| # RUN: llc -mtriple=aarch64-none-linux-gnu -run-pass=prologepilog %s -o - | FileCheck %s |
| |
| # Ensure references to scavenged stack slots in the CSR area use the |
| # FP as a base when the stack pointer must be aligned to something |
| # larger than required by the target. This is necessary because the |
| # alignment padding area is between the CSR area and the SP, so the SP |
| # cannot be used to reference the CSR area. |
| name: test |
| tracksRegLiveness: true |
| frameInfo: |
| maxAlignment: 64 |
| # CHECK: stack: |
| # CHECK: id: 0, name: '', type: default, offset: -64, size: 4, alignment: 64 |
| # CHECK-NEXT: stack-id: default |
| # CHECK-NEXT: local-offset: -64 |
| # CHECK: id: 1, name: '', type: default, offset: -4, size: 4, alignment: 4 |
| # CHECK-NEXT: stack-id: default |
| # CHECK-NEXT: local-offset: -68 |
| stack: |
| - { id: 0, size: 4, alignment: 64, local-offset: -64 } |
| - { id: 1, size: 4, alignment: 4, local-offset: -68 } |
| |
| # CHECK: body: |
| # CHECK: $sp = frame-setup ANDXri killed ${{x[0-9]+}}, 7865 |
| # CHECK: STRSui $s0, $sp, 0 |
| # CHECK: STRSui $s0, $fp, 7 |
| body: | |
| bb.0.entry: |
| liveins: $s0 |
| |
| STRSui $s0, %stack.0, 0 |
| STRSui $s0, %stack.1, 0 |
| ; Force preserve a CSR to create a hole in the CSR stack region. |
| $x28 = IMPLICIT_DEF |
| RET_ReallyLR |