| ; RUN: llc -verify-machineinstrs -filetype=obj -mtriple=aarch64-- \ |
| ; RUN: -enable-machine-outliner < %s | llvm-dwarfdump - | FileCheck %s |
| |
| ; Ensure that the MachineOutliner produces valid DWARF when it creates outlined |
| ; functions. Check that the outlined function has a subprogram, and that the |
| ; expected DWARF attributes are present. |
| |
| ; The outlined function appears after bar. Skip past the functions we don't |
| ; care about. |
| ; CHECK: DW_TAG_compile_unit |
| ; CHECK-DAG: DW_AT_name ("foo") |
| ; CHECK-DAG: DW_AT_name ("p") |
| |
| ; Check the high address of bar. This is one past the end of bar. It should be |
| ; the beginning of the outlined function. |
| ; CHECK: DW_AT_high_pc ([[ONE_PAST_BAR:0x[a-f0-9]+]]) |
| ; CHECK-NEXT: DW_AT_frame_base (DW_OP_reg29 W29) |
| ; CHECK-NEXT: DW_AT_name ("bar") |
| |
| ; Check the outlined function's DWARF. |
| ; CHECK-DAG: DW_TAG_subprogram |
| ; CHECK-NEXT: DW_AT_low_pc ([[ONE_PAST_BAR]]) |
| ; CHECK-NEXT: DW_AT_high_pc (0x{{[0-9a-f]+}}) |
| ; CHECK-NEXT: DW_AT_frame_base (DW_OP_reg29 W29) |
| ; CHECK-NEXT: DW_AT_MIPS_linkage_name ("[[NAME:OUTLINED_FUNCTION_[0-9]+]]") |
| ; CHECK-NEXT: DW_AT_name ("[[NAME]]") |
| ; CHECK-NEXT: DW_AT_artificial (0x01) |
| ; CHECK-NEXT: DW_AT_external (0x01) |
| |
| define void @foo() #0 !dbg !8 { |
| entry: |
| %p = alloca i32*, align 8 |
| call void @llvm.dbg.declare(metadata i32** %p, metadata !11, metadata !DIExpression()), !dbg !14 |
| %0 = load i32*, i32** %p, align 8, !dbg !15 |
| %incdec.ptr = getelementptr inbounds i32, i32* %0, i32 1, !dbg !15 |
| store i32* %incdec.ptr, i32** %p, align 8, !dbg !15 |
| call void @foo(), !dbg !16 |
| ret void, !dbg !17 |
| } |
| |
| declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 |
| |
| define void @bar() #0 !dbg !18 { |
| entry: |
| %p = alloca i32*, align 8 |
| call void @llvm.dbg.declare(metadata i32** %p, metadata !19, metadata !DIExpression()), !dbg !20 |
| %0 = load i32*, i32** %p, align 8, !dbg !21 |
| %incdec.ptr = getelementptr inbounds i32, i32* %0, i32 1, !dbg !21 |
| store i32* %incdec.ptr, i32** %p, align 8, !dbg !21 |
| call void @foo(), !dbg !22 |
| ret void, !dbg !23 |
| } |
| |
| attributes #0 = { nounwind ssp uwtable "frame-pointer"="all" } |
| attributes #1 = { nounwind readnone speculatable } |
| |
| !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", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2) |
| !1 = !DIFile(filename: "something.c", directory: "somewhere") |
| !2 = !{} |
| !3 = !{i32 2, !"Dwarf Version", i32 2} |
| !4 = !{i32 2, !"Debug Info Version", i32 3} |
| !5 = !{i32 1, !"wchar_size", i32 4} |
| !6 = !{i32 7, !"PIC Level", i32 2} |
| !7 = !{!"clang"} |
| !8 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 1, type: !9, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2) |
| !9 = !DISubroutineType(types: !10) |
| !10 = !{null} |
| !11 = !DILocalVariable(name: "p", scope: !8, file: !1, line: 2, type: !12) |
| !12 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !13, size: 64) |
| !13 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) |
| !14 = !DILocation(line: 2, column: 8, scope: !8) |
| !15 = !DILocation(line: 3, column: 4, scope: !8) |
| !16 = !DILocation(line: 4, column: 3, scope: !8) |
| !17 = !DILocation(line: 5, column: 1, scope: !8) |
| !18 = distinct !DISubprogram(name: "bar", scope: !1, file: !1, line: 7, type: !9, isLocal: false, isDefinition: true, scopeLine: 8, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2) |
| !19 = !DILocalVariable(name: "p", scope: !18, file: !1, line: 9, type: !12) |
| !20 = !DILocation(line: 9, column: 8, scope: !18) |
| !21 = !DILocation(line: 10, column: 4, scope: !18) |
| !22 = !DILocation(line: 11, column: 3, scope: !18) |
| !23 = !DILocation(line: 12, column: 1, scope: !18) |
| |