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llvm-mirror/test/CodeGen/AArch64/cfi_restore.mir
Matt Arsenault cc12b285b6 CodeGen: Print/parse LLTs in MachineMemOperands
This will currently accept the old number of bytes syntax, and convert
it to a scalar. This should be removed in the near future (I think I
converted all of the tests already, but likely missed a few).

Not sure what the exact syntax and policy should be. We can continue
printing the number of bytes for non-generic instructions to avoid
test churn and only allow non-scalar types for generic instructions.

This will currently print the LLT in parentheses, but accept parsing
the existing integers and implicitly converting to scalar. The
parentheses are a bit ugly, but the parser logic seems unable to deal
without either parentheses or some keyword to indicate the start of a
type.
2021-06-30 16:54:13 -04:00

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YAML

# RUN: llc -mtriple=aarch64-- -start-after prologepilog -o - %s | FileCheck %s
---
name: fun
# CHECK: .cfi_startproc
tracksRegLiveness: true
frameInfo:
stackSize: 16
maxAlignment: 8
hasCalls: true
stack:
- { id: 0, type: spill-slot, offset: -8, size: 8, alignment: 8, stack-id: default,
callee-saved-register: '$lr' }
- { id: 1, type: spill-slot, offset: -16, size: 8, alignment: 8, stack-id: default,
callee-saved-register: '$fp' }
body: |
bb.0:
liveins: $fp, $lr
$sp = frame-setup SUBXri $sp, 16, 0
frame-setup STRXui killed $fp, $sp, 0 :: (store (s64) into %stack.1)
frame-setup CFI_INSTRUCTION offset $w29, -16
; CHECK: .cfi_offset w29, -16
frame-setup STRXui killed $lr, $sp, 1 :: (store (s64) into %stack.0)
frame-setup CFI_INSTRUCTION offset $w30, -8
; CHECK: .cfi_offset w30, -8
$fp = frame-setup ADDXri $sp, 0, 0
frame-setup CFI_INSTRUCTION def_cfa $w29, 16
$lr = LDRXui $sp, 1 :: (load (s64) from %stack.0)
CFI_INSTRUCTION restore $w30
; CHECK: .cfi_restore w30
$fp = LDRXui $sp, 0 :: (load (s64) from %stack.1)
CFI_INSTRUCTION restore $w29
; CHECK: .cfi_restore w29
$sp = ADDXri $sp, 16, 0
RET_ReallyLR
; CHECK: .cfi_endproc
...