1 # RUN: llc -o - %s -O0 -regalloc=fast -run-pass=livedebugvalues | \
2 # RUN: FileCheck %s -implicit-check-not=DBG_VALUE
4 target triple = "arm64-apple-ios12.1.0"
8 define void @f1(i32 %x) !dbg !6 {
10 %var = add i32 %x, 1, !dbg !12
11 call void @llvm.dbg.value(metadata i32 %var, metadata !9, metadata !DIExpression()), !dbg !12
12 br label %artificial-bb-1, !dbg !13
15 br label %artificial-bb-2
18 %invisible = add i32 %var, 1
19 br label %return, !dbg !14
22 call void @use(i32 %var)
26 declare void @llvm.dbg.value(metadata, metadata, metadata) #0
27 declare void @llvm.stackprotector(i8*, i8**) #1
29 attributes #0 = { nounwind readnone speculatable }
30 attributes #1 = { nounwind }
33 !llvm.debugify = !{!3, !4}
34 !llvm.module.flags = !{!5}
36 !0 = distinct !DICompileUnit(language: DW_LANG_C, file: !1, producer: "debugify", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
37 !1 = !DIFile(filename: "compiler-gen-bbs-livedebugvalues.ll", directory: "/")
41 !5 = !{i32 2, !"Debug Info Version", i32 3}
42 !6 = distinct !DISubprogram(name: "f1", linkageName: "f1", scope: null, file: !1, line: 1, type: !7, isLocal: false, isDefinition: true, scopeLine: 1, isOptimized: true, unit: !0, retainedNodes: !8)
43 !7 = !DISubroutineType(types: !2)
45 !9 = !DILocalVariable(name: "1", scope: !6, file: !1, line: 1, type: !10)
46 !10 = !DIBasicType(name: "ty32", size: 32, encoding: DW_ATE_unsigned)
47 !11 = !DILocalVariable(name: "2", scope: !6, file: !1, line: 4, type: !10)
48 !12 = !DILocation(line: 1, column: 1, scope: !6)
49 !13 = !DILocation(line: 2, column: 1, scope: !6)
50 !14 = !DILocation(line: 0, column: 1, scope: !6)
51 !15 = !DILocation(line: 4, column: 1, scope: !6)
55 # CHECK-LABEL: name: f1
61 tracksRegLiveness: true
69 - { id: 0, type: spill-slot, offset: -20, size: 4, alignment: 4, stack-id: default }
70 - { id: 1, type: spill-slot, offset: -8, size: 8, alignment: 8, stack-id: default,
71 callee-saved-register: '$lr' }
72 - { id: 2, type: spill-slot, offset: -16, size: 8, alignment: 8, stack-id: default,
73 callee-saved-register: '$fp' }
75 ; CHECK-LABEL: bb.0.entry:
79 $sp = frame-setup SUBXri $sp, 32, 0
80 frame-setup STPXi killed $fp, killed $lr, $sp, 2 :: (store 8 into %stack.2), (store 8 into %stack.1)
81 frame-setup CFI_INSTRUCTION def_cfa_offset 32
82 frame-setup CFI_INSTRUCTION offset $w30, -8, debug-location !12
83 frame-setup CFI_INSTRUCTION offset $w29, -16, debug-location !12
84 renamable $w0 = ADDWri killed renamable $w0, 1, 0, debug-location !12
85 DBG_VALUE renamable $w0, $noreg, !9, !DIExpression(), debug-location !12
86 STRWui killed $w0, $sp, 3 :: (store 4 into %stack.0)
87 DBG_VALUE $sp, 0, !9, !DIExpression(DW_OP_plus_uconst, 12), debug-location !12
89 ; CHECK: DBG_VALUE renamable $w0, $noreg, !9, !DIExpression(), debug-location !12
90 ; CHECK-NEXT: STRWui killed $w0, $sp, 3 :: (store 4 into %stack.0)
91 ; CHECK-NEXT: DBG_VALUE $sp, 0, !9, !DIExpression(DW_OP_plus_uconst, 12)
92 ; CHECK-NEXT: DBG_VALUE $sp, 0, !9, !DIExpression(DW_OP_plus_uconst, 12)
95 ; CHECK-LABEL: bb.1.artificial-bb-1:
96 ; CHECK: DBG_VALUE $sp, 0, !9, !DIExpression(DW_OP_plus_uconst, 12)
99 ; CHECK-LABEL: bb.2.artificial-bb-2:
100 ; CHECK: DBG_VALUE $sp, 0, !9, !DIExpression(DW_OP_plus_uconst, 12)
103 ; CHECK-LABEL: bb.3.return:
104 ; CHECK: DBG_VALUE $sp, 0, !9, !DIExpression(DW_OP_plus_uconst, 12)
106 $w0 = LDRWui $sp, 3 :: (load 4 from %stack.0)
107 BL @use, csr_aarch64_aapcs, implicit-def $lr, implicit $sp, implicit killed $w0
108 $fp, $lr = frame-destroy LDPXi $sp, 2, debug-location !15 :: (load 8 from %stack.2), (load 8 from %stack.1)
109 $sp = frame-destroy ADDXri $sp, 32, 0, debug-location !15
110 RET undef $lr, debug-location !15