|
| 1 | +# RUN: llc -mtriple=thumbv8.1m.main -mattr=+mve -run-pass=arm-low-overhead-loops %s -o - | FileCheck %s |
| 2 | + |
| 3 | +# CHECK-NOT: LETP |
| 4 | + |
| 5 | +--- | |
| 6 | + define arm_aapcs_vfpcc void @test_ctlz_i8(<8 x i16>* %a, <8 x i16>* %b, <8 x i16>* %c, i32 %elts, i32 %iters) #0 { |
| 7 | + entry: |
| 8 | + %cmp = icmp slt i32 %elts, 1 |
| 9 | + br i1 %cmp, label %exit, label %loop.ph |
| 10 | + |
| 11 | + loop.ph: ; preds = %entry |
| 12 | + call void @llvm.set.loop.iterations.i32(i32 %iters) |
| 13 | + br label %loop.body |
| 14 | + |
| 15 | + loop.body: ; preds = %loop.body, %loop.ph |
| 16 | + %lsr.iv = phi i32 [ %lsr.iv.next, %loop.body ], [ %iters, %loop.ph ] |
| 17 | + %count = phi i32 [ %elts, %loop.ph ], [ %elts.rem, %loop.body ] |
| 18 | + %addr.a = phi <8 x i16>* [ %a, %loop.ph ], [ %addr.a.next, %loop.body ] |
| 19 | + %addr.b = phi <8 x i16>* [ %b, %loop.ph ], [ %addr.b.next, %loop.body ] |
| 20 | + %addr.c = phi <8 x i16>* [ %c, %loop.ph ], [ %addr.c.next, %loop.body ] |
| 21 | + %pred = call <8 x i1> @llvm.arm.mve.vctp16(i32 %count) |
| 22 | + %elts.rem = sub i32 %count, 8 |
| 23 | + %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) |
| 24 | + %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) |
| 25 | + %bitcast.a = bitcast <8 x i16> %masked.load.a to <16 x i8> |
| 26 | + %ctlz = call <16 x i8> @llvm.ctlz.v16i8(<16 x i8> %bitcast.a, i1 false) |
| 27 | + %shrn = call <16 x i8> @llvm.arm.mve.vshrn.v16i8.v8i16(<16 x i8> %ctlz, <8 x i16> %masked.load.b, i32 1, i32 1, i32 0, i32 1, i32 0, i32 1) |
| 28 | + %bitcast = bitcast <16 x i8> %shrn to <8 x i16> |
| 29 | + call void @llvm.masked.store.v8i16.p0v8i16(<8 x i16> %bitcast, <8 x i16>* %addr.c, i32 2, <8 x i1> %pred) |
| 30 | + %addr.a.next = getelementptr <8 x i16>, <8 x i16>* %addr.b, i32 1 |
| 31 | + %addr.b.next = getelementptr <8 x i16>, <8 x i16>* %addr.b, i32 1 |
| 32 | + %addr.c.next = getelementptr <8 x i16>, <8 x i16>* %addr.c, i32 1 |
| 33 | + %loop.dec = call i32 @llvm.loop.decrement.reg.i32.i32.i32(i32 %lsr.iv, i32 1) |
| 34 | + %end = icmp ne i32 %loop.dec, 0 |
| 35 | + %lsr.iv.next = add i32 %lsr.iv, -1 |
| 36 | + br i1 %end, label %loop.body, label %exit |
| 37 | + |
| 38 | + exit: ; preds = %loop.body, %entry |
| 39 | + ret void |
| 40 | + } |
| 41 | + |
| 42 | + define arm_aapcs_vfpcc void @test_ctlz_i16(<4 x i32>* %a, <4 x i32>* %b, <4 x i32>* %c, i32 %elts, i32 %iters) #0 { |
| 43 | + entry: |
| 44 | + %cmp = icmp slt i32 %elts, 1 |
| 45 | + br i1 %cmp, label %exit, label %loop.ph |
| 46 | + |
| 47 | + loop.ph: ; preds = %entry |
| 48 | + call void @llvm.set.loop.iterations.i32(i32 %iters) |
| 49 | + br label %loop.body |
| 50 | + |
| 51 | + loop.body: ; preds = %loop.body, %loop.ph |
| 52 | + %lsr.iv = phi i32 [ %lsr.iv.next, %loop.body ], [ %iters, %loop.ph ] |
| 53 | + %count = phi i32 [ %elts, %loop.ph ], [ %elts.rem, %loop.body ] |
| 54 | + %addr.a = phi <4 x i32>* [ %a, %loop.ph ], [ %addr.a.next, %loop.body ] |
| 55 | + %addr.b = phi <4 x i32>* [ %b, %loop.ph ], [ %addr.b.next, %loop.body ] |
| 56 | + %addr.c = phi <4 x i32>* [ %c, %loop.ph ], [ %addr.c.next, %loop.body ] |
| 57 | + %pred = call <4 x i1> @llvm.arm.mve.vctp32(i32 %count) |
| 58 | + %elts.rem = sub i32 %count, 4 |
| 59 | + %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) |
| 60 | + %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) |
| 61 | + %bitcast.a = bitcast <4 x i32> %masked.load.a to <8 x i16> |
| 62 | + %ctlz = call <8 x i16> @llvm.ctlz.v8i16(<8 x i16> %bitcast.a, i1 false) |
| 63 | + %shrn = call <8 x i16> @llvm.arm.mve.vshrn.v8i16.v4i32(<8 x i16> %ctlz, <4 x i32> %masked.load.b, i32 3, i32 1, i32 0, i32 1, i32 0, i32 1) |
| 64 | + %bitcast = bitcast <8 x i16> %shrn to <4 x i32> |
| 65 | + call void @llvm.masked.store.v4i32.p0v4i32(<4 x i32> %bitcast, <4 x i32>* %addr.c, i32 4, <4 x i1> %pred) |
| 66 | + %addr.a.next = getelementptr <4 x i32>, <4 x i32>* %addr.a, i32 1 |
| 67 | + %addr.b.next = getelementptr <4 x i32>, <4 x i32>* %addr.b, i32 1 |
| 68 | + %addr.c.next = getelementptr <4 x i32>, <4 x i32>* %addr.c, i32 1 |
| 69 | + %loop.dec = call i32 @llvm.loop.decrement.reg.i32.i32.i32(i32 %lsr.iv, i32 1) |
| 70 | + %end = icmp ne i32 %loop.dec, 0 |
| 71 | + %lsr.iv.next = add i32 %lsr.iv, -1 |
| 72 | + br i1 %end, label %loop.body, label %exit |
| 73 | + |
| 74 | + exit: ; preds = %loop.body, %entry |
| 75 | + ret void |
| 76 | + } |
| 77 | + |
| 78 | + define arm_aapcs_vfpcc void @test_ctlz_i32(<4 x i32>* %a, <4 x i32>* %b, <4 x i32>* %c, i32 %elts, i32 %iters) #0 { |
| 79 | + entry: |
| 80 | + %cmp = icmp slt i32 %elts, 1 |
| 81 | + br i1 %cmp, label %exit, label %loop.ph |
| 82 | + |
| 83 | + loop.ph: ; preds = %entry |
| 84 | + call void @llvm.set.loop.iterations.i32(i32 %iters) |
| 85 | + br label %loop.body |
| 86 | + |
| 87 | + loop.body: ; preds = %loop.body, %loop.ph |
| 88 | + %lsr.iv = phi i32 [ %lsr.iv.next, %loop.body ], [ %iters, %loop.ph ] |
| 89 | + %count = phi i32 [ %elts, %loop.ph ], [ %elts.rem, %loop.body ] |
| 90 | + %addr.a = phi <4 x i32>* [ %a, %loop.ph ], [ %addr.a.next, %loop.body ] |
| 91 | + %addr.b = phi <4 x i32>* [ %b, %loop.ph ], [ %addr.b.next, %loop.body ] |
| 92 | + %addr.c = phi <4 x i32>* [ %c, %loop.ph ], [ %addr.c.next, %loop.body ] |
| 93 | + %pred = call <4 x i1> @llvm.arm.mve.vctp32(i32 %count) |
| 94 | + %elts.rem = sub i32 %count, 4 |
| 95 | + %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) |
| 96 | + %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) |
| 97 | + %ctlz = call <4 x i32> @llvm.ctlz.v4i32(<4 x i32> %masked.load.b, i1 false) |
| 98 | + %bitcast.a = bitcast <4 x i32> %masked.load.a to <8 x i16> |
| 99 | + %shrn = call <8 x i16> @llvm.arm.mve.vshrn.v8i16.v4i32(<8 x i16> %bitcast.a, <4 x i32> %ctlz, i32 3, i32 1, i32 0, i32 1, i32 0, i32 1) |
| 100 | + %bitcast = bitcast <8 x i16> %shrn to <4 x i32> |
| 101 | + call void @llvm.masked.store.v4i32.p0v4i32(<4 x i32> %bitcast, <4 x i32>* %addr.c, i32 4, <4 x i1> %pred) |
| 102 | + %addr.a.next = getelementptr <4 x i32>, <4 x i32>* %addr.a, i32 1 |
| 103 | + %addr.b.next = getelementptr <4 x i32>, <4 x i32>* %addr.b, i32 1 |
| 104 | + %addr.c.next = getelementptr <4 x i32>, <4 x i32>* %addr.c, i32 1 |
| 105 | + %loop.dec = call i32 @llvm.loop.decrement.reg.i32.i32.i32(i32 %lsr.iv, i32 1) |
| 106 | + %end = icmp ne i32 %loop.dec, 0 |
| 107 | + %lsr.iv.next = add i32 %lsr.iv, -1 |
| 108 | + br i1 %end, label %loop.body, label %exit |
| 109 | + |
| 110 | + exit: ; preds = %loop.body, %entry |
| 111 | + ret void |
| 112 | + } |
| 113 | + |
| 114 | + declare <4 x i32> @llvm.ctlz.v4i32(<4 x i32>, i1 immarg) |
| 115 | + declare <8 x i16> @llvm.ctlz.v8i16(<8 x i16>, i1 immarg) |
| 116 | + declare <16 x i8> @llvm.ctlz.v16i8(<16 x i8>, i1 immarg) |
| 117 | + declare void @llvm.set.loop.iterations.i32(i32) |
| 118 | + declare i32 @llvm.loop.decrement.reg.i32.i32.i32(i32, i32) |
| 119 | + declare <4 x i1> @llvm.arm.mve.vctp32(i32) |
| 120 | + declare <4 x i32> @llvm.masked.load.v4i32.p0v4i32(<4 x i32>*, i32 immarg, <4 x i1>, <4 x i32>) |
| 121 | + declare void @llvm.masked.store.v4i32.p0v4i32(<4 x i32>, <4 x i32>*, i32 immarg, <4 x i1>) |
| 122 | + declare <8 x i16> @llvm.arm.mve.vshrn.v8i16.v4i32(<8 x i16>, <4 x i32>, i32, i32, i32, i32, i32, i32) |
| 123 | + declare <8 x i1> @llvm.arm.mve.vctp16(i32) |
| 124 | + declare <8 x i16> @llvm.masked.load.v8i16.p0v8i16(<8 x i16>*, i32 immarg, <8 x i1>, <8 x i16>) |
| 125 | + declare void @llvm.masked.store.v8i16.p0v8i16(<8 x i16>, <8 x i16>*, i32 immarg, <8 x i1>) |
| 126 | + declare <16 x i8> @llvm.arm.mve.vshrn.v16i8.v8i16(<16 x i8>, <8 x i16>, i32, i32, i32, i32, i32, i32) |
| 127 | + |
| 128 | +... |
| 129 | +--- |
| 130 | +name: test_ctlz_i8 |
| 131 | +alignment: 2 |
| 132 | +tracksRegLiveness: true |
| 133 | +registers: [] |
| 134 | +liveins: |
| 135 | + - { reg: '$r0', virtual-reg: '' } |
| 136 | + - { reg: '$r1', virtual-reg: '' } |
| 137 | + - { reg: '$r2', virtual-reg: '' } |
| 138 | + - { reg: '$r3', virtual-reg: '' } |
| 139 | +frameInfo: |
| 140 | + stackSize: 8 |
| 141 | + offsetAdjustment: 0 |
| 142 | + maxAlignment: 4 |
| 143 | +fixedStack: |
| 144 | + - { id: 0, type: default, offset: 0, size: 4, alignment: 8, stack-id: default, |
| 145 | + isImmutable: true, isAliased: false, callee-saved-register: '', callee-saved-restored: true, |
| 146 | + debug-info-variable: '', debug-info-expression: '', debug-info-___location: '' } |
| 147 | +stack: |
| 148 | + - { id: 0, name: '', type: spill-slot, offset: -4, size: 4, alignment: 4, |
| 149 | + stack-id: default, callee-saved-register: '$lr', callee-saved-restored: false, |
| 150 | + debug-info-variable: '', debug-info-expression: '', debug-info-___location: '' } |
| 151 | + - { id: 1, name: '', type: spill-slot, offset: -8, size: 4, alignment: 4, |
| 152 | + stack-id: default, callee-saved-register: '$r4', callee-saved-restored: true, |
| 153 | + debug-info-variable: '', debug-info-expression: '', debug-info-___location: '' } |
| 154 | +callSites: [] |
| 155 | +constants: [] |
| 156 | +machineFunctionInfo: {} |
| 157 | +body: | |
| 158 | + bb.0.entry: |
| 159 | + successors: %bb.1(0x80000000) |
| 160 | + liveins: $r0, $r1, $r2, $r3, $r4, $lr |
| 161 | + |
| 162 | + frame-setup tPUSH 14 /* CC::al */, $noreg, killed $r4, killed $lr, implicit-def $sp, implicit $sp |
| 163 | + frame-setup CFI_INSTRUCTION def_cfa_offset 8 |
| 164 | + frame-setup CFI_INSTRUCTION offset $lr, -4 |
| 165 | + frame-setup CFI_INSTRUCTION offset $r4, -8 |
| 166 | + tCMPi8 renamable $r3, 1, 14 /* CC::al */, $noreg, implicit-def $cpsr |
| 167 | + t2IT 11, 8, implicit-def $itstate |
| 168 | + tPOP_RET 11 /* CC::lt */, killed $cpsr, def $r4, def $pc, implicit killed $itstate |
| 169 | + renamable $r12 = t2LDRi12 $sp, 8, 14 /* CC::al */, $noreg :: (load 4 from %fixed-stack.0, align 8) |
| 170 | + t2DoLoopStart renamable $r12 |
| 171 | + $r4 = tMOVr killed $r12, 14 /* CC::al */, $noreg |
| 172 | + |
| 173 | + bb.1.loop.body: |
| 174 | + successors: %bb.1(0x7c000000), %bb.2(0x04000000) |
| 175 | + liveins: $r0, $r1, $r2, $r3, $r4 |
| 176 | + |
| 177 | + renamable $vpr = MVE_VCTP16 renamable $r3, 0, $noreg |
| 178 | + MVE_VPST 4, implicit $vpr |
| 179 | + renamable $r1, renamable $q0 = MVE_VLDRHU16_post killed renamable $r1, 16, 1, renamable $vpr :: (load 16 from %ir.addr.b, align 2) |
| 180 | + renamable $q1 = MVE_VLDRHU16 killed renamable $r0, 0, 1, renamable $vpr :: (load 16 from %ir.addr.a, align 2) |
| 181 | + $lr = tMOVr $r4, 14 /* CC::al */, $noreg |
| 182 | + renamable $r4, dead $cpsr = tSUBi8 killed $r4, 1, 14 /* CC::al */, $noreg |
| 183 | + renamable $r3, dead $cpsr = tSUBi8 killed renamable $r3, 8, 14 /* CC::al */, $noreg |
| 184 | + renamable $q1 = MVE_VCLZs8 killed renamable $q1, 0, $noreg, undef renamable $q1 |
| 185 | + renamable $lr = t2LoopDec killed renamable $lr, 1 |
| 186 | + $r0 = tMOVr $r1, 14 /* CC::al */, $noreg |
| 187 | + renamable $q1 = MVE_VQSHRUNs16th killed renamable $q1, killed renamable $q0, 1, 0, $noreg |
| 188 | + MVE_VPST 8, implicit $vpr |
| 189 | + renamable $r2 = MVE_VSTRHU16_post killed renamable $q1, killed renamable $r2, 16, 1, killed renamable $vpr :: (store 16 into %ir.addr.c, align 2) |
| 190 | + t2LoopEnd killed renamable $lr, %bb.1, implicit-def dead $cpsr |
| 191 | + tB %bb.2, 14 /* CC::al */, $noreg |
| 192 | + |
| 193 | + bb.2.exit: |
| 194 | + tPOP_RET 14 /* CC::al */, $noreg, def $r4, def $pc |
| 195 | +
|
| 196 | +... |
| 197 | +--- |
| 198 | +name: test_ctlz_i16 |
| 199 | +alignment: 2 |
| 200 | +tracksRegLiveness: true |
| 201 | +registers: [] |
| 202 | +liveins: |
| 203 | + - { reg: '$r0', virtual-reg: '' } |
| 204 | + - { reg: '$r1', virtual-reg: '' } |
| 205 | + - { reg: '$r2', virtual-reg: '' } |
| 206 | + - { reg: '$r3', virtual-reg: '' } |
| 207 | +frameInfo: |
| 208 | + stackSize: 8 |
| 209 | + offsetAdjustment: 0 |
| 210 | + maxAlignment: 4 |
| 211 | +fixedStack: |
| 212 | + - { id: 0, type: default, offset: 0, size: 4, alignment: 8, stack-id: default, |
| 213 | + isImmutable: true, isAliased: false, callee-saved-register: '', callee-saved-restored: true, |
| 214 | + debug-info-variable: '', debug-info-expression: '', debug-info-___location: '' } |
| 215 | +stack: |
| 216 | + - { id: 0, name: '', type: spill-slot, offset: -4, size: 4, alignment: 4, |
| 217 | + stack-id: default, callee-saved-register: '$lr', callee-saved-restored: false, |
| 218 | + debug-info-variable: '', debug-info-expression: '', debug-info-___location: '' } |
| 219 | + - { id: 1, name: '', type: spill-slot, offset: -8, size: 4, alignment: 4, |
| 220 | + stack-id: default, callee-saved-register: '$r4', callee-saved-restored: true, |
| 221 | + debug-info-variable: '', debug-info-expression: '', debug-info-___location: '' } |
| 222 | +callSites: [] |
| 223 | +constants: [] |
| 224 | +machineFunctionInfo: {} |
| 225 | +body: | |
| 226 | + bb.0.entry: |
| 227 | + successors: %bb.1(0x80000000) |
| 228 | + liveins: $r0, $r1, $r2, $r3, $r4, $lr |
| 229 | + |
| 230 | + frame-setup tPUSH 14 /* CC::al */, $noreg, killed $r4, killed $lr, implicit-def $sp, implicit $sp |
| 231 | + frame-setup CFI_INSTRUCTION def_cfa_offset 8 |
| 232 | + frame-setup CFI_INSTRUCTION offset $lr, -4 |
| 233 | + frame-setup CFI_INSTRUCTION offset $r4, -8 |
| 234 | + tCMPi8 renamable $r3, 1, 14 /* CC::al */, $noreg, implicit-def $cpsr |
| 235 | + t2IT 11, 8, implicit-def $itstate |
| 236 | + tPOP_RET 11 /* CC::lt */, killed $cpsr, def $r4, def $pc, implicit killed $itstate |
| 237 | + renamable $r4 = tLDRspi $sp, 2, 14 /* CC::al */, $noreg :: (load 4 from %fixed-stack.0, align 8) |
| 238 | + t2DoLoopStart renamable $r4 |
| 239 | + $r12 = tMOVr killed $r4, 14 /* CC::al */, $noreg |
| 240 | + |
| 241 | + bb.1.loop.body: |
| 242 | + successors: %bb.1(0x7c000000), %bb.2(0x04000000) |
| 243 | + liveins: $r0, $r1, $r2, $r3, $r12 |
| 244 | + |
| 245 | + renamable $vpr = MVE_VCTP32 renamable $r3, 0, $noreg |
| 246 | + $lr = tMOVr $r12, 14 /* CC::al */, $noreg |
| 247 | + MVE_VPST 4, implicit $vpr |
| 248 | + renamable $r1, renamable $q0 = MVE_VLDRWU32_post killed renamable $r1, 16, 1, renamable $vpr :: (load 16 from %ir.addr.b, align 4) |
| 249 | + renamable $r0, renamable $q1 = MVE_VLDRWU32_post killed renamable $r0, 16, 1, renamable $vpr :: (load 16 from %ir.addr.a, align 4) |
| 250 | + renamable $r12 = t2SUBri killed $r12, 1, 14 /* CC::al */, $noreg, $noreg |
| 251 | + renamable $r3, dead $cpsr = tSUBi8 killed renamable $r3, 4, 14 /* CC::al */, $noreg |
| 252 | + renamable $q1 = MVE_VCLZs16 killed renamable $q1, 0, $noreg, undef renamable $q1 |
| 253 | + renamable $lr = t2LoopDec killed renamable $lr, 1 |
| 254 | + renamable $q1 = MVE_VQSHRUNs32th killed renamable $q1, killed renamable $q0, 3, 0, $noreg |
| 255 | + MVE_VPST 8, implicit $vpr |
| 256 | + renamable $r2 = MVE_VSTRWU32_post killed renamable $q1, killed renamable $r2, 16, 1, killed renamable $vpr :: (store 16 into %ir.addr.c, align 4) |
| 257 | + t2LoopEnd killed renamable $lr, %bb.1, implicit-def dead $cpsr |
| 258 | + tB %bb.2, 14 /* CC::al */, $noreg |
| 259 | + |
| 260 | + bb.2.exit: |
| 261 | + tPOP_RET 14 /* CC::al */, $noreg, def $r4, def $pc |
| 262 | +
|
| 263 | +... |
| 264 | +--- |
| 265 | +name: test_ctlz_i32 |
| 266 | +alignment: 2 |
| 267 | +tracksRegLiveness: true |
| 268 | +registers: [] |
| 269 | +liveins: |
| 270 | + - { reg: '$r0', virtual-reg: '' } |
| 271 | + - { reg: '$r1', virtual-reg: '' } |
| 272 | + - { reg: '$r2', virtual-reg: '' } |
| 273 | + - { reg: '$r3', virtual-reg: '' } |
| 274 | +frameInfo: |
| 275 | + stackSize: 8 |
| 276 | + offsetAdjustment: 0 |
| 277 | + maxAlignment: 4 |
| 278 | +fixedStack: |
| 279 | + - { id: 0, type: default, offset: 0, size: 4, alignment: 8, stack-id: default, |
| 280 | + isImmutable: true, isAliased: false, callee-saved-register: '', callee-saved-restored: true, |
| 281 | + debug-info-variable: '', debug-info-expression: '', debug-info-___location: '' } |
| 282 | +stack: |
| 283 | + - { id: 0, name: '', type: spill-slot, offset: -4, size: 4, alignment: 4, |
| 284 | + stack-id: default, callee-saved-register: '$lr', callee-saved-restored: false, |
| 285 | + debug-info-variable: '', debug-info-expression: '', debug-info-___location: '' } |
| 286 | + - { id: 1, name: '', type: spill-slot, offset: -8, size: 4, alignment: 4, |
| 287 | + stack-id: default, callee-saved-register: '$r4', callee-saved-restored: true, |
| 288 | + debug-info-variable: '', debug-info-expression: '', debug-info-___location: '' } |
| 289 | +callSites: [] |
| 290 | +constants: [] |
| 291 | +machineFunctionInfo: {} |
| 292 | +body: | |
| 293 | + bb.0.entry: |
| 294 | + successors: %bb.1(0x80000000) |
| 295 | + liveins: $r0, $r1, $r2, $r3, $r4, $lr |
| 296 | + |
| 297 | + frame-setup tPUSH 14 /* CC::al */, $noreg, killed $r4, killed $lr, implicit-def $sp, implicit $sp |
| 298 | + frame-setup CFI_INSTRUCTION def_cfa_offset 8 |
| 299 | + frame-setup CFI_INSTRUCTION offset $lr, -4 |
| 300 | + frame-setup CFI_INSTRUCTION offset $r4, -8 |
| 301 | + tCMPi8 renamable $r3, 1, 14 /* CC::al */, $noreg, implicit-def $cpsr |
| 302 | + t2IT 11, 8, implicit-def $itstate |
| 303 | + tPOP_RET 11 /* CC::lt */, killed $cpsr, def $r4, def $pc, implicit killed $itstate |
| 304 | + renamable $r4 = tLDRspi $sp, 2, 14 /* CC::al */, $noreg :: (load 4 from %fixed-stack.0, align 8) |
| 305 | + t2DoLoopStart renamable $r4 |
| 306 | + $r12 = tMOVr killed $r4, 14 /* CC::al */, $noreg |
| 307 | + |
| 308 | + bb.1.loop.body: |
| 309 | + successors: %bb.1(0x7c000000), %bb.2(0x04000000) |
| 310 | + liveins: $r0, $r1, $r2, $r3, $r12 |
| 311 | + |
| 312 | + renamable $vpr = MVE_VCTP32 renamable $r3, 0, $noreg |
| 313 | + $lr = tMOVr $r12, 14 /* CC::al */, $noreg |
| 314 | + MVE_VPST 4, implicit $vpr |
| 315 | + renamable $r0, renamable $q0 = MVE_VLDRWU32_post killed renamable $r0, 16, 1, renamable $vpr :: (load 16 from %ir.addr.a, align 4) |
| 316 | + renamable $r1, renamable $q1 = MVE_VLDRWU32_post killed renamable $r1, 16, 1, renamable $vpr :: (load 16 from %ir.addr.b, align 4) |
| 317 | + renamable $r12 = t2SUBri killed $r12, 1, 14 /* CC::al */, $noreg, $noreg |
| 318 | + renamable $r3, dead $cpsr = tSUBi8 killed renamable $r3, 4, 14 /* CC::al */, $noreg |
| 319 | + renamable $q1 = MVE_VCLZs32 killed renamable $q1, 0, $noreg, undef renamable $q1 |
| 320 | + renamable $lr = t2LoopDec killed renamable $lr, 1 |
| 321 | + renamable $q0 = MVE_VQSHRUNs32th killed renamable $q0, killed renamable $q1, 3, 0, $noreg |
| 322 | + MVE_VPST 8, implicit $vpr |
| 323 | + renamable $r2 = MVE_VSTRWU32_post killed renamable $q0, killed renamable $r2, 16, 1, killed renamable $vpr :: (store 16 into %ir.addr.c, align 4) |
| 324 | + t2LoopEnd killed renamable $lr, %bb.1, implicit-def dead $cpsr |
| 325 | + tB %bb.2, 14 /* CC::al */, $noreg |
| 326 | + |
| 327 | + bb.2.exit: |
| 328 | + tPOP_RET 14 /* CC::al */, $noreg, def $r4, def $pc |
| 329 | +
|
| 330 | +... |
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