RPCS3/llvm-mirror
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-11-26 04:32:44 +01:00
Code Issues Projects Releases Wiki Activity
f2b2682fd1
llvm-mirror/test/CodeGen/AArch64/wineh8.mir
Sanjin Sijaric fc413edf7f [ARM64][Windows] Share unwind codes between epilogues 
There are cases where we have multiple epilogues that have the exact same unwind
code sequence.  In that case, the epilogues can share the same unwind codes in
the .xdata section.  This should get us past the assert "SEH unwind data
splitting not yet implemented" in many cases.

We still need to add support for generating multiple .pdata/.xdata sections for
those functions that need to be split into fragments.

Differential Revision: https://reviews.llvm.org/D56813

llvm-svn: 351421
2019-01-17 09:45:17 +00:00

226 lines
11 KiB
YAML
Raw Blame History

# RUN: llc -o - %s -mtriple=aarch64-windows -start-after=prologepilog \
# RUN: -disable-branch-fold -filetype=obj \
# RUN: | llvm-readobj -unwind | FileCheck %s
# Check that non-identical multiple epilgoues are correctly shared in .xdata.
# CHECK: ExceptionData {
# CHECK-NEXT: FunctionLength: 160
# CHECK-NEXT: Version: 0
# CHECK-NEXT: ExceptionData: No
# CHECK-NEXT: EpiloguePacked: No
# CHECK-NEXT: EpilogueScopes: 2
# CHECK-NEXT: ByteCodeLength: 44
# CHECK-NEXT: Prologue [
# CHECK-NEXT: 0xc80c ; stp x19, x20, [sp, #96]
# CHECK-NEXT: 0xc88a ; stp x21, x22, [sp, #80]
# CHECK-NEXT: 0xc908 ; stp x23, x24, [sp, #64]
# CHECK-NEXT: 0xc986 ; stp x25, x26, [sp, #48]
# CHECK-NEXT: 0xca04 ; stp x27, x28, [sp, #32]
# CHECK-NEXT: 0xd802 ; stp d8, d9, [sp, #16]
# CHECK-NEXT: 0xda8d ; stp d10, d11, [sp, #-112]!
# CHECK-NEXT: 0xe4 ; end
# CHECK-NEXT: ]
# CHECK-NEXT: EpilogueScopes [
# CHECK-NEXT: EpilogueScope {
# CHECK-NEXT: StartOffset: 16
# CHECK-NEXT: EpilogueStartIndex: 15
# CHECK-NEXT: Opcodes [
# CHECK-NEXT: 0xc80c ; ldp x19, x20, [sp, #96]
# CHECK-NEXT: 0xc88a ; ldp x21, x22, [sp, #80]
# CHECK-NEXT: 0xc908 ; ldp x23, x24, [sp, #64]
# CHECK-NEXT: 0xc986 ; ldp x25, x26, [sp, #48]
# CHECK-NEXT: 0xd802 ; ldp d8, d9, [sp, #16]
# CHECK-NEXT: 0xda8d ; ldp d10, d11, [sp], #112
# CHECK-NEXT: 0xe4 ; end
# CHECK-NEXT: ]
# CHECK-NEXT: }
# CHECK-NEXT: EpilogueScope {
# CHECK-NEXT: StartOffset: 32
# CHECK-NEXT: EpilogueStartIndex: 28
# CHECK-NEXT: Opcodes [
# CHECK-NEXT: 0xc80c ; ldp x19, x20, [sp, #96]
# CHECK-NEXT: 0xc88a ; ldp x21, x22, [sp, #80]
# CHECK-NEXT: 0xc908 ; ldp x23, x24, [sp, #64]
# CHECK-NEXT: 0xc986 ; ldp x25, x26, [sp, #48]
# CHECK-NEXT: 0xca04 ; ldp x27, x28, [sp, #32]
# CHECK-NEXT: 0xd802 ; ldp d8, d9, [sp, #16]
# CHECK-NEXT: 0xda8d ; ldp d10, d11, [sp], #112
# CHECK-NEXT: 0xe4 ; end
# CHECK-NEXT: ]
# CHECK-NEXT: }
# CHECK-NEXT: ]
# CHECK-NEXT: }
...
---
name: test
alignment: 2
exposesReturnsTwice: false
legalized: false
regBankSelected: false
selected: false
failedISel: false
tracksRegLiveness: true
hasWinCFI: true
registers:
liveins:
- { reg: '$w0', virtual-reg: '' }
frameInfo:
isFrameAddressTaken: false
isReturnAddressTaken: false
hasStackMap: false
hasPatchPoint: false
stackSize: 112
offsetAdjustment: 0
maxAlignment: 8
adjustsStack: false
hasCalls: false
stackProtector: ''
maxCallFrameSize: 0
hasOpaqueSPAdjustment: true
hasVAStart: false
hasMustTailInVarArgFunc: false
localFrameSize: 0
savePoint: ''
restorePoint: ''
fixedStack:
stack:
- { id: 0, name: '', type: spill-slot, offset: -8, size: 8, alignment: 8,
stack-id: 0, callee-saved-register: '$x19', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
- { id: 1, name: '', type: spill-slot, offset: -16, size: 8, alignment: 8,
stack-id: 0, callee-saved-register: '$x20', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
- { id: 2, name: '', type: spill-slot, offset: -24, size: 8, alignment: 8,
stack-id: 0, callee-saved-register: '$x21', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
- { id: 3, name: '', type: spill-slot, offset: -32, size: 8, alignment: 8,
stack-id: 0, callee-saved-register: '$x22', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
- { id: 4, name: '', type: spill-slot, offset: -40, size: 8, alignment: 8,
stack-id: 0, callee-saved-register: '$x23', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
- { id: 5, name: '', type: spill-slot, offset: -48, size: 8, alignment: 8,
stack-id: 0, callee-saved-register: '$x24', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
- { id: 6, name: '', type: spill-slot, offset: -56, size: 8, alignment: 8,
stack-id: 0, callee-saved-register: '$x25', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
- { id: 7, name: '', type: spill-slot, offset: -64, size: 8, alignment: 8,
stack-id: 0, callee-saved-register: '$x26', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
- { id: 8, name: '', type: spill-slot, offset: -72, size: 8, alignment: 8,
stack-id: 0, callee-saved-register: '$x27', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
- { id: 9, name: '', type: spill-slot, offset: -80, size: 8, alignment: 8,
stack-id: 0, callee-saved-register: '$x28', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
- { id: 10, name: '', type: spill-slot, offset: -88, size: 8, alignment: 8,
stack-id: 0, callee-saved-register: '$d8', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
- { id: 11, name: '', type: spill-slot, offset: -96, size: 8, alignment: 8,
stack-id: 0, callee-saved-register: '$d9', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
- { id: 12, name: '', type: spill-slot, offset: -104, size: 8, alignment: 8,
stack-id: 0, callee-saved-register: '$d10', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
- { id: 13, name: '', type: spill-slot, offset: -112, size: 8, alignment: 8,
stack-id: 0, callee-saved-register: '$d11', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
constants:
body: |
bb.0.entry:
successors: %bb.2(0x40000000), %bb.1(0x40000000)
liveins: $x0, $x1, $d0, $d1, $d10, $d11, $d8, $d9, $x27, $x28, $x25, $x26, $x23, $x24, $x21, $x22, $x19, $x20
early-clobber $sp = frame-setup STPDpre killed $d10, killed $d11, $sp, -14 :: (store 8 into %stack.12), (store 8 into %stack.13)
frame-setup SEH_SaveFRegP_X 10, 11, -112
frame-setup STPDi killed $d8, killed $d9, $sp, 2 :: (store 8 into %stack.10), (store 8 into %stack.11)
frame-setup SEH_SaveFRegP 8, 9, 16
frame-setup STPXi killed $x27, killed $x28, $sp, 4 :: (store 8 into %stack.8), (store 8 into %stack.9)
frame-setup SEH_SaveRegP 27, 28, 32
frame-setup STPXi killed $x25, killed $x26, $sp, 6 :: (store 8 into %stack.6), (store 8 into %stack.7)
frame-setup SEH_SaveRegP 25, 26, 48
frame-setup STPXi killed $x23, killed $x24, $sp, 8 :: (store 8 into %stack.4), (store 8 into %stack.5)
frame-setup SEH_SaveRegP 23, 24, 64
frame-setup STPXi killed $x21, killed $x22, $sp, 10 :: (store 8 into %stack.2), (store 8 into %stack.3)
frame-setup SEH_SaveRegP 21, 22, 80
frame-setup STPXi killed $x19, killed $x20, $sp, 12 :: (store 8 into %stack.0), (store 8 into %stack.1)
frame-setup SEH_SaveRegP 19, 20, 96
frame-setup SEH_PrologEnd
frame-setup CFI_INSTRUCTION def_cfa_offset 112
frame-setup CFI_INSTRUCTION offset $w19, -8
frame-setup CFI_INSTRUCTION offset $w20, -16
frame-setup CFI_INSTRUCTION offset $w21, -24
frame-setup CFI_INSTRUCTION offset $w22, -32
frame-setup CFI_INSTRUCTION offset $w23, -40
frame-setup CFI_INSTRUCTION offset $w24, -48
frame-setup CFI_INSTRUCTION offset $w25, -56
frame-setup CFI_INSTRUCTION offset $w26, -64
frame-setup CFI_INSTRUCTION offset $w27, -72
frame-setup CFI_INSTRUCTION offset $w28, -80
frame-setup CFI_INSTRUCTION offset $b8, -88
frame-setup CFI_INSTRUCTION offset $b9, -96
frame-setup CFI_INSTRUCTION offset $b10, -104
frame-setup CFI_INSTRUCTION offset $b11, -112
$x19 = ADDXrr $x0, killed $x1
$d8 = FADDDrr killed $d0, $d1
$d9 = FADDDrr $d8, $d1
$d10 = FADDDrr $d9, $d8
$d11 = FADDDrr killed $d9, $d10
$x20 = SUBSXrr $x19, killed $x0, implicit-def $nzcv
Bcc 1, %bb.2, implicit killed $nzcv
B %bb.1
bb.1:
liveins: $x19, $x20
$x21 = ADDXrr $x20, killed $x19
$x22 = ADDXrr $x21, killed $x20
$x23 = ADDXrr $x22, killed $x21
$x24 = ADDXrr $x23, killed $x22
$x25 = ADDXrr $x24, killed $x23
$x26 = ADDXrr $x25, killed $x24
$x27 = ADDXrr $x26, killed $x25
$x28 = ADDXrr $x27, killed $x26
$x0 = COPY $x28
frame-destroy SEH_EpilogStart
$x19, $x20 = frame-destroy LDPXi $sp, 12 :: (load 8 from %stack.0), (load 8 from %stack.1)
frame-destroy SEH_SaveRegP 19, 20, 96
$x21, $x22 = frame-destroy LDPXi $sp, 10 :: (load 8 from %stack.2), (load 8 from %stack.3)
frame-destroy SEH_SaveRegP 21, 22, 80
$x23, $x24 = frame-destroy LDPXi $sp, 8 :: (load 8 from %stack.4), (load 8 from %stack.5)
frame-destroy SEH_SaveRegP 23, 24, 64
$x25, $x26 = frame-destroy LDPXi $sp, 6 :: (load 8 from %stack.6), (load 8 from %stack.7)
frame-destroy SEH_SaveRegP 25, 26, 48
$x27, $x28 = frame-destroy LDPXi $sp, 4 :: (load 8 from %stack.8), (load 8 from %stack.9)
frame-destroy SEH_SaveRegP 27, 28, 32
$d8, $d9 = frame-destroy LDPDi $sp, 2 :: (load 8 from %stack.10), (load 8 from %stack.11)
frame-destroy SEH_SaveFRegP 8, 9, 16
early-clobber $sp, $d10, $d11 = frame-destroy LDPDpost $sp, 14 :: (load 8 from %stack.12), (load 8 from %stack.13)
frame-destroy SEH_SaveFRegP_X 10, 11, -112
frame-destroy SEH_EpilogEnd
RET_ReallyLR implicit $x0
bb.2:
liveins: $x28, $d11
$x0 = COPY $d11
$x0 = ADDXrr $x0, killed $x28
frame-destroy SEH_EpilogStart
$x19, $x20 = frame-destroy LDPXi $sp, 12 :: (load 8 from %stack.0), (load 8 from %stack.1)
frame-destroy SEH_SaveRegP 19, 20, 96
$x21, $x22 = frame-destroy LDPXi $sp, 10 :: (load 8 from %stack.2), (load 8 from %stack.3)
frame-destroy SEH_SaveRegP 21, 22, 80
$x23, $x24 = frame-destroy LDPXi $sp, 8 :: (load 8 from %stack.4), (load 8 from %stack.5)
frame-destroy SEH_SaveRegP 23, 24, 64
$x25, $x26 = frame-destroy LDPXi $sp, 6 :: (load 8 from %stack.6), (load 8 from %stack.7)
frame-destroy SEH_SaveRegP 25, 26, 48
$d8, $d9 = frame-destroy LDPDi $sp, 2 :: (load 8 from %stack.10), (load 8 from %stack.11)
frame-destroy SEH_SaveFRegP 8, 9, 16
early-clobber $sp, $d10, $d11 = frame-destroy LDPDpost $sp, 14 :: (load 8 from %stack.12), (load 8 from %stack.13)
frame-destroy SEH_SaveFRegP_X 10, 11, -112
frame-destroy SEH_EpilogEnd
RET_ReallyLR implicit $x0
...
Reference in New Issue View Git Blame Copy Permalink