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224 lines
11 KiB
224 lines
11 KiB
4 months ago
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# 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 signext i16 @wrong_liveout_shift(i8* nocapture readonly %b, i8* nocapture readonly %c, i32 %N) {
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entry:
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%cmp11 = icmp eq i32 %N, 0
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%0 = add i32 %N, 7
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%1 = lshr i32 %0, 3
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%2 = shl nuw i32 %1, 3
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%3 = add i32 %2, -8
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%4 = lshr i32 %3, 2
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%5 = add nuw nsw i32 %4, 1
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br i1 %cmp11, label %for.cond.cleanup, label %vector.ph
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vector.ph: ; preds = %entry
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%start = call i32 @llvm.start.loop.iterations.i32(i32 %5)
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%6 = shl i32 %4, 3
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%7 = sub i32 %N, %6
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br label %vector.body
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vector.body: ; preds = %vector.body, %vector.ph
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%lsr.iv20 = phi i8* [ %scevgep21, %vector.body ], [ %c, %vector.ph ]
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%lsr.iv = phi i8* [ %scevgep, %vector.body ], [ %b, %vector.ph ]
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%vec.phi = phi <8 x i16> [ <i16 32767, i16 0, i16 0, i16 0, i16 0, i16 0, i16 0, i16 0>, %vector.ph ], [ %15, %vector.body ]
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%8 = phi i32 [ %start, %vector.ph ], [ %16, %vector.body ]
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%9 = phi i32 [ %N, %vector.ph ], [ %11, %vector.body ]
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%lsr.iv2022 = bitcast i8* %lsr.iv20 to <8 x i8>*
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%lsr.iv19 = bitcast i8* %lsr.iv to <8 x i8>*
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%10 = call <8 x i1> @llvm.arm.mve.vctp16(i32 %9)
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%11 = sub i32 %9, 8
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%wide.masked.load = call <8 x i8> @llvm.masked.load.v8i8.p0v8i8(<8 x i8>* %lsr.iv19, i32 1, <8 x i1> %10, <8 x i8> undef)
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%12 = zext <8 x i8> %wide.masked.load to <8 x i16>
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%wide.masked.load16 = call <8 x i8> @llvm.masked.load.v8i8.p0v8i8(<8 x i8>* %lsr.iv2022, i32 1, <8 x i1> %10, <8 x i8> undef)
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%13 = zext <8 x i8> %wide.masked.load16 to <8 x i16>
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%14 = mul nuw <8 x i16> %13, %12
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%15 = sub <8 x i16> %vec.phi, %14
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%scevgep = getelementptr i8, i8* %lsr.iv, i32 8
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%scevgep21 = getelementptr i8, i8* %lsr.iv20, i32 8
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%16 = call i32 @llvm.loop.decrement.reg.i32.i32.i32(i32 %8, i32 1)
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%17 = icmp ne i32 %16, 0
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br i1 %17, label %vector.body, label %middle.block
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middle.block: ; preds = %vector.body
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%vec.phi.lcssa = phi <8 x i16> [ %vec.phi, %vector.body ]
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%.lcssa = phi <8 x i16> [ %15, %vector.body ]
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%18 = call <8 x i1> @llvm.arm.mve.vctp16(i32 %7)
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%19 = select <8 x i1> %18, <8 x i16> %.lcssa, <8 x i16> %vec.phi.lcssa
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%20 = call i16 @llvm.vector.reduce.add.v8i16(<8 x i16> %19)
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br label %for.cond.cleanup
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for.cond.cleanup: ; preds = %middle.block, %entry
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%a.0.lcssa = phi i16 [ 32767, %entry ], [ %20, %middle.block ]
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ret i16 %a.0.lcssa
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}
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declare <8 x i8> @llvm.masked.load.v8i8.p0v8i8(<8 x i8>*, i32 immarg, <8 x i1>, <8 x i8>)
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declare i16 @llvm.vector.reduce.add.v8i16(<8 x i16>)
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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 <8 x i1> @llvm.arm.mve.vctp16(i32)
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...
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---
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name: wrong_liveout_shift
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alignment: 16
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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: '$r2', virtual-reg: '' }
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frameInfo:
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isFrameAddressTaken: false
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isReturnAddressTaken: false
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hasStackMap: false
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hasPatchPoint: false
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stackSize: 8
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offsetAdjustment: 0
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maxAlignment: 4
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adjustsStack: false
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hasCalls: false
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stackProtector: ''
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maxCallFrameSize: 0
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cvBytesOfCalleeSavedRegisters: 0
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hasOpaqueSPAdjustment: false
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hasVAStart: false
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hasMustTailInVarArgFunc: false
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localFrameSize: 0
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savePoint: ''
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restorePoint: ''
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fixedStack: []
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stack:
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- { id: 0, name: '', type: spill-slot, offset: -4, size: 4, alignment: 4,
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stack-id: default, callee-saved-register: '$lr', callee-saved-restored: true,
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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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callSites: []
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constants:
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- id: 0
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value: '<8 x i16> <i16 32767, i16 0, i16 0, i16 0, i16 0, i16 0, i16 0, i16 0>'
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alignment: 16
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isTargetSpecific: false
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machineFunctionInfo: {}
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body: |
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; CHECK-LABEL: name: wrong_liveout_shift
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; CHECK: bb.0.entry:
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; CHECK: successors: %bb.1(0x80000000)
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; CHECK: liveins: $lr, $r0, $r1, $r2, $r7
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; CHECK: tCMPi8 renamable $r2, 0, 14 /* CC::al */, $noreg, implicit-def $cpsr
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; CHECK: t2IT 0, 2, implicit-def $itstate
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; CHECK: renamable $r0 = t2MOVi16 32767, 0 /* CC::eq */, $cpsr, implicit killed $r0, implicit $itstate
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; CHECK: renamable $r0 = tSXTH killed renamable $r0, 0 /* CC::eq */, $cpsr, implicit killed $r0, implicit $itstate
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; CHECK: tBX_RET 0 /* CC::eq */, killed $cpsr, implicit $r0, implicit killed $itstate
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; CHECK: bb.1.vector.ph:
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; CHECK: successors: %bb.2(0x80000000)
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; CHECK: liveins: $lr, $r0, $r1, $r2
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; CHECK: frame-setup tPUSH 14 /* CC::al */, $noreg, killed $lr, implicit-def $sp, implicit $sp
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; CHECK: frame-setup CFI_INSTRUCTION def_cfa_offset 8
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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: dead $r7 = frame-setup tMOVr $sp, 14 /* CC::al */, $noreg
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; CHECK: frame-setup CFI_INSTRUCTION def_cfa_register $r7
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; CHECK: renamable $r3, dead $cpsr = tADDi3 renamable $r2, 7, 14 /* CC::al */, $noreg
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; CHECK: renamable $r3 = t2BICri killed renamable $r3, 7, 14 /* CC::al */, $noreg, $noreg
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; CHECK: renamable $r12 = t2SUBri killed renamable $r3, 8, 14 /* CC::al */, $noreg, $noreg
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; CHECK: renamable $r3, dead $cpsr = tMOVi8 1, 14 /* CC::al */, $noreg
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; CHECK: renamable $lr = nuw nsw t2ADDrs killed renamable $r3, renamable $r12, 27, 14 /* CC::al */, $noreg, $noreg
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; CHECK: renamable $r3 = tLEApcrel %const.0, 14 /* CC::al */, $noreg
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; CHECK: renamable $r12 = t2LSRri killed renamable $r12, 2, 14 /* CC::al */, $noreg, $noreg
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; CHECK: renamable $q0 = MVE_VLDRWU32 killed renamable $r3, 0, 0, $noreg :: (load 16 from constant-pool)
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; CHECK: renamable $r3 = t2SUBrs renamable $r2, killed renamable $r12, 26, 14 /* CC::al */, $noreg, $noreg
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; CHECK: $lr = t2DLS killed renamable $lr
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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_VCTP16 renamable $r2, 0, $noreg
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; CHECK: $q1 = MVE_VORR killed $q0, killed $q0, 0, $noreg, undef $q1
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; CHECK: MVE_VPST 4, implicit $vpr
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; CHECK: renamable $r0, renamable $q0 = MVE_VLDRBU16_post killed renamable $r0, 8, 1, renamable $vpr :: (load 8 from %ir.lsr.iv19, align 1)
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; CHECK: renamable $r1, renamable $q2 = MVE_VLDRBU16_post killed renamable $r1, 8, 1, killed renamable $vpr :: (load 8 from %ir.lsr.iv2022, align 1)
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; CHECK: renamable $r2, dead $cpsr = tSUBi8 killed renamable $r2, 8, 14 /* CC::al */, $noreg
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; CHECK: renamable $q0 = nuw MVE_VMULi16 killed renamable $q2, killed renamable $q0, 0, $noreg, undef renamable $q0
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; CHECK: renamable $q0 = MVE_VSUBi16 renamable $q1, killed renamable $q0, 0, $noreg, undef renamable $q0
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; CHECK: $lr = t2LEUpdate killed renamable $lr, %bb.2
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; CHECK: bb.3.middle.block:
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; CHECK: liveins: $q0, $q1, $r3
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; CHECK: renamable $vpr = MVE_VCTP16 killed renamable $r3, 0, $noreg
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; CHECK: renamable $q0 = MVE_VPSEL killed renamable $q0, killed renamable $q1, 0, killed renamable $vpr
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; CHECK: renamable $r0 = MVE_VADDVu16no_acc killed renamable $q0, 0, $noreg
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; CHECK: $sp = t2LDMIA_UPD $sp, 14 /* CC::al */, $noreg, def $r7, def $lr
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; CHECK: renamable $r0 = tSXTH killed renamable $r0, 14 /* CC::al */, $noreg
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; CHECK: tBX_RET 14 /* CC::al */, $noreg, implicit killed $r0
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; CHECK: bb.4 (align 16):
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; CHECK: CONSTPOOL_ENTRY 0, %const.0, 16
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bb.0.entry:
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successors: %bb.1(0x80000000)
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liveins: $r0, $r1, $r2, $lr
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tCMPi8 renamable $r2, 0, 14, $noreg, implicit-def $cpsr
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t2IT 0, 2, implicit-def $itstate
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renamable $r0 = t2MOVi16 32767, 0, $cpsr, implicit killed $r0, implicit $itstate
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renamable $r0 = tSXTH killed renamable $r0, 0, $cpsr, implicit killed $r0, implicit $itstate
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tBX_RET 0, killed $cpsr, implicit $r0, implicit killed $itstate
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bb.1.vector.ph:
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successors: %bb.2(0x80000000)
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liveins: $r0, $r1, $r2, $lr
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frame-setup tPUSH 14, $noreg, killed $lr, implicit-def $sp, implicit $sp
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frame-setup CFI_INSTRUCTION def_cfa_offset 8
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frame-setup CFI_INSTRUCTION offset $lr, -4
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frame-setup CFI_INSTRUCTION offset $r7, -8
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$r7 = frame-setup tMOVr $sp, 14, $noreg
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frame-setup CFI_INSTRUCTION def_cfa_register $r7
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renamable $r3, dead $cpsr = tADDi3 renamable $r2, 7, 14, $noreg
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renamable $r3 = t2BICri killed renamable $r3, 7, 14, $noreg, $noreg
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renamable $r12 = t2SUBri killed renamable $r3, 8, 14, $noreg, $noreg
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renamable $r3, dead $cpsr = tMOVi8 1, 14, $noreg
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renamable $lr = nuw nsw t2ADDrs killed renamable $r3, renamable $r12, 27, 14, $noreg, $noreg
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renamable $r3 = tLEApcrel %const.0, 14, $noreg
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renamable $r12 = t2LSRri killed renamable $r12, 2, 14, $noreg, $noreg
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renamable $q0 = MVE_VLDRWU32 killed renamable $r3, 0, 0, $noreg :: (load 16 from constant-pool)
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renamable $r3 = t2SUBrs renamable $r2, killed renamable $r12, 26, 14, $noreg, $noreg
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$lr = t2DoLoopStart renamable $lr
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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_VCTP16 renamable $r2, 0, $noreg
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$q1 = MVE_VORR killed $q0, $q0, 0, $noreg, undef $q1
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MVE_VPST 4, implicit $vpr
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renamable $r0, renamable $q0 = MVE_VLDRBU16_post killed renamable $r0, 8, 1, renamable $vpr :: (load 8 from %ir.lsr.iv19, align 1)
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renamable $r1, renamable $q2 = MVE_VLDRBU16_post killed renamable $r1, 8, 1, killed renamable $vpr :: (load 8 from %ir.lsr.iv2022, align 1)
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renamable $r2, dead $cpsr = tSUBi8 killed renamable $r2, 8, 14, $noreg
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renamable $q0 = nuw MVE_VMULi16 killed renamable $q2, killed renamable $q0, 0, $noreg, undef renamable $q0
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renamable $lr = t2LoopDec killed renamable $lr, 1
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renamable $q0 = MVE_VSUBi16 renamable $q1, killed renamable $q0, 0, $noreg, undef renamable $q0
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t2LoopEnd renamable $lr, %bb.2, implicit-def dead $cpsr
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tB %bb.3, 14, $noreg
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bb.3.middle.block:
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liveins: $q0, $q1, $r3
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renamable $vpr = MVE_VCTP16 killed renamable $r3, 0, $noreg
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renamable $q0 = MVE_VPSEL killed renamable $q0, killed renamable $q1, 0, killed renamable $vpr
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renamable $r0 = MVE_VADDVu16no_acc killed renamable $q0, 0, $noreg
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$sp = t2LDMIA_UPD $sp, 14, $noreg, def $r7, def $lr
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renamable $r0 = tSXTH killed renamable $r0, 14, $noreg
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tBX_RET 14, $noreg, implicit killed $r0
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bb.4 (align 16):
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CONSTPOOL_ENTRY 0, %const.0, 16
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...
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