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| # 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 = 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
|