diff options
Diffstat (limited to 'test/DebugInfo/X86/dbg-declare-inalloca.ll')
| -rw-r--r-- | test/DebugInfo/X86/dbg-declare-inalloca.ll | 199 |
1 files changed, 199 insertions, 0 deletions
diff --git a/test/DebugInfo/X86/dbg-declare-inalloca.ll b/test/DebugInfo/X86/dbg-declare-inalloca.ll new file mode 100644 index 0000000000000..e3f5c7e629b87 --- /dev/null +++ b/test/DebugInfo/X86/dbg-declare-inalloca.ll @@ -0,0 +1,199 @@ +; RUN: llc -O0 < %s | FileCheck %s --check-prefix=CHECK --check-prefix=DEBUG +; RUN: llc < %s | FileCheck %s +; RUN: llc -filetype=obj -O0 < %s | llvm-readobj -codeview - | FileCheck %s --check-prefix=OBJ + +; IR generated by the following source: +; struct NonTrivial { +; NonTrivial();// : x(42) {} +; ~NonTrivial();// {} +; int x; +; }; +; extern "C" void g(int);// {} +; extern "C" void h(int);// {} +; extern "C" void f(NonTrivial a, int b, int unused, int c) { +; if (b) { +; g(c); +; } else { +; h(a.x); +; } +; (void)unused; +; } +; //int main() { +; // NonTrivial x; +; // f(x, 1, 2, 3); +; //} +; +; Remove C++ comments to have a complete, debuggable program. + +; We don't need (or want) DBG_VALUE instructions to describe the location of +; inalloca arguments. We want frame indices in the side table, especially at +; -O0, because they are reliable across the entire function and don't require +; any propagation or analysis. + +; CHECK: _f: # @f +; CHECK: Lfunc_begin0: +; CHECK-NOT: DEBUG_VALUE +; CHECK: [[start:Ltmp[0-9]+]]: +; CHECK-NOT: DEBUG_VALUE +; CHECK: cmpl +; CHECK: calll _g +; CHECK: calll _h +; CHECK: jmp "??1NonTrivial@@QAE@XZ" +; CHECK: [[end:Ltmp[0-9]+]]: +; CHECK: Lfunc_end0: + +; FIXME: Optimized debug info should preserve this. +; DEBUG: .short 4414 # Record kind: S_LOCAL +; DEBUG: .asciz "a" +; DEBUG: .cv_def_range [[start]] [[end]] + +; CHECK: .short 4414 # Record kind: S_LOCAL +; CHECK: .asciz "b" +; CHECK: .cv_def_range [[start]] [[end]] + +; CHECK: .short 4414 # Record kind: S_LOCAL +; CHECK: .asciz "c" +; CHECK: .cv_def_range [[start]] [[end]] + +; OBJ-LABEL: ProcStart { +; OBJ: Kind: S_GPROC32_ID (0x1147) +; OBJ: DisplayName: f +; OBJ: } +; OBJ: Local { +; OBJ: Type: NonTrivial (0x1007) +; OBJ: Flags [ (0x1) +; OBJ: IsParameter (0x1) +; OBJ: ] +; OBJ: VarName: a +; OBJ: } +; OBJ: DefRangeRegisterRel { +; OBJ: BaseRegister: 21 +; OBJ: BasePointerOffset: 12 +; OBJ: } +; OBJ: Local { +; OBJ: Type: int (0x74) +; OBJ: Flags [ (0x1) +; OBJ: IsParameter (0x1) +; OBJ: ] +; OBJ: VarName: b +; OBJ: } +; OBJ: DefRangeRegisterRel { +; OBJ: BaseRegister: 21 +; OBJ: BasePointerOffset: 16 +; OBJ: } +; FIXME: Retain unused. +; OBJ: Local { +; OBJ: Type: int (0x74) +; OBJ: Flags [ (0x1) +; OBJ: IsParameter (0x1) +; OBJ: ] +; OBJ: VarName: c +; OBJ: } +; OBJ: DefRangeRegisterRel { +; OBJ: BaseRegister: 21 +; OBJ: BasePointerOffset: 24 +; OBJ: } +; OBJ-LABEL: ProcEnd { +; OBJ: } + + +; ModuleID = 't.cpp' +source_filename = "t.cpp" +target datalayout = "e-m:x-p:32:32-i64:64-f80:32-n8:16:32-a:0:32-S32" +target triple = "i386-pc-windows-msvc19.10.24728" + +%struct.NonTrivial = type { i32 } + +; Function Attrs: nounwind +define void @f(<{ %struct.NonTrivial, i32, i32, i32 }>* inalloca) local_unnamed_addr #0 !dbg !7 { +entry: + %a = getelementptr inbounds <{ %struct.NonTrivial, i32, i32, i32 }>, <{ %struct.NonTrivial, i32, i32, i32 }>* %0, i32 0, i32 0 + %b = getelementptr inbounds <{ %struct.NonTrivial, i32, i32, i32 }>, <{ %struct.NonTrivial, i32, i32, i32 }>* %0, i32 0, i32 1 + tail call void @llvm.dbg.declare(metadata i32* %c, metadata !20, metadata !24), !dbg !25 + tail call void @llvm.dbg.declare(metadata i32* %b, metadata !22, metadata !24), !dbg !26 + tail call void @llvm.dbg.declare(metadata %struct.NonTrivial* %a, metadata !23, metadata !24), !dbg !27 + %1 = load i32, i32* %b, align 4, !dbg !28, !tbaa !30 + %tobool = icmp eq i32 %1, 0, !dbg !28 + br i1 %tobool, label %if.else, label %if.then, !dbg !34 + +if.then: ; preds = %entry + %c = getelementptr inbounds <{ %struct.NonTrivial, i32, i32, i32 }>, <{ %struct.NonTrivial, i32, i32, i32 }>* %0, i32 0, i32 3 + %2 = load i32, i32* %c, align 4, !dbg !35, !tbaa !30 + tail call void @g(i32 %2) #4, !dbg !37 + br label %if.end, !dbg !38 + +if.else: ; preds = %entry + %x = getelementptr inbounds <{ %struct.NonTrivial, i32, i32, i32 }>, <{ %struct.NonTrivial, i32, i32, i32 }>* %0, i32 0, i32 0, i32 0, !dbg !39 + %3 = load i32, i32* %x, align 4, !dbg !39, !tbaa !41 + tail call void @h(i32 %3) #4, !dbg !43 + br label %if.end + +if.end: ; preds = %if.else, %if.then + tail call x86_thiscallcc void @"\01??1NonTrivial@@QAE@XZ"(%struct.NonTrivial* nonnull %a) #4, !dbg !44 + ret void, !dbg !44 +} + +; Function Attrs: nounwind readnone speculatable +declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 + +declare void @g(i32) local_unnamed_addr + +declare void @h(i32) local_unnamed_addr + +; Function Attrs: nounwind +declare x86_thiscallcc void @"\01??1NonTrivial@@QAE@XZ"(%struct.NonTrivial*) unnamed_addr #3 + +attributes #0 = { nounwind } +attributes #1 = { nounwind readnone speculatable } +attributes #3 = { nounwind } +attributes #4 = { nounwind } + +!llvm.dbg.cu = !{!0} +!llvm.module.flags = !{!3, !4, !5} +!llvm.ident = !{!6} + +!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 5.0.0 ", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2) +!1 = !DIFile(filename: "t.cpp", directory: "C:\5Csrc\5Cllvm-project\5Cbuild", checksumkind: CSK_MD5, checksum: "e41e3fda2a91b52e121ed6c29a209eae") +!2 = !{} +!3 = !{i32 1, !"NumRegisterParameters", i32 0} +!4 = !{i32 2, !"CodeView", i32 1} +!5 = !{i32 2, !"Debug Info Version", i32 3} +!6 = !{!"clang version 5.0.0 "} +!7 = distinct !DISubprogram(name: "f", scope: !1, file: !1, line: 8, type: !8, isLocal: false, isDefinition: true, scopeLine: 8, flags: DIFlagPrototyped, isOptimized: true, unit: !0, variables: !19) +!8 = !DISubroutineType(types: !9) +!9 = !{null, !10, !13, !13, !13} +!10 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "NonTrivial", file: !1, line: 1, size: 32, elements: !11, identifier: ".?AUNonTrivial@@") +!11 = !{!12, !14, !18} +!12 = !DIDerivedType(tag: DW_TAG_member, name: "x", scope: !10, file: !1, line: 4, baseType: !13, size: 32) +!13 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) +!14 = !DISubprogram(name: "NonTrivial", scope: !10, file: !1, line: 2, type: !15, isLocal: false, isDefinition: false, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: true) +!15 = !DISubroutineType(cc: DW_CC_BORLAND_thiscall, types: !16) +!16 = !{null, !17} +!17 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !10, size: 32, flags: DIFlagArtificial | DIFlagObjectPointer) +!18 = !DISubprogram(name: "~NonTrivial", scope: !10, file: !1, line: 3, type: !15, isLocal: false, isDefinition: false, scopeLine: 3, flags: DIFlagPrototyped, isOptimized: true) +!19 = !{!20, !21, !22, !23} +!20 = !DILocalVariable(name: "c", arg: 4, scope: !7, file: !1, line: 8, type: !13) +!21 = !DILocalVariable(name: "unused", arg: 3, scope: !7, file: !1, line: 8, type: !13) +!22 = !DILocalVariable(name: "b", arg: 2, scope: !7, file: !1, line: 8, type: !13) +!23 = !DILocalVariable(name: "a", arg: 1, scope: !7, file: !1, line: 8, type: !10) +!24 = !DIExpression() +!25 = !DILocation(line: 8, column: 56, scope: !7) +!26 = !DILocation(line: 8, column: 37, scope: !7) +!27 = !DILocation(line: 8, column: 30, scope: !7) +!28 = !DILocation(line: 9, column: 7, scope: !29) +!29 = distinct !DILexicalBlock(scope: !7, file: !1, line: 9, column: 7) +!30 = !{!31, !31, i64 0} +!31 = !{!"int", !32, i64 0} +!32 = !{!"omnipotent char", !33, i64 0} +!33 = !{!"Simple C++ TBAA"} +!34 = !DILocation(line: 9, column: 7, scope: !7) +!35 = !DILocation(line: 10, column: 7, scope: !36) +!36 = distinct !DILexicalBlock(scope: !29, file: !1, line: 9, column: 10) +!37 = !DILocation(line: 10, column: 5, scope: !36) +!38 = !DILocation(line: 11, column: 3, scope: !36) +!39 = !DILocation(line: 12, column: 9, scope: !40) +!40 = distinct !DILexicalBlock(scope: !29, file: !1, line: 11, column: 10) +!41 = !{!42, !31, i64 0} +!42 = !{!"?AUNonTrivial@@", !31, i64 0} +!43 = !DILocation(line: 12, column: 5, scope: !40) +!44 = !DILocation(line: 15, column: 1, scope: !7) |