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1# RUN: llc -mtriple=aarch64-none-linux-gnu -start-before=greedy -stop-after=prologepilog %s -o - | FileCheck %s2...3# Ensure that an object with a different stack-id is not allocated to a4# callee-save slot using stack-slot scavenging. This test saves X28 which5# creates a hole in the CSR stack region, but it should not be saved to.6# Instead of saving to SP + 1 (which would be the hole in the region), it7# should save to SP + 2 (since AArch64 codegen currently does not support8# (and thus allocate) objects with a stack-id > 0).9name: test_no_stackslot_scavenging10# CHECK: name: test_no_stackslot_scavenging11# CHECK: STRXui $x0, $sp, 212tracksRegLiveness: true13frameInfo:14 maxAlignment: 1615stack:16 - { id: 0, stack-id: noalloc, size: 8, alignment: 8 }17body: |18 bb.0.entry:19 liveins: $x020 STRXui $x0, %stack.0, 021 ; Force preserve a CSR to create a hole in the CSR stack region.22 $x28 = IMPLICIT_DEF23 RET_ReallyLR24---25