93 lines
4.3 KiB
Plaintext
93 lines
4.3 KiB
Plaintext
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# RUN: llc -start-before=prologepilog -filetype=obj -o %t %s
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# RUN: llvm-dwarfdump --name=obj1 %t | FileCheck %s --check-prefix=CHECKDWARF1
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# RUN: llvm-dwarfdump --name=obj2 %t | FileCheck %s --check-prefix=CHECKDWARF2
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# RUN: llvm-objdump -d %t | FileCheck %s --check-prefix=CHECKASM
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#
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# Test that the location for obj1 and obj2 in the debug information is
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# the same as the location used by load instructions.
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#
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# CHECKDWARF1: DW_AT_location (DW_OP_fbreg -1)
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# CHECKDWARF2: DW_AT_location (DW_OP_fbreg -2)
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# CHECKASM: ldurb w0, [x29, #-1]
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# CHECKASM: ldurb w1, [x29, #-2]
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--- |
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; ModuleID = 'wrong-callee-save-size-after-livedebugvariables.c'
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source_filename = "wrong-callee-save-size-after-livedebugvariables.c"
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target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
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target triple = "aarch64-unknown-linux-gnu"
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; Function Attrs: noinline nounwind optnone
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define dso_local i8 @foo() #0 !dbg !7 {
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entry:
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%obj1 = alloca i8, align 1
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%obj2 = alloca i8, align 1
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%obj3 = alloca [238 x i8], align 1
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ret i8 undef, !dbg !24
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}
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declare dso_local i8 @bar(i8, i8, i8*) #0
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attributes #0 = { noinline nounwind optnone "frame-pointer"="all" }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4, !5}
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!llvm.ident = !{!6}
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!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)
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!1 = !DIFile(filename: "wrong-callee-save-size-after-livedebugvariables.c", directory: "")
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!2 = !{}
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!3 = !{i32 2, !"Dwarf Version", i32 4}
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!4 = !{i32 2, !"Debug Info Version", i32 3}
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!5 = !{i32 1, !"wchar_size", i32 4}
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!6 = !{!"clang version 10.0.0"}
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!7 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 3, type: !8, scopeLine: 3, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !2)
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!8 = !DISubroutineType(types: !9)
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!9 = !{!10}
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!10 = !DIBasicType(name: "char", size: 8, encoding: DW_ATE_unsigned_char)
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!11 = !DILocalVariable(name: "obj1", scope: !7, file: !1, line: 4, type: !10)
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!12 = !DILocation(line: 4, column: 8, scope: !7)
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!13 = !DILocalVariable(name: "obj2", scope: !7, file: !1, line: 5, type: !10)
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!14 = !DILocation(line: 5, column: 8, scope: !7)
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!15 = !DILocalVariable(name: "obj3", scope: !7, file: !1, line: 6, type: !16)
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!16 = !DICompositeType(tag: DW_TAG_array_type, baseType: !10, size: 1904, elements: !17)
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!17 = !{!18}
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!18 = !DISubrange(count: 238)
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!19 = !DILocation(line: 6, column: 8, scope: !7)
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!20 = !DILocation(line: 7, column: 14, scope: !7)
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!21 = !DILocation(line: 7, column: 20, scope: !7)
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!22 = !DILocation(line: 7, column: 27, scope: !7)
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!23 = !DILocation(line: 7, column: 10, scope: !7)
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!24 = !DILocation(line: 7, column: 3, scope: !7)
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...
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---
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name: foo
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tracksRegLiveness: true
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frameInfo:
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hasCalls: true
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fixedStack: []
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stack:
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- { id: 0, name: obj1, type: default, offset: 0, size: 1, alignment: 1,
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stack-id: default, callee-saved-register: '', callee-saved-restored: true,
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local-offset: -1, debug-info-variable: '!11', debug-info-expression: '!DIExpression()',
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debug-info-location: '!12' }
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- { id: 1, name: obj2, type: default, offset: 0, size: 1, alignment: 1,
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stack-id: default, callee-saved-register: '', callee-saved-restored: true,
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local-offset: -2, debug-info-variable: '!13', debug-info-expression: '!DIExpression()',
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debug-info-location: '!14' }
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- { id: 2, name: obj3, type: default, offset: 0, size: 238, alignment: 1,
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stack-id: default, callee-saved-register: '', callee-saved-restored: true,
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local-offset: -240, debug-info-variable: '!15', debug-info-expression: '!DIExpression()',
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debug-info-location: '!19' }
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body: |
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bb.1.entry:
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renamable $x2 = ADDXri %stack.2.obj3, 0, 0
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renamable $w0 = LDRBBui %stack.0.obj1, 0, debug-location !20 :: (load 1 from %ir.obj1)
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renamable $w1 = LDRBBui %stack.1.obj2, 0, debug-location !21 :: (load 1 from %ir.obj2)
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ADJCALLSTACKDOWN 0, 0, implicit-def $sp, implicit $sp, debug-location !23
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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
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ADJCALLSTACKUP 0, 0, implicit-def $sp, implicit $sp, debug-location !23
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RET_ReallyLR implicit killed $w0, debug-location !24
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...
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