1 # RUN: llc -run-pass livedebugvalues %s -o - | FileCheck %s
3 # Test if LiveDebugValue analysis works on Wasm.
6 target triple = "wasm32-unknown-unknown"
8 define void @test_consts() !dbg !5 {
9 call void @llvm.dbg.value(metadata i32 0, metadata !9, metadata !DIExpression()), !dbg !10
10 call void @llvm.dbg.value(metadata i32 0, metadata !11, metadata !DIExpression()), !dbg !10
11 call void @llvm.dbg.value(metadata i32 0, metadata !12, metadata !DIExpression()), !dbg !10
12 call void @llvm.dbg.value(metadata i32 0, metadata !13, metadata !DIExpression()), !dbg !10
16 define void @test_target_indices() !dbg !14 {
17 call void @llvm.dbg.value(metadata i32 0, metadata !15, metadata !DIExpression()), !dbg !16
18 call void @llvm.dbg.value(metadata i32 0, metadata !17, metadata !DIExpression()), !dbg !16
19 call void @llvm.dbg.value(metadata i32 0, metadata !18, metadata !DIExpression()), !dbg !16
20 call void @llvm.dbg.value(metadata i32 0, metadata !19, metadata !DIExpression()), !dbg !16
21 call void @llvm.dbg.value(metadata i32 0, metadata !20, metadata !DIExpression()), !dbg !16
25 define void @test_target_index_defs() !dbg !21 {
26 call void @llvm.dbg.value(metadata i32 0, metadata !22, metadata !DIExpression()), !dbg !23
27 call void @llvm.dbg.value(metadata i32 0, metadata !24, metadata !DIExpression()), !dbg !23
28 call void @llvm.dbg.value(metadata i32 0, metadata !25, metadata !DIExpression()), !dbg !23
32 declare void @llvm.dbg.value(metadata, metadata, metadata)
35 !llvm.module.flags = !{!2, !3, !4}
37 !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, emissionKind: FullDebug)
38 !1 = !DIFile(filename: "test.c", directory: "")
39 !2 = !{i32 7, !"Dwarf Version", i32 5}
40 !3 = !{i32 2, !"Debug Info Version", i32 3}
41 !4 = !{i32 1, !"wchar_size", i32 4}
42 !5 = distinct !DISubprogram(name: "test_consts", scope: !1, file: !1, line: 1, type: !6, scopeLine: 1, unit: !0)
43 ; CHECK: ![[T0_SP:[0-9]+]] = distinct !DISubprogram(name: "test_consts"
44 !6 = !DISubroutineType(types: !7)
46 !8 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
47 !9 = !DILocalVariable(name: "var0", scope: !5, file: !1, line: 2, type: !8)
48 ; CHECK: ![[T0_VAR0:[0-9]+]] = !DILocalVariable(name: "var0", scope: ![[T0_SP]]
49 !10 = !DILocation(line: 0, scope: !5)
50 !11 = !DILocalVariable(name: "var1", scope: !5, file: !1, line: 2, type: !8)
51 ; CHECK: ![[T0_VAR1:[0-9]+]] = !DILocalVariable(name: "var1", scope: ![[T0_SP]]
52 !12 = !DILocalVariable(name: "var2", scope: !5, file: !1, line: 2, type: !8)
53 ; CHECK: ![[T0_VAR2:[0-9]+]] = !DILocalVariable(name: "var2", scope: ![[T0_SP]]
54 !13 = !DILocalVariable(name: "var3", scope: !5, file: !1, line: 2, type: !8)
55 ; CHECK: ![[T0_VAR3:[0-9]+]] = !DILocalVariable(name: "var3", scope: ![[T0_SP]]
56 !14 = distinct !DISubprogram(name: "test_target_indices", scope: !1, file: !1, line: 10, type: !6, scopeLine: 1, unit: !0)
57 ; CHECK: ![[T1_SP:[0-9]+]] = distinct !DISubprogram(name: "test_target_indices"
58 !15 = !DILocalVariable(name: "var0", scope: !14, file: !1, line: 11, type: !8)
59 ; CHECK: ![[T1_VAR0:[0-9]+]] = !DILocalVariable(name: "var0", scope: ![[T1_SP]]
60 !16 = !DILocation(line: 10, scope: !14)
61 !17 = !DILocalVariable(name: "var1", scope: !14, file: !1, line: 11, type: !8)
62 ; CHECK: ![[T1_VAR1:[0-9]+]] = !DILocalVariable(name: "var1", scope: ![[T1_SP]]
63 !18 = !DILocalVariable(name: "var2", scope: !14, file: !1, line: 11, type: !8)
64 ; CHECK: ![[T1_VAR2:[0-9]+]] = !DILocalVariable(name: "var2", scope: ![[T1_SP]]
65 !19 = !DILocalVariable(name: "var3", scope: !14, file: !1, line: 11, type: !8)
66 ; CHECK: ![[T1_VAR3:[0-9]+]] = !DILocalVariable(name: "var3", scope: ![[T1_SP]]
67 !20 = !DILocalVariable(name: "var4", scope: !14, file: !1, line: 11, type: !8)
68 ; CHECK: ![[T1_VAR4:[0-9]+]] = !DILocalVariable(name: "var4", scope: ![[T1_SP]]
69 !21 = distinct !DISubprogram(name: "test_target_index_defs", scope: !1, file: !1, line: 10, type: !6, scopeLine: 1, unit: !0)
70 !22 = !DILocalVariable(name: "var0", scope: !21, file: !1, line: 20, type: !8)
71 !23 = !DILocation(line: 10, scope: !21)
72 !24 = !DILocalVariable(name: "var1", scope: !21, file: !1, line: 20, type: !8)
73 !25 = !DILocalVariable(name: "var2", scope: !21, file: !1, line: 20, type: !8)
77 # var0: Its debug value is set once in bb.0 and valid throughout the function.
78 # So a new DBG_VALUE will be added to the beginnings of all other BBs
79 # (bb.1, bb.2, and bb.3).
80 # var1: Its debug value is set in bb.0, but is reset to no info in bb.1. So a
81 # new DBG_VALUE will be added in the beginning of bb.1 and bb.2, but bb.3
82 # will not, because its two predecesors (bb.1 and bb.2) have different
84 # var2: Its debug value is set both in bb.1 and bb.2 with the same value. bb.3
85 # will have a new DBG_VALUE representing that value.
86 # var3: Its debug value is set both in bb.1 and bb.2 but with different values.
87 # bb.3 will NOT have a new DBG_VALUE instruction because its predecessors
88 # don't agree on a value.
89 # CHECK-LABEL: name: test_consts
92 - { reg: '$arguments' }
95 successors: %bb.1, %bb.2
97 DBG_VALUE 10, $noreg, !9, !DIExpression(), debug-location !10
98 DBG_VALUE 20, $noreg, !11, !DIExpression(), debug-location !10
99 %0:i32 = CONST_I32 1, implicit-def $arguments
100 BR_IF %bb.2, %0:i32, implicit-def $arguments
103 ; CHECK-DAG: DBG_VALUE 10, $noreg, ![[T0_VAR0]]
104 ; CHECK-DAG: DBG_VALUE 20, $noreg, ![[T0_VAR1]]
106 ; predecessors: %bb.0
108 DBG_VALUE $noreg, $noreg, !11, !DIExpression(), debug-location !10
109 DBG_VALUE 30, $noreg, !12, !DIExpression(), debug-location !10
110 DBG_VALUE 30, $noreg, !13, !DIExpression(), debug-location !10
111 BR %bb.3, implicit-def $arguments
114 ; CHECK-DAG: DBG_VALUE 10, $noreg, ![[T0_VAR0]]
115 ; CHECK-DAG: DBG_VALUE 20, $noreg, ![[T0_VAR1]]
117 ; predecessors: %bb.0
119 DBG_VALUE 30, $noreg, !12, !DIExpression(), debug-location !10
120 DBG_VALUE 40, $noreg, !13, !DIExpression(), debug-location !10
121 BR %bb.3, implicit-def $arguments
124 ; CHECK-DAG: DBG_VALUE 10, $noreg, ![[T0_VAR0]]
125 ; CHECK-DAG: DBG_VALUE 30, $noreg, ![[T0_VAR2]]
126 ; CHECK-NOT: DBG_VALUE {{[0-9]+}}, $noreg, ![[T0_VAR1]]
127 ; CHECK-NOT: DBG_VALUE {{[0-9]+}}, $noreg, ![[T0_VAR3]]
129 ; predecessors: %bb.1, %bb.2
130 RETURN implicit-def dead $arguments
134 # var0: Its debug value is set once in bb.0 and valid throughout the function.
135 # So a new DBG_VALUE will be added to the beginnings of all other BBs
136 # (bb.1, bb.2, and bb.3).
137 # var1: Its debug value is set in bb.0, but is reset to no info back later in
138 # bb.0. So no DBG_VALUEs will be added in other BBs.
139 # var2: Its debug value is set both in bb.1 and bb.2 with the same value (The
140 # same kind (local) and same local index). bb.3 will have a new DBG_VALUE
141 # representing that value.
142 # var3: Its debug value is set both in bb.1 and bb.2 but with different values.
143 # Both are locals, but their indices are different. bb.3 will NOT have a
144 # new DBG_VALUE instruction because its predecessors don't agree on a
146 # var4: Its debug value is set both in bb.1 and bb.2 but with different values.
147 # They have different kinds; one is a local and the other is a stack
148 # operand. (Their index is the same, but it doesn't matter.) bb.3 will NOT
149 # have a new DBG_VALUE instruction because its predecessors don't agree on
151 # CHECK-LABEL: name: test_target_indices
152 name: test_target_indices
154 - { reg: '$arguments' }
157 successors: %bb.1, %bb.2
159 DBG_VALUE target-index(wasm-local), $noreg, !15, !DIExpression(), debug-location !16
160 DBG_VALUE target-index(wasm-operand-stack) + 2, $noreg, !17, !DIExpression(), debug-location !16
161 %0:i32 = CONST_I32 1, implicit-def $arguments
162 DBG_VALUE $noreg, $noreg, !17, !DIExpression(), debug-location !16
163 BR_IF %bb.2, %0:i32, implicit-def $arguments
166 ; CHECK: DBG_VALUE target-index(wasm-local), $noreg, ![[T1_VAR0]]
168 ; predecessors: %bb.0
170 DBG_VALUE target-index(wasm-local) + 2, $noreg, !18, !DIExpression(), debug-location !16
171 DBG_VALUE target-index(wasm-local) + 3, $noreg, !19, !DIExpression(), debug-location !16
172 DBG_VALUE target-index(wasm-operand-stack) + 3, $noreg, !20, !DIExpression(), debug-location !16
173 BR %bb.3, implicit-def $arguments
176 ; CHECK: DBG_VALUE target-index(wasm-local), $noreg, ![[T1_VAR0]]
178 ; predecessors: %bb.0
180 DBG_VALUE target-index(wasm-local) + 2, $noreg, !18, !DIExpression(), debug-location !16
181 DBG_VALUE target-index(wasm-local) + 5, $noreg, !19, !DIExpression(), debug-location !16
182 DBG_VALUE target-index(wasm-local) + 3, $noreg, !20, !DIExpression(), debug-location !16
183 BR %bb.3, implicit-def $arguments
186 ; CHECK-DAG: DBG_VALUE target-index(wasm-local), $noreg, ![[T1_VAR0]]
187 ; CHECK-DAG: DBG_VALUE target-index(wasm-local) + 2, $noreg, ![[T1_VAR2]]
188 ; CHECK-NOT: DBG_VALUE target-index(wasm-local){{.*}}, $noreg, ![[T1_VAR3]]
189 ; CHECK-NOT: DBG_VALUE target-index(wasm-local){{.*}}, $noreg, ![[T1_VAR4]]
191 ; predecessors: %bb.1, %bb.2
192 RETURN implicit-def dead $arguments
196 # bb.0 defines DBG_VALUEs for local index 2 and 3. The DBG_VALUE for local index
197 # 2 is killed in bb.1 due to 'local.tee 2' there, and DBG_VALUE for local
198 # index 3 is killed in bb.2 because there is 'local.set 3' there. As a result,
199 # bb.3 shoudln't have any additional DBG_VALUEs added for those locals.
200 # CHECK-LABEL: name: test_target_index_defs
201 name: test_target_index_defs
203 - { reg: '$arguments' }
206 successors: %bb.1, %bb.2
208 DBG_VALUE target-index(wasm-local) + 2, $noreg, !22, !DIExpression(), debug-location !23
209 DBG_VALUE target-index(wasm-local) + 3, $noreg, !24, !DIExpression(), debug-location !23
210 %0:i32 = CONST_I32 1, implicit-def $arguments
211 BR_IF %bb.2, %0:i32, implicit-def $arguments
214 ; predecessors: %bb.0
216 %0:i32 = CONST_I32 1, implicit-def $arguments
217 %1:i32 = LOCAL_TEE_I32 2, %0:i32, implicit-def $arguments
218 DROP_I32 killed %1:i32, implicit-def $arguments
219 BR %bb.3, implicit-def $arguments
222 ; predecessors: %bb.0
224 %0:i32 = CONST_I32 1, implicit-def $arguments
225 LOCAL_SET_I32 3, %0:i32, implicit-def $arguments
226 BR %bb.3, implicit-def $arguments
229 ; CHECK-NOT: DBG_VALUE target-index(wasm-local){{.*}}
231 ; predecessors: %bb.1, %bb.2
232 RETURN implicit-def dead $arguments