| ; 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: {{.*}}Proc{{.*}}Sym { |
| ; OBJ: Kind: S_GPROC32_ID (0x1147) |
| ; OBJ: DisplayName: f |
| ; OBJ: } |
| ; OBJ: FrameProcSym { |
| ; OBJ: Kind: S_FRAMEPROC (0x1012) |
| ; OBJ: TotalFrameBytes: 0x8 |
| ; OBJ: LocalFramePtrReg: VFRAME (0x7536) |
| ; OBJ: ParamFramePtrReg: VFRAME (0x7536) |
| ; OBJ: } |
| ; OBJ: LocalSym { |
| ; OBJ: Kind: S_LOCAL (0x113E) |
| ; OBJ: Type: NonTrivial (0x{{.*}}) |
| ; OBJ: Flags [ (0x1) |
| ; OBJ: IsParameter (0x1) |
| ; OBJ: ] |
| ; OBJ: VarName: a |
| ; OBJ: } |
| ; OBJ: DefRangeFramePointerRelSym { |
| ; OBJ: Offset: 4 |
| ; OBJ: } |
| ; OBJ: LocalSym { |
| ; OBJ: Type: int (0x74) |
| ; OBJ: Flags [ (0x1) |
| ; OBJ: IsParameter (0x1) |
| ; OBJ: ] |
| ; OBJ: VarName: b |
| ; OBJ: } |
| ; OBJ: DefRangeFramePointerRelSym { |
| ; OBJ: Offset: 8 |
| ; OBJ: } |
| ; FIXME: Retain unused. |
| ; OBJ: LocalSym { |
| ; OBJ: Type: int (0x74) |
| ; OBJ: Flags [ (0x1) |
| ; OBJ: IsParameter (0x1) |
| ; OBJ: ] |
| ; OBJ: VarName: c |
| ; OBJ: } |
| ; OBJ: DefRangeFramePointerRelSym { |
| ; OBJ: Offset: 16 |
| ; 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(ptr inalloca(<{ %struct.NonTrivial, i32, i32, i32 }>)) local_unnamed_addr #0 !dbg !7 { |
| entry: |
| %a = getelementptr inbounds <{ %struct.NonTrivial, i32, i32, i32 }>, ptr %0, i32 0, i32 0 |
| %b = getelementptr inbounds <{ %struct.NonTrivial, i32, i32, i32 }>, ptr %0, i32 0, i32 1 |
| call void @llvm.dbg.declare(metadata ptr %b, metadata !22, metadata !24), !dbg !26 |
| call void @llvm.dbg.declare(metadata ptr %a, metadata !23, metadata !24), !dbg !27 |
| %1 = load i32, ptr %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 }>, ptr %0, i32 0, i32 3 |
| call void @llvm.dbg.declare(metadata ptr %c, metadata !20, metadata !24), !dbg !25 |
| %2 = load i32, ptr %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 }>, ptr %0, i32 0, i32 0, i32 0, !dbg !39 |
| %3 = load i32, ptr %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"(ptr 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"(ptr) 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, retainedNodes: !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) |