blob: 69b9ce9faf164ee90982cf3c31e11f1c6bd892dd [file] [log] [blame]
# RUN: llc -mtriple=aarch64-none-linux-gnu -start-before=greedy -stop-after=prologepilog %s -o - | FileCheck %s
# Ensure that an object with a different stack-id is not allocated to a
# callee-save slot using stack-slot scavenging. This test saves X28 which
# creates a hole in the CSR stack region, but it should not be saved to.
# Instead of saving to SP + 1 (which would be the hole in the region), it
# should save to SP + 2 (since AArch64 codegen currently does not support
# (and thus allocate) objects with a stack-id > 0).
name: test_no_stackslot_scavenging
# CHECK: name: test_no_stackslot_scavenging
# CHECK: STRXui $x0, $sp, 2
tracksRegLiveness: true
maxAlignment: 16
- { id: 0, stack-id: noalloc, size: 8, alignment: 8 }
body: |
liveins: $x0
STRXui $x0, %stack.0, 0
; Force preserve a CSR to create a hole in the CSR stack region.