1# Check that subsequent .loc 0 0 directives are collapsed.
2
3# RUN: llc -start-before=machine-cp -O2 -filetype=asm -mtriple=x86_64-apple-macosx10.9.0 -o - %s | FileCheck %s
4
5# CHECK: Ltmp0:
6# CHECK: .loc 1 0 0 prologue_end
7# CHECK-NOT: .loc 1 0 0
8# CHECK: .loc 1 37 1
9
10--- |
11  ; ModuleID = '<stdin>'
12  source_filename = "<stdin>"
13  target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
14  target triple = "x86_64-apple-macosx10.9.0"
15
16  %swift.opaque = type opaque
17  %swift.metadata_response = type { %swift.type*, i64 }
18  %swift.type = type { i64 }
19
20  define hidden swiftcc void @"$S4main1fyyF"() !dbg !5 {
21  entry:
22    %s1.addr = alloca i8*, align 8
23    %0 = bitcast i8** %s1.addr to %swift.opaque**
24    store %swift.opaque* null, %swift.opaque** %0, align 8
25    %1 = call swiftcc %swift.metadata_response @"$S16resilient_struct4SizeVMa"(i64 0) #1, !dbg !10
26    %2 = extractvalue %swift.metadata_response %1, 0, !dbg !10
27    %3 = bitcast %swift.type* %2 to i8***, !dbg !10
28    %4 = getelementptr inbounds i8**, i8*** %3, i64 -1, !dbg !10
29    ret void, !dbg !12
30  }
31
32  declare swiftcc %swift.metadata_response @"$S16resilient_struct4SizeVMa"(i64)
33
34  ; Function Attrs: nounwind
35  declare void @llvm.stackprotector(i8*, i8**) #0
36
37  attributes #0 = { nounwind }
38  attributes #1 = { nounwind readnone }
39
40  !llvm.dbg.cu = !{!0}
41  !llvm.module.flags = !{!3, !4}
42
43  !0 = distinct !DICompileUnit(language: DW_LANG_Swift, file: !1, producer: "Swift version 4.2.1-dev effective-3.4.1 (LLVM 4ba03d9389, Clang 78aa734eee, Swift f4134ebef6)", isOptimized: false, runtimeVersion: 4, emissionKind: FullDebug, enums: !2, imports: !2)
44  !1 = !DIFile(filename: "struct_resilience.swift", directory: "/Users/jonas/swift")
45  !2 = !{}
46  !3 = !{i32 2, !"Dwarf Version", i32 4}
47  !4 = !{i32 2, !"Debug Info Version", i32 3}
48  !5 = distinct !DISubprogram(name: "f", linkageName: "$S4main1fyyF", scope: !0, file: !6, line: 23, type: !7, scopeLine: 23, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !2)
49  !6 = !DIFile(filename: "struct_resilience.swift", directory: "/Users/jonas/swift/swift/test/DebugInfo")
50  !7 = !DISubroutineType(types: !8)
51  !8 = !{!9}
52  !9 = !DICompositeType(tag: DW_TAG_structure_type, name: "$SytD", file: !6, elements: !2, runtimeLang: DW_LANG_Swift, identifier: "$SytD")
53  !10 = !DILocation(line: 0, scope: !11)
54  !11 = distinct !DILexicalBlock(scope: !5, file: !6, line: 23, column: 10)
55  !12 = !DILocation(line: 37, column: 1, scope: !11)
56
57...
58---
59name:            '$S4main1fyyF'
60alignment:       16
61exposesReturnsTwice: false
62legalized:       false
63regBankSelected: false
64selected:        false
65failedISel:      false
66tracksRegLiveness: true
67hasWinCFI:       false
68registers:       []
69liveins:         []
70frameInfo:
71  isFrameAddressTaken: false
72  isReturnAddressTaken: false
73  hasStackMap:     false
74  hasPatchPoint:   false
75  stackSize:       0
76  offsetAdjustment: 0
77  maxAlignment:    8
78  adjustsStack:    false
79  hasCalls:        true
80  stackProtector:  ''
81  maxCallFrameSize: 4294967295
82  cvBytesOfCalleeSavedRegisters: 0
83  hasOpaqueSPAdjustment: false
84  hasVAStart:      false
85  hasMustTailInVarArgFunc: false
86  localFrameSize:  0
87  savePoint:       ''
88  restorePoint:    ''
89fixedStack:      []
90stack:
91  - { id: 0, name: s1.addr, type: default, offset: 0, size: 8, alignment: 8,
92      stack-id: default, callee-saved-register: '', callee-saved-restored: true,
93      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
94constants:       []
95body:             |
96  bb.0.entry:
97    MOV64mi32 %stack.0.s1.addr, 1, $noreg, 0, $noreg, 0 :: (store 8 into %ir.0)
98    ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp, debug-location !10
99    dead $edi = MOV32r0 implicit-def dead $eflags, implicit-def $rdi, debug-location !10
100    CALL64pcrel32 @"$S16resilient_struct4SizeVMa", csr_64, implicit $rsp, implicit $ssp, implicit killed $rdi, implicit-def $rsp, implicit-def $ssp, implicit-def dead $rax, implicit-def dead $rdx, debug-location !10
101    ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp, debug-location !10
102    RET 0, debug-location !12
103
104...
105