112 lines
4.2 KiB
Plaintext
112 lines
4.2 KiB
Plaintext
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# RUN: llc -o - %s -O0 -regalloc=fast -run-pass=livedebugvalues | \
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# RUN: FileCheck %s -implicit-check-not=DBG_VALUE
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--- |
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target triple = "arm64-apple-ios12.1.0"
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declare void @use(i32)
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define void @f1(i32 %x) !dbg !6 {
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entry:
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%var = add i32 %x, 1, !dbg !12
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call void @llvm.dbg.value(metadata i32 %var, metadata !9, metadata !DIExpression()), !dbg !12
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br label %artificial-bb-1, !dbg !13
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artificial-bb-1:
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br label %artificial-bb-2
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artificial-bb-2:
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%invisible = add i32 %var, 1
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br label %return, !dbg !14
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return:
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call void @use(i32 %var)
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ret void, !dbg !15
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}
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declare void @llvm.dbg.value(metadata, metadata, metadata) #0
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declare void @llvm.stackprotector(i8*, i8**) #1
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attributes #0 = { nounwind readnone speculatable }
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attributes #1 = { nounwind }
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!llvm.dbg.cu = !{!0}
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!llvm.debugify = !{!3, !4}
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!llvm.module.flags = !{!5}
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!0 = distinct !DICompileUnit(language: DW_LANG_C, file: !1, producer: "debugify", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
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!1 = !DIFile(filename: "compiler-gen-bbs-livedebugvalues.ll", directory: "/")
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!2 = !{}
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!3 = !{i32 6}
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!4 = !{i32 2}
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!5 = !{i32 2, !"Debug Info Version", i32 3}
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!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)
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!7 = !DISubroutineType(types: !2)
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!8 = !{!9, !11}
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!9 = !DILocalVariable(name: "1", scope: !6, file: !1, line: 1, type: !10)
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!10 = !DIBasicType(name: "ty32", size: 32, encoding: DW_ATE_unsigned)
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!11 = !DILocalVariable(name: "2", scope: !6, file: !1, line: 4, type: !10)
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!12 = !DILocation(line: 1, column: 1, scope: !6)
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!13 = !DILocation(line: 2, column: 1, scope: !6)
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!14 = !DILocation(line: 0, column: 1, scope: !6)
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!15 = !DILocation(line: 4, column: 1, scope: !6)
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...
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---
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# CHECK-LABEL: name: f1
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name: f1
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alignment: 4
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legalized: true
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regBankSelected: true
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selected: true
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tracksRegLiveness: true
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frameInfo:
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stackSize: 32
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maxAlignment: 8
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adjustsStack: true
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hasCalls: true
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maxCallFrameSize: 0
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stack:
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- { id: 0, type: spill-slot, offset: -20, size: 4, alignment: 4, stack-id: default }
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- { id: 1, type: spill-slot, offset: -8, size: 8, alignment: 8, stack-id: default,
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callee-saved-register: '$lr' }
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- { id: 2, type: spill-slot, offset: -16, size: 8, alignment: 8, stack-id: default,
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callee-saved-register: '$fp' }
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body: |
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; CHECK-LABEL: bb.0.entry:
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bb.0.entry:
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liveins: $w0, $lr
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$sp = frame-setup SUBXri $sp, 32, 0
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frame-setup STPXi killed $fp, killed $lr, $sp, 2 :: (store 8 into %stack.2), (store 8 into %stack.1)
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frame-setup CFI_INSTRUCTION def_cfa_offset 32
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frame-setup CFI_INSTRUCTION offset $w30, -8, debug-location !12
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frame-setup CFI_INSTRUCTION offset $w29, -16, debug-location !12
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renamable $w0 = ADDWri killed renamable $w0, 1, 0, debug-location !12
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DBG_VALUE renamable $w0, $noreg, !9, !DIExpression(), debug-location !12
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STRWui killed $w0, $sp, 3 :: (store 4 into %stack.0)
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DBG_VALUE $sp, 0, !9, !DIExpression(DW_OP_plus_uconst, 12), debug-location !12
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; CHECK: DBG_VALUE renamable $w0, $noreg, !9, !DIExpression(), debug-location !12
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; CHECK-NEXT: STRWui killed $w0, $sp, 3 :: (store 4 into %stack.0)
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; CHECK-NEXT: DBG_VALUE $sp, 0, !9, !DIExpression(DW_OP_plus_uconst, 12)
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; CHECK-NEXT: DBG_VALUE $sp, 0, !9, !DIExpression(DW_OP_plus_uconst, 12)
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bb.1.artificial-bb-1:
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; CHECK-LABEL: bb.1.artificial-bb-1:
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; CHECK: DBG_VALUE $sp, 0, !9, !DIExpression(DW_OP_plus_uconst, 12)
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bb.2.artificial-bb-2:
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; CHECK-LABEL: bb.2.artificial-bb-2:
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; CHECK: DBG_VALUE $sp, 0, !9, !DIExpression(DW_OP_plus_uconst, 12)
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bb.3.return:
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; CHECK-LABEL: bb.3.return:
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; CHECK: DBG_VALUE $sp, 0, !9, !DIExpression(DW_OP_plus_uconst, 12)
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$w0 = LDRWui $sp, 3 :: (load 4 from %stack.0)
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BL @use, csr_aarch64_aapcs, implicit-def $lr, implicit $sp, implicit killed $w0
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$fp, $lr = frame-destroy LDPXi $sp, 2, debug-location !15 :: (load 8 from %stack.2), (load 8 from %stack.1)
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$sp = frame-destroy ADDXri $sp, 32, 0, debug-location !15
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RET undef $lr, debug-location !15
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...
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