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298 lines
17 KiB
298 lines
17 KiB
# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
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# RUN: llc -mtriple=thumbv8.1m.main -mattr=+mve -run-pass=arm-low-overhead-loops %s -o - --verify-machineinstrs | FileCheck %s
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--- |
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define dso_local arm_aapcs_vfpcc void @skip_debug(i32* nocapture %a, i16* nocapture readonly %b, i32 %N) !dbg !8 {
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entry:
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call void @llvm.dbg.value(metadata i32* %a, metadata !17, metadata !DIExpression()), !dbg !23
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call void @llvm.dbg.value(metadata i16* %b, metadata !18, metadata !DIExpression()), !dbg !23
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call void @llvm.dbg.value(metadata i32 %N, metadata !19, metadata !DIExpression()), !dbg !23
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%0 = load i32, i32* %a, align 4, !dbg !24
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call void @llvm.dbg.value(metadata i32 %0, metadata !20, metadata !DIExpression()), !dbg !23
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call void @llvm.dbg.value(metadata i32 0, metadata !21, metadata !DIExpression()), !dbg !29
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%cmp7 = icmp eq i32 %N, 0, !dbg !30
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%1 = add i32 %N, 3, !dbg !32
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%2 = lshr i32 %1, 2, !dbg !32
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%3 = shl nuw i32 %2, 2, !dbg !32
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%4 = add i32 %3, -4, !dbg !32
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%5 = lshr i32 %4, 2, !dbg !32
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%6 = add nuw nsw i32 %5, 1, !dbg !32
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br i1 %cmp7, label %for.cond.cleanup, label %vector.ph, !dbg !32
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vector.ph: ; preds = %entry
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%7 = insertelement <4 x i32> <i32 undef, i32 0, i32 0, i32 0>, i32 %0, i32 0, !dbg !32
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%start = call i32 @llvm.start.loop.iterations.i32(i32 %6), !dbg !32
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%8 = shl i32 %5, 2, !dbg !32
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%9 = sub i32 %N, %8, !dbg !32
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br label %vector.body, !dbg !32
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vector.body: ; preds = %vector.body, %vector.ph
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%lsr.iv = phi i16* [ %scevgep, %vector.body ], [ %b, %vector.ph ], !dbg !33
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%vec.phi = phi <4 x i32> [ %7, %vector.ph ], [ %15, %vector.body ]
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%10 = phi i32 [ %start, %vector.ph ], [ %16, %vector.body ]
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%11 = phi i32 [ %N, %vector.ph ], [ %13, %vector.body ]
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%lsr.iv14 = bitcast i16* %lsr.iv to <4 x i16>*
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%12 = call <4 x i1> @llvm.arm.mve.vctp32(i32 %11), !dbg !34
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%13 = sub i32 %11, 4, !dbg !34
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%wide.masked.load = call <4 x i16> @llvm.masked.load.v4i16.p0v4i16(<4 x i16>* %lsr.iv14, i32 2, <4 x i1> %12, <4 x i16> undef), !dbg !34
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%14 = sext <4 x i16> %wide.masked.load to <4 x i32>, !dbg !34
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%15 = sub <4 x i32> %vec.phi, %14, !dbg !38
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%scevgep = getelementptr i16, i16* %lsr.iv, i32 4, !dbg !33
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%16 = call i32 @llvm.loop.decrement.reg.i32.i32.i32(i32 %10, i32 1), !dbg !33
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%17 = icmp ne i32 %16, 0, !dbg !33
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br i1 %17, label %vector.body, label %middle.block, !dbg !33
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middle.block: ; preds = %vector.body
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%vec.phi.lcssa = phi <4 x i32> [ %vec.phi, %vector.body ]
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%.lcssa = phi <4 x i32> [ %15, %vector.body ], !dbg !38
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%18 = call <4 x i1> @llvm.arm.mve.vctp32(i32 %9), !dbg !34
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%19 = select <4 x i1> %18, <4 x i32> %.lcssa, <4 x i32> %vec.phi.lcssa, !dbg !38
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%20 = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> %19), !dbg !32
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br label %for.cond.cleanup, !dbg !42
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for.cond.cleanup: ; preds = %middle.block, %entry
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%temp.0.lcssa = phi i32 [ %0, %entry ], [ %20, %middle.block ], !dbg !23
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call void @llvm.dbg.value(metadata i32 %temp.0.lcssa, metadata !20, metadata !DIExpression()), !dbg !23
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store i32 %temp.0.lcssa, i32* %a, align 4, !dbg !42
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ret void, !dbg !43
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}
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declare void @llvm.dbg.value(metadata, metadata, metadata)
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declare <4 x i16> @llvm.masked.load.v4i16.p0v4i16(<4 x i16>*, i32 immarg, <4 x i1>, <4 x i16>)
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declare i32 @llvm.vector.reduce.add.v4i32(<4 x i32>)
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declare i32 @llvm.start.loop.iterations.i32(i32)
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declare i32 @llvm.loop.decrement.reg.i32.i32.i32(i32, i32)
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declare <4 x i1> @llvm.arm.mve.vctp32(i32)
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4, !5, !6}
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!llvm.ident = !{!7}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, splitDebugInlining: false, nameTableKind: None)
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!1 = !DIFile(filename: "skip-debug", directory: "")
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!2 = !{}
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!3 = !{i32 7, !"Dwarf Version", i32 4}
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!4 = !{i32 2, !"Debug Info Version", i32 3}
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!5 = !{i32 1, !"wchar_size", i32 4}
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!6 = !{i32 1, !"min_enum_size", i32 4}
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!7 = !{!""}
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!8 = distinct !DISubprogram(name: "skip_debug", scope: !1, file: !1, line: 2, type: !9, scopeLine: 2, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !16)
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!9 = !DISubroutineType(types: !10)
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!10 = !{null, !11, !13, !15}
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!11 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !12, size: 32)
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!12 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!13 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !14, size: 32)
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!14 = !DIBasicType(name: "short", size: 16, encoding: DW_ATE_signed)
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!15 = !DIBasicType(name: "unsigned int", size: 32, encoding: DW_ATE_unsigned)
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!16 = !{!17, !18, !19, !20, !21}
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!17 = !DILocalVariable(name: "a", arg: 1, scope: !8, file: !1, line: 2, type: !11)
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!18 = !DILocalVariable(name: "b", arg: 2, scope: !8, file: !1, line: 2, type: !13)
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!19 = !DILocalVariable(name: "N", arg: 3, scope: !8, file: !1, line: 2, type: !15)
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!20 = !DILocalVariable(name: "temp", scope: !8, file: !1, line: 3, type: !12)
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!21 = !DILocalVariable(name: "i", scope: !22, file: !1, line: 4, type: !15)
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!22 = distinct !DILexicalBlock(scope: !8, file: !1, line: 4, column: 3)
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!23 = !DILocation(line: 0, scope: !8)
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!24 = !DILocation(line: 3, column: 14, scope: !8)
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!25 = !{!26, !26, i64 0}
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!26 = !{!"int", !27, i64 0}
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!27 = !{!"omnipotent char", !28, i64 0}
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!28 = !{!"Simple C/C++ TBAA"}
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!29 = !DILocation(line: 0, scope: !22)
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!30 = !DILocation(line: 4, column: 26, scope: !31)
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!31 = distinct !DILexicalBlock(scope: !22, file: !1, line: 4, column: 3)
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!32 = !DILocation(line: 4, column: 3, scope: !22)
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!33 = !DILocation(line: 4, column: 31, scope: !31)
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!34 = !DILocation(line: 5, column: 13, scope: !35)
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!35 = distinct !DILexicalBlock(scope: !31, file: !1, line: 4, column: 36)
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!36 = !{!37, !37, i64 0}
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!37 = !{!"short", !27, i64 0}
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!38 = !DILocation(line: 5, column: 10, scope: !35)
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!39 = distinct !{!39, !32, !40, !41}
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!40 = !DILocation(line: 6, column: 3, scope: !22)
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!41 = !{!"llvm.loop.isvectorized", i32 1}
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!42 = !DILocation(line: 7, column: 6, scope: !8)
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!43 = !DILocation(line: 8, column: 1, scope: !8)
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...
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---
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name: skip_debug
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alignment: 2
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exposesReturnsTwice: false
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legalized: false
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regBankSelected: false
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selected: false
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failedISel: false
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tracksRegLiveness: true
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hasWinCFI: false
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registers: []
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liveins:
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- { reg: '$r0', virtual-reg: '' }
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- { reg: '$r1', virtual-reg: '' }
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- { reg: '$r2', virtual-reg: '' }
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frameInfo:
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isFrameAddressTaken: false
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isReturnAddressTaken: false
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hasStackMap: false
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hasPatchPoint: false
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stackSize: 16
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offsetAdjustment: -8
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maxAlignment: 4
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adjustsStack: false
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hasCalls: false
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stackProtector: ''
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maxCallFrameSize: 0
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cvBytesOfCalleeSavedRegisters: 0
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hasOpaqueSPAdjustment: false
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hasVAStart: false
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hasMustTailInVarArgFunc: false
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localFrameSize: 0
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savePoint: ''
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restorePoint: ''
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fixedStack: []
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stack:
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- { id: 0, name: '', type: spill-slot, offset: -4, size: 4, alignment: 4,
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stack-id: default, callee-saved-register: '$lr', callee-saved-restored: false,
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debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
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- { id: 1, name: '', type: spill-slot, offset: -8, size: 4, alignment: 4,
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stack-id: default, callee-saved-register: '$r7', callee-saved-restored: true,
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debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
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- { id: 2, name: '', type: spill-slot, offset: -12, size: 4, alignment: 4,
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stack-id: default, callee-saved-register: '$r6', callee-saved-restored: true,
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debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
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- { id: 3, name: '', type: spill-slot, offset: -16, size: 4, alignment: 4,
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stack-id: default, callee-saved-register: '$r4', callee-saved-restored: true,
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debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
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callSites: []
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constants: []
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machineFunctionInfo: {}
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body: |
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; CHECK-LABEL: name: skip_debug
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; CHECK: bb.0.entry:
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; CHECK: successors: %bb.4(0x30000000), %bb.1(0x50000000)
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; CHECK: liveins: $lr, $r0, $r1, $r2, $r4, $r6
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; CHECK: DBG_VALUE $r0, $noreg, !17, !DIExpression(), debug-location !23
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; CHECK: DBG_VALUE $r0, $noreg, !17, !DIExpression(), debug-location !23
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; CHECK: DBG_VALUE $r1, $noreg, !18, !DIExpression(), debug-location !23
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; CHECK: DBG_VALUE $r1, $noreg, !18, !DIExpression(), debug-location !23
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; CHECK: DBG_VALUE $r2, $noreg, !19, !DIExpression(), debug-location !23
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; CHECK: DBG_VALUE $r2, $noreg, !19, !DIExpression(), debug-location !23
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; CHECK: frame-setup tPUSH 14 /* CC::al */, $noreg, killed $r4, killed $r6, killed $lr, implicit-def $sp, implicit $sp
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; CHECK: frame-setup CFI_INSTRUCTION def_cfa_offset 16
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; CHECK: frame-setup CFI_INSTRUCTION offset $lr, -4
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; CHECK: frame-setup CFI_INSTRUCTION offset $r7, -8
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; CHECK: frame-setup CFI_INSTRUCTION offset $r6, -12
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; CHECK: frame-setup CFI_INSTRUCTION offset $r4, -16
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; CHECK: dead $r7 = frame-setup tADDrSPi $sp, 2, 14 /* CC::al */, $noreg
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; CHECK: frame-setup CFI_INSTRUCTION def_cfa $r7, 8
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; CHECK: renamable $r12 = t2LDRi12 renamable $r0, 0, 14 /* CC::al */, $noreg, debug-location !24 :: (load 4 from %ir.a)
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; CHECK: DBG_VALUE 0, $noreg, !21, !DIExpression(), debug-location !25
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; CHECK: DBG_VALUE $r12, $noreg, !20, !DIExpression(), debug-location !23
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; CHECK: tCBZ $r2, %bb.4, debug-location !28
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; CHECK: bb.1.vector.ph:
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; CHECK: successors: %bb.2(0x80000000)
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; CHECK: liveins: $r0, $r1, $r2, $r12
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; CHECK: renamable $r3, dead $cpsr = tADDi3 renamable $r2, 3, 14 /* CC::al */, $noreg, debug-location !28
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; CHECK: renamable $lr = t2MOVi 1, 14 /* CC::al */, $noreg, $noreg
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; CHECK: renamable $r3 = t2BICri killed renamable $r3, 3, 14 /* CC::al */, $noreg, $noreg, debug-location !28
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; CHECK: renamable $r4, dead $cpsr = tMOVi8 0, 14 /* CC::al */, $noreg
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; CHECK: renamable $r3, dead $cpsr = tSUBi8 killed renamable $r3, 4, 14 /* CC::al */, $noreg, debug-location !28
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; CHECK: renamable $q0 = MVE_VDUP32 killed renamable $r4, 0, $noreg, undef renamable $q0, debug-location !28
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; CHECK: renamable $q0 = MVE_VMOV_to_lane_32 killed renamable $q0, killed renamable $r12, 0, 14 /* CC::al */, $noreg, debug-location !28
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; CHECK: renamable $lr = nuw nsw t2ADDrs killed renamable $lr, renamable $r3, 19, 14 /* CC::al */, $noreg, $noreg, debug-location !28
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; CHECK: renamable $r3, dead $cpsr = tLSRri killed renamable $r3, 2, 14 /* CC::al */, $noreg, debug-location !28
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; CHECK: renamable $r3 = t2SUBrs renamable $r2, killed renamable $r3, 18, 14 /* CC::al */, $noreg, $noreg, debug-location !28
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; CHECK: $lr = t2DLS killed renamable $lr, debug-location !28
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; CHECK: bb.2.vector.body:
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; CHECK: successors: %bb.2(0x7c000000), %bb.3(0x04000000)
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; CHECK: liveins: $lr, $q0, $r0, $r1, $r2, $r3
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; CHECK: renamable $vpr = MVE_VCTP32 renamable $r2, 0, $noreg, debug-location !30
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; CHECK: DBG_VALUE $vpr, $noreg, !17, !DIExpression(), debug-location !30
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; CHECK: $q1 = MVE_VORR killed $q0, killed $q0, 0, $noreg, undef $q1
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; CHECK: MVE_VPST 8, implicit $vpr, debug-location !30
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; CHECK: renamable $r1, renamable $q0 = MVE_VLDRHU32_post killed renamable $r1, 8, 1, killed renamable $vpr, debug-location !30 :: (load 8 from %ir.lsr.iv14, align 2)
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; CHECK: renamable $r2, dead $cpsr = tSUBi8 killed renamable $r2, 4, 14 /* CC::al */, $noreg, debug-location !30
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; CHECK: renamable $q0 = MVE_VMOVLs16bh killed renamable $q0, 0, $noreg, undef renamable $q0, debug-location !30
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; CHECK: renamable $q0 = MVE_VSUBi32 renamable $q1, killed renamable $q0, 0, $noreg, undef renamable $q0, debug-location !32
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; CHECK: $lr = t2LEUpdate killed renamable $lr, %bb.2, debug-location !29
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; CHECK: bb.3.middle.block:
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; CHECK: successors: %bb.4(0x80000000)
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; CHECK: liveins: $q0, $q1, $r0, $r3
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; CHECK: renamable $vpr = MVE_VCTP32 killed renamable $r3, 0, $noreg, debug-location !30
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; CHECK: renamable $q0 = MVE_VPSEL killed renamable $q0, killed renamable $q1, 0, killed renamable $vpr, debug-location !32
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; CHECK: renamable $r12 = MVE_VADDVu32no_acc killed renamable $q0, 0, $noreg, debug-location !28
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; CHECK: bb.4.for.cond.cleanup:
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; CHECK: liveins: $r0, $r12
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; CHECK: DBG_VALUE $r12, $noreg, !20, !DIExpression(), debug-location !23
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; CHECK: t2STRi12 killed renamable $r12, killed renamable $r0, 0, 14 /* CC::al */, $noreg, debug-location !33 :: (store 4 into %ir.a)
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; CHECK: tPOP_RET 14 /* CC::al */, $noreg, def $r4, def $r6, def $r7, def $pc, debug-location !34
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bb.0.entry:
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successors: %bb.4(0x30000000), %bb.1(0x50000000)
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liveins: $r0, $r1, $r2, $r4, $r6, $lr
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DBG_VALUE $r0, $noreg, !17, !DIExpression(), debug-location !23
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DBG_VALUE $r0, $noreg, !17, !DIExpression(), debug-location !23
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DBG_VALUE $r1, $noreg, !18, !DIExpression(), debug-location !23
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DBG_VALUE $r1, $noreg, !18, !DIExpression(), debug-location !23
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DBG_VALUE $r2, $noreg, !19, !DIExpression(), debug-location !23
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DBG_VALUE $r2, $noreg, !19, !DIExpression(), debug-location !23
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frame-setup tPUSH 14, $noreg, killed $r4, killed $r6, killed $lr, implicit-def $sp, implicit $sp
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frame-setup CFI_INSTRUCTION def_cfa_offset 16
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frame-setup CFI_INSTRUCTION offset $lr, -4
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frame-setup CFI_INSTRUCTION offset $r7, -8
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frame-setup CFI_INSTRUCTION offset $r6, -12
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frame-setup CFI_INSTRUCTION offset $r4, -16
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$r7 = frame-setup tADDrSPi $sp, 2, 14, $noreg
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frame-setup CFI_INSTRUCTION def_cfa $r7, 8
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renamable $r12 = t2LDRi12 renamable $r0, 0, 14, $noreg, debug-location !24 :: (load 4 from %ir.a)
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DBG_VALUE 0, $noreg, !21, !DIExpression(), debug-location !29
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DBG_VALUE $r12, $noreg, !20, !DIExpression(), debug-location !23
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tCBZ $r2, %bb.4, debug-location !32
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bb.1.vector.ph:
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successors: %bb.2(0x80000000)
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liveins: $r0, $r1, $r2, $r12
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renamable $r3, dead $cpsr = tADDi3 renamable $r2, 3, 14, $noreg, debug-location !32
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renamable $lr = t2MOVi 1, 14, $noreg, $noreg
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renamable $r3 = t2BICri killed renamable $r3, 3, 14, $noreg, $noreg, debug-location !32
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renamable $r4, dead $cpsr = tMOVi8 0, 14, $noreg
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renamable $r3, dead $cpsr = tSUBi8 killed renamable $r3, 4, 14, $noreg, debug-location !32
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renamable $q0 = MVE_VDUP32 killed renamable $r4, 0, $noreg, undef renamable $q0, debug-location !32
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renamable $q0 = MVE_VMOV_to_lane_32 killed renamable $q0, killed renamable $r12, 0, 14, $noreg, debug-location !32
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renamable $lr = nuw nsw t2ADDrs killed renamable $lr, renamable $r3, 19, 14, $noreg, $noreg, debug-location !32
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renamable $r3, dead $cpsr = tLSRri killed renamable $r3, 2, 14, $noreg, debug-location !32
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renamable $r3 = t2SUBrs renamable $r2, killed renamable $r3, 18, 14, $noreg, $noreg, debug-location !32
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$lr = t2DoLoopStart renamable $lr, debug-location !32
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bb.2.vector.body:
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successors: %bb.2(0x7c000000), %bb.3(0x04000000)
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liveins: $lr, $q0, $r0, $r1, $r2, $r3
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renamable $vpr = MVE_VCTP32 renamable $r2, 0, $noreg, debug-location !34
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DBG_VALUE $vpr, $noreg, !17, !DIExpression(), debug-location !34
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$q1 = MVE_VORR killed $q0, $q0, 0, $noreg, undef $q1
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MVE_VPST 8, implicit $vpr, debug-location !34
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renamable $r1, renamable $q0 = MVE_VLDRHU32_post killed renamable $r1, 8, 1, killed renamable $vpr, debug-location !34 :: (load 8 from %ir.lsr.iv14, align 2)
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renamable $r2, dead $cpsr = tSUBi8 killed renamable $r2, 4, 14, $noreg, debug-location !34
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renamable $q0 = MVE_VMOVLs16bh killed renamable $q0, 0, $noreg, undef renamable $q0, debug-location !34
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renamable $lr = t2LoopDec killed renamable $lr, 1, debug-location !33
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renamable $q0 = MVE_VSUBi32 renamable $q1, killed renamable $q0, 0, $noreg, undef renamable $q0, debug-location !38
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t2LoopEnd renamable $lr, %bb.2, implicit-def dead $cpsr, debug-location !33
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tB %bb.3, 14, $noreg, debug-location !33
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bb.3.middle.block:
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successors: %bb.4(0x80000000)
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liveins: $q0, $q1, $r0, $r3
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renamable $vpr = MVE_VCTP32 killed renamable $r3, 0, $noreg, debug-location !34
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renamable $q0 = MVE_VPSEL killed renamable $q0, killed renamable $q1, 0, killed renamable $vpr, debug-location !38
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|
renamable $r12 = MVE_VADDVu32no_acc killed renamable $q0, 0, $noreg, debug-location !32
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|
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|
bb.4.for.cond.cleanup:
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|
liveins: $r0, $r12
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|
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DBG_VALUE $r12, $noreg, !20, !DIExpression(), debug-location !23
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|
t2STRi12 killed renamable $r12, killed renamable $r0, 0, 14, $noreg, debug-location !42 :: (store 4 into %ir.a)
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tPOP_RET 14, $noreg, def $r4, def $r6, def $r7, def $pc, debug-location !43
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|
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|
...
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