| ; RUN: llc < %s -mtriple i386-unknown-unknown -O1 -stop-before=finalize-isel | FileCheck %s |
| |
| ; Test case is designed to show the differences related to how implicit values |
| ; are handled by SelectionDAGBuilder::EmitFuncArgumentDbgValue. |
| ; |
| ; One purpose is to validate a bugfix in DIExpression::isImplicit() related |
| ; to DIExpressions containing both DW_OP_stack_value and DW_OP_LLVM_fragment. |
| ; |
| ; IR generated by: |
| ; |
| ; // clang -S -target i386-- -Wall -g -O1 -mllvm -stop-before=finalize-isel |
| ; |
| ; typedef struct { |
| ; int x; |
| ; int *y; |
| ; } bar; |
| ; |
| ; bar* func1(bar *p1, long p2, bar p3) |
| ; { |
| ; bar *foo1 = p1+18; |
| ; p3.y = &((p1+18)->x); |
| ; return p1; |
| ; } |
| |
| |
| target datalayout = "e-m:e-p:32:32-p270:32:32-p271:32:32-p272:64:64-f64:32:64-f80:32-n8:16:32-S128" |
| target triple = "i386-unknown-unknown" |
| |
| %struct.bar = type { i32, i32* } |
| |
| ; Function Attrs: norecurse nounwind readnone |
| define dso_local %struct.bar* @func1(%struct.bar* readnone returned %0, i32 %1, i32 %2, i32* nocapture readnone %3) local_unnamed_addr #0 !dbg !8 { |
| ; CHECK-DAG: DBG_VALUE %fixed-stack.1, 0, {{.*}}, !DIExpression(DW_OP_LLVM_fragment, 0, 32), |
| ; CHECK-DAG: DBG_VALUE %fixed-stack.0, 0, {{.*}}, !DIExpression(DW_OP_LLVM_fragment, 32, 32), |
| ; CHECK-DAG: DBG_VALUE %fixed-stack.3, 0, {{.*}}, !DIExpression(), |
| ; CHECK-DAG: DBG_VALUE %fixed-stack.2, 0, {{.*}}, !DIExpression(), |
| ; CHECK-DAG: DBG_VALUE %fixed-stack.3, 0, {{.*}}, !DIExpression(DW_OP_plus_uconst, 144, DW_OP_stack_value), |
| ; CHECK-DAG: DBG_VALUE %fixed-stack.3, 0, {{.*}}, !DIExpression(DW_OP_plus_uconst, 144, DW_OP_stack_value, DW_OP_LLVM_fragment, 32, 32), |
| |
| call void @llvm.dbg.value(metadata i32 %2, metadata !24, metadata !DIExpression(DW_OP_LLVM_fragment, 0, 32)), !dbg !26 |
| call void @llvm.dbg.value(metadata i32* %3, metadata !24, metadata !DIExpression(DW_OP_LLVM_fragment, 32, 32)), !dbg !26 |
| call void @llvm.dbg.value(metadata %struct.bar* %0, metadata !22, metadata !DIExpression()), !dbg !26 |
| call void @llvm.dbg.value(metadata i32 %1, metadata !23, metadata !DIExpression()), !dbg !26 |
| call void @llvm.dbg.value(metadata %struct.bar* %0, metadata !25, metadata !DIExpression(DW_OP_plus_uconst, 144, DW_OP_stack_value)), !dbg !26 |
| call void @llvm.dbg.value(metadata %struct.bar* %0, metadata !24, metadata !DIExpression(DW_OP_plus_uconst, 144, DW_OP_stack_value, DW_OP_LLVM_fragment, 32, 32)), !dbg !26 |
| ret %struct.bar* %0, !dbg !27 |
| } |
| |
| ; Function Attrs: nounwind readnone speculatable willreturn |
| declare void @llvm.dbg.value(metadata, metadata, metadata) #1 |
| |
| attributes #0 = { norecurse nounwind readnone } |
| attributes #1 = { nounwind readnone speculatable willreturn } |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!3, !4, !5, !6} |
| !llvm.ident = !{!7} |
| |
| !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 10.0.0 (trunk 375507)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, nameTableKind: None) |
| !1 = !DIFile(filename: "example.c", directory: "/home/ubuntu") |
| !2 = !{} |
| !3 = !{i32 1, !"NumRegisterParameters", i32 0} |
| !4 = !{i32 2, !"Dwarf Version", i32 4} |
| !5 = !{i32 2, !"Debug Info Version", i32 3} |
| !6 = !{i32 1, !"wchar_size", i32 4} |
| !7 = !{!"clang version 10.0.0 (trunk 375507)"} |
| !8 = distinct !DISubprogram(name: "func1", scope: !9, file: !9, line: 6, type: !10, scopeLine: 7, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !21) |
| !9 = !DIFile(filename: "./example.c", directory: "/home/ubuntu") |
| !10 = !DISubroutineType(types: !11) |
| !11 = !{!12, !12, !20, !13} |
| !12 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !13, size: 32) |
| !13 = !DIDerivedType(tag: DW_TAG_typedef, name: "bar", file: !9, line: 4, baseType: !14) |
| !14 = distinct !DICompositeType(tag: DW_TAG_structure_type, file: !9, line: 1, size: 64, elements: !15) |
| !15 = !{!16, !18} |
| !16 = !DIDerivedType(tag: DW_TAG_member, name: "x", scope: !14, file: !9, line: 2, baseType: !17, size: 32) |
| !17 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) |
| !18 = !DIDerivedType(tag: DW_TAG_member, name: "y", scope: !14, file: !9, line: 3, baseType: !19, size: 32, offset: 32) |
| !19 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !17, size: 32) |
| !20 = !DIBasicType(name: "long int", size: 32, encoding: DW_ATE_signed) |
| !21 = !{!22, !23, !24, !25} |
| !22 = !DILocalVariable(name: "p1", arg: 1, scope: !8, file: !9, line: 6, type: !12) |
| !23 = !DILocalVariable(name: "p2", arg: 2, scope: !8, file: !9, line: 6, type: !20) |
| !24 = !DILocalVariable(name: "p3", arg: 3, scope: !8, file: !9, line: 6, type: !13) |
| !25 = !DILocalVariable(name: "foo1", scope: !8, file: !9, line: 8, type: !12) |
| !26 = !DILocation(line: 0, scope: !8) |
| !27 = !DILocation(line: 10, column: 4, scope: !8) |