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1# RUN: llc -run-pass=aarch64-ldst-opt -aarch64-load-store-renaming=true -mattr=+reserve-x10 \2# RUN: -mattr=+reserve-x11 -mattr=+reserve-x15 -mtriple=arm64-apple-iphoneos -verify-machineinstrs \3# RUN: -o - %s | FileCheck --check-prefix=CHECK --check-prefix=PRESERVED %s4 5# RUN: llc -run-pass=aarch64-ldst-opt -aarch64-load-store-renaming=true -mtriple=arm64-apple-iphoneos \6# RUN: -verify-machineinstrs -o - %s | FileCheck --check-prefix=CHECK --check-prefix=NOPRES %s7 8 9# Make sure we do not pick reserved registers. For test1, we would pick x10,10# and for test2 we would pick x15, both of which are reserved.11#12---13# CHECK-LABEL: name: test114# CHECK: bb.0:15# CHECK-NEXT: liveins: $x0, $x116# PRESERVED: $x9, renamable $x8 = LDPXi renamable $x0, 0 :: (load (s64))17# NOPRES: $x10, renamable $x8 = LDPXi renamable $x0, 0 :: (load (s64))18# CHECK: renamable $x9 = LDRXui renamable $x0, 1 :: (load (s64))19# CHECK-NEXT: STRXui renamable $x9, renamable $x0, 100 :: (store (s64), align 4)20# CHECK-NEXT: renamable $x8 = ADDXrr $x8, $x821# PRESERVED-NEXT: STRXui renamable $x8, renamable $x0, 10 :: (store (s64), align 4)22# NOPRES-NEXT: STPXi renamable $x8, killed $x10, renamable $x0, 10 :: (store (s64), align 4)23# CHECK-NEXT: RET undef $lr24 25name: test126alignment: 427tracksRegLiveness: true28liveins:29 - { reg: '$x0' }30 - { reg: '$x1' }31 - { reg: '$x8' }32frameInfo:33 maxAlignment: 134 maxCallFrameSize: 035machineFunctionInfo: {}36body: |37 bb.0:38 liveins: $x0, $x139 renamable $x9, renamable $x8 = LDPXi renamable $x0, 0 :: (load (s64))40 STRXui renamable killed $x9, renamable $x0, 11 :: (store (s64), align 4)41 renamable $x9 = LDRXui renamable $x0, 1 :: (load (s64))42 STRXui renamable $x9, renamable $x0, 100 :: (store (s64), align 4)43 renamable $x8 = ADDXrr $x8, $x844 STRXui renamable $x8, renamable $x0, 10 :: (store (s64), align 4)45 RET undef $lr46 47...48# CHECK-LABEL: name: test249# CHECK: bb.0:50# CHECK-NEXT: liveins: $x0, $x1, $x2, $x3, $x4, $x5, $x6, $x7, $x9, $x10, $x11, $x12, $x1351# CHECK: renamable $w19 = LDRWui renamable $x0, 0 :: (load (s64))52# PRESERVED-NEXT: renamable $x9, renamable $x8 = LDPXi renamable $x0, 1 :: (load (s64))53# NOPRES-NEXT: renamable $x9, renamable $x8 = LDPXi renamable $x0, 1 :: (load (s64))54# CHECK-NEXT: STRXui killed renamable $x9, renamable $x0, 11 :: (store (s64), align 4)55# CHECK-NEXT: renamable $x9 = LDRXui renamable $x0, 3 :: (load (s64))56# CHECK-NEXT: renamable $x14 = LDRXui renamable $x0, 5 :: (load (s64))57# PRESERVED-NEXT: STRXui renamable $x9, renamable $x0, 10 :: (store (s64), align 4)58# NOPRES-NEXT: STRXui renamable $x9, renamable $x0, 10 :: (store (s64), align 4)59# CHECK-NEXT: STRXui killed renamable $x14, renamable $x0, 200 :: (store (s64), align 4)60# CHECK-NEXT: renamable $w8 = ADDWrr $w19, $w1961# CHECK-NEXT: STRWui renamable $w8, renamable $x0, 100 :: (store (s64), align 4)62# CHECK-NEXT: RET undef $lr63#64name: test265alignment: 466tracksRegLiveness: true67liveins:68 - { reg: '$x0' }69 - { reg: '$x1' }70 - { reg: '$x8' }71frameInfo:72 maxAlignment: 173 maxCallFrameSize: 074machineFunctionInfo: {}75body: |76 bb.0:77 liveins: $x0, $x1, $x2, $x3, $x4, $x5, $x6, $x7, $x9, $x10, $x11, $x12, $x1378 renamable $w19 = LDRWui renamable $x0, 0 :: (load (s64))79 renamable $x9, renamable $x8 = LDPXi renamable $x0, 1 :: (load (s64))80 STRXui renamable killed $x9, renamable $x0, 11 :: (store (s64), align 4)81 renamable $x9 = LDRXui renamable $x0, 3 :: (load (s64))82 renamable $x14 = LDRXui renamable $x0, 5 :: (load (s64))83 STRXui renamable $x9, renamable $x0, 10 :: (store (s64), align 4)84 STRXui renamable killed $x14, renamable $x0, 200 :: (store (s64), align 4)85 renamable $w8 = ADDWrr $w19, $w1986 STRWui renamable $w8, renamable $x0, 100 :: (store (s64), align 4)87 RET undef $lr88 89...90---91