| # RUN: llc -start-before=prologepilog -filetype=obj -o %t %s |
| # RUN: llvm-dwarfdump --name=obj1 %t | FileCheck %s --check-prefix=CHECKDWARF1 |
| # RUN: llvm-dwarfdump --name=obj2 %t | FileCheck %s --check-prefix=CHECKDWARF2 |
| # RUN: llvm-objdump --no-print-imm-hex -d %t | FileCheck %s --check-prefix=CHECKASM |
| # |
| # Test that the location for obj1 and obj2 in the debug information is |
| # the same as the location used by load instructions. |
| # |
| # CHECKDWARF1: DW_AT_location (DW_OP_fbreg -1) |
| # CHECKDWARF2: DW_AT_location (DW_OP_fbreg -2) |
| # CHECKASM: ldurb w0, [x29, #-1] |
| # CHECKASM: ldurb w1, [x29, #-2] |
| --- | |
| ; ModuleID = 'wrong-callee-save-size-after-livedebugvariables.c' |
| source_filename = "wrong-callee-save-size-after-livedebugvariables.c" |
| target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128" |
| target triple = "aarch64-unknown-linux-gnu" |
| |
| ; Function Attrs: noinline nounwind optnone |
| define dso_local i8 @foo() #0 !dbg !7 { |
| entry: |
| %obj1 = alloca i8, align 1 |
| %obj2 = alloca i8, align 1 |
| %obj3 = alloca [238 x i8], align 1 |
| ret i8 undef, !dbg !24 |
| } |
| |
| declare dso_local i8 @bar(i8, i8, i8*) #0 |
| |
| attributes #0 = { noinline nounwind optnone "frame-pointer"="all" } |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!3, !4, !5} |
| !llvm.ident = !{!6} |
| |
| !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) |
| !1 = !DIFile(filename: "wrong-callee-save-size-after-livedebugvariables.c", directory: "") |
| !2 = !{} |
| !3 = !{i32 2, !"Dwarf Version", i32 4} |
| !4 = !{i32 2, !"Debug Info Version", i32 3} |
| !5 = !{i32 1, !"wchar_size", i32 4} |
| !6 = !{!"clang version 10.0.0"} |
| !7 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 3, type: !8, scopeLine: 3, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !2) |
| !8 = !DISubroutineType(types: !9) |
| !9 = !{!10} |
| !10 = !DIBasicType(name: "char", size: 8, encoding: DW_ATE_unsigned_char) |
| !11 = !DILocalVariable(name: "obj1", scope: !7, file: !1, line: 4, type: !10) |
| !12 = !DILocation(line: 4, column: 8, scope: !7) |
| !13 = !DILocalVariable(name: "obj2", scope: !7, file: !1, line: 5, type: !10) |
| !14 = !DILocation(line: 5, column: 8, scope: !7) |
| !15 = !DILocalVariable(name: "obj3", scope: !7, file: !1, line: 6, type: !16) |
| !16 = !DICompositeType(tag: DW_TAG_array_type, baseType: !10, size: 1904, elements: !17) |
| !17 = !{!18} |
| !18 = !DISubrange(count: 238) |
| !19 = !DILocation(line: 6, column: 8, scope: !7) |
| !20 = !DILocation(line: 7, column: 14, scope: !7) |
| !21 = !DILocation(line: 7, column: 20, scope: !7) |
| !22 = !DILocation(line: 7, column: 27, scope: !7) |
| !23 = !DILocation(line: 7, column: 10, scope: !7) |
| !24 = !DILocation(line: 7, column: 3, scope: !7) |
| |
| ... |
| --- |
| name: foo |
| tracksRegLiveness: true |
| frameInfo: |
| hasCalls: true |
| fixedStack: [] |
| stack: |
| - { id: 0, name: obj1, type: default, offset: 0, size: 1, alignment: 1, |
| stack-id: default, callee-saved-register: '', callee-saved-restored: true, |
| local-offset: -1, debug-info-variable: '!11', debug-info-expression: '!DIExpression()', |
| debug-info-location: '!12' } |
| - { id: 1, name: obj2, type: default, offset: 0, size: 1, alignment: 1, |
| stack-id: default, callee-saved-register: '', callee-saved-restored: true, |
| local-offset: -2, debug-info-variable: '!13', debug-info-expression: '!DIExpression()', |
| debug-info-location: '!14' } |
| - { id: 2, name: obj3, type: default, offset: 0, size: 238, alignment: 1, |
| stack-id: default, callee-saved-register: '', callee-saved-restored: true, |
| local-offset: -240, debug-info-variable: '!15', debug-info-expression: '!DIExpression()', |
| debug-info-location: '!19' } |
| body: | |
| bb.1.entry: |
| renamable $x2 = ADDXri %stack.2.obj3, 0, 0 |
| renamable $w0 = LDRBBui %stack.0.obj1, 0, debug-location !20 :: (load (s8) from %ir.obj1) |
| renamable $w1 = LDRBBui %stack.1.obj2, 0, debug-location !21 :: (load (s8) from %ir.obj2) |
| ADJCALLSTACKDOWN 0, 0, implicit-def $sp, implicit $sp, debug-location !23 |
| 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 |
| ADJCALLSTACKUP 0, 0, implicit-def $sp, implicit $sp, debug-location !23 |
| RET_ReallyLR implicit killed $w0, debug-location !24 |
| |
| ... |