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#RUN: llc -mtriple=aarch64-- -run-pass prologepilog %s -o - | FileCheck %s
# Check that we use the frame pointer to address the emergency spill slot.
# Using the base pointer will result in an assert with "Emergency spill slot is
# out of reach".
---
name: hugeStack
# CHECK-LABEL: name: hugeStack
tracksRegLiveness: true
frameInfo:
localFrameSize: 256
stack:
- { id: 0, type: variable-sized, alignment: 1 }
- { id: 1, name: '', size: 32761, alignment: 8 }
body: |
bb.0:
liveins: $x19, $x20, $x21, $x22, $x23, $x24, $x25, $x26, $x27, $x28
STRXui undef $x8, %stack.0, 0
; CHECK: STRXui undef $x8, $fp, 0
B %bb.1
bb.1:
liveins: $x19, $x20, $x21, $x22, $x23, $x24, $x25, $x26, $x27, $x28
RET_ReallyLR implicit $x19, implicit $x20, implicit $x21, implicit $x22, implicit $x23, implicit $x24, implicit $x25, implicit $x26, implicit $x27, implicit $x28
...
---
name: fpDoesNotFit
# CHECK-LABEL: name: fpDoesNotFit
tracksRegLiveness: true
frameInfo:
hasStackMap: true
# set to true to force hasFP to true.
stack:
- { id: 0, name: '', size: 4096, alignment: 8 }
- { id: 1, name: '', size: 32761, alignment: 8 }
body: |
bb.0:
STRXui undef $x8, %stack.0, -34
; Pick SP here. Picking FP will require scavenging a register.
; CHECK: STRXui undef $x8, $sp, 4062
RET_ReallyLR
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