126 lines
5.3 KiB
Text
126 lines
5.3 KiB
Text
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# RUN: llc -O2 %s -start-after=arm-mve-vpt-opts -stop-after=arm-prera-ldst-opt -o - | FileCheck %s
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# CHECK: DBG_VALUE 13, $noreg, !11, !DIExpression(), debug-location !13
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# This test checks to make sure that a DBG_VALUE that uses an immediate doesn't get zero-ed out by a DBG_VALUE that comes later in the basic block, and describes the same variable.
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--- |
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; ModuleID = '/Users/shubham/Development/llvm-project/llvm/test/DebugInfo/Generic/incorrect-variable-debugloc1.ll'
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source_filename = "/Users/shubham/Development/llvm-project/llvm/test/DebugInfo/Generic/incorrect-variable-debugloc1.ll"
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target datalayout = "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64"
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target triple = "armv8-unknown-linux"
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; Function Attrs: uwtable
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define i32 @main() !dbg !6 {
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entry:
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%c = alloca i32, align 4
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tail call void @llvm.dbg.value(metadata i32 13, metadata !11, metadata !DIExpression()), !dbg !13
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store volatile i32 13, ptr %c, align 4, !dbg !14
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%call = tail call i32 @_Z4funcv(), !dbg !15
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tail call void @llvm.dbg.value(metadata i32 %call, metadata !11, metadata !DIExpression()), !dbg !13
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store volatile i32 %call, ptr %c, align 4, !dbg !15
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tail call void @llvm.dbg.value(metadata ptr %c, metadata !11, metadata !DIExpression(DW_OP_deref)), !dbg !13
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%c.0.c.0. = load volatile i32, ptr %c, align 4, !dbg !16
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ret i32 %c.0.c.0., !dbg !16
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}
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declare i32 @_Z4funcv()
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declare void @llvm.dbg.value(metadata, metadata, metadata)
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4}
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!llvm.ident = !{!5}
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!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 3.6.0 (trunk 223522)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
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!1 = !DIFile(filename: "test.cpp", directory: "/home/kromanova/ngh/ToT_latest/llvm/test/DebugInfo")
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!2 = !{}
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!3 = !{i32 2, !"Dwarf Version", i32 2}
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!4 = !{i32 2, !"Debug Info Version", i32 3}
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!5 = !{!"clang version 3.6.0 (trunk 223522)"}
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!6 = distinct !DISubprogram(name: "main", scope: !1, file: !1, line: 3, type: !7, scopeLine: 4, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !10)
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!7 = !DISubroutineType(types: !8)
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!8 = !{!9}
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!9 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!10 = !{!11}
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!11 = !DILocalVariable(name: "c", scope: !6, file: !1, line: 5, type: !12)
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!12 = !DIDerivedType(tag: DW_TAG_volatile_type, baseType: !9)
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!13 = !DILocation(line: 5, column: 16, scope: !6)
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!14 = !DILocation(line: 5, column: 3, scope: !6)
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!15 = !DILocation(line: 6, column: 7, scope: !6)
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!16 = !DILocation(line: 7, column: 3, scope: !6)
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...
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---
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name: main
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alignment: 4
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exposesReturnsTwice: false
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legalized: false
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regBankSelected: false
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selected: false
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failedISel: false
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tracksRegLiveness: true
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hasWinCFI: false
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callsEHReturn: false
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callsUnwindInit: false
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hasEHCatchret: false
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hasEHScopes: false
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hasEHFunclets: false
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isOutlined: false
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debugInstrRef: false
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failsVerification: false
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tracksDebugUserValues: false
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registers:
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- { id: 0, class: gpr, preferred-register: '' }
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- { id: 1, class: gpr, preferred-register: '' }
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- { id: 2, class: gpr, preferred-register: '' }
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liveins: []
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frameInfo:
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isFrameAddressTaken: false
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isReturnAddressTaken: false
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hasStackMap: false
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hasPatchPoint: false
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stackSize: 0
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offsetAdjustment: 0
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maxAlignment: 4
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adjustsStack: true
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hasCalls: true
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stackProtector: ''
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functionContext: ''
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maxCallFrameSize: 0
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cvBytesOfCalleeSavedRegisters: 0
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hasOpaqueSPAdjustment: false
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hasVAStart: false
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hasMustTailInVarArgFunc: false
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hasTailCall: false
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localFrameSize: 4
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savePoint: ''
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restorePoint: ''
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fixedStack: []
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stack:
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- { id: 0, name: c, type: default, offset: 0, size: 4, alignment: 4,
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stack-id: default, callee-saved-register: '', callee-saved-restored: true,
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local-offset: -4, debug-info-variable: '', debug-info-expression: '',
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debug-info-location: '' }
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callSites: []
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debugValueSubstitutions: []
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constants: []
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machineFunctionInfo: {}
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body: |
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bb.0.entry:
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DBG_VALUE 13, $noreg, !11, !DIExpression(), debug-location !13
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%0:gpr = MOVi 13, 14 /* CC::al */, $noreg, $noreg
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STRi12 killed %0, %stack.0.c, 0, 14 /* CC::al */, $noreg, debug-location !14 :: (volatile store (s32) into %ir.c)
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ADJCALLSTACKDOWN 0, 0, 14 /* CC::al */, $noreg, implicit-def dead $sp, implicit $sp, debug-location !15
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BL @_Z4funcv, csr_aapcs, implicit-def dead $lr, implicit $sp, implicit-def $sp, implicit-def $r0, debug-location !15
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ADJCALLSTACKUP 0, -1, 14 /* CC::al */, $noreg, implicit-def dead $sp, implicit $sp, debug-location !15
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%1:gpr = COPY $r0, debug-location !15
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DBG_VALUE %1, $noreg, !11, !DIExpression(), debug-location !13
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STRi12 %1, %stack.0.c, 0, 14 /* CC::al */, $noreg, debug-location !15 :: (volatile store (s32) into %ir.c)
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DBG_VALUE %stack.0.c, $noreg, !11, !DIExpression(DW_OP_deref), debug-location !13
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%2:gpr = LDRi12 %stack.0.c, 0, 14 /* CC::al */, $noreg, debug-location !16 :: (volatile dereferenceable load (s32) from %ir.c)
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$r0 = COPY %2, debug-location !16
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BX_RET 14 /* CC::al */, $noreg, implicit $r0, debug-location !16
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...
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