1 # Verify that a CFI instruction with no debug location
2 # does not result in a line-0 location in the assembler.
3 # RUN: %llc_dwarf -start-after=prologepilog -march=x86-64 -use-unknown-locations=Enable %s -o - | FileCheck %s
6 # CHECK: .cfi_def_cfa_offset
7 # UNSUPPORTED: cygwin,windows-gnu,windows-msvc
10 ; ModuleID = 'no-cfi-loc.ll'
11 source_filename = "no-cfi-loc.ll"
12 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
14 define void @foo() !dbg !6 {
16 call void @bar(), !dbg !8
22 ; Function Attrs: nounwind
23 declare void @llvm.stackprotector(i8*, i8**) #0
25 attributes #0 = { nounwind }
28 !llvm.module.flags = !{!3, !4}
31 !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)
32 !1 = !DIFile(filename: "t.c", directory: "/home/probinson/projects/scratch")
34 !3 = !{i32 2, !"Dwarf Version", i32 4}
35 !4 = !{i32 2, !"Debug Info Version", i32 3}
36 !5 = !{!"clang version 4.0.0 (trunk 288778)"}
37 !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)
38 !7 = !DISubroutineType(types: !2)
39 !8 = !DILocation(line: 3, column: 2, scope: !6)
40 !9 = !DILocation(line: 4, column: 1, scope: !6)
46 exposesReturnsTwice: false
48 regBankSelected: false
50 tracksRegLiveness: true
51 calleeSavedRegisters: [ '$bh', '$bl', '$bp', '$bpl', '$bx', '$ebp', '$ebx',
52 '$rbp', '$rbx', '$r12', '$r13', '$r14', '$r15',
53 '$r12b', '$r13b', '$r14b', '$r15b', '$r12d', '$r13d',
54 '$r14d', '$r15d', '$r12w', '$r13w', '$r14w', '$r15w' ]
56 isFrameAddressTaken: false
57 isReturnAddressTaken: false
66 hasOpaqueSPAdjustment: false
68 hasMustTailInVarArgFunc: false
71 frame-setup PUSH64r undef $rax, implicit-def $rsp, implicit $rsp, debug-location !8
72 CFI_INSTRUCTION def_cfa_offset 16
73 CALL64pcrel32 @bar, csr_64, implicit $rsp, implicit-def $rsp, debug-location !8
74 $rax = POP64r implicit-def $rsp, implicit $rsp, debug-location !9
75 RET 0, debug-location !9