95 lines
3.1 KiB
YAML
95 lines
3.1 KiB
YAML
# RUN: llc %s -o - -run-pass=early-tailduplication | FileCheck %s --check-prefixes=CHECK,DEBUG
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# RUN: llc %s -o - -run-pass=mir-strip-debug,early-tailduplication -mir-strip-debugify-only=0 | FileCheck %s --check-prefix=CHECK
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# We should get the same result with and without debug information.
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# Specifically, the register class of [[COPY]] should not be changed to
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# gpr32common with debug info while staying as gpr32sp without.
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--- |
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target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
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target triple = "aarch64-none-linux-gnu"
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define void @test() !dbg !8 {
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entry:
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ret void
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}
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!2, !3, !4, !5}
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!llvm.ident = !{!6}
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!0 = distinct !DICompileUnit(language: DW_LANG_C11, file: !1, producer: "My compiler", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, splitDebugInlining: false, nameTableKind: None)
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!1 = !DIFile(filename: "foo.c", directory: "/bar")
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!2 = !{i32 7, !"Dwarf Version", i32 4}
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!3 = !{i32 2, !"Debug Info Version", i32 3}
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!4 = !{i32 1, !"wchar_size", i32 1}
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!5 = !{i32 7, !"frame-pointer", i32 2}
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!6 = !{!"My compiler"}
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!7 = !DILocalVariable(name: "i", scope: !8, file: !1, line: 6, type: !12)
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!8 = distinct !DISubprogram(name: "test", scope: !1, file: !1, line: 5, type: !9, scopeLine: 5, flags: DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !11)
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!9 = !DISubroutineType(types: !10)
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!10 = !{null}
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!11 = !{!7}
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!12 = !DIBasicType(name: "int", size: 16, encoding: DW_ATE_signed)
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!13 = !DILocation(line: 0, scope: !8)
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...
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---
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name: test
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tracksRegLiveness: true
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liveins: []
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body: |
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; CHECK-LABEL: name: test
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; CHECK: bb.0:
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; CHECK-NEXT: successors: %bb.2(0x40000000), %bb.1(0x40000000)
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; CHECK-NEXT: liveins: $w0, $wzr
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: [[COPY:%[0-9]+]]:gpr32sp = COPY $w0
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; CHECK-NEXT: CBNZW $wzr, %bb.2
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: bb.1:
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; CHECK-NEXT: successors: %bb.4(0x80000000)
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: $x0 = COPY undef $x0
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; DEBUG-NEXT: DBG_VALUE [[COPY]], $noreg, !11, !DIExpression(), debug-location !DILocation(line: 0, scope: !7)
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; CHECK-NEXT: [[COPY1:%[0-9]+]]:gpr32 = COPY [[COPY]]
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; CHECK-NEXT: B %bb.4
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: bb.2:
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; CHECK-NEXT: successors: %bb.4(0x80000000)
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; CHECK-NEXT: {{ $}}
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; DEBUG-NEXT: DBG_VALUE [[COPY]], $noreg, !11, !DIExpression(), debug-location !DILocation(line: 0, scope: !7)
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; CHECK-NEXT: [[COPY2:%[0-9]+]]:gpr32 = COPY [[COPY]]
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: bb.4:
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; CHECK-NEXT: RET undef $lr, implicit undef $w0
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bb.0:
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successors: %bb.2, %bb.1
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liveins: $w0, $wzr
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%1:gpr32sp = COPY $w0
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CBNZW $wzr, %bb.2
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bb.1:
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successors: %bb.3
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$x0 = COPY undef $x0
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B %bb.3
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bb.2:
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successors: %bb.3
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bb.3:
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successors: %bb.5
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%2:gpr32 = PHI %1, %bb.1, %1, %bb.2
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DBG_VALUE %2, $noreg, !7, !DIExpression(), debug-location !13
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B %bb.5
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bb.4:
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RET undef $lr, implicit undef $w0
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bb.5:
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successors: %bb.4
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B %bb.4
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...
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