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(ptr %a, ptr %b, ptr %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 ptr [ %a, %loop.ph ], [ %addr.a.next, %loop.body ]
18 %addr.b = phi ptr [ %b, %loop.ph ], [ %addr.b.next, %loop.body ]
19 %addr.c = phi ptr [ %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.p0(ptr %addr.a, i32 4, <4 x i1> %pred, <4 x i32> undef)
23 %masked.load.b = call <4 x i32> @llvm.masked.load.v4i32.p0(ptr %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.p0(<4 x i32> %bitcast, ptr %addr.c, i32 4, <4 x i1> %pred)
28 %addr.a.next = getelementptr <4 x i32>, ptr %addr.a, i32 1
29 %addr.b.next = getelementptr <4 x i32>, ptr %addr.b, i32 1
30 %addr.c.next = getelementptr <4 x i32>, ptr %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(ptr %a, ptr %b, ptr %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 ptr [ %a, %loop.ph ], [ %addr.a.next, %loop.body ]
53 %addr.b = phi ptr [ %b, %loop.ph ], [ %addr.b.next, %loop.body ]
54 %addr.c = phi ptr [ %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.p0(ptr %addr.a, i32 2, <8 x i1> %pred, <8 x i16> undef)
58 %masked.load.b = call <8 x i16> @llvm.masked.load.v8i16.p0(ptr %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.p0(<8 x i16> %bitcast, ptr %addr.c, i32 2, <8 x i1> %pred)
63 %addr.a.next = getelementptr <8 x i16>, ptr %addr.b, i32 1
64 %addr.b.next = getelementptr <8 x i16>, ptr %addr.b, i32 1
65 %addr.c.next = getelementptr <8 x i16>, ptr %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.p0(ptr, i32 immarg, <4 x i1>, <4 x i32>)
79 declare void @llvm.masked.store.v4i32.p0(<4 x i32>, ptr, 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.p0(ptr, i32 immarg, <8 x i1>, <8 x i16>)
83 declare void @llvm.masked.store.v8i16.p0(<8 x i16>, ptr, 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-NEXT: successors: %bb.1(0x80000000)
120 ; CHECK-NEXT: liveins: $lr, $r0, $r1, $r2, $r3, $r4
122 ; CHECK-NEXT: frame-setup tPUSH 14 /* CC::al */, $noreg, killed $r4, killed $lr, implicit-def $sp, implicit $sp
123 ; CHECK-NEXT: frame-setup CFI_INSTRUCTION def_cfa_offset 8
124 ; CHECK-NEXT: frame-setup CFI_INSTRUCTION offset $lr, -4
125 ; CHECK-NEXT: frame-setup CFI_INSTRUCTION offset $r4, -8
126 ; CHECK-NEXT: tCMPi8 renamable $r3, 1, 14 /* CC::al */, $noreg, implicit-def $cpsr
127 ; CHECK-NEXT: t2IT 11, 8, implicit-def $itstate
128 ; CHECK-NEXT: tPOP_RET 11 /* CC::lt */, killed $cpsr, def $r4, def $pc, implicit killed $itstate
130 ; CHECK-NEXT: bb.1.loop.ph:
131 ; CHECK-NEXT: successors: %bb.2(0x80000000)
132 ; CHECK-NEXT: liveins: $r0, $r1, $r2, $r3
134 ; CHECK-NEXT: renamable $r4 = tLDRspi $sp, 2, 14 /* CC::al */, $noreg :: (load (s32) from %fixed-stack.0, align 8)
135 ; CHECK-NEXT: dead $lr = MVE_DLSTP_32 killed renamable $r3
136 ; CHECK-NEXT: $r12 = tMOVr killed $r4, 14 /* CC::al */, $noreg
138 ; CHECK-NEXT: bb.2.loop.body:
139 ; CHECK-NEXT: successors: %bb.2(0x7c000000), %bb.3(0x04000000)
140 ; CHECK-NEXT: liveins: $r0, $r1, $r2, $r12
142 ; CHECK-NEXT: $lr = tMOVr $r12, 14 /* CC::al */, $noreg
143 ; CHECK-NEXT: renamable $r12 = t2SUBri killed $r12, 1, 14 /* CC::al */, $noreg, $noreg
144 ; CHECK-NEXT: renamable $r1, renamable $q0 = MVE_VLDRWU32_post killed renamable $r1, 16, 0, $noreg, $noreg :: (load (s128) from %ir.addr.b, align 4)
145 ; CHECK-NEXT: renamable $r0, renamable $q1 = MVE_VLDRWU32_post killed renamable $r0, 16, 0, $noreg, $noreg :: (load (s128) from %ir.addr.a, align 4)
146 ; CHECK-NEXT: renamable $q1 = MVE_VQSHRUNs32th killed renamable $q1, killed renamable $q0, 3, 0, $noreg, $noreg
147 ; CHECK-NEXT: renamable $r2 = MVE_VSTRWU32_post killed renamable $q1, killed renamable $r2, 16, 0, killed $noreg, $noreg :: (store (s128) into %ir.addr.c, align 4)
148 ; CHECK-NEXT: dead $lr = MVE_LETP killed renamable $lr, %bb.2
150 ; CHECK-NEXT: bb.3.exit:
151 ; CHECK-NEXT: tPOP_RET 14 /* CC::al */, $noreg, def $r4, def $pc
153 successors: %bb.1(0x80000000)
154 liveins: $r0, $r1, $r2, $r3, $r4, $lr
156 frame-setup tPUSH 14 /* CC::al */, $noreg, killed $r4, killed $lr, implicit-def $sp, implicit $sp
157 frame-setup CFI_INSTRUCTION def_cfa_offset 8
158 frame-setup CFI_INSTRUCTION offset $lr, -4
159 frame-setup CFI_INSTRUCTION offset $r4, -8
160 tCMPi8 renamable $r3, 1, 14 /* CC::al */, $noreg, implicit-def $cpsr
161 t2IT 11, 8, implicit-def $itstate
162 tPOP_RET 11 /* CC::lt */, killed $cpsr, def $r4, def $pc, implicit killed $itstate
165 successors: %bb.2(0x80000000)
166 liveins: $r0, $r1, $r2, $r3, $r4, $lr
168 renamable $r4 = tLDRspi $sp, 2, 14 /* CC::al */, $noreg :: (load (s32) from %fixed-stack.0, align 8)
169 $lr = t2DoLoopStart renamable $r4
170 $r12 = tMOVr killed $r4, 14 /* CC::al */, $noreg
173 successors: %bb.2(0x7c000000), %bb.3(0x04000000)
174 liveins: $r0, $r1, $r2, $r3, $r12
176 renamable $vpr = MVE_VCTP32 renamable $r3, 0, $noreg, $noreg
177 $lr = tMOVr $r12, 14 /* CC::al */, $noreg
178 renamable $r12 = t2SUBri killed $r12, 1, 14 /* CC::al */, $noreg, $noreg
179 renamable $r3, dead $cpsr = tSUBi8 killed renamable $r3, 4, 14 /* CC::al */, $noreg
180 MVE_VPST 4, implicit $vpr
181 renamable $r1, renamable $q0 = MVE_VLDRWU32_post killed renamable $r1, 16, 1, renamable $vpr, $noreg :: (load (s128) from %ir.addr.b, align 4)
182 renamable $r0, renamable $q1 = MVE_VLDRWU32_post killed renamable $r0, 16, 1, renamable $vpr, $noreg :: (load (s128) from %ir.addr.a, align 4)
183 renamable $lr = t2LoopDec killed renamable $lr, 1
184 renamable $q1 = MVE_VQSHRUNs32th killed renamable $q1, killed renamable $q0, 3, 0, $noreg, $noreg
185 MVE_VPST 8, implicit $vpr
186 renamable $r2 = MVE_VSTRWU32_post killed renamable $q1, killed renamable $r2, 16, 1, killed renamable $vpr, $noreg :: (store (s128) into %ir.addr.c, align 4)
187 t2LoopEnd killed renamable $lr, %bb.2, implicit-def dead $cpsr
188 tB %bb.3, 14 /* CC::al */, $noreg
191 tPOP_RET 14 /* CC::al */, $noreg, def $r4, def $pc
195 name: test_vqrshruntq_n_s16
197 tracksRegLiveness: true
200 - { reg: '$r0', virtual-reg: '' }
201 - { reg: '$r1', virtual-reg: '' }
202 - { reg: '$r2', virtual-reg: '' }
203 - { reg: '$r3', virtual-reg: '' }
209 - { id: 0, type: default, offset: 0, size: 4, alignment: 8, stack-id: default,
210 isImmutable: true, isAliased: false, callee-saved-register: '', callee-saved-restored: true,
211 debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
213 - { id: 0, name: '', type: spill-slot, offset: -4, size: 4, alignment: 4,
214 stack-id: default, callee-saved-register: '$lr', callee-saved-restored: false,
215 debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
216 - { id: 1, name: '', type: spill-slot, offset: -8, size: 4, alignment: 4,
217 stack-id: default, callee-saved-register: '$r4', callee-saved-restored: true,
218 debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
221 machineFunctionInfo: {}
223 ; CHECK-LABEL: name: test_vqrshruntq_n_s16
225 ; CHECK-NEXT: successors: %bb.1(0x80000000)
226 ; CHECK-NEXT: liveins: $lr, $r0, $r1, $r2, $r3, $r4
228 ; CHECK-NEXT: frame-setup tPUSH 14 /* CC::al */, $noreg, killed $r4, killed $lr, implicit-def $sp, implicit $sp
229 ; CHECK-NEXT: frame-setup CFI_INSTRUCTION def_cfa_offset 8
230 ; CHECK-NEXT: frame-setup CFI_INSTRUCTION offset $lr, -4
231 ; CHECK-NEXT: frame-setup CFI_INSTRUCTION offset $r4, -8
232 ; CHECK-NEXT: tCMPi8 renamable $r3, 1, 14 /* CC::al */, $noreg, implicit-def $cpsr
233 ; CHECK-NEXT: t2IT 11, 8, implicit-def $itstate
234 ; CHECK-NEXT: tPOP_RET 11 /* CC::lt */, killed $cpsr, def $r4, def $pc, implicit killed $itstate
236 ; CHECK-NEXT: bb.1.loop.ph:
237 ; CHECK-NEXT: successors: %bb.2(0x80000000)
238 ; CHECK-NEXT: liveins: $r0, $r1, $r2, $r3
240 ; CHECK-NEXT: renamable $r12 = t2LDRi12 $sp, 8, 14 /* CC::al */, $noreg :: (load (s32) from %fixed-stack.0, align 8)
241 ; CHECK-NEXT: dead $lr = MVE_DLSTP_16 killed renamable $r3
242 ; CHECK-NEXT: $r4 = tMOVr killed $r12, 14 /* CC::al */, $noreg
244 ; CHECK-NEXT: bb.2.loop.body:
245 ; CHECK-NEXT: successors: %bb.2(0x7c000000), %bb.3(0x04000000)
246 ; CHECK-NEXT: liveins: $r0, $r1, $r2, $r4
248 ; CHECK-NEXT: $lr = tMOVr $r4, 14 /* CC::al */, $noreg
249 ; CHECK-NEXT: renamable $r4, dead $cpsr = tSUBi8 killed $r4, 1, 14 /* CC::al */, $noreg
250 ; CHECK-NEXT: renamable $r1, renamable $q0 = MVE_VLDRHU16_post killed renamable $r1, 16, 0, $noreg, $noreg :: (load (s128) from %ir.addr.b, align 2)
251 ; CHECK-NEXT: renamable $q1 = MVE_VLDRHU16 killed renamable $r0, 0, 0, $noreg, $noreg :: (load (s128) from %ir.addr.a, align 2)
252 ; CHECK-NEXT: $r0 = tMOVr $r1, 14 /* CC::al */, $noreg
253 ; CHECK-NEXT: renamable $q1 = MVE_VQSHRUNs16th killed renamable $q1, killed renamable $q0, 1, 0, $noreg, $noreg
254 ; CHECK-NEXT: renamable $r2 = MVE_VSTRHU16_post killed renamable $q1, killed renamable $r2, 16, 0, killed $noreg, $noreg :: (store (s128) into %ir.addr.c, align 2)
255 ; CHECK-NEXT: dead $lr = MVE_LETP killed renamable $lr, %bb.2
257 ; CHECK-NEXT: bb.3.exit:
258 ; CHECK-NEXT: tPOP_RET 14 /* CC::al */, $noreg, def $r4, def $pc
260 successors: %bb.1(0x80000000)
261 liveins: $r0, $r1, $r2, $r3, $r4, $lr
263 frame-setup tPUSH 14 /* CC::al */, $noreg, killed $r4, killed $lr, implicit-def $sp, implicit $sp
264 frame-setup CFI_INSTRUCTION def_cfa_offset 8
265 frame-setup CFI_INSTRUCTION offset $lr, -4
266 frame-setup CFI_INSTRUCTION offset $r4, -8
267 tCMPi8 renamable $r3, 1, 14 /* CC::al */, $noreg, implicit-def $cpsr
268 t2IT 11, 8, implicit-def $itstate
269 tPOP_RET 11 /* CC::lt */, killed $cpsr, def $r4, def $pc, implicit killed $itstate
272 successors: %bb.2(0x80000000)
273 liveins: $r0, $r1, $r2, $r3, $r4, $lr
275 renamable $r12 = t2LDRi12 $sp, 8, 14 /* CC::al */, $noreg :: (load (s32) from %fixed-stack.0, align 8)
276 $lr = t2DoLoopStart renamable $r12
277 $r4 = tMOVr killed $r12, 14 /* CC::al */, $noreg
280 successors: %bb.2(0x7c000000), %bb.3(0x04000000)
281 liveins: $r0, $r1, $r2, $r3, $r4
283 renamable $vpr = MVE_VCTP16 renamable $r3, 0, $noreg, $noreg
284 $lr = tMOVr $r4, 14 /* CC::al */, $noreg
285 renamable $r4, dead $cpsr = tSUBi8 killed $r4, 1, 14 /* CC::al */, $noreg
286 renamable $r3, dead $cpsr = tSUBi8 killed renamable $r3, 8, 14 /* CC::al */, $noreg
287 MVE_VPST 4, implicit $vpr
288 renamable $r1, renamable $q0 = MVE_VLDRHU16_post killed renamable $r1, 16, 1, renamable $vpr, $noreg :: (load (s128) from %ir.addr.b, align 2)
289 renamable $q1 = MVE_VLDRHU16 killed renamable $r0, 0, 1, renamable $vpr, $noreg :: (load (s128) from %ir.addr.a, align 2)
290 renamable $lr = t2LoopDec killed renamable $lr, 1
291 $r0 = tMOVr $r1, 14 /* CC::al */, $noreg
292 renamable $q1 = MVE_VQSHRUNs16th killed renamable $q1, killed renamable $q0, 1, 0, $noreg, $noreg
293 MVE_VPST 8, implicit $vpr
294 renamable $r2 = MVE_VSTRHU16_post killed renamable $q1, killed renamable $r2, 16, 1, killed renamable $vpr, $noreg :: (store (s128) into %ir.addr.c, align 2)
295 t2LoopEnd killed renamable $lr, %bb.2, implicit-def dead $cpsr
296 tB %bb.3, 14 /* CC::al */, $noreg
299 tPOP_RET 14 /* CC::al */, $noreg, def $r4, def $pc