| # RUN: llc -mtriple=thumbv7-unknown-linux-android30 -run-pass=prologepilog -verify-machineinstrs %s -o - | FileCheck %s |
| |
| # When saving and restoring callee-saved registers, LR is saved but not restored, |
| # because it is reloaded directly into PC. Therefore it should be available to scavenge |
| # without requiring an emergency spill slot. |
| |
| # Used to result in |
| # LLVM ERROR: Error while trying to spill LR from class GPR: Cannot scavenge register without an emergency spill slot! |
| |
| # Check that LR is considered live in |
| # CHECK: liveins: {{.*}}$lr |
| |
| # Check that LR is saved to the stack |
| # CHECK: frame-setup t2STMDB_UPD {{.*}} killed $lr |
| # CHECK: frame-setup CFI_INSTRUCTION offset $lr, |
| |
| # Check that LR was successfully scavenged somewhere in the function |
| # CHECK: $lr = t2ADDri |
| # CHECK: VSTMQIA $q11, killed $lr |
| |
| # Check that LR is not restored at the end of the function |
| # CHECK-NOT: $lr = frame-destroy |
| # CHECK-NOT: frame-destroy VLDMDIA_UPD {{.*}} def $lr |
| # CHECK-NOT: frame-destroy t2LDMIA_RET {{.*}} def $lr |
| # CHECK: frame-destroy t2LDMIA_RET {{.*}} def $pc |
| |
| --- | |
| target datalayout = "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64" |
| |
| %S = type { [32 x i8] } |
| |
| define void @f(%S* %arg) { |
| entry: |
| %ppp..sroa_idx = getelementptr inbounds %S, %S* %arg, i32 -8 |
| %ppp..sroa_cast248 = bitcast %S* %ppp..sroa_idx to <8 x float>* |
| %ppp.copyload = load <8 x float>, <8 x float>* %ppp..sroa_cast248, align 32 |
| |
| %xxx..sroa_idx = getelementptr inbounds %S, %S* %arg, i32 -5 |
| %xxx..sroa_cast248 = bitcast %S* %xxx..sroa_idx to <8 x float>* |
| %xxx.copyload = load <8 x float>, <8 x float>* %xxx..sroa_cast248, align 32 |
| |
| %yyy..sroa_idx = getelementptr inbounds %S, %S* %arg, i32 -2 |
| %yyy..sroa_cast244 = bitcast %S* %yyy..sroa_idx to <8 x float>* |
| %yyy.copyload = load <8 x float>, <8 x float>* %yyy..sroa_cast244, align 32 |
| |
| %zzz..sroa_idx = getelementptr inbounds %S, %S* %arg, i32 -7 |
| %zzz..sroa_cast241 = bitcast %S* %zzz..sroa_idx to <8 x float>* |
| %zzz.copyload = load <8 x float>, <8 x float>* %zzz..sroa_cast241, align 32 |
| |
| %www..sroa_idx = getelementptr inbounds %S, %S* %arg, i32 -4 |
| %www..sroa_cast238 = bitcast %S* %www..sroa_idx to <8 x float>* |
| %www.copyload = load <8 x float>, <8 x float>* %www..sroa_cast238, align 32 |
| |
| %uuu..sroa_idx = getelementptr inbounds %S, %S* %arg, i32 1 |
| %uuu..sroa_cast235 = bitcast %S* %uuu..sroa_idx to <8 x float>* |
| %uuu.copyload = load <8 x float>, <8 x float>* %uuu..sroa_cast235, align 32 |
| |
| %vvv..sroa_idx = getelementptr inbounds %S, %S* %arg, i32 -6 |
| %vvv..sroa_cast230 = bitcast %S* %vvv..sroa_idx to <8 x float>* |
| %vvv.copyload = load <8 x float>, <8 x float>* %vvv..sroa_cast230, align 32 |
| |
| %ttt..sroa_idx = getelementptr inbounds %S, %S* %arg, i32 -3 |
| %ttt..sroa_cast226 = bitcast %S* %ttt..sroa_idx to <8 x float>* |
| %ttt.copyload = load <8 x float>, <8 x float>* %ttt..sroa_cast226, align 32 |
| |
| %sss..sroa_cast223 = bitcast %S* %arg to <8 x float>* |
| %sss.copyload = load <8 x float>, <8 x float>* %sss..sroa_cast223, align 32 |
| |
| %mul.i = fmul <8 x float> %ppp.copyload, %www.copyload |
| %mul.i185 = fmul <8 x float> %xxx.copyload, %uuu.copyload |
| %mul.i179 = fmul <8 x float> %mul.i185, %vvv.copyload |
| %mul.i173 = fmul <8 x float> %mul.i179, %ttt.copyload |
| %mul.i167 = fmul <8 x float> %zzz.copyload, %mul.i173 |
| %add.i = fadd <8 x float> %mul.i, %mul.i167 |
| %div.i = fdiv <8 x float> zeroinitializer, %add.i |
| %mul.i153 = fmul <8 x float> %uuu.copyload, %div.i |
| |
| store <8 x float> %mul.i153, <8 x float>* %ppp..sroa_cast248, align 32 |
| |
| %mul.i147 = fmul <8 x float> %uuu.copyload, %vvv.copyload |
| %mul.i141 = fmul <8 x float> %zzz.copyload, %sss.copyload |
| %mul.i135 = fmul <8 x float> %mul.i141, %div.i |
| %sub.i129 = fsub <8 x float> %mul.i147, %mul.i135 |
| |
| store <8 x float> %sub.i129, <8 x float>* %zzz..sroa_cast241, align 32 |
| store <8 x float> %div.i, <8 x float>* %vvv..sroa_cast230, align 32 |
| store <8 x float> %div.i, <8 x float>* %xxx..sroa_cast248, align 32 |
| |
| %mul.i123 = fmul <8 x float> %yyy.copyload, %vvv.copyload |
| %mul.i117 = fmul <8 x float> %mul.i123, %div.i |
| %sub.i111 = fsub <8 x float> %sss.copyload, %mul.i117 |
| store <8 x float> %sub.i111, <8 x float>* %www..sroa_cast238, align 32 |
| |
| %mul.i105 = fmul <8 x float> %ppp.copyload, %ttt.copyload |
| %mul.i99 = fmul <8 x float> %mul.i105, %div.i |
| %sub.i93 = fsub <8 x float> %xxx.copyload, %mul.i99 |
| store <8 x float> %sub.i93, <8 x float>* %ttt..sroa_cast226, align 32 |
| |
| %mul.i81 = fmul <8 x float> %yyy.copyload, %www.copyload |
| %mul.i75 = fmul <8 x float> %mul.i81, %div.i |
| %sub.i = fsub <8 x float> %mul.i185, %mul.i75 |
| store <8 x float> %sub.i, <8 x float>* %yyy..sroa_cast244, align 32 |
| |
| ret void |
| } |
| ... |
| --- |
| name: f |
| alignment: 2 |
| tracksRegLiveness: true |
| liveins: |
| - { reg: '$r0' } |
| frameInfo: |
| maxAlignment: 16 |
| maxCallFrameSize: 0 |
| stack: |
| - { id: 0, type: spill-slot, size: 16, alignment: 16 } |
| - { id: 1, type: spill-slot, size: 16, alignment: 16 } |
| - { id: 2, type: spill-slot, size: 16, alignment: 16 } |
| - { id: 3, type: spill-slot, size: 16, alignment: 16 } |
| constants: |
| - id: 0 |
| value: 'float 0.000000e+00' |
| alignment: 4 |
| machineFunctionInfo: {} |
| body: | |
| bb.0.entry: |
| liveins: $r0 |
| $r2 = t2SUBri $r0, 128, 14 /* CC::al */, $noreg, $noreg |
| $q8 = VLD1q64 $r2, 16, 14 /* CC::al */, $noreg :: (load (s128) from %ir.www..sroa_cast238, align 32) |
| VSTMQIA $q8, %stack.0, 14 /* CC::al */, $noreg :: (store (s128) into %stack.0) |
| $r12 = t2SUBri $r0, 256, 14 /* CC::al */, $noreg, $noreg |
| $q12 = VLD1q64 $r12, 16, 14 /* CC::al */, $noreg :: (load (s128) from %ir.ppp..sroa_cast248, align 32) |
| $q1 = VMULfq $q12, killed $q8, 14 /* CC::al */, $noreg |
| $r3 = nuw t2ADDri $r0, 32, 14 /* CC::al */, $noreg, $noreg |
| $q10 = VLD1q64 killed $r3, 16, 14 /* CC::al */, $noreg :: (load (s128) from %ir.uuu..sroa_cast235, align 32) |
| $r5 = t2SUBri $r0, 160, 14 /* CC::al */, $noreg, $noreg |
| $q15 = VLD1q64 $r5, 16, 14 /* CC::al */, $noreg :: (load (s128) from %ir.xxx..sroa_cast248, align 32) |
| $q14 = VMULfq $q15, $q10, 14 /* CC::al */, $noreg |
| $r6 = t2SUBri $r0, 192, 14 /* CC::al */, $noreg, $noreg |
| $q13 = VLD1q64 $r6, 16, 14 /* CC::al */, $noreg :: (load (s128) from %ir.vvv..sroa_cast230, align 32) |
| $q8 = VMULfq $q14, $q13, 14 /* CC::al */, $noreg |
| $r4 = t2SUBri $r0, 96, 14 /* CC::al */, $noreg, $noreg |
| $q6 = VLD1q64 $r4, 16, 14 /* CC::al */, $noreg :: (load (s128) from %ir.ttt..sroa_cast226, align 32) |
| $q8 = VMULfq killed $q8, $q6, 14 /* CC::al */, $noreg |
| $r3 = t2SUBri $r0, 224, 14 /* CC::al */, $noreg, $noreg |
| $q5 = VLD1q64 $r3, 16, 14 /* CC::al */, $noreg :: (load (s128) from %ir.zzz..sroa_cast241, align 32) |
| $q1 = VMLAfq killed $q1, $q5, killed $q8, 14 /* CC::al */, $noreg |
| $s8 = VLDRS %const.0, 0, 14 /* CC::al */, $noreg :: (load (s32) from constant-pool) |
| $s3 = VDIVS $s8, $s7, 14 /* CC::al */, $noreg, implicit-def $q0 |
| $s2 = VDIVS $s8, $s6, 14 /* CC::al */, $noreg, implicit killed $q0, implicit-def $q0 |
| $s1 = VDIVS $s8, $s5, 14 /* CC::al */, $noreg, implicit killed $q0, implicit-def $q0 |
| $s0 = VDIVS $s8, $s4, 14 /* CC::al */, $noreg, implicit killed $q1, implicit killed $q0, implicit-def $q0 |
| $r7 = t2SUBri $r0, 64, 14 /* CC::al */, $noreg, $noreg |
| $q8 = VLD1q64 $r7, 16, 14 /* CC::al */, $noreg :: (load (s128) from %ir.yyy..sroa_cast244, align 32) |
| VSTMQIA $q8, %stack.1, 14 /* CC::al */, $noreg :: (store (s128) into %stack.1) |
| $q8 = VMULfq killed $q8, $q13, 14 /* CC::al */, $noreg |
| $r1 = t2ADDri $r0, 48, 14 /* CC::al */, $noreg, $noreg |
| $q9, $r0 = VLD1q32wb_fixed killed $r0, 16, 14 /* CC::al */, $noreg :: (load (s128) from %ir.sss..sroa_cast223, align 32) |
| $q11 = COPY $q9 |
| $q11 = VMLSfq killed $q11, killed $q8, $q0, 14 /* CC::al */, $noreg |
| $r2 = VST1q32wb_fixed killed $r2, 16, killed $q11, 14 /* CC::al */, $noreg :: (store (s128) into %ir.www..sroa_cast238, align 32) |
| $q8 = VLD1q64 $r2, 16, 14 /* CC::al */, $noreg :: (load (s128) from %ir.www..sroa_cast238 + 16, basealign 32) |
| VSTMQIA $q8, %stack.3, 14 /* CC::al */, $noreg :: (store (s128) into %stack.3) |
| $q11 = VMULfq $q10, $q0, 14 /* CC::al */, $noreg |
| $r12 = VST1q32wb_fixed killed $r12, 16, killed $q11, 14 /* CC::al */, $noreg :: (store (s128) into %ir.ppp..sroa_cast248, align 32) |
| $q11 = VLD1q64 $r12, 16, 14 /* CC::al */, $noreg :: (load (s128) from %ir.ppp..sroa_cast248 + 16, basealign 32) |
| VSTMQIA $q11, %stack.2, 14 /* CC::al */, $noreg :: (store (s128) into %stack.2) |
| $q1 = VMULfq killed $q11, killed $q8, 14 /* CC::al */, $noreg |
| $r5 = VST1q32wb_fixed killed $r5, 16, $q0, 14 /* CC::al */, $noreg :: (store (s128) into %ir.xxx..sroa_cast248, align 32) |
| $q4 = VLD1q64 $r5, 16, 14 /* CC::al */, $noreg :: (load (s128) from %ir.xxx..sroa_cast248 + 16, basealign 32) |
| $q11 = VLD1q64 killed $r1, 16, 14 /* CC::al */, $noreg :: (load (s128) from %ir.uuu..sroa_cast235 + 16, basealign 32) |
| $q7 = VMULfq $q4, $q11, 14 /* CC::al */, $noreg |
| $r6 = VST1q32wb_fixed killed $r6, 16, $q0, 14 /* CC::al */, $noreg :: (store (s128) into %ir.vvv..sroa_cast230, align 32) |
| $q3 = VLD1q64 $r6, 16, 14 /* CC::al */, $noreg :: (load (s128) from %ir.vvv..sroa_cast230 + 16, basealign 32) |
| $q8 = VMULfq $q7, $q3, 14 /* CC::al */, $noreg |
| $q12 = VMULfq killed $q12, killed $q6, 14 /* CC::al */, $noreg |
| $q15 = VMLSfq killed $q15, killed $q12, $q0, 14 /* CC::al */, $noreg |
| $r4 = VST1q32wb_fixed killed $r4, 16, killed $q15, 14 /* CC::al */, $noreg :: (store (s128) into %ir.ttt..sroa_cast226, align 32) |
| $q12 = VLD1q64 $r4, 16, 14 /* CC::al */, $noreg :: (load (s128) from %ir.ttt..sroa_cast226 + 16, basealign 32) |
| $q8 = VMULfq killed $q8, $q12, 14 /* CC::al */, $noreg |
| $q9 = VMULfq killed $q5, killed $q9, 14 /* CC::al */, $noreg |
| $q10 = VMULfq killed $q10, killed $q13, 14 /* CC::al */, $noreg |
| $q10 = VMLSfq killed $q10, killed $q9, $q0, 14 /* CC::al */, $noreg |
| $r3 = VST1q32wb_fixed killed $r3, 16, killed $q10, 14 /* CC::al */, $noreg :: (store (s128) into %ir.zzz..sroa_cast241, align 32) |
| $q10 = VLD1q64 $r3, 16, 14 /* CC::al */, $noreg :: (load (s128) from %ir.zzz..sroa_cast241 + 16, basealign 32) |
| $q1 = VMLAfq killed $q1, $q10, killed $q8, 14 /* CC::al */, $noreg |
| $s23 = VDIVS $s8, $s7, 14 /* CC::al */, $noreg, implicit-def $q5 |
| $s22 = VDIVS $s8, $s6, 14 /* CC::al */, $noreg, implicit killed $q5, implicit-def $q5 |
| $s21 = VDIVS $s8, $s5, 14 /* CC::al */, $noreg, implicit killed $q5, implicit-def $q5 |
| $s20 = VDIVS killed $s8, $s4, 14 /* CC::al */, $noreg, implicit killed $q1, implicit killed $q5, implicit-def $q5 |
| VST1q64 killed $r5, 16, $q5, 14 /* CC::al */, $noreg :: (store (s128) into %ir.xxx..sroa_cast248 + 16, basealign 32) |
| VST1q64 killed $r6, 16, $q5, 14 /* CC::al */, $noreg :: (store (s128) into %ir.vvv..sroa_cast230 + 16, basealign 32) |
| $q8 = VLDMQIA %stack.0, 14 /* CC::al */, $noreg :: (load (s128) from %stack.0) |
| $q9 = VLDMQIA %stack.1, 14 /* CC::al */, $noreg :: (load (s128) from %stack.1) |
| $q8 = VMULfq killed $q9, killed $q8, 14 /* CC::al */, $noreg |
| $q14 = VMLSfq killed $q14, killed $q8, killed $q0, 14 /* CC::al */, $noreg |
| $r7 = VST1q32wb_fixed killed $r7, 16, killed $q14, 14 /* CC::al */, $noreg :: (store (s128) into %ir.yyy..sroa_cast244, align 32) |
| $q8 = VLD1q64 $r7, 16, 14 /* CC::al */, $noreg :: (load (s128) from %ir.yyy..sroa_cast244 + 16, basealign 32) |
| $q9 = VLDMQIA %stack.3, 14 /* CC::al */, $noreg :: (load (s128) from %stack.3) |
| $q9 = VMULfq $q8, killed $q9, 14 /* CC::al */, $noreg |
| $q7 = VMLSfq killed $q7, killed $q9, $q5, 14 /* CC::al */, $noreg |
| VST1q64 killed $r7, 16, killed $q7, 14 /* CC::al */, $noreg :: (store (s128) into %ir.yyy..sroa_cast244 + 16, basealign 32) |
| $q9 = VLDMQIA %stack.2, 14 /* CC::al */, $noreg :: (load (s128) from %stack.2) |
| $q9 = VMULfq killed $q9, killed $q12, 14 /* CC::al */, $noreg |
| $q4 = VMLSfq killed $q4, killed $q9, $q5, 14 /* CC::al */, $noreg |
| VST1q64 killed $r4, 16, killed $q4, 14 /* CC::al */, $noreg :: (store (s128) into %ir.ttt..sroa_cast226 + 16, basealign 32) |
| $q8 = VMULfq killed $q8, $q3, 14 /* CC::al */, $noreg |
| $q9 = VLD1q64 killed $r0, 16, 14 /* CC::al */, $noreg :: (load (s128) from %ir.sss..sroa_cast223 + 16, basealign 32) |
| $q12 = COPY $q9 |
| $q12 = VMLSfq killed $q12, killed $q8, $q5, 14 /* CC::al */, $noreg |
| VST1q64 killed $r2, 16, killed $q12, 14 /* CC::al */, $noreg :: (store (s128) into %ir.www..sroa_cast238 + 16, basealign 32) |
| $q8 = VMULfq $q11, killed $q3, 14 /* CC::al */, $noreg |
| $q9 = VMULfq killed $q10, killed $q9, 14 /* CC::al */, $noreg |
| $q8 = VMLSfq killed $q8, killed $q9, $q5, 14 /* CC::al */, $noreg |
| VST1q64 killed $r3, 16, killed $q8, 14 /* CC::al */, $noreg :: (store (s128) into %ir.zzz..sroa_cast241 + 16, basealign 32) |
| $q8 = VMULfq killed $q11, killed $q5, 14 /* CC::al */, $noreg |
| VST1q64 killed $r12, 16, killed $q8, 14 /* CC::al */, $noreg :: (store (s128) into %ir.ppp..sroa_cast248 + 16, basealign 32) |
| tBX_RET 14 /* CC::al */, $noreg |
| |
| ... |