183 lines
8.7 KiB
Plaintext
183 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 -o - | FileCheck %s
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--- |
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define dso_local arm_aapcs_vfpcc void @start_before_elems(i32* noalias nocapture %a, i8* nocapture readonly %b, i8* nocapture readonly %c, i32 %N) local_unnamed_addr #0 {
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entry:
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%div = lshr i32 %N, 1
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%cmp9 = icmp eq i32 %div, 0
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%0 = add nuw i32 %div, 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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%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.iv = phi i32* [ %scevgep, %vector.body ], [ %a, %vector.ph ]
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%index = phi i32 [ 0, %vector.ph ], [ %index.next, %vector.body ]
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%6 = phi i32 [ %start, %vector.ph ], [ %13, %vector.body ]
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%7 = phi i32 [ %div, %vector.ph ], [ %9, %vector.body ]
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%lsr.iv1 = bitcast i32* %lsr.iv to <4 x i32>*
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%8 = call <4 x i1> @llvm.arm.mve.vctp32(i32 %7)
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%9 = sub i32 %7, 4
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%scevgep4 = getelementptr i8, i8* %b, i32 %index
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%scevgep45 = bitcast i8* %scevgep4 to <4 x i8>*
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%wide.masked.load = call <4 x i8> @llvm.masked.load.v4i8.p0v4i8(<4 x i8>* %scevgep45, i32 1, <4 x i1> %8, <4 x i8> undef)
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%10 = zext <4 x i8> %wide.masked.load to <4 x i32>
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%scevgep2 = getelementptr i8, i8* %c, i32 %index
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%scevgep23 = bitcast i8* %scevgep2 to <4 x i8>*
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%wide.masked.load13 = call <4 x i8> @llvm.masked.load.v4i8.p0v4i8(<4 x i8>* %scevgep23, i32 1, <4 x i1> %8, <4 x i8> undef)
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%11 = zext <4 x i8> %wide.masked.load13 to <4 x i32>
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%12 = mul nuw nsw <4 x i32> %11, %10
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call void @llvm.masked.store.v4i32.p0v4i32(<4 x i32> %12, <4 x i32>* %lsr.iv1, i32 4, <4 x i1> %8)
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%index.next = add i32 %index, 4
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%scevgep = getelementptr i32, i32* %lsr.iv, i32 4
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%13 = call i32 @llvm.loop.decrement.reg.i32.i32.i32(i32 %6, i32 1)
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%14 = icmp ne i32 %13, 0
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br i1 %14, 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 i8> @llvm.masked.load.v4i8.p0v4i8(<4 x i8>*, i32 immarg, <4 x i1>, <4 x i8>)
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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 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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...
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---
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name: start_before_elems
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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: '$r2', virtual-reg: '' }
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- { reg: '$r3', 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: '$lr', callee-saved-restored: false,
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debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
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- { id: 1, name: '', type: spill-slot, offset: -8, size: 4, alignment: 4,
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stack-id: default, callee-saved-register: '$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: start_before_elems
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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, $r3, $r4
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; CHECK: frame-setup tPUSH 14 /* CC::al */, $noreg, killed $r4, 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 $r4, -8
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; CHECK: renamable $r12 = t2MOVi 0, 14 /* CC::al */, $noreg, $noreg
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; CHECK: t2CMPrs killed renamable $r12, renamable $r3, 11, 14 /* CC::al */, $noreg, implicit-def $cpsr
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; CHECK: t2IT 0, 8, implicit-def $itstate
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; CHECK: tPOP_RET 0 /* CC::eq */, killed $cpsr, def $r4, 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, $r3
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; CHECK: renamable $r12 = t2LSRri killed renamable $r3, 1, 14 /* CC::al */, $noreg, $noreg
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; CHECK: renamable $r3, dead $cpsr = tMOVi8 0, 14 /* CC::al */, $noreg
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; CHECK: $lr = MVE_DLSTP_32 killed renamable $r12
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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, $r0, $r1, $r2, $r3
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; CHECK: renamable $r4, dead $cpsr = tADDrr renamable $r1, renamable $r3, 14 /* CC::al */, $noreg
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; CHECK: renamable $q0 = MVE_VLDRBU32 killed renamable $r4, 0, 0, $noreg :: (load 4 from %ir.scevgep45, align 1)
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; CHECK: renamable $r4, dead $cpsr = tADDrr renamable $r2, renamable $r3, 14 /* CC::al */, $noreg
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; CHECK: renamable $r3, dead $cpsr = tADDi8 killed renamable $r3, 4, 14 /* CC::al */, $noreg
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; CHECK: renamable $q1 = MVE_VLDRBU32 killed renamable $r4, 0, 0, $noreg :: (load 4 from %ir.scevgep23, align 1)
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; CHECK: renamable $q0 = nuw nsw MVE_VMULi32 killed renamable $q1, killed renamable $q0, 0, $noreg, undef renamable $q0
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; CHECK: renamable $r0 = MVE_VSTRWU32_post killed renamable $q0, killed renamable $r0, 16, 0, killed $noreg :: (store 16 into %ir.lsr.iv1, align 4)
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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: tPOP_RET 14 /* CC::al */, $noreg, def $r4, def $pc
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bb.0.entry:
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successors: %bb.1(0x80000000)
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liveins: $r0, $r1, $r2, $r3, $r4, $lr
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frame-setup tPUSH 14, $noreg, killed $r4, 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 $r4, -8
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renamable $r12 = t2MOVi 0, 14, $noreg, $noreg
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t2CMPrs killed renamable $r12, renamable $r3, 11, 14, $noreg, implicit-def $cpsr
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t2IT 0, 8, implicit-def $itstate
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tPOP_RET 0, killed $cpsr, def $r4, 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, $r3, $r4, $lr
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renamable $r12 = t2MOVi 3, 14, $noreg, $noreg
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renamable $lr = t2MOVi 1, 14, $noreg, $noreg
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renamable $r12 = nuw t2ADDrs killed renamable $r12, renamable $r3, 11, 14, $noreg, $noreg
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renamable $r12 = t2BICri killed renamable $r12, 3, 14, $noreg, $noreg
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renamable $r12 = t2SUBri killed renamable $r12, 4, 14, $noreg, $noreg
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renamable $r5 = nuw nsw t2ADDrs killed renamable $lr, killed renamable $r12, 19, 14, $noreg, $noreg
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renamable $r12 = t2LSRri killed renamable $r3, 1, 14, $noreg, $noreg
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renamable $r3, dead $cpsr = tMOVi8 0, 14, $noreg
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$lr = t2DoLoopStart renamable $r5
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$lr = tMOVr killed $r5, 14, $noreg
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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, $r0, $r1, $r2, $r3, $r12
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renamable $r4, dead $cpsr = tADDrr renamable $r1, renamable $r3, 14, $noreg
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renamable $vpr = MVE_VCTP32 renamable $r12, 0, $noreg
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MVE_VPST 8, implicit $vpr
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renamable $q0 = MVE_VLDRBU32 killed renamable $r4, 0, 1, renamable $vpr :: (load 4 from %ir.scevgep45, align 1)
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renamable $r4, dead $cpsr = tADDrr renamable $r2, renamable $r3, 14, $noreg
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renamable $r3, dead $cpsr = tADDi8 killed renamable $r3, 4, 14, $noreg
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renamable $r12 = t2SUBri killed renamable $r12, 4, 14, $noreg, $noreg
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MVE_VPST 8, implicit $vpr
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renamable $q1 = MVE_VLDRBU32 killed renamable $r4, 0, 1, renamable $vpr :: (load 4 from %ir.scevgep23, align 1)
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renamable $q0 = nuw nsw MVE_VMULi32 killed renamable $q1, killed renamable $q0, 0, $noreg, undef renamable $q0
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MVE_VPST 8, implicit $vpr
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renamable $r0 = MVE_VSTRWU32_post killed renamable $q0, killed renamable $r0, 16, 1, killed renamable $vpr :: (store 16 into %ir.lsr.iv1, align 4)
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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, $noreg
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bb.3.for.cond.cleanup:
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tPOP_RET 14, $noreg, def $r4, def $pc
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...
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