1# RUN: llc -start-before=prologepilog -filetype=obj -o %t %s 2# RUN: llvm-dwarfdump --name=obj1 %t | FileCheck %s --check-prefix=CHECKDWARF1 3# RUN: llvm-dwarfdump --name=obj2 %t | FileCheck %s --check-prefix=CHECKDWARF2 4# RUN: llvm-objdump -d %t | FileCheck %s --check-prefix=CHECKASM 5# 6# Test that the location for obj1 and obj2 in the debug information is 7# the same as the location used by load instructions. 8# 9# CHECKDWARF1: DW_AT_location (DW_OP_fbreg -1) 10# CHECKDWARF2: DW_AT_location (DW_OP_fbreg -2) 11# CHECKASM: ldurb w0, [x29, #-1] 12# CHECKASM: ldurb w1, [x29, #-2] 13--- | 14 ; ModuleID = 'wrong-callee-save-size-after-livedebugvariables.c' 15 source_filename = "wrong-callee-save-size-after-livedebugvariables.c" 16 target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128" 17 target triple = "aarch64-unknown-linux-gnu" 18 19 ; Function Attrs: noinline nounwind optnone 20 define dso_local i8 @foo() #0 !dbg !7 { 21 entry: 22 %obj1 = alloca i8, align 1 23 %obj2 = alloca i8, align 1 24 %obj3 = alloca [238 x i8], align 1 25 ret i8 undef, !dbg !24 26 } 27 28 declare dso_local i8 @bar(i8, i8, i8*) #0 29 30 attributes #0 = { noinline nounwind optnone "frame-pointer"="all" } 31 32 !llvm.dbg.cu = !{!0} 33 !llvm.module.flags = !{!3, !4, !5} 34 !llvm.ident = !{!6} 35 36 !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 10.0.0", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, nameTableKind: None) 37 !1 = !DIFile(filename: "wrong-callee-save-size-after-livedebugvariables.c", directory: "") 38 !2 = !{} 39 !3 = !{i32 2, !"Dwarf Version", i32 4} 40 !4 = !{i32 2, !"Debug Info Version", i32 3} 41 !5 = !{i32 1, !"wchar_size", i32 4} 42 !6 = !{!"clang version 10.0.0"} 43 !7 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 3, type: !8, scopeLine: 3, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !2) 44 !8 = !DISubroutineType(types: !9) 45 !9 = !{!10} 46 !10 = !DIBasicType(name: "char", size: 8, encoding: DW_ATE_unsigned_char) 47 !11 = !DILocalVariable(name: "obj1", scope: !7, file: !1, line: 4, type: !10) 48 !12 = !DILocation(line: 4, column: 8, scope: !7) 49 !13 = !DILocalVariable(name: "obj2", scope: !7, file: !1, line: 5, type: !10) 50 !14 = !DILocation(line: 5, column: 8, scope: !7) 51 !15 = !DILocalVariable(name: "obj3", scope: !7, file: !1, line: 6, type: !16) 52 !16 = !DICompositeType(tag: DW_TAG_array_type, baseType: !10, size: 1904, elements: !17) 53 !17 = !{!18} 54 !18 = !DISubrange(count: 238) 55 !19 = !DILocation(line: 6, column: 8, scope: !7) 56 !20 = !DILocation(line: 7, column: 14, scope: !7) 57 !21 = !DILocation(line: 7, column: 20, scope: !7) 58 !22 = !DILocation(line: 7, column: 27, scope: !7) 59 !23 = !DILocation(line: 7, column: 10, scope: !7) 60 !24 = !DILocation(line: 7, column: 3, scope: !7) 61 62... 63--- 64name: foo 65tracksRegLiveness: true 66frameInfo: 67 hasCalls: true 68fixedStack: [] 69stack: 70 - { id: 0, name: obj1, type: default, offset: 0, size: 1, alignment: 1, 71 stack-id: default, callee-saved-register: '', callee-saved-restored: true, 72 local-offset: -1, debug-info-variable: '!11', debug-info-expression: '!DIExpression()', 73 debug-info-location: '!12' } 74 - { id: 1, name: obj2, type: default, offset: 0, size: 1, alignment: 1, 75 stack-id: default, callee-saved-register: '', callee-saved-restored: true, 76 local-offset: -2, debug-info-variable: '!13', debug-info-expression: '!DIExpression()', 77 debug-info-location: '!14' } 78 - { id: 2, name: obj3, type: default, offset: 0, size: 238, alignment: 1, 79 stack-id: default, callee-saved-register: '', callee-saved-restored: true, 80 local-offset: -240, debug-info-variable: '!15', debug-info-expression: '!DIExpression()', 81 debug-info-location: '!19' } 82body: | 83 bb.1.entry: 84 renamable $x2 = ADDXri %stack.2.obj3, 0, 0 85 renamable $w0 = LDRBBui %stack.0.obj1, 0, debug-location !20 :: (load 1 from %ir.obj1) 86 renamable $w1 = LDRBBui %stack.1.obj2, 0, debug-location !21 :: (load 1 from %ir.obj2) 87 ADJCALLSTACKDOWN 0, 0, implicit-def $sp, implicit $sp, debug-location !23 88 BL @bar, csr_aarch64_aapcs, implicit-def $lr, implicit $sp, implicit killed $w0, implicit killed $w1, implicit killed $x2, implicit-def $w0, debug-location !23 89 ADJCALLSTACKUP 0, 0, implicit-def $sp, implicit $sp, debug-location !23 90 RET_ReallyLR implicit killed $w0, debug-location !24 91 92... 93