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1# RUN: llc -mtriple=thumbv7-unknown-linux-android30 -run-pass=prologepilog -verify-machineinstrs %s -o - | FileCheck %s2 3# When saving and restoring callee-saved registers, LR is saved but not restored,4# because it is reloaded directly into PC. Therefore it should be available to scavenge5# without requiring an emergency spill slot.6 7# Used to result in8# LLVM ERROR: Error while trying to spill LR from class GPR: Cannot scavenge register without an emergency spill slot!9 10# Check that LR is considered live in11# CHECK: liveins: {{.*}}$lr12 13# Check that LR is saved to the stack14# CHECK: frame-setup t2STMDB_UPD {{.*}} killed $lr15# CHECK: frame-setup CFI_INSTRUCTION offset $lr,16 17# Check that LR was successfully scavenged somewhere in the function18# CHECK: $lr = t2ADDri19# CHECK: VSTMQIA $q11, killed $lr20 21# Check that LR is not restored at the end of the function22# CHECK-NOT: $lr = frame-destroy23# CHECK-NOT: frame-destroy VLDMDIA_UPD {{.*}} def $lr24# CHECK-NOT: frame-destroy t2LDMIA_RET {{.*}} def $lr25# CHECK: frame-destroy t2LDMIA_RET {{.*}} def $pc26 27--- |28 target datalayout = "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64"29 30 %S = type { [32 x i8] }31 32 define void @f(ptr %arg) {33 entry:34 %ppp..sroa_idx = getelementptr inbounds %S, ptr %arg, i32 -835 %ppp..sroa_cast248 = bitcast ptr %ppp..sroa_idx to ptr36 %ppp.copyload = load <8 x float>, ptr %ppp..sroa_cast248, align 3237 38 %xxx..sroa_idx = getelementptr inbounds %S, ptr %arg, i32 -539 %xxx..sroa_cast248 = bitcast ptr %xxx..sroa_idx to ptr40 %xxx.copyload = load <8 x float>, ptr %xxx..sroa_cast248, align 3241 42 %yyy..sroa_idx = getelementptr inbounds %S, ptr %arg, i32 -243 %yyy..sroa_cast244 = bitcast ptr %yyy..sroa_idx to ptr44 %yyy.copyload = load <8 x float>, ptr %yyy..sroa_cast244, align 3245 46 %zzz..sroa_idx = getelementptr inbounds %S, ptr %arg, i32 -747 %zzz..sroa_cast241 = bitcast ptr %zzz..sroa_idx to ptr48 %zzz.copyload = load <8 x float>, ptr %zzz..sroa_cast241, align 3249 50 %www..sroa_idx = getelementptr inbounds %S, ptr %arg, i32 -451 %www..sroa_cast238 = bitcast ptr %www..sroa_idx to ptr52 %www.copyload = load <8 x float>, ptr %www..sroa_cast238, align 3253 54 %uuu..sroa_idx = getelementptr inbounds %S, ptr %arg, i32 155 %uuu..sroa_cast235 = bitcast ptr %uuu..sroa_idx to ptr56 %uuu.copyload = load <8 x float>, ptr %uuu..sroa_cast235, align 3257 58 %vvv..sroa_idx = getelementptr inbounds %S, ptr %arg, i32 -659 %vvv..sroa_cast230 = bitcast ptr %vvv..sroa_idx to ptr60 %vvv.copyload = load <8 x float>, ptr %vvv..sroa_cast230, align 3261 62 %ttt..sroa_idx = getelementptr inbounds %S, ptr %arg, i32 -363 %ttt..sroa_cast226 = bitcast ptr %ttt..sroa_idx to ptr64 %ttt.copyload = load <8 x float>, ptr %ttt..sroa_cast226, align 3265 66 %sss..sroa_cast223 = bitcast ptr %arg to ptr67 %sss.copyload = load <8 x float>, ptr %sss..sroa_cast223, align 3268 69 %mul.i = fmul <8 x float> %ppp.copyload, %www.copyload70 %mul.i185 = fmul <8 x float> %xxx.copyload, %uuu.copyload71 %mul.i179 = fmul <8 x float> %mul.i185, %vvv.copyload72 %mul.i173 = fmul <8 x float> %mul.i179, %ttt.copyload73 %mul.i167 = fmul <8 x float> %zzz.copyload, %mul.i17374 %add.i = fadd <8 x float> %mul.i, %mul.i16775 %div.i = fdiv <8 x float> zeroinitializer, %add.i76 %mul.i153 = fmul <8 x float> %uuu.copyload, %div.i77 78 store <8 x float> %mul.i153, ptr %ppp..sroa_cast248, align 3279 80 %mul.i147 = fmul <8 x float> %uuu.copyload, %vvv.copyload81 %mul.i141 = fmul <8 x float> %zzz.copyload, %sss.copyload82 %mul.i135 = fmul <8 x float> %mul.i141, %div.i83 %sub.i129 = fsub <8 x float> %mul.i147, %mul.i13584 85 store <8 x float> %sub.i129, ptr %zzz..sroa_cast241, align 3286 store <8 x float> %div.i, ptr %vvv..sroa_cast230, align 3287 store <8 x float> %div.i, ptr %xxx..sroa_cast248, align 3288 89 %mul.i123 = fmul <8 x float> %yyy.copyload, %vvv.copyload90 %mul.i117 = fmul <8 x float> %mul.i123, %div.i91 %sub.i111 = fsub <8 x float> %sss.copyload, %mul.i11792 store <8 x float> %sub.i111, ptr %www..sroa_cast238, align 3293 94 %mul.i105 = fmul <8 x float> %ppp.copyload, %ttt.copyload95 %mul.i99 = fmul <8 x float> %mul.i105, %div.i96 %sub.i93 = fsub <8 x float> %xxx.copyload, %mul.i9997 store <8 x float> %sub.i93, ptr %ttt..sroa_cast226, align 3298 99 %mul.i81 = fmul <8 x float> %yyy.copyload, %www.copyload100 %mul.i75 = fmul <8 x float> %mul.i81, %div.i101 %sub.i = fsub <8 x float> %mul.i185, %mul.i75102 store <8 x float> %sub.i, ptr %yyy..sroa_cast244, align 32103 104 ret void105 }106...107---108name: f109alignment: 2110tracksRegLiveness: true111liveins:112 - { reg: '$r0' }113frameInfo:114 maxAlignment: 16115 maxCallFrameSize: 0116stack:117 - { id: 0, type: spill-slot, size: 16, alignment: 16 }118 - { id: 1, type: spill-slot, size: 16, alignment: 16 }119 - { id: 2, type: spill-slot, size: 16, alignment: 16 }120 - { id: 3, type: spill-slot, size: 16, alignment: 16 }121constants:122 - id: 0123 value: 'float 0.000000e+00'124 alignment: 4125machineFunctionInfo: {}126body: |127 bb.0.entry:128 liveins: $r0129 $r2 = t2SUBri $r0, 128, 14 /* CC::al */, $noreg, $noreg130 $q8 = VLD1q64 $r2, 16, 14 /* CC::al */, $noreg :: (load (s128) from %ir.www..sroa_cast238, align 32)131 VSTMQIA $q8, %stack.0, 14 /* CC::al */, $noreg :: (store (s128) into %stack.0)132 $r12 = t2SUBri $r0, 256, 14 /* CC::al */, $noreg, $noreg133 $q12 = VLD1q64 $r12, 16, 14 /* CC::al */, $noreg :: (load (s128) from %ir.ppp..sroa_cast248, align 32)134 $q1 = VMULfq $q12, killed $q8, 14 /* CC::al */, $noreg135 $r3 = nuw t2ADDri $r0, 32, 14 /* CC::al */, $noreg, $noreg136 $q10 = VLD1q64 killed $r3, 16, 14 /* CC::al */, $noreg :: (load (s128) from %ir.uuu..sroa_cast235, align 32)137 $r5 = t2SUBri $r0, 160, 14 /* CC::al */, $noreg, $noreg138 $q15 = VLD1q64 $r5, 16, 14 /* CC::al */, $noreg :: (load (s128) from %ir.xxx..sroa_cast248, align 32)139 $q14 = VMULfq $q15, $q10, 14 /* CC::al */, $noreg140 $r6 = t2SUBri $r0, 192, 14 /* CC::al */, $noreg, $noreg141 $q13 = VLD1q64 $r6, 16, 14 /* CC::al */, $noreg :: (load (s128) from %ir.vvv..sroa_cast230, align 32)142 $q8 = VMULfq $q14, $q13, 14 /* CC::al */, $noreg143 $r4 = t2SUBri $r0, 96, 14 /* CC::al */, $noreg, $noreg144 $q6 = VLD1q64 $r4, 16, 14 /* CC::al */, $noreg :: (load (s128) from %ir.ttt..sroa_cast226, align 32)145 $q8 = VMULfq killed $q8, $q6, 14 /* CC::al */, $noreg146 $r3 = t2SUBri $r0, 224, 14 /* CC::al */, $noreg, $noreg147 $q5 = VLD1q64 $r3, 16, 14 /* CC::al */, $noreg :: (load (s128) from %ir.zzz..sroa_cast241, align 32)148 $q1 = VMLAfq killed $q1, $q5, killed $q8, 14 /* CC::al */, $noreg149 $s8 = VLDRS %const.0, 0, 14 /* CC::al */, $noreg :: (load (s32) from constant-pool)150 $s3 = VDIVS $s8, $s7, 14 /* CC::al */, $noreg, implicit-def $q0, implicit $fpscr_rm151 $s2 = VDIVS $s8, $s6, 14 /* CC::al */, $noreg, implicit killed $q0, implicit-def $q0, implicit $fpscr_rm152 $s1 = VDIVS $s8, $s5, 14 /* CC::al */, $noreg, implicit killed $q0, implicit-def $q0, implicit $fpscr_rm153 $s0 = VDIVS $s8, $s4, 14 /* CC::al */, $noreg, implicit killed $q1, implicit killed $q0, implicit-def $q0, implicit $fpscr_rm154 $r7 = t2SUBri $r0, 64, 14 /* CC::al */, $noreg, $noreg155 $q8 = VLD1q64 $r7, 16, 14 /* CC::al */, $noreg :: (load (s128) from %ir.yyy..sroa_cast244, align 32)156 VSTMQIA $q8, %stack.1, 14 /* CC::al */, $noreg :: (store (s128) into %stack.1)157 $q8 = VMULfq killed $q8, $q13, 14 /* CC::al */, $noreg158 $r1 = t2ADDri $r0, 48, 14 /* CC::al */, $noreg, $noreg159 $q9, $r0 = VLD1q32wb_fixed killed $r0, 16, 14 /* CC::al */, $noreg :: (load (s128) from %ir.sss..sroa_cast223, align 32)160 $q11 = COPY $q9161 $q11 = VMLSfq killed $q11, killed $q8, $q0, 14 /* CC::al */, $noreg162 $r2 = VST1q32wb_fixed killed $r2, 16, killed $q11, 14 /* CC::al */, $noreg :: (store (s128) into %ir.www..sroa_cast238, align 32)163 $q8 = VLD1q64 $r2, 16, 14 /* CC::al */, $noreg :: (load (s128) from %ir.www..sroa_cast238 + 16, basealign 32)164 VSTMQIA $q8, %stack.3, 14 /* CC::al */, $noreg :: (store (s128) into %stack.3)165 $q11 = VMULfq $q10, $q0, 14 /* CC::al */, $noreg166 $r12 = VST1q32wb_fixed killed $r12, 16, killed $q11, 14 /* CC::al */, $noreg :: (store (s128) into %ir.ppp..sroa_cast248, align 32)167 $q11 = VLD1q64 $r12, 16, 14 /* CC::al */, $noreg :: (load (s128) from %ir.ppp..sroa_cast248 + 16, basealign 32)168 VSTMQIA $q11, %stack.2, 14 /* CC::al */, $noreg :: (store (s128) into %stack.2)169 $q1 = VMULfq killed $q11, killed $q8, 14 /* CC::al */, $noreg170 $r5 = VST1q32wb_fixed killed $r5, 16, $q0, 14 /* CC::al */, $noreg :: (store (s128) into %ir.xxx..sroa_cast248, align 32)171 $q4 = VLD1q64 $r5, 16, 14 /* CC::al */, $noreg :: (load (s128) from %ir.xxx..sroa_cast248 + 16, basealign 32)172 $q11 = VLD1q64 killed $r1, 16, 14 /* CC::al */, $noreg :: (load (s128) from %ir.uuu..sroa_cast235 + 16, basealign 32)173 $q7 = VMULfq $q4, $q11, 14 /* CC::al */, $noreg174 $r6 = VST1q32wb_fixed killed $r6, 16, $q0, 14 /* CC::al */, $noreg :: (store (s128) into %ir.vvv..sroa_cast230, align 32)175 $q3 = VLD1q64 $r6, 16, 14 /* CC::al */, $noreg :: (load (s128) from %ir.vvv..sroa_cast230 + 16, basealign 32)176 $q8 = VMULfq $q7, $q3, 14 /* CC::al */, $noreg177 $q12 = VMULfq killed $q12, killed $q6, 14 /* CC::al */, $noreg178 $q15 = VMLSfq killed $q15, killed $q12, $q0, 14 /* CC::al */, $noreg179 $r4 = VST1q32wb_fixed killed $r4, 16, killed $q15, 14 /* CC::al */, $noreg :: (store (s128) into %ir.ttt..sroa_cast226, align 32)180 $q12 = VLD1q64 $r4, 16, 14 /* CC::al */, $noreg :: (load (s128) from %ir.ttt..sroa_cast226 + 16, basealign 32)181 $q8 = VMULfq killed $q8, $q12, 14 /* CC::al */, $noreg182 $q9 = VMULfq killed $q5, killed $q9, 14 /* CC::al */, $noreg183 $q10 = VMULfq killed $q10, killed $q13, 14 /* CC::al */, $noreg184 $q10 = VMLSfq killed $q10, killed $q9, $q0, 14 /* CC::al */, $noreg185 $r3 = VST1q32wb_fixed killed $r3, 16, killed $q10, 14 /* CC::al */, $noreg :: (store (s128) into %ir.zzz..sroa_cast241, align 32)186 $q10 = VLD1q64 $r3, 16, 14 /* CC::al */, $noreg :: (load (s128) from %ir.zzz..sroa_cast241 + 16, basealign 32)187 $q1 = VMLAfq killed $q1, $q10, killed $q8, 14 /* CC::al */, $noreg188 $s23 = VDIVS $s8, $s7, 14 /* CC::al */, $noreg, implicit-def $q5, implicit $fpscr_rm189 $s22 = VDIVS $s8, $s6, 14 /* CC::al */, $noreg, implicit killed $q5, implicit-def $q5, implicit $fpscr_rm190 $s21 = VDIVS $s8, $s5, 14 /* CC::al */, $noreg, implicit killed $q5, implicit-def $q5, implicit $fpscr_rm191 $s20 = VDIVS killed $s8, $s4, 14 /* CC::al */, $noreg, implicit killed $q1, implicit killed $q5, implicit-def $q5, implicit $fpscr_rm192 VST1q64 killed $r5, 16, $q5, 14 /* CC::al */, $noreg :: (store (s128) into %ir.xxx..sroa_cast248 + 16, basealign 32)193 VST1q64 killed $r6, 16, $q5, 14 /* CC::al */, $noreg :: (store (s128) into %ir.vvv..sroa_cast230 + 16, basealign 32)194 $q8 = VLDMQIA %stack.0, 14 /* CC::al */, $noreg :: (load (s128) from %stack.0)195 $q9 = VLDMQIA %stack.1, 14 /* CC::al */, $noreg :: (load (s128) from %stack.1)196 $q8 = VMULfq killed $q9, killed $q8, 14 /* CC::al */, $noreg197 $q14 = VMLSfq killed $q14, killed $q8, killed $q0, 14 /* CC::al */, $noreg198 $r7 = VST1q32wb_fixed killed $r7, 16, killed $q14, 14 /* CC::al */, $noreg :: (store (s128) into %ir.yyy..sroa_cast244, align 32)199 $q8 = VLD1q64 $r7, 16, 14 /* CC::al */, $noreg :: (load (s128) from %ir.yyy..sroa_cast244 + 16, basealign 32)200 $q9 = VLDMQIA %stack.3, 14 /* CC::al */, $noreg :: (load (s128) from %stack.3)201 $q9 = VMULfq $q8, killed $q9, 14 /* CC::al */, $noreg202 $q7 = VMLSfq killed $q7, killed $q9, $q5, 14 /* CC::al */, $noreg203 VST1q64 killed $r7, 16, killed $q7, 14 /* CC::al */, $noreg :: (store (s128) into %ir.yyy..sroa_cast244 + 16, basealign 32)204 $q9 = VLDMQIA %stack.2, 14 /* CC::al */, $noreg :: (load (s128) from %stack.2)205 $q9 = VMULfq killed $q9, killed $q12, 14 /* CC::al */, $noreg206 $q4 = VMLSfq killed $q4, killed $q9, $q5, 14 /* CC::al */, $noreg207 VST1q64 killed $r4, 16, killed $q4, 14 /* CC::al */, $noreg :: (store (s128) into %ir.ttt..sroa_cast226 + 16, basealign 32)208 $q8 = VMULfq killed $q8, $q3, 14 /* CC::al */, $noreg209 $q9 = VLD1q64 killed $r0, 16, 14 /* CC::al */, $noreg :: (load (s128) from %ir.sss..sroa_cast223 + 16, basealign 32)210 $q12 = COPY $q9211 $q12 = VMLSfq killed $q12, killed $q8, $q5, 14 /* CC::al */, $noreg212 VST1q64 killed $r2, 16, killed $q12, 14 /* CC::al */, $noreg :: (store (s128) into %ir.www..sroa_cast238 + 16, basealign 32)213 $q8 = VMULfq $q11, killed $q3, 14 /* CC::al */, $noreg214 $q9 = VMULfq killed $q10, killed $q9, 14 /* CC::al */, $noreg215 $q8 = VMLSfq killed $q8, killed $q9, $q5, 14 /* CC::al */, $noreg216 VST1q64 killed $r3, 16, killed $q8, 14 /* CC::al */, $noreg :: (store (s128) into %ir.zzz..sroa_cast241 + 16, basealign 32)217 $q8 = VMULfq killed $q11, killed $q5, 14 /* CC::al */, $noreg218 VST1q64 killed $r12, 16, killed $q8, 14 /* CC::al */, $noreg :: (store (s128) into %ir.ppp..sroa_cast248 + 16, basealign 32)219 tBX_RET 14 /* CC::al */, $noreg220 221...222