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78 lines
2.7 KiB
78 lines
2.7 KiB
4 months ago
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# Verify that a CFI instruction with no debug location
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# does not result in a line-0 location in the assembler.
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# RUN: %llc_dwarf -start-after=prologepilog -march=x86-64 -use-unknown-locations=Enable %s -o - | FileCheck %s
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#
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# CHECK-NOT: .loc 1 0
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# CHECK: .cfi_def_cfa_offset
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# UNSUPPORTED: cygwin,windows-gnu,windows-msvc
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--- |
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; ModuleID = 'no-cfi-loc.ll'
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source_filename = "no-cfi-loc.ll"
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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define void @foo() !dbg !6 {
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entry:
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call void @bar(), !dbg !8
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ret void, !dbg !9
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}
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declare void @bar()
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; Function Attrs: nounwind
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declare void @llvm.stackprotector(i8*, i8**) #0
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attributes #0 = { nounwind }
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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_C99, file: !1, producer: "clang version 4.0.0 (trunk 288778)", isOptimized: false, runtimeVersion: 0, emissionKind: LineTablesOnly, enums: !2)
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!1 = !DIFile(filename: "t.c", directory: "/home/probinson/projects/scratch")
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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 = !{!"clang version 4.0.0 (trunk 288778)"}
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!6 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 2, type: !7, isLocal: false, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2)
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!7 = !DISubroutineType(types: !2)
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!8 = !DILocation(line: 3, column: 2, scope: !6)
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!9 = !DILocation(line: 4, column: 1, scope: !6)
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...
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---
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name: foo
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alignment: 16
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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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tracksRegLiveness: true
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calleeSavedRegisters: [ '$bh', '$bl', '$bp', '$bpl', '$bx', '$ebp', '$ebx',
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'$rbp', '$rbx', '$r12', '$r13', '$r14', '$r15',
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'$r12b', '$r13b', '$r14b', '$r15b', '$r12d', '$r13d',
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'$r14d', '$r15d', '$r12w', '$r13w', '$r14w', '$r15w' ]
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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: 8
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offsetAdjustment: 0
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maxAlignment: 0
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adjustsStack: true
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hasCalls: true
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maxCallFrameSize: 0
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hasOpaqueSPAdjustment: false
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hasVAStart: false
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hasMustTailInVarArgFunc: false
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body: |
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bb.0.entry:
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frame-setup PUSH64r undef $rax, implicit-def $rsp, implicit $rsp, debug-location !8
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CFI_INSTRUCTION def_cfa_offset 16
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CALL64pcrel32 @bar, csr_64, implicit $rsp, implicit-def $rsp, debug-location !8
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$rax = POP64r implicit-def $rsp, implicit $rsp, debug-location !9
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RET 0, debug-location !9
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...
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