1 # NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
2 # RUN: llc -mtriple=thumbv8.1m.main -mattr=+mve -run-pass=arm-low-overhead-loops %s -o - | FileCheck %s
5 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) {
7 %cmp = icmp slt i32 %elts, 1
8 br i1 %cmp, label %exit, label %loop.ph
10 loop.ph: ; preds = %entry
11 %start = call i32 @llvm.start.loop.iterations.i32(i32 %iters)
14 loop.body: ; preds = %loop.body, %loop.ph
15 %lsr.iv = phi i32 [ %lsr.iv.next, %loop.body ], [ %start, %loop.ph ]
16 %count = phi i32 [ %elts, %loop.ph ], [ %elts.rem, %loop.body ]
17 %addr.a = phi <4 x i32>* [ %a, %loop.ph ], [ %addr.a.next, %loop.body ]
18 %addr.b = phi <4 x i32>* [ %b, %loop.ph ], [ %addr.b.next, %loop.body ]
19 %addr.c = phi <4 x i32>* [ %c, %loop.ph ], [ %addr.c.next, %loop.body ]
20 %pred = call <4 x i1> @llvm.arm.mve.vctp32(i32 %count)
21 %elts.rem = sub i32 %count, 4
22 %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)
23 %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)
24 %bitcast.a = bitcast <4 x i32> %masked.load.a to <8 x i16>
25 %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)
26 %bitcast = bitcast <8 x i16> %shrn to <4 x i32>
27 call void @llvm.masked.store.v4i32.p0v4i32(<4 x i32> %bitcast, <4 x i32>* %addr.c, i32 4, <4 x i1> %pred)
28 %addr.a.next = getelementptr <4 x i32>, <4 x i32>* %addr.a, i32 1
29 %addr.b.next = getelementptr <4 x i32>, <4 x i32>* %addr.b, i32 1
30 %addr.c.next = getelementptr <4 x i32>, <4 x i32>* %addr.c, i32 1
31 %loop.dec = call i32 @llvm.loop.decrement.reg.i32.i32.i32(i32 %lsr.iv, i32 1)
32 %end = icmp ne i32 %loop.dec, 0
33 %lsr.iv.next = add i32 %lsr.iv, -1
34 br i1 %end, label %loop.body, label %exit
36 exit: ; preds = %loop.body, %entry
40 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) {
42 %cmp = icmp slt i32 %elts, 1
43 br i1 %cmp, label %exit, label %loop.ph
45 loop.ph: ; preds = %entry
46 %start = call i32 @llvm.start.loop.iterations.i32(i32 %iters)
49 loop.body: ; preds = %loop.body, %loop.ph
50 %lsr.iv = phi i32 [ %lsr.iv.next, %loop.body ], [ %start, %loop.ph ]
51 %count = phi i32 [ %elts, %loop.ph ], [ %elts.rem, %loop.body ]
52 %addr.a = phi <8 x i16>* [ %a, %loop.ph ], [ %addr.a.next, %loop.body ]
53 %addr.b = phi <8 x i16>* [ %b, %loop.ph ], [ %addr.b.next, %loop.body ]
54 %addr.c = phi <8 x i16>* [ %c, %loop.ph ], [ %addr.c.next, %loop.body ]
55 %pred = call <8 x i1> @llvm.arm.mve.vctp16(i32 %count)
56 %elts.rem = sub i32 %count, 8
57 %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)
58 %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)
59 %bitcast.a = bitcast <8 x i16> %masked.load.a to <16 x i8>
60 %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)
61 %bitcast = bitcast <16 x i8> %shrn to <8 x i16>
62 call void @llvm.masked.store.v8i16.p0v8i16(<8 x i16> %bitcast, <8 x i16>* %addr.c, i32 2, <8 x i1> %pred)
63 %addr.a.next = getelementptr <8 x i16>, <8 x i16>* %addr.b, i32 1
64 %addr.b.next = getelementptr <8 x i16>, <8 x i16>* %addr.b, i32 1
65 %addr.c.next = getelementptr <8 x i16>, <8 x i16>* %addr.c, i32 1
66 %loop.dec = call i32 @llvm.loop.decrement.reg.i32.i32.i32(i32 %lsr.iv, i32 1)
67 %end = icmp ne i32 %loop.dec, 0
68 %lsr.iv.next = add i32 %lsr.iv, -1
69 br i1 %end, label %loop.body, label %exit
71 exit: ; preds = %loop.body, %entry
75 declare i32 @llvm.start.loop.iterations.i32(i32)
76 declare i32 @llvm.loop.decrement.reg.i32.i32.i32(i32, i32)
77 declare <4 x i1> @llvm.arm.mve.vctp32(i32)
78 declare <4 x i32> @llvm.masked.load.v4i32.p0v4i32(<4 x i32>*, i32 immarg, <4 x i1>, <4 x i32>)
79 declare void @llvm.masked.store.v4i32.p0v4i32(<4 x i32>, <4 x i32>*, i32 immarg, <4 x i1>)
80 declare <8 x i16> @llvm.arm.mve.vshrn.v8i16.v4i32(<8 x i16>, <4 x i32>, i32, i32, i32, i32, i32, i32)
81 declare <8 x i1> @llvm.arm.mve.vctp16(i32)
82 declare <8 x i16> @llvm.masked.load.v8i16.p0v8i16(<8 x i16>*, i32 immarg, <8 x i1>, <8 x i16>)
83 declare void @llvm.masked.store.v8i16.p0v8i16(<8 x i16>, <8 x i16>*, i32 immarg, <8 x i1>)
84 declare <16 x i8> @llvm.arm.mve.vshrn.v16i8.v8i16(<16 x i8>, <8 x i16>, i32, i32, i32, i32, i32, i32)
88 name: test_vqrshruntq_n_s32
90 tracksRegLiveness: true
93 - { reg: '$r0', virtual-reg: '' }
94 - { reg: '$r1', virtual-reg: '' }
95 - { reg: '$r2', virtual-reg: '' }
96 - { reg: '$r3', virtual-reg: '' }
103 - { id: 0, type: default, offset: 0, size: 4, alignment: 8, stack-id: default,
104 isImmutable: true, isAliased: false, callee-saved-register: '', callee-saved-restored: true,
105 debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
107 - { id: 0, name: '', type: spill-slot, offset: -4, size: 4, alignment: 4,
108 stack-id: default, callee-saved-register: '$lr', callee-saved-restored: false,
109 debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
110 - { id: 1, name: '', type: spill-slot, offset: -8, size: 4, alignment: 4,
111 stack-id: default, callee-saved-register: '$r4', callee-saved-restored: true,
112 debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
115 machineFunctionInfo: {}
117 ; CHECK-LABEL: name: test_vqrshruntq_n_s32
119 ; CHECK: successors: %bb.1(0x80000000)
120 ; CHECK: liveins: $lr, $r0, $r1, $r2, $r3, $r4
121 ; CHECK: frame-setup tPUSH 14 /* CC::al */, $noreg, killed $r4, killed $lr, implicit-def $sp, implicit $sp
122 ; CHECK: frame-setup CFI_INSTRUCTION def_cfa_offset 8
123 ; CHECK: frame-setup CFI_INSTRUCTION offset $lr, -4
124 ; CHECK: frame-setup CFI_INSTRUCTION offset $r4, -8
125 ; CHECK: tCMPi8 renamable $r3, 1, 14 /* CC::al */, $noreg, implicit-def $cpsr
126 ; CHECK: t2IT 11, 8, implicit-def $itstate
127 ; CHECK: tPOP_RET 11 /* CC::lt */, killed $cpsr, def $r4, def $pc, implicit killed $itstate
128 ; CHECK: bb.1.loop.ph:
129 ; CHECK: successors: %bb.2(0x80000000)
130 ; CHECK: liveins: $r0, $r1, $r2, $r3
131 ; CHECK: renamable $r4 = tLDRspi $sp, 2, 14 /* CC::al */, $noreg :: (load (s32) from %fixed-stack.0, align 8)
132 ; CHECK: dead $lr = MVE_DLSTP_32 killed renamable $r3
133 ; CHECK: $r12 = tMOVr killed $r4, 14 /* CC::al */, $noreg
134 ; CHECK: bb.2.loop.body:
135 ; CHECK: successors: %bb.2(0x7c000000), %bb.3(0x04000000)
136 ; CHECK: liveins: $r0, $r1, $r2, $r12
137 ; CHECK: $lr = tMOVr $r12, 14 /* CC::al */, $noreg
138 ; CHECK: renamable $r12 = t2SUBri killed $r12, 1, 14 /* CC::al */, $noreg, $noreg
139 ; CHECK: renamable $r1, renamable $q0 = MVE_VLDRWU32_post killed renamable $r1, 16, 0, $noreg :: (load (s128) from %ir.addr.b, align 4)
140 ; CHECK: renamable $r0, renamable $q1 = MVE_VLDRWU32_post killed renamable $r0, 16, 0, $noreg :: (load (s128) from %ir.addr.a, align 4)
141 ; CHECK: renamable $q1 = MVE_VQSHRUNs32th killed renamable $q1, killed renamable $q0, 3, 0, $noreg
142 ; CHECK: renamable $r2 = MVE_VSTRWU32_post killed renamable $q1, killed renamable $r2, 16, 0, killed $noreg :: (store (s128) into %ir.addr.c, align 4)
143 ; CHECK: dead $lr = MVE_LETP killed renamable $lr, %bb.2
145 ; CHECK: tPOP_RET 14 /* CC::al */, $noreg, def $r4, def $pc
147 successors: %bb.1(0x80000000)
148 liveins: $r0, $r1, $r2, $r3, $r4, $lr
150 frame-setup tPUSH 14 /* CC::al */, $noreg, killed $r4, killed $lr, implicit-def $sp, implicit $sp
151 frame-setup CFI_INSTRUCTION def_cfa_offset 8
152 frame-setup CFI_INSTRUCTION offset $lr, -4
153 frame-setup CFI_INSTRUCTION offset $r4, -8
154 tCMPi8 renamable $r3, 1, 14 /* CC::al */, $noreg, implicit-def $cpsr
155 t2IT 11, 8, implicit-def $itstate
156 tPOP_RET 11 /* CC::lt */, killed $cpsr, def $r4, def $pc, implicit killed $itstate
159 successors: %bb.2(0x80000000)
160 liveins: $r0, $r1, $r2, $r3, $r4, $lr
162 renamable $r4 = tLDRspi $sp, 2, 14 /* CC::al */, $noreg :: (load (s32) from %fixed-stack.0, align 8)
163 $lr = t2DoLoopStart renamable $r4
164 $r12 = tMOVr killed $r4, 14 /* CC::al */, $noreg
167 successors: %bb.2(0x7c000000), %bb.3(0x04000000)
168 liveins: $r0, $r1, $r2, $r3, $r12
170 renamable $vpr = MVE_VCTP32 renamable $r3, 0, $noreg
171 $lr = tMOVr $r12, 14 /* CC::al */, $noreg
172 renamable $r12 = t2SUBri killed $r12, 1, 14 /* CC::al */, $noreg, $noreg
173 renamable $r3, dead $cpsr = tSUBi8 killed renamable $r3, 4, 14 /* CC::al */, $noreg
174 MVE_VPST 4, implicit $vpr
175 renamable $r1, renamable $q0 = MVE_VLDRWU32_post killed renamable $r1, 16, 1, renamable $vpr :: (load (s128) from %ir.addr.b, align 4)
176 renamable $r0, renamable $q1 = MVE_VLDRWU32_post killed renamable $r0, 16, 1, renamable $vpr :: (load (s128) from %ir.addr.a, align 4)
177 renamable $lr = t2LoopDec killed renamable $lr, 1
178 renamable $q1 = MVE_VQSHRUNs32th killed renamable $q1, killed renamable $q0, 3, 0, $noreg
179 MVE_VPST 8, implicit $vpr
180 renamable $r2 = MVE_VSTRWU32_post killed renamable $q1, killed renamable $r2, 16, 1, killed renamable $vpr :: (store (s128) into %ir.addr.c, align 4)
181 t2LoopEnd killed renamable $lr, %bb.2, implicit-def dead $cpsr
182 tB %bb.3, 14 /* CC::al */, $noreg
185 tPOP_RET 14 /* CC::al */, $noreg, def $r4, def $pc
189 name: test_vqrshruntq_n_s16
191 tracksRegLiveness: true
194 - { reg: '$r0', virtual-reg: '' }
195 - { reg: '$r1', virtual-reg: '' }
196 - { reg: '$r2', virtual-reg: '' }
197 - { reg: '$r3', virtual-reg: '' }
203 - { id: 0, type: default, offset: 0, size: 4, alignment: 8, stack-id: default,
204 isImmutable: true, isAliased: false, callee-saved-register: '', callee-saved-restored: true,
205 debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
207 - { id: 0, name: '', type: spill-slot, offset: -4, size: 4, alignment: 4,
208 stack-id: default, callee-saved-register: '$lr', callee-saved-restored: false,
209 debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
210 - { id: 1, name: '', type: spill-slot, offset: -8, size: 4, alignment: 4,
211 stack-id: default, callee-saved-register: '$r4', callee-saved-restored: true,
212 debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
215 machineFunctionInfo: {}
217 ; CHECK-LABEL: name: test_vqrshruntq_n_s16
219 ; CHECK: successors: %bb.1(0x80000000)
220 ; CHECK: liveins: $lr, $r0, $r1, $r2, $r3, $r4
221 ; CHECK: frame-setup tPUSH 14 /* CC::al */, $noreg, killed $r4, killed $lr, implicit-def $sp, implicit $sp
222 ; CHECK: frame-setup CFI_INSTRUCTION def_cfa_offset 8
223 ; CHECK: frame-setup CFI_INSTRUCTION offset $lr, -4
224 ; CHECK: frame-setup CFI_INSTRUCTION offset $r4, -8
225 ; CHECK: tCMPi8 renamable $r3, 1, 14 /* CC::al */, $noreg, implicit-def $cpsr
226 ; CHECK: t2IT 11, 8, implicit-def $itstate
227 ; CHECK: tPOP_RET 11 /* CC::lt */, killed $cpsr, def $r4, def $pc, implicit killed $itstate
228 ; CHECK: bb.1.loop.ph:
229 ; CHECK: successors: %bb.2(0x80000000)
230 ; CHECK: liveins: $r0, $r1, $r2, $r3
231 ; CHECK: renamable $r12 = t2LDRi12 $sp, 8, 14 /* CC::al */, $noreg :: (load (s32) from %fixed-stack.0, align 8)
232 ; CHECK: dead $lr = MVE_DLSTP_16 killed renamable $r3
233 ; CHECK: $r4 = tMOVr killed $r12, 14 /* CC::al */, $noreg
234 ; CHECK: bb.2.loop.body:
235 ; CHECK: successors: %bb.2(0x7c000000), %bb.3(0x04000000)
236 ; CHECK: liveins: $r0, $r1, $r2, $r4
237 ; CHECK: $lr = tMOVr $r4, 14 /* CC::al */, $noreg
238 ; CHECK: renamable $r4, dead $cpsr = tSUBi8 killed $r4, 1, 14 /* CC::al */, $noreg
239 ; CHECK: renamable $r1, renamable $q0 = MVE_VLDRHU16_post killed renamable $r1, 16, 0, $noreg :: (load (s128) from %ir.addr.b, align 2)
240 ; CHECK: renamable $q1 = MVE_VLDRHU16 killed renamable $r0, 0, 0, $noreg :: (load (s128) from %ir.addr.a, align 2)
241 ; CHECK: $r0 = tMOVr $r1, 14 /* CC::al */, $noreg
242 ; CHECK: renamable $q1 = MVE_VQSHRUNs16th killed renamable $q1, killed renamable $q0, 1, 0, $noreg
243 ; CHECK: renamable $r2 = MVE_VSTRHU16_post killed renamable $q1, killed renamable $r2, 16, 0, killed $noreg :: (store (s128) into %ir.addr.c, align 2)
244 ; CHECK: dead $lr = MVE_LETP killed renamable $lr, %bb.2
246 ; CHECK: tPOP_RET 14 /* CC::al */, $noreg, def $r4, def $pc
248 successors: %bb.1(0x80000000)
249 liveins: $r0, $r1, $r2, $r3, $r4, $lr
251 frame-setup tPUSH 14 /* CC::al */, $noreg, killed $r4, killed $lr, implicit-def $sp, implicit $sp
252 frame-setup CFI_INSTRUCTION def_cfa_offset 8
253 frame-setup CFI_INSTRUCTION offset $lr, -4
254 frame-setup CFI_INSTRUCTION offset $r4, -8
255 tCMPi8 renamable $r3, 1, 14 /* CC::al */, $noreg, implicit-def $cpsr
256 t2IT 11, 8, implicit-def $itstate
257 tPOP_RET 11 /* CC::lt */, killed $cpsr, def $r4, def $pc, implicit killed $itstate
260 successors: %bb.2(0x80000000)
261 liveins: $r0, $r1, $r2, $r3, $r4, $lr
263 renamable $r12 = t2LDRi12 $sp, 8, 14 /* CC::al */, $noreg :: (load (s32) from %fixed-stack.0, align 8)
264 $lr = t2DoLoopStart renamable $r12
265 $r4 = tMOVr killed $r12, 14 /* CC::al */, $noreg
268 successors: %bb.2(0x7c000000), %bb.3(0x04000000)
269 liveins: $r0, $r1, $r2, $r3, $r4
271 renamable $vpr = MVE_VCTP16 renamable $r3, 0, $noreg
272 $lr = tMOVr $r4, 14 /* CC::al */, $noreg
273 renamable $r4, dead $cpsr = tSUBi8 killed $r4, 1, 14 /* CC::al */, $noreg
274 renamable $r3, dead $cpsr = tSUBi8 killed renamable $r3, 8, 14 /* CC::al */, $noreg
275 MVE_VPST 4, implicit $vpr
276 renamable $r1, renamable $q0 = MVE_VLDRHU16_post killed renamable $r1, 16, 1, renamable $vpr :: (load (s128) from %ir.addr.b, align 2)
277 renamable $q1 = MVE_VLDRHU16 killed renamable $r0, 0, 1, renamable $vpr :: (load (s128) from %ir.addr.a, align 2)
278 renamable $lr = t2LoopDec killed renamable $lr, 1
279 $r0 = tMOVr $r1, 14 /* CC::al */, $noreg
280 renamable $q1 = MVE_VQSHRUNs16th killed renamable $q1, killed renamable $q0, 1, 0, $noreg
281 MVE_VPST 8, implicit $vpr
282 renamable $r2 = MVE_VSTRHU16_post killed renamable $q1, killed renamable $r2, 16, 1, killed renamable $vpr :: (store (s128) into %ir.addr.c, align 2)
283 t2LoopEnd killed renamable $lr, %bb.2, implicit-def dead $cpsr
284 tB %bb.3, 14 /* CC::al */, $noreg
287 tPOP_RET 14 /* CC::al */, $noreg, def $r4, def $pc