| # RUN: llc -run-pass livedebugvalues %s -o - | FileCheck %s |
| |
| # Test if LiveDebugValue analysis works on Wasm. |
| |
| --- | |
| target triple = "wasm32-unknown-unknown" |
| |
| define void @test_consts() !dbg !5 { |
| call void @llvm.dbg.value(metadata i32 0, metadata !9, metadata !DIExpression()), !dbg !10 |
| call void @llvm.dbg.value(metadata i32 0, metadata !11, metadata !DIExpression()), !dbg !10 |
| call void @llvm.dbg.value(metadata i32 0, metadata !12, metadata !DIExpression()), !dbg !10 |
| call void @llvm.dbg.value(metadata i32 0, metadata !13, metadata !DIExpression()), !dbg !10 |
| ret void |
| } |
| |
| define void @test_target_indices() !dbg !14 { |
| call void @llvm.dbg.value(metadata i32 0, metadata !15, metadata !DIExpression()), !dbg !16 |
| call void @llvm.dbg.value(metadata i32 0, metadata !17, metadata !DIExpression()), !dbg !16 |
| call void @llvm.dbg.value(metadata i32 0, metadata !18, metadata !DIExpression()), !dbg !16 |
| call void @llvm.dbg.value(metadata i32 0, metadata !19, metadata !DIExpression()), !dbg !16 |
| call void @llvm.dbg.value(metadata i32 0, metadata !20, metadata !DIExpression()), !dbg !16 |
| ret void |
| } |
| |
| define void @test_target_index_defs() !dbg !21 { |
| call void @llvm.dbg.value(metadata i32 0, metadata !22, metadata !DIExpression()), !dbg !23 |
| call void @llvm.dbg.value(metadata i32 0, metadata !24, metadata !DIExpression()), !dbg !23 |
| call void @llvm.dbg.value(metadata i32 0, metadata !25, metadata !DIExpression()), !dbg !23 |
| ret void |
| } |
| |
| declare void @llvm.dbg.value(metadata, metadata, metadata) |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!2, !3, !4} |
| |
| !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, emissionKind: FullDebug) |
| !1 = !DIFile(filename: "test.c", directory: "") |
| !2 = !{i32 7, !"Dwarf Version", i32 5} |
| !3 = !{i32 2, !"Debug Info Version", i32 3} |
| !4 = !{i32 1, !"wchar_size", i32 4} |
| !5 = distinct !DISubprogram(name: "test_consts", scope: !1, file: !1, line: 1, type: !6, scopeLine: 1, unit: !0) |
| ; CHECK: ![[T0_SP:[0-9]+]] = distinct !DISubprogram(name: "test_consts" |
| !6 = !DISubroutineType(types: !7) |
| !7 = !{!8} |
| !8 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) |
| !9 = !DILocalVariable(name: "var0", scope: !5, file: !1, line: 2, type: !8) |
| ; CHECK: ![[T0_VAR0:[0-9]+]] = !DILocalVariable(name: "var0", scope: ![[T0_SP]] |
| !10 = !DILocation(line: 0, scope: !5) |
| !11 = !DILocalVariable(name: "var1", scope: !5, file: !1, line: 2, type: !8) |
| ; CHECK: ![[T0_VAR1:[0-9]+]] = !DILocalVariable(name: "var1", scope: ![[T0_SP]] |
| !12 = !DILocalVariable(name: "var2", scope: !5, file: !1, line: 2, type: !8) |
| ; CHECK: ![[T0_VAR2:[0-9]+]] = !DILocalVariable(name: "var2", scope: ![[T0_SP]] |
| !13 = !DILocalVariable(name: "var3", scope: !5, file: !1, line: 2, type: !8) |
| ; CHECK: ![[T0_VAR3:[0-9]+]] = !DILocalVariable(name: "var3", scope: ![[T0_SP]] |
| !14 = distinct !DISubprogram(name: "test_target_indices", scope: !1, file: !1, line: 10, type: !6, scopeLine: 1, unit: !0) |
| ; CHECK: ![[T1_SP:[0-9]+]] = distinct !DISubprogram(name: "test_target_indices" |
| !15 = !DILocalVariable(name: "var0", scope: !14, file: !1, line: 11, type: !8) |
| ; CHECK: ![[T1_VAR0:[0-9]+]] = !DILocalVariable(name: "var0", scope: ![[T1_SP]] |
| !16 = !DILocation(line: 10, scope: !14) |
| !17 = !DILocalVariable(name: "var1", scope: !14, file: !1, line: 11, type: !8) |
| ; CHECK: ![[T1_VAR1:[0-9]+]] = !DILocalVariable(name: "var1", scope: ![[T1_SP]] |
| !18 = !DILocalVariable(name: "var2", scope: !14, file: !1, line: 11, type: !8) |
| ; CHECK: ![[T1_VAR2:[0-9]+]] = !DILocalVariable(name: "var2", scope: ![[T1_SP]] |
| !19 = !DILocalVariable(name: "var3", scope: !14, file: !1, line: 11, type: !8) |
| ; CHECK: ![[T1_VAR3:[0-9]+]] = !DILocalVariable(name: "var3", scope: ![[T1_SP]] |
| !20 = !DILocalVariable(name: "var4", scope: !14, file: !1, line: 11, type: !8) |
| ; CHECK: ![[T1_VAR4:[0-9]+]] = !DILocalVariable(name: "var4", scope: ![[T1_SP]] |
| !21 = distinct !DISubprogram(name: "test_target_index_defs", scope: !1, file: !1, line: 10, type: !6, scopeLine: 1, unit: !0) |
| !22 = !DILocalVariable(name: "var0", scope: !21, file: !1, line: 20, type: !8) |
| !23 = !DILocation(line: 10, scope: !21) |
| !24 = !DILocalVariable(name: "var1", scope: !21, file: !1, line: 20, type: !8) |
| !25 = !DILocalVariable(name: "var2", scope: !21, file: !1, line: 20, type: !8) |
| ... |
| |
| --- |
| # var0: Its debug value is set once in bb.0 and valid throughout the function. |
| # So a new DBG_VALUE will be added to the beginnings of all other BBs |
| # (bb.1, bb.2, and bb.3). |
| # var1: Its debug value is set in bb.0, but is reset to no info in bb.1. So a |
| # new DBG_VALUE will be added in the beginning of bb.1 and bb.2, but bb.3 |
| # will not, because its two predecesors (bb.1 and bb.2) have different |
| # debug values. |
| # var2: Its debug value is set both in bb.1 and bb.2 with the same value. bb.3 |
| # will have a new DBG_VALUE representing that value. |
| # var3: Its debug value is set both in bb.1 and bb.2 but with different values. |
| # bb.3 will NOT have a new DBG_VALUE instruction because its predecessors |
| # don't agree on a value. |
| # CHECK-LABEL: name: test_consts |
| name: test_consts |
| liveins: |
| - { reg: '$arguments' } |
| body: | |
| bb.0: |
| successors: %bb.1, %bb.2 |
| liveins: $arguments |
| DBG_VALUE 10, $noreg, !9, !DIExpression(), debug-location !10 |
| DBG_VALUE 20, $noreg, !11, !DIExpression(), debug-location !10 |
| %0:i32 = CONST_I32 1, implicit-def $arguments |
| BR_IF %bb.2, %0:i32, implicit-def $arguments |
| |
| ; CHECK: bb.1: |
| ; CHECK-DAG: DBG_VALUE 10, $noreg, ![[T0_VAR0]] |
| ; CHECK-DAG: DBG_VALUE 20, $noreg, ![[T0_VAR1]] |
| bb.1: |
| ; predecessors: %bb.0 |
| successors: %bb.3 |
| DBG_VALUE $noreg, $noreg, !11, !DIExpression(), debug-location !10 |
| DBG_VALUE 30, $noreg, !12, !DIExpression(), debug-location !10 |
| DBG_VALUE 30, $noreg, !13, !DIExpression(), debug-location !10 |
| BR %bb.3, implicit-def $arguments |
| |
| ; CHECK: bb.2: |
| ; CHECK-DAG: DBG_VALUE 10, $noreg, ![[T0_VAR0]] |
| ; CHECK-DAG: DBG_VALUE 20, $noreg, ![[T0_VAR1]] |
| bb.2: |
| ; predecessors: %bb.0 |
| successors: %bb.3 |
| DBG_VALUE 30, $noreg, !12, !DIExpression(), debug-location !10 |
| DBG_VALUE 40, $noreg, !13, !DIExpression(), debug-location !10 |
| BR %bb.3, implicit-def $arguments |
| |
| ; CHECK: bb.3: |
| ; CHECK-DAG: DBG_VALUE 10, $noreg, ![[T0_VAR0]] |
| ; CHECK-DAG: DBG_VALUE 30, $noreg, ![[T0_VAR2]] |
| ; CHECK-NOT: DBG_VALUE {{[0-9]+}}, $noreg, ![[T0_VAR1]] |
| ; CHECK-NOT: DBG_VALUE {{[0-9]+}}, $noreg, ![[T0_VAR3]] |
| bb.3: |
| ; predecessors: %bb.1, %bb.2 |
| RETURN implicit-def dead $arguments |
| ... |
| |
| --- |
| # var0: Its debug value is set once in bb.0 and valid throughout the function. |
| # So a new DBG_VALUE will be added to the beginnings of all other BBs |
| # (bb.1, bb.2, and bb.3). |
| # var1: Its debug value is set in bb.0, but is reset to no info back later in |
| # bb.0. So no DBG_VALUEs will be added in other BBs. |
| # var2: Its debug value is set both in bb.1 and bb.2 with the same value (The |
| # same kind (local) and same local index). bb.3 will have a new DBG_VALUE |
| # representing that value. |
| # var3: Its debug value is set both in bb.1 and bb.2 but with different values. |
| # Both are locals, but their indices are different. bb.3 will NOT have a |
| # new DBG_VALUE instruction because its predecessors don't agree on a |
| # value. |
| # var4: Its debug value is set both in bb.1 and bb.2 but with different values. |
| # They have different kinds; one is a local and the other is a stack |
| # operand. (Their index is the same, but it doesn't matter.) bb.3 will NOT |
| # have a new DBG_VALUE instruction because its predecessors don't agree on |
| # a value. |
| # CHECK-LABEL: name: test_target_indices |
| name: test_target_indices |
| liveins: |
| - { reg: '$arguments' } |
| body: | |
| bb.0: |
| successors: %bb.1, %bb.2 |
| liveins: $arguments |
| DBG_VALUE target-index(wasm-local), $noreg, !15, !DIExpression(), debug-location !16 |
| DBG_VALUE target-index(wasm-operand-stack) + 2, $noreg, !17, !DIExpression(), debug-location !16 |
| %0:i32 = CONST_I32 1, implicit-def $arguments |
| DBG_VALUE $noreg, $noreg, !17, !DIExpression(), debug-location !16 |
| BR_IF %bb.2, %0:i32, implicit-def $arguments |
| |
| ; CHECK: bb.1: |
| ; CHECK: DBG_VALUE target-index(wasm-local), $noreg, ![[T1_VAR0]] |
| bb.1: |
| ; predecessors: %bb.0 |
| successors: %bb.3 |
| DBG_VALUE target-index(wasm-local) + 2, $noreg, !18, !DIExpression(), debug-location !16 |
| DBG_VALUE target-index(wasm-local) + 3, $noreg, !19, !DIExpression(), debug-location !16 |
| DBG_VALUE target-index(wasm-operand-stack) + 3, $noreg, !20, !DIExpression(), debug-location !16 |
| BR %bb.3, implicit-def $arguments |
| |
| ; CHECK: bb.2: |
| ; CHECK: DBG_VALUE target-index(wasm-local), $noreg, ![[T1_VAR0]] |
| bb.2: |
| ; predecessors: %bb.0 |
| successors: %bb.3 |
| DBG_VALUE target-index(wasm-local) + 2, $noreg, !18, !DIExpression(), debug-location !16 |
| DBG_VALUE target-index(wasm-local) + 5, $noreg, !19, !DIExpression(), debug-location !16 |
| DBG_VALUE target-index(wasm-local) + 3, $noreg, !20, !DIExpression(), debug-location !16 |
| BR %bb.3, implicit-def $arguments |
| |
| ; CHECK: bb.3: |
| ; CHECK-DAG: DBG_VALUE target-index(wasm-local), $noreg, ![[T1_VAR0]] |
| ; CHECK-DAG: DBG_VALUE target-index(wasm-local) + 2, $noreg, ![[T1_VAR2]] |
| ; CHECK-NOT: DBG_VALUE target-index(wasm-local){{.*}}, $noreg, ![[T1_VAR3]] |
| ; CHECK-NOT: DBG_VALUE target-index(wasm-local){{.*}}, $noreg, ![[T1_VAR4]] |
| bb.3: |
| ; predecessors: %bb.1, %bb.2 |
| RETURN implicit-def dead $arguments |
| ... |
| |
| --- |
| # bb.0 defines DBG_VALUEs for local index 2 and 3. The DBG_VALUE for local index |
| # 2 is killed in bb.1 due to 'local.tee 2' there, and DBG_VALUE for local |
| # index 3 is killed in bb.2 because there is 'local.set 3' there. As a result, |
| # bb.3 shoudln't have any additional DBG_VALUEs added for those locals. |
| # CHECK-LABEL: name: test_target_index_defs |
| name: test_target_index_defs |
| liveins: |
| - { reg: '$arguments' } |
| body: | |
| bb.0: |
| successors: %bb.1, %bb.2 |
| liveins: $arguments |
| DBG_VALUE target-index(wasm-local) + 2, $noreg, !22, !DIExpression(), debug-location !23 |
| DBG_VALUE target-index(wasm-local) + 3, $noreg, !24, !DIExpression(), debug-location !23 |
| %0:i32 = CONST_I32 1, implicit-def $arguments |
| BR_IF %bb.2, %0:i32, implicit-def $arguments |
| |
| bb.1: |
| ; predecessors: %bb.0 |
| successors: %bb.3 |
| %0:i32 = CONST_I32 1, implicit-def $arguments |
| %1:i32 = LOCAL_TEE_I32 2, %0:i32, implicit-def $arguments |
| DROP_I32 killed %1:i32, implicit-def $arguments |
| BR %bb.3, implicit-def $arguments |
| |
| bb.2: |
| ; predecessors: %bb.0 |
| successors: %bb.3 |
| %0:i32 = CONST_I32 1, implicit-def $arguments |
| LOCAL_SET_I32 3, %0:i32, implicit-def $arguments |
| BR %bb.3, implicit-def $arguments |
| |
| ; CHECK: bb.3: |
| ; CHECK-NOT: DBG_VALUE target-index(wasm-local){{.*}} |
| bb.3: |
| ; predecessors: %bb.1, %bb.2 |
| RETURN implicit-def dead $arguments |
| ... |
