| # RUN: llc -run-pass=aarch64-ldst-opt -aarch64-load-store-renaming=true -mattr=+reserve-x10 \ |
| # RUN: -mattr=+reserve-x11 -mattr=+reserve-x15 -mtriple=arm64-apple-iphoneos -verify-machineinstrs \ |
| # RUN: -o - %s | FileCheck --check-prefix=CHECK --check-prefix=PRESERVED %s |
| |
| # RUN: llc -run-pass=aarch64-ldst-opt -aarch64-load-store-renaming=true -mtriple=arm64-apple-iphoneos \ |
| # RUN: -verify-machineinstrs -o - %s | FileCheck --check-prefix=CHECK --check-prefix=NOPRES %s |
| |
| |
| # Make sure we do not pick reserved registers. For test1, we would pick x10, |
| # and for test2 we would pick x15, both of which are reserved. |
| # |
| --- |
| # CHECK-LABEL: name: test1 |
| # CHECK: bb.0: |
| # CHECK-NEXT: liveins: $x0, $x1 |
| # PRESERVED: $x12, renamable $x8 = LDPXi renamable $x0, 0 :: (load 8) |
| # NOPRES: $x10, renamable $x8 = LDPXi renamable $x0, 0 :: (load 8) |
| # CHECK-NEXT: renamable $x9 = LDRXui renamable $x0, 1 :: (load 8) |
| # CHECK-NEXT: STRXui renamable $x9, renamable $x0, 100 :: (store 8, align 4) |
| # CHECK-NEXT: renamable $x8 = ADDXrr $x8, $x8 |
| # PRESERVED-NEXT: STPXi renamable $x8, killed $x12, renamable $x0, 10 :: (store 8, align 4) |
| # NOPRES-NEXT: STPXi renamable $x8, killed $x10, renamable $x0, 10 :: (store 8, align 4) |
| # CHECK-NEXT: RET undef $lr |
| |
| name: test1 |
| alignment: 4 |
| tracksRegLiveness: true |
| liveins: |
| - { reg: '$x0' } |
| - { reg: '$x1' } |
| - { reg: '$x8' } |
| frameInfo: |
| maxAlignment: 1 |
| maxCallFrameSize: 0 |
| machineFunctionInfo: {} |
| body: | |
| bb.0: |
| liveins: $x0, $x1 |
| renamable $x9, renamable $x8 = LDPXi renamable $x0, 0 :: (load 8) |
| STRXui renamable killed $x9, renamable $x0, 11 :: (store 8, align 4) |
| renamable $x9 = LDRXui renamable $x0, 1 :: (load 8) |
| STRXui renamable $x9, renamable $x0, 100 :: (store 8, align 4) |
| renamable $x8 = ADDXrr $x8, $x8 |
| STRXui renamable $x8, renamable $x0, 10 :: (store 8, align 4) |
| RET undef $lr |
| |
| ... |
| # CHECK-LABEL: name: test2 |
| # CHECK: bb.0: |
| # CHECK-NEXT: liveins: $x0, $x1, $x10, $x11, $x12, $x13 |
| # CHECK: renamable $w19 = LDRWui renamable $x0, 0 :: (load 8) |
| # PRESERVED-NEXT: $x18, renamable $x8 = LDPXi renamable $x0, 1 :: (load 8) |
| # NOPRES-NEXT: $x15, renamable $x8 = LDPXi renamable $x0, 1 :: (load 8) |
| # CHECK-NEXT: renamable $x9 = LDRXui renamable $x0, 3 :: (load 8) |
| # CHECK-NEXT: renamable $x14 = LDRXui renamable $x0, 5 :: (load 8) |
| # PRESERVED-NEXT: STPXi renamable $x9, killed $x18, renamable $x0, 10 :: (store 8, align 4) |
| # NOPRES-NEXT: STPXi renamable $x9, killed $x15, renamable $x0, 10 :: (store 8, align 4) |
| # CHECK-NEXT: STRXui killed renamable $x14, renamable $x0, 200 :: (store 8, align 4) |
| # CHECK-NEXT: renamable $w8 = ADDWrr $w19, $w19 |
| # CHECK-NEXT: STRWui renamable $w8, renamable $x0, 100 :: (store 8, align 4) |
| # CHECK-NEXT: RET undef $lr |
| # |
| name: test2 |
| alignment: 4 |
| tracksRegLiveness: true |
| liveins: |
| - { reg: '$x0' } |
| - { reg: '$x1' } |
| - { reg: '$x8' } |
| frameInfo: |
| maxAlignment: 1 |
| maxCallFrameSize: 0 |
| machineFunctionInfo: {} |
| body: | |
| bb.0: |
| liveins: $x0, $x1, $x10, $x11, $x12, $x13 |
| renamable $w19 = LDRWui renamable $x0, 0 :: (load 8) |
| renamable $x9, renamable $x8 = LDPXi renamable $x0, 1 :: (load 8) |
| STRXui renamable killed $x9, renamable $x0, 11 :: (store 8, align 4) |
| renamable $x9 = LDRXui renamable $x0, 3 :: (load 8) |
| renamable $x14 = LDRXui renamable $x0, 5 :: (load 8) |
| STRXui renamable $x9, renamable $x0, 10 :: (store 8, align 4) |
| STRXui renamable killed $x14, renamable $x0, 200 :: (store 8, align 4) |
| renamable $w8 = ADDWrr $w19, $w19 |
| STRWui renamable $w8, renamable $x0, 100 :: (store 8, align 4) |
| RET undef $lr |
| |
| ... |
| --- |
