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| #RUN: llc -mtriple=aarch64-- -run-pass prologepilog %s -o - | FileCheck %s
# Check that we spill a scratch register, but not also an additional
# emergency spill slot.
---
name: big_stack
# CHECK-LABEL: name: big_stack
# CHECK: frame-setup STPXi killed $x20, killed $x19
# CHECK: $sp = frame-setup SUBXri $sp, 8, 12
# CHECK-NOT: frame-setup SUBXri $sp, 16, 0
tracksRegLiveness: true
stack:
- { id: 0, name: '', size: 32761, alignment: 8 }
body: |
bb.0:
$x19 = IMPLICIT_DEF
; $x20 can be used as scratch register.
$x21 = IMPLICIT_DEF
$x22 = IMPLICIT_DEF
$x23 = IMPLICIT_DEF
$x24 = IMPLICIT_DEF
$x25 = IMPLICIT_DEF
$x26 = IMPLICIT_DEF
$x27 = IMPLICIT_DEF
$x28 = IMPLICIT_DEF
$lr = IMPLICIT_DEF
$fp = IMPLICIT_DEF
RET_ReallyLR
...
|