1# RUN: llc -march=x86-64 -run-pass none -o - %s | FileCheck %s
2# This test ensures that the MIR parser parses the machine instruction's
3# debug location metadata correctly.
4
5--- |
6
7  define i32 @test(i32 %x) #0 !dbg !4 {
8  entry:
9    %x.addr = alloca i32, align 4
10    store i32 %x, i32* %x.addr, align 4
11    call void @llvm.dbg.declare(metadata i32* %x.addr, metadata !12, metadata !DIExpression()), !dbg !13
12    %0 = load i32, i32* %x.addr, align 4, !dbg !14
13    ret i32 %0, !dbg !14
14  }
15
16  define i32 @test_typed_immediates(i32 %x) #0 {
17  entry:
18    %x.addr = alloca i32, align 4
19    store i32 %x, i32* %x.addr, align 4
20    call void @llvm.dbg.declare(metadata i32* %x.addr, metadata !12, metadata !DIExpression()), !dbg !13
21    %0 = load i32, i32* %x.addr, align 4, !dbg !14
22    ret i32 %0, !dbg !14
23  }
24
25  define i32 @test_mir_created(i32 %x) #0 !dbg !15 {
26  entry:
27    %x.addr = alloca i32, align 4
28    store i32 %x, i32* %x.addr, align 4
29    %0 = load i32, i32* %x.addr, align 4
30    %1 = load i32, i32* %x.addr, align 4
31    %2 = load i32, i32* %x.addr, align 4
32    %3 = load i32, i32* %x.addr, align 4
33    ret i32 %0, !dbg !16
34  }
35
36  declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
37
38  attributes #0 = { nounwind "frame-pointer"="none" }
39  attributes #1 = { nounwind readnone }
40
41  !llvm.dbg.cu = !{!0}
42  !llvm.module.flags = !{!9, !10}
43  !llvm.ident = !{!11}
44
45  !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.7.0", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
46  !1 = !DIFile(filename: "test.ll", directory: "")
47  !2 = !{}
48  !4 = distinct !DISubprogram(name: "test", scope: !5, file: !5, line: 4, type: !6, isLocal: false, isDefinition: true, scopeLine: 4, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2)
49  !5 = !DIFile(filename: "test.c", directory: "")
50  !6 = !DISubroutineType(types: !7)
51  !7 = !{!8, !8}
52  !8 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
53  !9 = !{i32 2, !"Dwarf Version", i32 4}
54  !10 = !{i32 2, !"Debug Info Version", i32 3}
55  !11 = !{!"clang version 3.7.0"}
56  !12 = !DILocalVariable(name: "x", arg: 1, scope: !4, file: !5, line: 4, type: !8)
57  !13 = !DILocation(line: 4, scope: !4)
58  !14 = !DILocation(line: 8, scope: !4)
59  !15 = distinct !DISubprogram(name: "test_mir_created", scope: !5, file: !5, line: 10, type: !6, isLocal: false, isDefinition: true, scopeLine: 10, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2)
60  !16 = !DILocation(line: 20, scope: !15)
61
62...
63---
64name:            test
65tracksRegLiveness: true
66registers:
67  - { id: 0, class: gr32 }
68frameInfo:
69  maxAlignment:  4
70stack:
71  - { id: 0, name: x.addr, size: 4, alignment: 4 }
72body: |
73  bb.0.entry:
74    liveins: $edi
75    ; CHECK: DBG_VALUE $noreg, 0, !11, !DIExpression(), debug-location !12
76    ; CHECK: DBG_VALUE $noreg, 0, !11, !DIExpression(), debug-location !12
77    ; CHECK: $eax = COPY %0, debug-location !13
78    ; CHECK: RETQ $eax, debug-location !13
79    %0 = COPY $edi
80    DBG_VALUE _, 0, !12, !DIExpression(), debug-location !13
81    ; Test whether debug-use is still recognized for compatibility with old
82    ; files.
83    DBG_VALUE debug-use _, 0, !12, !DIExpression(), debug-location !13
84    MOV32mr %stack.0.x.addr, 1, _, 0, _, %0
85    $eax = COPY %0, debug-location !14
86    RETQ $eax, debug-location !14
87...
88---
89name:            test_typed_immediates
90tracksRegLiveness: true
91registers:
92  - { id: 0, class: gr32 }
93frameInfo:
94  maxAlignment:  4
95stack:
96  - { id: 0, name: x.addr, size: 4, alignment: 4 }
97body: |
98  bb.0.entry:
99    liveins: $edi
100
101    %0 = COPY $edi
102  ; CHECK:      DBG_VALUE $noreg, i32 0, !11, !DIExpression()
103  ; CHECK-NEXT: DBG_VALUE $noreg, i64 -22, !11, !DIExpression()
104  ; CHECK-NEXT: DBG_VALUE $noreg, i128 123492148938512984928424384934328985928, !11, !DIExpression()
105    DBG_VALUE _, i32 0, !12, !DIExpression(), debug-location !13
106    DBG_VALUE _, i64 -22, !12, !DIExpression(), debug-location !13
107    DBG_VALUE _, i128 123492148938512984928424384934328985928, !12, !DIExpression(), debug-location !13
108    MOV32mr %stack.0.x.addr, 1, _, 0, _, %0
109    $eax = COPY %0
110    RETQ $eax
111...
112---
113name:            test_mir_created
114tracksRegLiveness: true
115registers:
116  - { id: 0, class: gr32 }
117frameInfo:
118  maxAlignment:  4
119stack:
120  - { id: 0, name: x.addr, size: 4, alignment: 4 }
121body: |
122  bb.0.entry:
123    liveins: $edi
124
125    %0 = COPY $edi
126  ; CHECK-LABEL: name: test_mir_created
127  ; CHECK:       MOV32mr %stack.0.x.addr, 1, $noreg, 0, $noreg, %0, debug-location !DILocation(line: 1, scope: !14)
128  ; CHECK:       MOV32mr %stack.0.x.addr, 1, $noreg, 0, $noreg, %0, debug-location !DILocation(line: 2, column: 2, scope: !14)
129  ; CHECK:       MOV32mr %stack.0.x.addr, 1, $noreg, 0, $noreg, %0, debug-location !DILocation(line: 3, column: 2, scope: !14, isImplicitCode: true)
130  ; CHECK:       MOV32mr %stack.0.x.addr, 1, $noreg, 0, $noreg, %0, debug-location !DILocation(line: 4, scope: !14, inlinedAt: !15)
131  ; CHECK:       MOV32mr %stack.0.x.addr, 1, $noreg, 0, $noreg, %0, debug-location !DILocation(line: 5, scope: !14, inlinedAt: !DILocation(line: 4, scope: !14))
132    MOV32mr %stack.0.x.addr, 1, _, 0, _, %0, debug-location !DILocation(line: 1, scope: !15)
133    MOV32mr %stack.0.x.addr, 1, _, 0, _, %0, debug-location !DILocation(line: 2, column: 2, scope: !15)
134    MOV32mr %stack.0.x.addr, 1, _, 0, _, %0, debug-location !DILocation(line: 3, column: 2, scope: !15, isImplicitCode: true)
135    MOV32mr %stack.0.x.addr, 1, _, 0, _, %0, debug-location !DILocation(line: 4, scope: !15, inlinedAt: !16)
136    MOV32mr %stack.0.x.addr, 1, _, 0, _, %0, debug-location !DILocation(line: 5, scope: !15, inlinedAt: !DILocation(line: 4, scope: !15))
137    $eax = COPY %0
138    RETQ $eax
139...
140