llvm-mirror/test/CodeGen/AArch64/wineh-frame4.mir
Sanjin Sijaric a41bbe57fe [ARM64] [Windows] Exception handling support in frame lowering
Emit pseudo instructions indicating unwind codes corresponding to each
instruction inside the prologue/epilogue.  These are used by the MCLayer to
populate the .xdata section.

Differential Revision: https://reviews.llvm.org/D50288

llvm-svn: 345701
2018-10-31 09:27:01 +00:00

60 lines
1.7 KiB
YAML

# RUN: llc -o - %s -mtriple=aarch64-windows -start-before=prologepilog \
# RUN: -stop-after=prologepilog | FileCheck %s
# Check save_freg_x, save_freg
# CHECK: early-clobber $sp = frame-setup STRDpre killed $d10, $sp, -16
# CHECK-NEXT: frame-setup SEH_SaveFReg_X 10, -16
# CHECK-NEXT: frame-setup STRDui killed $d8, $sp, 1 :: (store 8 into %stack.0)
# CHECK-NEXT: frame-setup SEH_SaveFReg 8, 8
# CHECK-NEXT: frame-setup SEH_PrologEnd
# CHECK: frame-destroy SEH_EpilogStart
# CHECK-NEXT: $d8 = frame-destroy LDRDui $sp, 1 :: (load 8 from %stack.0)
# CHECK-NEXT: frame-destroy SEH_SaveFReg 8, 8
# CHECK-NEXT: early-clobber $sp, $d10 = frame-destroy LDRDpost $sp, 16 :: (load 8 from %stack.1)
# CHECK-NEXT: frame-destroy SEH_SaveFReg_X 10, -16
# CHECK-NEXT: frame-destroy SEH_EpilogEnd
# CHECK-NEXT: RET_ReallyLR implicit $x0
...
---
name: test
alignment: 2
exposesReturnsTwice: false
legalized: false
regBankSelected: false
selected: false
failedISel: false
tracksRegLiveness: true
hasWinCFI: true
registers:
liveins:
- { reg: '$w0', virtual-reg: '' }
frameInfo:
isFrameAddressTaken: false
isReturnAddressTaken: false
hasStackMap: false
hasPatchPoint: false
stackSize: 112
offsetAdjustment: 0
maxAlignment: 8
adjustsStack: false
hasCalls: false
stackProtector: ''
maxCallFrameSize: 0
hasOpaqueSPAdjustment: true
hasVAStart: false
hasMustTailInVarArgFunc: false
localFrameSize: 0
savePoint: ''
restorePoint: ''
fixedStack:
stack:
constants:
body: |
bb.0.entry:
liveins: $d0, $d1
$d8 = FADDDrr $d0, killed $d1
$d10 = FADDDrr killed $d8, $d0
$x0 = COPY killed $d10
RET_ReallyLR implicit $x0
...