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 %s 4 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 %s 7 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: test1 14# CHECK: bb.0: 15# CHECK-NEXT: liveins: $x0, $x1 16# PRESERVED: $x12, renamable $x8 = LDPXi renamable $x0, 0 :: (load 8) 17# NOPRES: $x10, renamable $x8 = LDPXi renamable $x0, 0 :: (load 8) 18# CHECK-NEXT: renamable $x9 = LDRXui renamable $x0, 1 :: (load 8) 19# CHECK-NEXT: STRXui renamable $x9, renamable $x0, 100 :: (store 8, align 4) 20# CHECK-NEXT: renamable $x8 = ADDXrr $x8, $x8 21# PRESERVED-NEXT: STPXi renamable $x8, killed $x12, renamable $x0, 10 :: (store 8, align 4) 22# NOPRES-NEXT: STPXi renamable $x8, killed $x10, renamable $x0, 10 :: (store 8, align 4) 23# CHECK-NEXT: RET undef $lr 24 25name: test1 26alignment: 4 27tracksRegLiveness: true 28liveins: 29 - { reg: '$x0' } 30 - { reg: '$x1' } 31 - { reg: '$x8' } 32frameInfo: 33 maxAlignment: 1 34 maxCallFrameSize: 0 35machineFunctionInfo: {} 36body: | 37 bb.0: 38 liveins: $x0, $x1 39 renamable $x9, renamable $x8 = LDPXi renamable $x0, 0 :: (load 8) 40 STRXui renamable killed $x9, renamable $x0, 11 :: (store 8, align 4) 41 renamable $x9 = LDRXui renamable $x0, 1 :: (load 8) 42 STRXui renamable $x9, renamable $x0, 100 :: (store 8, align 4) 43 renamable $x8 = ADDXrr $x8, $x8 44 STRXui renamable $x8, renamable $x0, 10 :: (store 8, align 4) 45 RET undef $lr 46 47... 48# CHECK-LABEL: name: test2 49# CHECK: bb.0: 50# CHECK-NEXT: liveins: $x0, $x1, $x10, $x11, $x12, $x13 51# CHECK: renamable $w19 = LDRWui renamable $x0, 0 :: (load 8) 52# PRESERVED-NEXT: $x18, renamable $x8 = LDPXi renamable $x0, 1 :: (load 8) 53# NOPRES-NEXT: $x15, renamable $x8 = LDPXi renamable $x0, 1 :: (load 8) 54# CHECK-NEXT: renamable $x9 = LDRXui renamable $x0, 3 :: (load 8) 55# CHECK-NEXT: renamable $x14 = LDRXui renamable $x0, 5 :: (load 8) 56# PRESERVED-NEXT: STPXi renamable $x9, killed $x18, renamable $x0, 10 :: (store 8, align 4) 57# NOPRES-NEXT: STPXi renamable $x9, killed $x15, renamable $x0, 10 :: (store 8, align 4) 58# CHECK-NEXT: STRXui killed renamable $x14, renamable $x0, 200 :: (store 8, align 4) 59# CHECK-NEXT: renamable $w8 = ADDWrr $w19, $w19 60# CHECK-NEXT: STRWui renamable $w8, renamable $x0, 100 :: (store 8, align 4) 61# CHECK-NEXT: RET undef $lr 62# 63name: test2 64alignment: 4 65tracksRegLiveness: true 66liveins: 67 - { reg: '$x0' } 68 - { reg: '$x1' } 69 - { reg: '$x8' } 70frameInfo: 71 maxAlignment: 1 72 maxCallFrameSize: 0 73machineFunctionInfo: {} 74body: | 75 bb.0: 76 liveins: $x0, $x1, $x10, $x11, $x12, $x13 77 renamable $w19 = LDRWui renamable $x0, 0 :: (load 8) 78 renamable $x9, renamable $x8 = LDPXi renamable $x0, 1 :: (load 8) 79 STRXui renamable killed $x9, renamable $x0, 11 :: (store 8, align 4) 80 renamable $x9 = LDRXui renamable $x0, 3 :: (load 8) 81 renamable $x14 = LDRXui renamable $x0, 5 :: (load 8) 82 STRXui renamable $x9, renamable $x0, 10 :: (store 8, align 4) 83 STRXui renamable killed $x14, renamable $x0, 200 :: (store 8, align 4) 84 renamable $w8 = ADDWrr $w19, $w19 85 STRWui renamable $w8, renamable $x0, 100 :: (store 8, align 4) 86 RET undef $lr 87 88... 89--- 90