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| # Verify that a CFI instruction with no debug location
# does not result in a line-0 location in the assembler.
# RUN: %llc_dwarf -start-after=prologepilog -march=x86-64 -use-unknown-locations=Enable %s -o - | FileCheck %s
#
# CHECK-NOT: .loc 1 0
# CHECK: .cfi_def_cfa_offset
# UNSUPPORTED: cygwin,windows-gnu,windows-msvc
--- |
; ModuleID = 'no-cfi-loc.ll'
source_filename = "no-cfi-loc.ll"
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
define void @foo() !dbg !6 {
entry:
call void @bar(), !dbg !8
ret void, !dbg !9
}
declare void @bar()
; Function Attrs: nounwind
declare void @llvm.stackprotector(i8*, i8**) #0
attributes #0 = { nounwind }
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!3, !4}
!llvm.ident = !{!5}
!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)
!1 = !DIFile(filename: "t.c", directory: "/home/probinson/projects/scratch")
!2 = !{}
!3 = !{i32 2, !"Dwarf Version", i32 4}
!4 = !{i32 2, !"Debug Info Version", i32 3}
!5 = !{!"clang version 4.0.0 (trunk 288778)"}
!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)
!7 = !DISubroutineType(types: !2)
!8 = !DILocation(line: 3, column: 2, scope: !6)
!9 = !DILocation(line: 4, column: 1, scope: !6)
...
---
name: foo
alignment: 16
exposesReturnsTwice: false
legalized: false
regBankSelected: false
selected: false
tracksRegLiveness: true
calleeSavedRegisters: [ '$bh', '$bl', '$bp', '$bpl', '$bx', '$ebp', '$ebx',
'$rbp', '$rbx', '$r12', '$r13', '$r14', '$r15',
'$r12b', '$r13b', '$r14b', '$r15b', '$r12d', '$r13d',
'$r14d', '$r15d', '$r12w', '$r13w', '$r14w', '$r15w' ]
frameInfo:
isFrameAddressTaken: false
isReturnAddressTaken: false
hasStackMap: false
hasPatchPoint: false
stackSize: 8
offsetAdjustment: 0
maxAlignment: 0
adjustsStack: true
hasCalls: true
maxCallFrameSize: 0
hasOpaqueSPAdjustment: false
hasVAStart: false
hasMustTailInVarArgFunc: false
body: |
bb.0.entry:
frame-setup PUSH64r undef $rax, implicit-def $rsp, implicit $rsp, debug-location !8
CFI_INSTRUCTION def_cfa_offset 16
CALL64pcrel32 @bar, csr_64, implicit $rsp, implicit-def $rsp, debug-location !8
$rax = POP64r implicit-def $rsp, implicit $rsp, debug-location !9
RET 0, debug-location !9
...
|