_mem", scope: !6, file: !7, line: 55, type: !11)
165 !26 = !DILocalVariable(name: "direct_const", scope: !6, file: !7, line: 55, type: !11)
166 !27 = !DILocalVariable(name: "undefined", scope: !6, file: !7, line: 55, type: !11)
167 !28 = !DILocalVariable(name: "null", scope: !6, file: !7, line: 55, type: !11)
168 !29 = !DILocalVariable(name: "partial_dead", scope: !6, file: !7, line: 55, type: !11)
169 !30 = !DILocalVariable(name: "direct_value", scope: !6, file: !7, line: 55, type: !11)
170 !31 = !DILocalVariable(name: "allocated", scope: !6, file: !7, line: 55, type: !11)
171 !32 = !DILocalVariable(name: "inline_asm", scope: !6, file: !7, line: 55, type: !11)
173 ; CHECK: define ptr @f(i32 %x) #0 personality i32 0 !dbg ![[ORIG:[0-9]+]]
174 ; CHECK: define internal fastcc void @f.resume(ptr noundef nonnull align 8 dereferenceable(40) %0) #0 personality i32 0 !dbg ![[RESUME:[0-9]+]]
175 ; CHECK: entry.resume:
176 ; CHECK: %[[DBG_PTR:.*]] = alloca ptr
177 ; CHECK: call void @llvm.dbg.declare(metadata ptr %[[DBG_PTR]], metadata ![[RESUME_COROHDL:[0-9]+]], metadata !DIExpression(DW_OP_deref, DW_OP_plus_uconst,
178 ; CHECK: call void @llvm.dbg.declare(metadata ptr %[[DBG_PTR]], metadata ![[RESUME_X:[0-9]+]], metadata !DIExpression(DW_OP_deref, DW_OP_plus_uconst, [[EXPR_TAIL:.*]])
179 ; CHECK: call void @llvm.dbg.declare(metadata ptr %[[DBG_PTR]], metadata ![[RESUME_DIRECT:[0-9]+]], metadata !DIExpression(DW_OP_deref, DW_OP_plus_uconst, [[EXPR_TAIL]])
180 ; CHECK: store ptr {{.*}}, ptr %[[DBG_PTR]]
181 ; CHECK-NOT: alloca ptr
182 ; CHECK: call void @llvm.dbg.declare(metadata i8 0, metadata ![[RESUME_CONST:[0-9]+]], metadata !DIExpression(DW_OP_LLVM_convert, 8, DW_ATE_signed, DW_OP_LLVM_convert, 32, DW_ATE_signed))
183 ; Note that keeping the undef value here could be acceptable, too.
184 ; CHECK-NOT: call void @llvm.dbg.declare(metadata ptr undef, metadata !{{[0-9]+}}, metadata !DIExpression())
185 ; CHECK: call void @coro.devirt.trigger(ptr null)
186 ; CHECK: call void @llvm.dbg.value(metadata ptr {{.*}}, metadata ![[RESUME_DIRECT_VALUE:[0-9]+]], metadata !DIExpression(DW_OP_deref, DW_OP_plus_uconst, {{[0-9]+}}, DW_OP_deref))
187 ; Check that the dbg.declare intrinsic of invoke instruction is hanled correctly.
188 ; CHECK: %[[ALLOCATED_STORAGE:.+]] = invoke ptr @allocate()
189 ; CHECK-NEXT: to label %[[NORMAL_DEST:.+]] unwind
190 ; CHECK: [[NORMAL_DEST]]
191 ; CHECK-NEXT: call void @llvm.dbg.declare(metadata ptr %[[ALLOCATED_STORAGE]]
192 ; CHECK: %[[CALLBR_RES:.+]] = callbr i32 asm
193 ; CHECK-NEXT: to label %[[DEFAULT_DEST:.+]] [label
194 ; CHECK: [[DEFAULT_DEST]]:
196 ; CHECK: call void @llvm.dbg.declare(metadata i32 %[[CALLBR_RES]]
197 ; CHECK: define internal fastcc void @f.destroy(ptr noundef nonnull align 8 dereferenceable(40) %0) #0 personality i32 0 !dbg ![[DESTROY:[0-9]+]]
198 ; CHECK: define internal fastcc void @f.cleanup(ptr noundef nonnull align 8 dereferenceable(40) %0) #0 personality i32 0 !dbg ![[CLEANUP:[0-9]+]]
200 ; CHECK: ![[ORIG]] = distinct !DISubprogram(name: "f", linkageName: "flink"
202 ; CHECK: ![[RESUME]] = distinct !DISubprogram(name: "f", linkageName: "flink"
203 ; CHECK: ![[RESUME_COROHDL]] = !DILocalVariable(name: "coro_hdl", scope: ![[RESUME]]
204 ; CHECK: ![[RESUME_X]] = !DILocalVariable(name: "x", arg: 1, scope: ![[RESUME]]
205 ; CHECK: ![[RESUME_DIRECT]] = !DILocalVariable(name: "direct_mem", scope: ![[RESUME]]
206 ; CHECK: ![[RESUME_CONST]] = !DILocalVariable(name: "direct_const", scope: ![[RESUME]]
207 ; CHECK: ![[RESUME_DIRECT_VALUE]] = !DILocalVariable(name: "direct_value", scope: ![[RESUME]]
209 ; CHECK: ![[DESTROY]] = distinct !DISubprogram(name: "f", linkageName: "flink"
211 ; CHECK: ![[CLEANUP]] = distinct !DISubprogram(name: "f", linkageName: "flink"