174 lines
8.7 KiB
Plaintext
174 lines
8.7 KiB
Plaintext
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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 -verify-machineinstrs -o - | FileCheck %s
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--- |
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; Function Attrs: nofree norecurse nounwind
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define dso_local arm_aapcs_vfpcc void @test(i32* noalias nocapture %a, i32* nocapture readonly %b, i32 %N) local_unnamed_addr #0 {
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entry:
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%cmp9 = icmp eq i32 %N, 0
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%0 = add i32 %N, 3
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%1 = lshr i32 %0, 2
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%2 = shl nuw i32 %1, 2
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%3 = add i32 %2, -4
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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 %cmp9, label %for.cond.cleanup, label %vector.ph
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vector.ph: ; preds = %entry
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%div = lshr i32 %N, 1
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%trip.count.minus.1 = add i32 %N, -1
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%broadcast.splatinsert = insertelement <4 x i32> undef, i32 %trip.count.minus.1, i32 0
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%broadcast.splat = shufflevector <4 x i32> %broadcast.splatinsert, <4 x i32> undef, <4 x i32> zeroinitializer
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%start = call i32 @llvm.start.loop.iterations.i32(i32 %5)
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br label %vector.body
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vector.body: ; preds = %vector.body, %vector.ph
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%lsr.iv3 = phi i32* [ %scevgep4, %vector.body ], [ %b, %vector.ph ]
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%lsr.iv1 = phi i32* [ %scevgep, %vector.body ], [ %a, %vector.ph ]
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%vec.ind = phi <4 x i32> [ <i32 0, i32 1, i32 2, i32 3>, %vector.ph ], [ %vec.ind.next, %vector.body ]
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%elts.rem = phi i32 [ %N, %vector.ph ], [ %elts.rem.next, %vector.body ]
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%6 = phi i32 [ %start, %vector.ph ], [ %12, %vector.body ]
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%lsr.iv35 = bitcast i32* %lsr.iv3 to <4 x i32>*
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%lsr.iv12 = bitcast i32* %lsr.iv1 to <4 x i32>*
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%7 = insertelement <4 x i32> undef, i32 %div, i32 0
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%8 = shufflevector <4 x i32> %7, <4 x i32> undef, <4 x i32> zeroinitializer
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%9 = icmp ult <4 x i32> %vec.ind, %8
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%10 = call <4 x i1> @llvm.arm.mve.vctp32(i32 %elts.rem)
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%11 = and <4 x i1> %9, %10
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%wide.masked.load = call <4 x i32> @llvm.masked.load.v4i32.p0v4i32(<4 x i32>* %lsr.iv35, i32 4, <4 x i1> %11, <4 x i32> undef)
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call void @llvm.masked.store.v4i32.p0v4i32(<4 x i32> %wide.masked.load, <4 x i32>* %lsr.iv12, i32 4, <4 x i1> %11)
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%vec.ind.next = add <4 x i32> %vec.ind, <i32 4, i32 4, i32 4, i32 4>
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%elts.rem.next = sub i32 %elts.rem, 4
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%scevgep = getelementptr i32, i32* %lsr.iv1, i32 4
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%scevgep4 = getelementptr i32, i32* %lsr.iv3, i32 4
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%12 = call i32 @llvm.loop.decrement.reg.i32.i32.i32(i32 %6, i32 1)
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%13 = icmp ne i32 %12, 0
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br i1 %13, label %vector.body, label %for.cond.cleanup
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for.cond.cleanup: ; preds = %vector.body, %entry
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ret void
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}
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declare <4 x i32> @llvm.masked.load.v4i32.p0v4i32(<4 x i32>*, i32 immarg, <4 x i1>, <4 x i32>)
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declare void @llvm.masked.store.v4i32.p0v4i32(<4 x i32>, <4 x i32>*, i32 immarg, <4 x i1>)
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declare <4 x i1> @llvm.arm.mve.vctp32(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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...
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---
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name: test
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alignment: 16
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tracksRegLiveness: true
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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: '$r2', virtual-reg: '' }
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frameInfo:
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stackSize: 8
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offsetAdjustment: 0
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maxAlignment: 4
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fixedStack: []
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stack:
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- { id: 0, name: '', type: spill-slot, offset: -4, size: 4, alignment: 4,
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stack-id: default, callee-saved-register: '$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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callSites: []
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constants:
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- id: 0
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value: '<4 x i32> <i32 0, i32 1, i32 2, i32 3>'
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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: test
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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
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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: tCMPi8 renamable $r2, 0, 14 /* CC::al */, $noreg, implicit-def $cpsr
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; CHECK: t2IT 0, 8, implicit-def $itstate
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; CHECK: frame-destroy tPOP_RET 0 /* CC::eq */, killed $cpsr, def $r7, def $pc, 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: $r0, $r1, $r2
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; CHECK: renamable $q2 = MVE_VMOVimmi32 4, 0, $noreg, undef renamable $q2
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; CHECK: renamable $r3 = tLEApcrel %const.0, 14 /* CC::al */, $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, dead $cpsr = tLSRri renamable $r2, 1, 14 /* CC::al */, $noreg
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; CHECK: renamable $q1 = MVE_VDUP32 killed renamable $r3, 0, $noreg, undef renamable $q1
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; CHECK: $lr = MVE_DLSTP_32 killed renamable $r2
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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, $q1, $q2, $r0, $r1
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; CHECK: MVE_VPTv4u32 4, renamable $q1, renamable $q0, 8, implicit-def $vpr
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; CHECK: renamable $r1, renamable $q3 = MVE_VLDRWU32_post killed renamable $r1, 16, 1, renamable $vpr :: (load 16 from %ir.lsr.iv35, align 4)
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; CHECK: renamable $r0 = MVE_VSTRWU32_post killed renamable $q3, killed renamable $r0, 16, 1, killed renamable $vpr :: (store 16 into %ir.lsr.iv12, align 4)
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; CHECK: renamable $q0 = MVE_VADDi32 killed renamable $q0, renamable $q2, 0, $noreg, undef renamable $q0
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; CHECK: $lr = MVE_LETP killed renamable $lr, %bb.2
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; CHECK: bb.3.for.cond.cleanup:
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; CHECK: frame-destroy tPOP_RET 14 /* CC::al */, $noreg, def $r7, def $pc
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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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frame-setup tPUSH 14 /* CC::al */, $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 /* CC::al */, $noreg
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frame-setup CFI_INSTRUCTION def_cfa_register $r7
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tCMPi8 renamable $r2, 0, 14 /* CC::al */, $noreg, implicit-def $cpsr
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t2IT 0, 8, implicit-def $itstate
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frame-destroy tPOP_RET 0 /* CC::eq */, killed $cpsr, def $r7, def $pc, 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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renamable $r3, dead $cpsr = tADDi3 renamable $r2, 3, 14 /* CC::al */, $noreg
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renamable $q2 = MVE_VMOVimmi32 4, 0, $noreg, undef renamable $q2
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renamable $r3 = t2BICri killed renamable $r3, 3, 14 /* CC::al */, $noreg, $noreg
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renamable $r12 = t2SUBri killed renamable $r3, 4, 14 /* CC::al */, $noreg, $noreg
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renamable $r3, dead $cpsr = tMOVi8 1, 14 /* CC::al */, $noreg
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renamable $lr = nuw nsw t2ADDrs killed renamable $r3, killed renamable $r12, 19, 14 /* CC::al */, $noreg, $noreg
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renamable $r3 = tLEApcrel %const.0, 14 /* CC::al */, $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, dead $cpsr = tLSRri renamable $r2, 1, 14 /* CC::al */, $noreg
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renamable $q1 = MVE_VDUP32 killed renamable $r3, 0, $noreg, undef renamable $q1
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$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, $q1, $q2, $r0, $r1, $r2
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renamable $vpr = MVE_VCTP32 renamable $r2, 0, $noreg
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renamable $r2, dead $cpsr = tSUBi8 killed renamable $r2, 4, 14 /* CC::al */, $noreg
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MVE_VPST 2, implicit $vpr
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renamable $vpr = MVE_VCMPu32 renamable $q1, renamable $q0, 8, 1, killed renamable $vpr
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renamable $r1, renamable $q3 = MVE_VLDRWU32_post killed renamable $r1, 16, 1, renamable $vpr :: (load 16 from %ir.lsr.iv35, align 4)
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renamable $r0 = MVE_VSTRWU32_post killed renamable $q3, killed renamable $r0, 16, 1, killed renamable $vpr :: (store 16 into %ir.lsr.iv12, align 4)
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renamable $q0 = MVE_VADDi32 killed renamable $q0, renamable $q2, 0, $noreg, undef renamable $q0
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renamable $lr = t2LoopDec killed renamable $lr, 1
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t2LoopEnd renamable $lr, %bb.2, implicit-def dead $cpsr
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tB %bb.3, 14 /* CC::al */, $noreg
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bb.3.for.cond.cleanup:
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frame-destroy tPOP_RET 14 /* CC::al */, $noreg, def $r7, def $pc
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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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