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llvm-for-llvmta/test/CodeGen/Thumb2/LowOverheadLoops/safe-retaining.mir

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# 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 arm_aapcs_vfpcc void @test_vqrshruntq_n_s32(<4 x i32>* %a, <4 x i32>* %b, <4 x i32>* %c, i32 %elts, i32 %iters) {
entry:
%cmp = icmp slt i32 %elts, 1
br i1 %cmp, label %exit, label %loop.ph
loop.ph: ; preds = %entry
%start = call i32 @llvm.start.loop.iterations.i32(i32 %iters)
br label %loop.body
loop.body: ; preds = %loop.body, %loop.ph
%lsr.iv = phi i32 [ %lsr.iv.next, %loop.body ], [ %start, %loop.ph ]
%count = phi i32 [ %elts, %loop.ph ], [ %elts.rem, %loop.body ]
%addr.a = phi <4 x i32>* [ %a, %loop.ph ], [ %addr.a.next, %loop.body ]
%addr.b = phi <4 x i32>* [ %b, %loop.ph ], [ %addr.b.next, %loop.body ]
%addr.c = phi <4 x i32>* [ %c, %loop.ph ], [ %addr.c.next, %loop.body ]
%pred = call <4 x i1> @llvm.arm.mve.vctp32(i32 %count)
%elts.rem = sub i32 %count, 4
%masked.load.a = call <4 x i32> @llvm.masked.load.v4i32.p0v4i32(<4 x i32>* %addr.a, i32 4, <4 x i1> %pred, <4 x i32> undef)
%masked.load.b = call <4 x i32> @llvm.masked.load.v4i32.p0v4i32(<4 x i32>* %addr.b, i32 4, <4 x i1> %pred, <4 x i32> undef)
%bitcast.a = bitcast <4 x i32> %masked.load.a to <8 x i16>
%shrn = call <8 x i16> @llvm.arm.mve.vshrn.v8i16.v4i32(<8 x i16> %bitcast.a, <4 x i32> %masked.load.b, i32 3, i32 1, i32 0, i32 1, i32 0, i32 1)
%bitcast = bitcast <8 x i16> %shrn to <4 x i32>
call void @llvm.masked.store.v4i32.p0v4i32(<4 x i32> %bitcast, <4 x i32>* %addr.c, i32 4, <4 x i1> %pred)
%addr.a.next = getelementptr <4 x i32>, <4 x i32>* %addr.a, i32 1
%addr.b.next = getelementptr <4 x i32>, <4 x i32>* %addr.b, i32 1
%addr.c.next = getelementptr <4 x i32>, <4 x i32>* %addr.c, i32 1
%loop.dec = call i32 @llvm.loop.decrement.reg.i32.i32.i32(i32 %lsr.iv, i32 1)
%end = icmp ne i32 %loop.dec, 0
%lsr.iv.next = add i32 %lsr.iv, -1
br i1 %end, label %loop.body, label %exit
exit: ; preds = %loop.body, %entry
ret void
}
define arm_aapcs_vfpcc void @test_vqrshruntq_n_s16(<8 x i16>* %a, <8 x i16>* %b, <8 x i16>* %c, i32 %elts, i32 %iters) {
entry:
%cmp = icmp slt i32 %elts, 1
br i1 %cmp, label %exit, label %loop.ph
loop.ph: ; preds = %entry
%start = call i32 @llvm.start.loop.iterations.i32(i32 %iters)
br label %loop.body
loop.body: ; preds = %loop.body, %loop.ph
%lsr.iv = phi i32 [ %lsr.iv.next, %loop.body ], [ %start, %loop.ph ]
%count = phi i32 [ %elts, %loop.ph ], [ %elts.rem, %loop.body ]
%addr.a = phi <8 x i16>* [ %a, %loop.ph ], [ %addr.a.next, %loop.body ]
%addr.b = phi <8 x i16>* [ %b, %loop.ph ], [ %addr.b.next, %loop.body ]
%addr.c = phi <8 x i16>* [ %c, %loop.ph ], [ %addr.c.next, %loop.body ]
%pred = call <8 x i1> @llvm.arm.mve.vctp16(i32 %count)
%elts.rem = sub i32 %count, 8
%masked.load.a = call <8 x i16> @llvm.masked.load.v8i16.p0v8i16(<8 x i16>* %addr.a, i32 2, <8 x i1> %pred, <8 x i16> undef)
%masked.load.b = call <8 x i16> @llvm.masked.load.v8i16.p0v8i16(<8 x i16>* %addr.b, i32 2, <8 x i1> %pred, <8 x i16> undef)
%bitcast.a = bitcast <8 x i16> %masked.load.a to <16 x i8>
%shrn = call <16 x i8> @llvm.arm.mve.vshrn.v16i8.v8i16(<16 x i8> %bitcast.a, <8 x i16> %masked.load.b, i32 1, i32 1, i32 0, i32 1, i32 0, i32 1)
%bitcast = bitcast <16 x i8> %shrn to <8 x i16>
call void @llvm.masked.store.v8i16.p0v8i16(<8 x i16> %bitcast, <8 x i16>* %addr.c, i32 2, <8 x i1> %pred)
%addr.a.next = getelementptr <8 x i16>, <8 x i16>* %addr.b, i32 1
%addr.b.next = getelementptr <8 x i16>, <8 x i16>* %addr.b, i32 1
%addr.c.next = getelementptr <8 x i16>, <8 x i16>* %addr.c, i32 1
%loop.dec = call i32 @llvm.loop.decrement.reg.i32.i32.i32(i32 %lsr.iv, i32 1)
%end = icmp ne i32 %loop.dec, 0
%lsr.iv.next = add i32 %lsr.iv, -1
br i1 %end, label %loop.body, label %exit
exit: ; preds = %loop.body, %entry
ret void
}
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.masked.load.v4i32.p0v4i32(<4 x i32>*, i32 immarg, <4 x i1>, <4 x i32>)
declare void @llvm.masked.store.v4i32.p0v4i32(<4 x i32>, <4 x i32>*, i32 immarg, <4 x i1>)
declare <8 x i16> @llvm.arm.mve.vshrn.v8i16.v4i32(<8 x i16>, <4 x i32>, i32, i32, i32, i32, i32, i32)
declare <8 x i1> @llvm.arm.mve.vctp16(i32)
declare <8 x i16> @llvm.masked.load.v8i16.p0v8i16(<8 x i16>*, i32 immarg, <8 x i1>, <8 x i16>)
declare void @llvm.masked.store.v8i16.p0v8i16(<8 x i16>, <8 x i16>*, i32 immarg, <8 x i1>)
declare <16 x i8> @llvm.arm.mve.vshrn.v16i8.v8i16(<16 x i8>, <8 x i16>, i32, i32, i32, i32, i32, i32)
...
---
name: test_vqrshruntq_n_s32
alignment: 2
tracksRegLiveness: true
registers: []
liveins:
- { reg: '$r0', virtual-reg: '' }
- { reg: '$r1', virtual-reg: '' }
- { reg: '$r2', virtual-reg: '' }
- { reg: '$r3', virtual-reg: '' }
frameInfo:
stackSize: 8
offsetAdjustment: 0
maxAlignment: 4
restorePoint: ''
fixedStack:
- { id: 0, type: default, offset: 0, size: 4, 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: '$lr', callee-saved-restored: false,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
- { id: 1, name: '', type: spill-slot, offset: -8, size: 4, alignment: 4,
stack-id: default, callee-saved-register: '$r4', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
callSites: []
constants: []
machineFunctionInfo: {}
body: |
; CHECK-LABEL: name: test_vqrshruntq_n_s32
; CHECK: bb.0.entry:
; CHECK: successors: %bb.1(0x80000000)
; CHECK: liveins: $lr, $r0, $r1, $r2, $r3, $r4
; CHECK: frame-setup tPUSH 14 /* CC::al */, $noreg, killed $r4, 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 $r4, -8
; CHECK: tCMPi8 renamable $r3, 1, 14 /* CC::al */, $noreg, implicit-def $cpsr
; CHECK: t2IT 11, 8, implicit-def $itstate
; CHECK: tPOP_RET 11 /* CC::lt */, killed $cpsr, def $r4, def $pc, implicit killed $itstate
; CHECK: bb.1.loop.ph:
; CHECK: successors: %bb.2(0x80000000)
; CHECK: liveins: $r0, $r1, $r2, $r3
; CHECK: renamable $r4 = tLDRspi $sp, 2, 14 /* CC::al */, $noreg :: (load 4 from %fixed-stack.0, align 8)
; CHECK: dead $lr = MVE_DLSTP_32 killed renamable $r3
; CHECK: $r12 = tMOVr killed $r4, 14 /* CC::al */, $noreg
; CHECK: bb.2.loop.body:
; CHECK: successors: %bb.2(0x7c000000), %bb.3(0x04000000)
; CHECK: liveins: $r0, $r1, $r2, $r12
; CHECK: $lr = tMOVr $r12, 14 /* CC::al */, $noreg
; CHECK: renamable $r12 = t2SUBri killed $r12, 1, 14 /* CC::al */, $noreg, $noreg
; CHECK: renamable $r1, renamable $q0 = MVE_VLDRWU32_post killed renamable $r1, 16, 0, $noreg :: (load 16 from %ir.addr.b, align 4)
; CHECK: renamable $r0, renamable $q1 = MVE_VLDRWU32_post killed renamable $r0, 16, 0, $noreg :: (load 16 from %ir.addr.a, align 4)
; CHECK: renamable $q1 = MVE_VQSHRUNs32th killed renamable $q1, killed renamable $q0, 3, 0, $noreg
; CHECK: renamable $r2 = MVE_VSTRWU32_post killed renamable $q1, killed renamable $r2, 16, 0, killed $noreg :: (store 16 into %ir.addr.c, align 4)
; CHECK: dead $lr = MVE_LETP killed renamable $lr, %bb.2
; CHECK: bb.3.exit:
; CHECK: tPOP_RET 14 /* CC::al */, $noreg, def $r4, def $pc
bb.0.entry:
successors: %bb.1(0x80000000)
liveins: $r0, $r1, $r2, $r3, $r4, $lr
frame-setup tPUSH 14 /* CC::al */, $noreg, killed $r4, 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 $r4, -8
tCMPi8 renamable $r3, 1, 14 /* CC::al */, $noreg, implicit-def $cpsr
t2IT 11, 8, implicit-def $itstate
tPOP_RET 11 /* CC::lt */, killed $cpsr, def $r4, def $pc, implicit killed $itstate
bb.1.loop.ph:
successors: %bb.2(0x80000000)
liveins: $r0, $r1, $r2, $r3, $r4, $lr
renamable $r4 = tLDRspi $sp, 2, 14 /* CC::al */, $noreg :: (load 4 from %fixed-stack.0, align 8)
$lr = t2DoLoopStart renamable $r4
$r12 = tMOVr killed $r4, 14 /* CC::al */, $noreg
bb.2.loop.body:
successors: %bb.2(0x7c000000), %bb.3(0x04000000)
liveins: $r0, $r1, $r2, $r3, $r12
renamable $vpr = MVE_VCTP32 renamable $r3, 0, $noreg
$lr = tMOVr $r12, 14 /* CC::al */, $noreg
renamable $r12 = t2SUBri killed $r12, 1, 14 /* CC::al */, $noreg, $noreg
renamable $r3, dead $cpsr = tSUBi8 killed renamable $r3, 4, 14 /* CC::al */, $noreg
MVE_VPST 4, implicit $vpr
renamable $r1, renamable $q0 = MVE_VLDRWU32_post killed renamable $r1, 16, 1, renamable $vpr :: (load 16 from %ir.addr.b, align 4)
renamable $r0, renamable $q1 = MVE_VLDRWU32_post killed renamable $r0, 16, 1, renamable $vpr :: (load 16 from %ir.addr.a, align 4)
renamable $lr = t2LoopDec killed renamable $lr, 1
renamable $q1 = MVE_VQSHRUNs32th killed renamable $q1, killed renamable $q0, 3, 0, $noreg
MVE_VPST 8, implicit $vpr
renamable $r2 = MVE_VSTRWU32_post killed renamable $q1, killed renamable $r2, 16, 1, killed renamable $vpr :: (store 16 into %ir.addr.c, align 4)
t2LoopEnd killed renamable $lr, %bb.2, implicit-def dead $cpsr
tB %bb.3, 14 /* CC::al */, $noreg
bb.3.exit:
tPOP_RET 14 /* CC::al */, $noreg, def $r4, def $pc
...
---
name: test_vqrshruntq_n_s16
alignment: 2
tracksRegLiveness: true
registers: []
liveins:
- { reg: '$r0', virtual-reg: '' }
- { reg: '$r1', virtual-reg: '' }
- { reg: '$r2', virtual-reg: '' }
- { reg: '$r3', virtual-reg: '' }
frameInfo:
stackSize: 8
offsetAdjustment: 0
maxAlignment: 4
fixedStack:
- { id: 0, type: default, offset: 0, size: 4, alignment: 8, stack-id: default,
isImmutable: true, isAliased: false, callee-saved-register: '', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
stack:
- { id: 0, name: '', type: spill-slot, offset: -4, size: 4, alignment: 4,
stack-id: default, callee-saved-register: '$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: '$r4', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
callSites: []
constants: []
machineFunctionInfo: {}
body: |
; CHECK-LABEL: name: test_vqrshruntq_n_s16
; CHECK: bb.0.entry:
; CHECK: successors: %bb.1(0x80000000)
; CHECK: liveins: $lr, $r0, $r1, $r2, $r3, $r4
; CHECK: frame-setup tPUSH 14 /* CC::al */, $noreg, killed $r4, 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 $r4, -8
; CHECK: tCMPi8 renamable $r3, 1, 14 /* CC::al */, $noreg, implicit-def $cpsr
; CHECK: t2IT 11, 8, implicit-def $itstate
; CHECK: tPOP_RET 11 /* CC::lt */, killed $cpsr, def $r4, def $pc, implicit killed $itstate
; CHECK: bb.1.loop.ph:
; CHECK: successors: %bb.2(0x80000000)
; CHECK: liveins: $r0, $r1, $r2, $r3
; CHECK: renamable $r12 = t2LDRi12 $sp, 8, 14 /* CC::al */, $noreg :: (load 4 from %fixed-stack.0, align 8)
; CHECK: dead $lr = MVE_DLSTP_16 killed renamable $r3
; CHECK: $r4 = tMOVr killed $r12, 14 /* CC::al */, $noreg
; CHECK: bb.2.loop.body:
; CHECK: successors: %bb.2(0x7c000000), %bb.3(0x04000000)
; CHECK: liveins: $r0, $r1, $r2, $r4
; CHECK: $lr = tMOVr $r4, 14 /* CC::al */, $noreg
; CHECK: renamable $r4, dead $cpsr = tSUBi8 killed $r4, 1, 14 /* CC::al */, $noreg
; CHECK: renamable $r1, renamable $q0 = MVE_VLDRHU16_post killed renamable $r1, 16, 0, $noreg :: (load 16 from %ir.addr.b, align 2)
; CHECK: renamable $q1 = MVE_VLDRHU16 killed renamable $r0, 0, 0, $noreg :: (load 16 from %ir.addr.a, align 2)
; CHECK: $r0 = tMOVr $r1, 14 /* CC::al */, $noreg
; CHECK: renamable $q1 = MVE_VQSHRUNs16th killed renamable $q1, killed renamable $q0, 1, 0, $noreg
; CHECK: renamable $r2 = MVE_VSTRHU16_post killed renamable $q1, killed renamable $r2, 16, 0, killed $noreg :: (store 16 into %ir.addr.c, align 2)
; CHECK: dead $lr = MVE_LETP killed renamable $lr, %bb.2
; CHECK: bb.3.exit:
; CHECK: tPOP_RET 14 /* CC::al */, $noreg, def $r4, def $pc
bb.0.entry:
successors: %bb.1(0x80000000)
liveins: $r0, $r1, $r2, $r3, $r4, $lr
frame-setup tPUSH 14 /* CC::al */, $noreg, killed $r4, 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 $r4, -8
tCMPi8 renamable $r3, 1, 14 /* CC::al */, $noreg, implicit-def $cpsr
t2IT 11, 8, implicit-def $itstate
tPOP_RET 11 /* CC::lt */, killed $cpsr, def $r4, def $pc, implicit killed $itstate
bb.1.loop.ph:
successors: %bb.2(0x80000000)
liveins: $r0, $r1, $r2, $r3, $r4, $lr
renamable $r12 = t2LDRi12 $sp, 8, 14 /* CC::al */, $noreg :: (load 4 from %fixed-stack.0, align 8)
$lr = t2DoLoopStart renamable $r12
$r4 = tMOVr killed $r12, 14 /* CC::al */, $noreg
bb.2.loop.body:
successors: %bb.2(0x7c000000), %bb.3(0x04000000)
liveins: $r0, $r1, $r2, $r3, $r4
renamable $vpr = MVE_VCTP16 renamable $r3, 0, $noreg
$lr = tMOVr $r4, 14 /* CC::al */, $noreg
renamable $r4, dead $cpsr = tSUBi8 killed $r4, 1, 14 /* CC::al */, $noreg
renamable $r3, dead $cpsr = tSUBi8 killed renamable $r3, 8, 14 /* CC::al */, $noreg
MVE_VPST 4, implicit $vpr
renamable $r1, renamable $q0 = MVE_VLDRHU16_post killed renamable $r1, 16, 1, renamable $vpr :: (load 16 from %ir.addr.b, align 2)
renamable $q1 = MVE_VLDRHU16 killed renamable $r0, 0, 1, renamable $vpr :: (load 16 from %ir.addr.a, align 2)
renamable $lr = t2LoopDec killed renamable $lr, 1
$r0 = tMOVr $r1, 14 /* CC::al */, $noreg
renamable $q1 = MVE_VQSHRUNs16th killed renamable $q1, killed renamable $q0, 1, 0, $noreg
MVE_VPST 8, implicit $vpr
renamable $r2 = MVE_VSTRHU16_post killed renamable $q1, killed renamable $r2, 16, 1, killed renamable $vpr :: (store 16 into %ir.addr.c, align 2)
t2LoopEnd killed renamable $lr, %bb.2, implicit-def dead $cpsr
tB %bb.3, 14 /* CC::al */, $noreg
bb.3.exit:
tPOP_RET 14 /* CC::al */, $noreg, def $r4, def $pc
...
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