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1# RUN: llc -run-pass livedebugvalues %s -o - | FileCheck %s2 3# Test if LiveDebugValue analysis works on Wasm.4 5--- |6 target triple = "wasm32-unknown-unknown"7 8 define void @test_consts() !dbg !5 {9 call void @llvm.dbg.value(metadata i32 0, metadata !9, metadata !DIExpression()), !dbg !1010 call void @llvm.dbg.value(metadata i32 0, metadata !11, metadata !DIExpression()), !dbg !1011 call void @llvm.dbg.value(metadata i32 0, metadata !12, metadata !DIExpression()), !dbg !1012 call void @llvm.dbg.value(metadata i32 0, metadata !13, metadata !DIExpression()), !dbg !1013 ret void14 }15 16 define void @test_target_indices() !dbg !14 {17 call void @llvm.dbg.value(metadata i32 0, metadata !15, metadata !DIExpression()), !dbg !1618 call void @llvm.dbg.value(metadata i32 0, metadata !17, metadata !DIExpression()), !dbg !1619 call void @llvm.dbg.value(metadata i32 0, metadata !18, metadata !DIExpression()), !dbg !1620 call void @llvm.dbg.value(metadata i32 0, metadata !19, metadata !DIExpression()), !dbg !1621 call void @llvm.dbg.value(metadata i32 0, metadata !20, metadata !DIExpression()), !dbg !1622 ret void23 }24 25 define void @test_target_index_defs() !dbg !21 {26 call void @llvm.dbg.value(metadata i32 0, metadata !22, metadata !DIExpression()), !dbg !2327 call void @llvm.dbg.value(metadata i32 0, metadata !24, metadata !DIExpression()), !dbg !2328 call void @llvm.dbg.value(metadata i32 0, metadata !25, metadata !DIExpression()), !dbg !2329 ret void30 }31 32 declare void @llvm.dbg.value(metadata, metadata, metadata)33 34 !llvm.dbg.cu = !{!0}35 !llvm.module.flags = !{!2, !3, !4}36 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)45 !7 = !{!8}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)74...75 76---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 BBs79# (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 a81# new DBG_VALUE will be added in the beginning of bb.1 and bb.2, but bb.382# will not, because its two predecesors (bb.1 and bb.2) have different83# debug values.84# var2: Its debug value is set both in bb.1 and bb.2 with the same value. bb.385# 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 predecessors88# don't agree on a value.89# CHECK-LABEL: name: test_consts90name: test_consts91liveins:92 - { reg: '$arguments' }93body: |94 bb.0:95 successors: %bb.1, %bb.296 liveins: $arguments97 DBG_VALUE 10, $noreg, !9, !DIExpression(), debug-location !1098 DBG_VALUE 20, $noreg, !11, !DIExpression(), debug-location !1099 %0:i32 = CONST_I32 1, implicit-def $arguments100 BR_IF %bb.2, %0:i32, implicit-def $arguments101 102 ; CHECK: bb.1:103 ; CHECK-DAG: DBG_VALUE 10, $noreg, ![[T0_VAR0]]104 ; CHECK-DAG: DBG_VALUE 20, $noreg, ![[T0_VAR1]]105 bb.1:106 ; predecessors: %bb.0107 successors: %bb.3108 DBG_VALUE $noreg, $noreg, !11, !DIExpression(), debug-location !10109 DBG_VALUE 30, $noreg, !12, !DIExpression(), debug-location !10110 DBG_VALUE 30, $noreg, !13, !DIExpression(), debug-location !10111 BR %bb.3, implicit-def $arguments112 113 ; CHECK: bb.2:114 ; CHECK-DAG: DBG_VALUE 10, $noreg, ![[T0_VAR0]]115 ; CHECK-DAG: DBG_VALUE 20, $noreg, ![[T0_VAR1]]116 bb.2:117 ; predecessors: %bb.0118 successors: %bb.3119 DBG_VALUE 30, $noreg, !12, !DIExpression(), debug-location !10120 DBG_VALUE 40, $noreg, !13, !DIExpression(), debug-location !10121 BR %bb.3, implicit-def $arguments122 123 ; CHECK: bb.3:124 ; 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]]128 bb.3:129 ; predecessors: %bb.1, %bb.2130 RETURN implicit-def dead $arguments131...132 133---134# var0: Its debug value is set once in bb.0 and valid throughout the function.135# So a new DBG_VALUE will be added to the beginnings of all other BBs136# (bb.1, bb.2, and bb.3).137# var1: Its debug value is set in bb.0, but is reset to no info back later in138# bb.0. So no DBG_VALUEs will be added in other BBs.139# var2: Its debug value is set both in bb.1 and bb.2 with the same value (The140# same kind (local) and same local index). bb.3 will have a new DBG_VALUE141# representing that value.142# var3: Its debug value is set both in bb.1 and bb.2 but with different values.143# Both are locals, but their indices are different. bb.3 will NOT have a144# new DBG_VALUE instruction because its predecessors don't agree on a145# value.146# var4: Its debug value is set both in bb.1 and bb.2 but with different values.147# They have different kinds; one is a local and the other is a stack148# operand. (Their index is the same, but it doesn't matter.) bb.3 will NOT149# have a new DBG_VALUE instruction because its predecessors don't agree on150# a value.151# CHECK-LABEL: name: test_target_indices152name: test_target_indices153liveins:154 - { reg: '$arguments' }155body: |156 bb.0:157 successors: %bb.1, %bb.2158 liveins: $arguments159 DBG_VALUE target-index(wasm-local), $noreg, !15, !DIExpression(), debug-location !16160 DBG_VALUE target-index(wasm-operand-stack) + 2, $noreg, !17, !DIExpression(), debug-location !16161 %0:i32 = CONST_I32 1, implicit-def $arguments162 DBG_VALUE $noreg, $noreg, !17, !DIExpression(), debug-location !16163 BR_IF %bb.2, %0:i32, implicit-def $arguments164 165 ; CHECK: bb.1:166 ; CHECK: DBG_VALUE target-index(wasm-local), $noreg, ![[T1_VAR0]]167 bb.1:168 ; predecessors: %bb.0169 successors: %bb.3170 DBG_VALUE target-index(wasm-local) + 2, $noreg, !18, !DIExpression(), debug-location !16171 DBG_VALUE target-index(wasm-local) + 3, $noreg, !19, !DIExpression(), debug-location !16172 DBG_VALUE target-index(wasm-operand-stack) + 3, $noreg, !20, !DIExpression(), debug-location !16173 BR %bb.3, implicit-def $arguments174 175 ; CHECK: bb.2:176 ; CHECK: DBG_VALUE target-index(wasm-local), $noreg, ![[T1_VAR0]]177 bb.2:178 ; predecessors: %bb.0179 successors: %bb.3180 DBG_VALUE target-index(wasm-local) + 2, $noreg, !18, !DIExpression(), debug-location !16181 DBG_VALUE target-index(wasm-local) + 5, $noreg, !19, !DIExpression(), debug-location !16182 DBG_VALUE target-index(wasm-local) + 3, $noreg, !20, !DIExpression(), debug-location !16183 BR %bb.3, implicit-def $arguments184 185 ; CHECK: bb.3:186 ; 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]]190 bb.3:191 ; predecessors: %bb.1, %bb.2192 RETURN implicit-def dead $arguments193...194 195---196# bb.0 defines DBG_VALUEs for local index 2 and 3. The DBG_VALUE for local index197# 2 is killed in bb.1 due to 'local.tee 2' there, and DBG_VALUE for local198# index 3 is killed in bb.2 because there is 'local.set 3' there. As a result,199# bb.3 shoudln't have any additional DBG_VALUEs added for those locals.200# CHECK-LABEL: name: test_target_index_defs201name: test_target_index_defs202liveins:203 - { reg: '$arguments' }204body: |205 bb.0:206 successors: %bb.1, %bb.2207 liveins: $arguments208 DBG_VALUE target-index(wasm-local) + 2, $noreg, !22, !DIExpression(), debug-location !23209 DBG_VALUE target-index(wasm-local) + 3, $noreg, !24, !DIExpression(), debug-location !23210 %0:i32 = CONST_I32 1, implicit-def $arguments211 BR_IF %bb.2, %0:i32, implicit-def $arguments212 213 bb.1:214 ; predecessors: %bb.0215 successors: %bb.3216 %0:i32 = CONST_I32 1, implicit-def $arguments217 %1:i32 = LOCAL_TEE_I32 2, %0:i32, implicit-def $arguments218 DROP_I32 killed %1:i32, implicit-def $arguments219 BR %bb.3, implicit-def $arguments220 221 bb.2:222 ; predecessors: %bb.0223 successors: %bb.3224 %0:i32 = CONST_I32 1, implicit-def $arguments225 LOCAL_SET_I32 3, %0:i32, implicit-def $arguments226 BR %bb.3, implicit-def $arguments227 228 ; CHECK: bb.3:229 ; CHECK-NOT: DBG_VALUE target-index(wasm-local){{.*}}230 bb.3:231 ; predecessors: %bb.1, %bb.2232 RETURN implicit-def dead $arguments233...234