# 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 - | FileCheck %s
--- |
define dso_local <4 x i32> @invariant_predicated_add_use(ptr nocapture readonly %a, ptr %c, i32 %N, <4 x i32> %pass) #0 {
entry:
%cmp9 = icmp eq i32 %N, 0
%tmp = add i32 %N, 3
%tmp1 = lshr i32 %tmp, 2
%tmp2 = shl nuw i32 %tmp1, 2
%tmp3 = add i32 %tmp2, -4
%tmp4 = lshr i32 %tmp3, 2
%tmp5 = add nuw nsw i32 %tmp4, 1
br i1 %cmp9, label %exit, label %vector.ph
vector.ph: ; preds = %entry
%start = call i32 @llvm.start.loop.iterations.i32(i32 %tmp5)
br label %vector.body
vector.body: ; preds = %vector.body, %vector.ph
%lsr.iv1 = phi i32 [ %lsr.iv.next, %vector.body ], [ %start, %vector.ph ]
%lsr.iv = phi ptr [ %scevgep, %vector.body ], [ %a, %vector.ph ]
%tmp7 = phi i32 [ %N, %vector.ph ], [ %tmp9, %vector.body ]
%lsr.iv17 = bitcast ptr %lsr.iv to ptr
%tmp8 = call <4 x i1> @llvm.arm.mve.vctp32(i32 %tmp7)
%tmp9 = sub i32 %tmp7, 4
%wide.masked.load = call <4 x i16> @llvm.masked.load.v4i16.p0(ptr %lsr.iv17, i32 2, <4 x i1> %tmp8, <4 x i16> undef)
%tmp10 = sext <4 x i16> %wide.masked.load to <4 x i32>
%acc.next = tail call <4 x i32> @llvm.arm.mve.add.predicated.v4i32.v4i1(<4 x i32> %pass, <4 x i32> %tmp10, <4 x i1> %tmp8, <4 x i32> undef)
%scevgep = getelementptr i16, ptr %lsr.iv, i32 4
%tmp11 = call i32 @llvm.loop.decrement.reg.i32.i32.i32(i32 %lsr.iv1, i32 1)
%tmp12 = icmp ne i32 %tmp11, 0
%lsr.iv.next = add nsw i32 %lsr.iv1, -1
br i1 %tmp12, label %vector.body, label %exit
exit: ; preds = %vector.body, %entry
%res = phi <4 x i32> [ zeroinitializer, %entry ], [ %acc.next, %vector.body ]
ret <4 x i32> %res
}
declare <4 x i16> @llvm.masked.load.v4i16.p0(ptr, i32 immarg, <4 x i1>, <4 x i16>)
declare i32 @llvm.start.loop.iterations.i32(i32)
declare i32 @llvm.loop.decrement.reg.i32.i32.i32(i32, i32)
declare <4 x i1> @llvm.arm.mve.vctp32(i32)
declare <4 x i32> @llvm.arm.mve.add.predicated.v4i32.v4i1(<4 x i32>, <4 x i32>, <4 x i1>, <4 x i32>)
...
---
name: invariant_predicated_add_use
alignment: 2
tracksRegLiveness: true
registers: []
liveins:
- { reg: '$r0', virtual-reg: '' }
- { reg: '$r2', virtual-reg: '' }
frameInfo:
stackSize: 8
offsetAdjustment: 0
maxAlignment: 8
fixedStack:
- { id: 0, type: default, offset: 0, size: 16, alignment: 8, stack-id: default,
isImmutable: true, isAliased: false, callee-saved-register: '', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
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: invariant_predicated_add_use
; CHECK: bb.0.entry:
; CHECK-NEXT: successors: %bb.3(0x30000000), %bb.1(0x50000000)
; CHECK-NEXT: liveins: $lr, $r0, $r2, $r7
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: frame-setup tPUSH 14 /* CC::al */, $noreg, killed $r7, killed $lr, implicit-def $sp, implicit $sp
; CHECK-NEXT: frame-setup CFI_INSTRUCTION def_cfa_offset 8
; CHECK-NEXT: frame-setup CFI_INSTRUCTION offset $lr, -4
; CHECK-NEXT: frame-setup CFI_INSTRUCTION offset $r7, -8
; CHECK-NEXT: tCBZ $r2, %bb.3
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: bb.1.vector.ph:
; CHECK-NEXT: successors: %bb.2(0x80000000)
; CHECK-NEXT: liveins: $r0, $r2
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: renamable $r1 = tADDrSPi $sp, 2, 14 /* CC::al */, $noreg
; CHECK-NEXT: renamable $q0 = MVE_VLDRWU32 killed renamable $r1, 0, 0, $noreg, $noreg :: (load (s128) from %fixed-stack.0, align 8)
; CHECK-NEXT: $lr = MVE_DLSTP_32 killed renamable $r2
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: bb.2.vector.body:
; CHECK-NEXT: successors: %bb.2(0x7c000000), %bb.4(0x04000000)
; CHECK-NEXT: liveins: $lr, $q0, $r0
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: renamable $r0, renamable $q1 = MVE_VLDRHS32_post killed renamable $r0, 8, 0, $noreg, $noreg :: (load (s64) from %ir.lsr.iv17, align 2)
; CHECK-NEXT: renamable $q1 = MVE_VADDi32 renamable $q0, killed renamable $q1, 0, killed $noreg, $noreg, undef renamable $q1
; CHECK-NEXT: $lr = MVE_LETP killed renamable $lr, %bb.2
; CHECK-NEXT: tB %bb.4, 14 /* CC::al */, $noreg
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: bb.3:
; CHECK-NEXT: successors: %bb.4(0x80000000)
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: renamable $q1 = MVE_VMOVimmi32 0, 0, $noreg, $noreg, undef renamable $q1
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: bb.4.exit:
; CHECK-NEXT: liveins: $q1
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: renamable $r0, renamable $r1 = VMOVRRD renamable $d2, 14 /* CC::al */, $noreg
; CHECK-NEXT: renamable $r2, renamable $r3 = VMOVRRD killed renamable $d3, 14 /* CC::al */, $noreg, implicit killed $q1
; CHECK-NEXT: tPOP_RET 14 /* CC::al */, $noreg, def $r7, def $pc, implicit killed $r0, implicit killed $r1, implicit killed $r2, implicit killed $r3
bb.0.entry:
successors: %bb.3(0x30000000), %bb.1(0x50000000)
liveins: $r0, $r2, $r7, $lr
frame-setup tPUSH 14 /* CC::al */, $noreg, killed $r7, 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
tCBZ $r2, %bb.3
bb.1.vector.ph:
successors: %bb.2(0x80000000)
liveins: $r0, $r2
renamable $r1, dead $cpsr = tADDi3 renamable $r2, 3, 14 /* CC::al */, $noreg
renamable $r3, dead $cpsr = tMOVi8 1, 14 /* CC::al */, $noreg
renamable $r1 = t2BICri killed renamable $r1, 3, 14 /* CC::al */, $noreg, $noreg
renamable $r1, dead $cpsr = tSUBi8 killed renamable $r1, 4, 14 /* CC::al */, $noreg
renamable $r3 = nuw nsw t2ADDrs killed renamable $r3, killed renamable $r1, 19, 14 /* CC::al */, $noreg, $noreg
renamable $r1 = tADDrSPi $sp, 2, 14 /* CC::al */, $noreg
renamable $q0 = MVE_VLDRWU32 killed renamable $r1, 0, 0, $noreg, $noreg :: (load (s128) from %fixed-stack.0, align 8)
$lr = t2DoLoopStart renamable $r3
$r1 = tMOVr killed $r3, 14 /* CC::al */, $noreg
bb.2.vector.body:
successors: %bb.2(0x7c000000), %bb.4(0x04000000)
liveins: $q0, $r0, $r1, $r2
renamable $vpr = MVE_VCTP32 renamable $r2, 0, $noreg, $noreg
$lr = tMOVr $r1, 14 /* CC::al */, $noreg
renamable $r1, dead $cpsr = nsw tSUBi8 killed $r1, 1, 14 /* CC::al */, $noreg
renamable $r2, dead $cpsr = tSUBi8 killed renamable $r2, 4, 14 /* CC::al */, $noreg
renamable $lr = t2LoopDec killed renamable $lr, 1
MVE_VPST 4, implicit $vpr
renamable $r0, renamable $q1 = MVE_VLDRHS32_post killed renamable $r0, 8, 1, renamable $vpr, $noreg :: (load (s64) from %ir.lsr.iv17, align 2)
renamable $q1 = MVE_VADDi32 renamable $q0, killed renamable $q1, 1, killed renamable $vpr, $noreg, undef renamable $q1
t2LoopEnd killed renamable $lr, %bb.2, implicit-def dead $cpsr
tB %bb.4, 14 /* CC::al */, $noreg
bb.3:
successors: %bb.4(0x80000000)
renamable $q1 = MVE_VMOVimmi32 0, 0, $noreg, $noreg, undef renamable $q1
bb.4.exit:
liveins: $q1
renamable $r0, renamable $r1 = VMOVRRD renamable $d2, 14 /* CC::al */, $noreg
renamable $r2, renamable $r3 = VMOVRRD killed renamable $d3, 14 /* CC::al */, $noreg, implicit $q1
tPOP_RET 14 /* CC::al */, $noreg, def $r7, def $pc, implicit killed $r0, implicit killed $r1, implicit killed $r2, implicit killed $r3
...
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