# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple=thumbv8.1m.main -mattr=+mve -run-pass=arm-low-overhead-loops %s -o - --verify-machineinstrs | FileCheck %s
--- |
define dso_local arm_aapcs_vfpcc void @non_masked_store(i8* noalias nocapture %res, i8* nocapture readonly %a, i8* nocapture readonly %b, i32 %N) {
entry:
%cmp10 = icmp eq i32 %N, 0
%0 = add i32 %N, 15
%1 = lshr i32 %0, 4
%2 = shl nuw i32 %1, 4
%3 = add i32 %2, -16
%4 = lshr i32 %3, 4
%5 = add nuw nsw i32 %4, 1
br i1 %cmp10, label %for.cond.cleanup, label %vector.ph
vector.ph: ; preds = %entry
%start = call i32 @llvm.start.loop.iterations.i32(i32 %5)
br label %vector.body
vector.body: ; preds = %vector.body, %vector.ph
%lsr.iv19 = phi i8* [ %scevgep20, %vector.body ], [ %res, %vector.ph ]
%lsr.iv16 = phi i8* [ %scevgep17, %vector.body ], [ %b, %vector.ph ]
%lsr.iv = phi i8* [ %scevgep, %vector.body ], [ %a, %vector.ph ]
%6 = phi i32 [ %start, %vector.ph ], [ %11, %vector.body ]
%7 = phi i32 [ %N, %vector.ph ], [ %9, %vector.body ]
%lsr.iv1921 = bitcast i8* %lsr.iv19 to <16 x i8>*
%lsr.iv1618 = bitcast i8* %lsr.iv16 to <16 x i8>*
%lsr.iv15 = bitcast i8* %lsr.iv to <16 x i8>*
%8 = call <16 x i1> @llvm.arm.mve.vctp8(i32 %7)
%9 = sub i32 %7, 16
%wide.masked.load = call <16 x i8> @llvm.masked.load.v16i8.p0v16i8(<16 x i8>* %lsr.iv15, i32 1, <16 x i1> %8, <16 x i8> undef)
%wide.masked.load14 = call <16 x i8> @llvm.masked.load.v16i8.p0v16i8(<16 x i8>* %lsr.iv1618, i32 1, <16 x i1> %8, <16 x i8> undef)
%10 = add <16 x i8> %wide.masked.load14, %wide.masked.load
store <16 x i8> %10, <16 x i8>* %lsr.iv1921
%scevgep = getelementptr i8, i8* %lsr.iv, i32 16
%scevgep17 = getelementptr i8, i8* %lsr.iv16, i32 16
%scevgep20 = getelementptr i8, i8* %lsr.iv19, i32 16
%11 = call i32 @llvm.loop.decrement.reg.i32.i32.i32(i32 %6, i32 1)
%12 = icmp ne i32 %11, 0
br i1 %12, label %vector.body, label %for.cond.cleanup
for.cond.cleanup: ; preds = %vector.body, %entry
ret void
}
declare <16 x i8> @llvm.masked.load.v16i8.p0v16i8(<16 x i8>*, i32 immarg, <16 x i1>, <16 x i8>)
declare void @llvm.masked.store.v16i8.p0v16i8(<16 x i8>, <16 x i8>*, i32 immarg, <16 x i1>)
declare i32 @llvm.start.loop.iterations.i32(i32)
declare i32 @llvm.loop.decrement.reg.i32.i32.i32(i32, i32)
declare <16 x i1> @llvm.arm.mve.vctp8(i32)
...
---
name: non_masked_store
alignment: 2
exposesReturnsTwice: false
legalized: false
regBankSelected: false
selected: false
failedISel: false
tracksRegLiveness: true
hasWinCFI: false
registers: []
liveins:
- { reg: '$r0', virtual-reg: '' }
- { reg: '$r1', virtual-reg: '' }
- { reg: '$r2', virtual-reg: '' }
- { reg: '$r3', virtual-reg: '' }
frameInfo:
isFrameAddressTaken: false
isReturnAddressTaken: false
hasStackMap: false
hasPatchPoint: false
stackSize: 8
offsetAdjustment: 0
maxAlignment: 4
adjustsStack: false
hasCalls: false
stackProtector: ''
maxCallFrameSize: 0
cvBytesOfCalleeSavedRegisters: 0
hasOpaqueSPAdjustment: false
hasVAStart: false
hasMustTailInVarArgFunc: false
localFrameSize: 0
savePoint: ''
restorePoint: ''
fixedStack: []
stack:
- { id: 0, name: '', type: spill-slot, offset: -4, size: 4, alignment: 4,
stack-id: default, callee-saved-register: '$lr', callee-saved-restored: false,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
- { id: 1, name: '', type: spill-slot, offset: -8, size: 4, alignment: 4,
stack-id: default, callee-saved-register: '$r7', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
callSites: []
constants: []
machineFunctionInfo: {}
body: |
; CHECK-LABEL: name: non_masked_store
; CHECK: bb.0.entry:
; CHECK: successors: %bb.1(0x80000000)
; CHECK: liveins: $lr, $r0, $r1, $r2, $r3
; CHECK: frame-setup tPUSH 14 /* CC::al */, $noreg, killed $lr, implicit-def $sp, implicit $sp
; CHECK: frame-setup CFI_INSTRUCTION def_cfa_offset 8
; CHECK: frame-setup CFI_INSTRUCTION offset $lr, -4
; CHECK: frame-setup CFI_INSTRUCTION offset $r7, -8
; CHECK: dead $r7 = frame-setup tMOVr $sp, 14 /* CC::al */, $noreg
; CHECK: frame-setup CFI_INSTRUCTION def_cfa_register $r7
; CHECK: tCMPi8 renamable $r3, 0, 14 /* CC::al */, $noreg, implicit-def $cpsr
; CHECK: t2IT 0, 8, implicit-def $itstate
; CHECK: tPOP_RET 0 /* CC::eq */, killed $cpsr, def $r7, def $pc, implicit killed $itstate
; CHECK: bb.1.vector.ph:
; CHECK: successors: %bb.2(0x80000000)
; CHECK: liveins: $r0, $r1, $r2, $r3
; CHECK: renamable $r12 = t2ADDri renamable $r3, 15, 14 /* CC::al */, $noreg, $noreg
; CHECK: renamable $lr = t2MOVi 1, 14 /* CC::al */, $noreg, $noreg
; CHECK: renamable $r12 = t2BICri killed renamable $r12, 15, 14 /* CC::al */, $noreg, $noreg
; CHECK: renamable $r12 = t2SUBri killed renamable $r12, 16, 14 /* CC::al */, $noreg, $noreg
; CHECK: renamable $lr = nuw nsw t2ADDrs killed renamable $lr, killed renamable $r12, 35, 14 /* CC::al */, $noreg, $noreg
; CHECK: bb.2.vector.body:
; CHECK: successors: %bb.2(0x7c000000), %bb.3(0x04000000)
; CHECK: liveins: $lr, $r0, $r1, $r2, $r3
; CHECK: renamable $vpr = MVE_VCTP8 renamable $r3, 0, $noreg, $noreg
; CHECK: renamable $r3, dead $cpsr = tSUBi8 killed renamable $r3, 16, 14 /* CC::al */, $noreg
; CHECK: MVE_VPST 4, implicit $vpr
; CHECK: renamable $r1, renamable $q0 = MVE_VLDRBU8_post killed renamable $r1, 16, 1, renamable $vpr, $noreg :: (load (s128) from %ir.lsr.iv15, align 1)
; CHECK: renamable $r2, renamable $q1 = MVE_VLDRBU8_post killed renamable $r2, 16, 1, killed renamable $vpr, $noreg :: (load (s128) from %ir.lsr.iv1618, align 1)
; CHECK: renamable $q0 = MVE_VADDi8 killed renamable $q1, killed renamable $q0, 0, $noreg, $noreg, undef renamable $q0
; CHECK: renamable $r0 = MVE_VSTRBU8_post killed renamable $q0, killed renamable $r0, 16, 1, $noreg, $noreg :: (store (s128) into %ir.lsr.iv1921, align 1)
; CHECK: $lr = t2LEUpdate killed renamable $lr, %bb.2
; CHECK: bb.3.for.cond.cleanup:
; CHECK: tPOP_RET 14 /* CC::al */, $noreg, def $r7, def $pc
bb.0.entry:
successors: %bb.1(0x80000000)
liveins: $r0, $r1, $r2, $r3, $lr
frame-setup tPUSH 14, $noreg, killed $lr, implicit-def $sp, implicit $sp
frame-setup CFI_INSTRUCTION def_cfa_offset 8
frame-setup CFI_INSTRUCTION offset $lr, -4
frame-setup CFI_INSTRUCTION offset $r7, -8
$r7 = frame-setup tMOVr $sp, 14, $noreg
frame-setup CFI_INSTRUCTION def_cfa_register $r7
tCMPi8 renamable $r3, 0, 14, $noreg, implicit-def $cpsr
t2IT 0, 8, implicit-def $itstate
tPOP_RET 0, killed $cpsr, def $r7, def $pc, implicit killed $itstate
bb.1.vector.ph:
successors: %bb.2(0x80000000)
liveins: $r0, $r1, $r2, $r3, $lr
renamable $r12 = t2ADDri renamable $r3, 15, 14, $noreg, $noreg
renamable $lr = t2MOVi 1, 14, $noreg, $noreg
renamable $r12 = t2BICri killed renamable $r12, 15, 14, $noreg, $noreg
renamable $r12 = t2SUBri killed renamable $r12, 16, 14, $noreg, $noreg
renamable $lr = nuw nsw t2ADDrs killed renamable $lr, killed renamable $r12, 35, 14, $noreg, $noreg
$lr = t2DoLoopStart renamable $lr
bb.2.vector.body:
successors: %bb.2(0x7c000000), %bb.3(0x04000000)
liveins: $lr, $r0, $r1, $r2, $r3
renamable $vpr = MVE_VCTP8 renamable $r3, 0, $noreg, $noreg
renamable $r3, dead $cpsr = tSUBi8 killed renamable $r3, 16, 14, $noreg
MVE_VPST 4, implicit $vpr
renamable $r1, renamable $q0 = MVE_VLDRBU8_post killed renamable $r1, 16, 1, renamable $vpr, $noreg :: (load (s128) from %ir.lsr.iv15, align 1)
renamable $r2, renamable $q1 = MVE_VLDRBU8_post killed renamable $r2, 16, 1, renamable $vpr, $noreg :: (load (s128) from %ir.lsr.iv1618, align 1)
renamable $lr = t2LoopDec killed renamable $lr, 1
renamable $q0 = MVE_VADDi8 killed renamable $q1, killed renamable $q0, 0, $noreg, $noreg, undef renamable $q0
renamable $r0 = MVE_VSTRBU8_post killed renamable $q0, killed renamable $r0, 16, 1, $noreg, $noreg :: (store (s128) into %ir.lsr.iv1921, align 1)
t2LoopEnd renamable $lr, %bb.2, implicit-def dead $cpsr
tB %bb.3, 14, $noreg
bb.3.for.cond.cleanup:
tPOP_RET 14, $noreg, def $r7, def $pc
...