<div dir="ltr"><div dir="ltr">Hello Sanjin,<br><br>This commit broke test on the next builder:<br><a href="http://lab.llvm.org:8011/builders/llvm-clang-x86_64-expensive-checks-win">http://lab.llvm.org:8011/builders/llvm-clang-x86_64-expensive-checks-win</a><br>. . .<br>Failing Tests (1):<br> LLVM :: CodeGen/AArch64/wineh4.mir<br><br>Please have a look?<br>The builder was already red and did not send notifications on this.<br><br>Thanks<br><br>Galina<br></div></div><br><div class="gmail_quote"><div dir="ltr">On Thu, Jan 17, 2019 at 1:49 AM Sanjin Sijaric via llvm-commits <<a href="mailto:llvm-commits@lists.llvm.org">llvm-commits@lists.llvm.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Author: ssijaric<br>
Date: Thu Jan 17 01:45:17 2019<br>
New Revision: 351421<br>
<br>
URL: <a href="http://llvm.org/viewvc/llvm-project?rev=351421&view=rev" rel="noreferrer" target="_blank">http://llvm.org/viewvc/llvm-project?rev=351421&view=rev</a><br>
Log:<br>
[ARM64][Windows] Share unwind codes between epilogues<br>
<br>
There are cases where we have multiple epilogues that have the exact same unwind<br>
code sequence. In that case, the epilogues can share the same unwind codes in<br>
the .xdata section. This should get us past the assert "SEH unwind data<br>
splitting not yet implemented" in many cases.<br>
<br>
We still need to add support for generating multiple .pdata/.xdata sections for<br>
those functions that need to be split into fragments.<br>
<br>
Differential Revision: <a href="https://reviews.llvm.org/D56813" rel="noreferrer" target="_blank">https://reviews.llvm.org/D56813</a><br>
<br>
Added:<br>
llvm/trunk/test/CodeGen/AArch64/wineh8.mir<br>
Modified:<br>
llvm/trunk/lib/MC/MCWin64EH.cpp<br>
llvm/trunk/test/CodeGen/AArch64/wineh4.mir<br>
<br>
Modified: llvm/trunk/lib/MC/MCWin64EH.cpp<br>
URL: <a href="http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/MC/MCWin64EH.cpp?rev=351421&r1=351420&r2=351421&view=diff" rel="noreferrer" target="_blank">http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/MC/MCWin64EH.cpp?rev=351421&r1=351420&r2=351421&view=diff</a><br>
==============================================================================<br>
--- llvm/trunk/lib/MC/MCWin64EH.cpp (original)<br>
+++ llvm/trunk/lib/MC/MCWin64EH.cpp Thu Jan 17 01:45:17 2019<br>
@@ -453,6 +453,38 @@ static void ARM64EmitUnwindCode(MCStream<br>
}<br>
}<br>
<br>
+// Returns the epilog symbol of an epilog with the exact same unwind code<br>
+// sequence, if it exists. Otherwise, returns nulltpr.<br>
+// EpilogInstrs - Unwind codes for the current epilog.<br>
+// Epilogs - Epilogs that potentialy match the current epilog.<br>
+static MCSymbol*<br>
+FindMatchingEpilog(const std::vector<WinEH::Instruction>& EpilogInstrs,<br>
+ const std::vector<MCSymbol *>& Epilogs,<br>
+ const WinEH::FrameInfo *info) {<br>
+ for (auto *EpilogStart : Epilogs) {<br>
+ auto InstrsIter = info->EpilogMap.find(EpilogStart);<br>
+ assert(InstrsIter != info->EpilogMap.end() &&<br>
+ "Epilog not found in EpilogMap");<br>
+ const auto &Instrs = InstrsIter->second;<br>
+<br>
+ if (Instrs.size() != EpilogInstrs.size())<br>
+ continue;<br>
+<br>
+ bool Match = true;<br>
+ for (unsigned i = 0; i < Instrs.size(); ++i)<br>
+ if (Instrs[i].Operation != EpilogInstrs[i].Operation ||<br>
+ Instrs[i].Offset != EpilogInstrs[i].Offset ||<br>
+ Instrs[i].Register != EpilogInstrs[i].Register) {<br>
+ Match = false;<br>
+ break;<br>
+ }<br>
+<br>
+ if (Match)<br>
+ return EpilogStart;<br>
+ }<br>
+ return nullptr;<br>
+}<br>
+<br>
// Populate the .xdata section. The format of .xdata on ARM64 is documented at<br>
// <a href="https://docs.microsoft.com/en-us/cpp/build/arm64-exception-handling" rel="noreferrer" target="_blank">https://docs.microsoft.com/en-us/cpp/build/arm64-exception-handling</a><br>
static void ARM64EmitUnwindInfo(MCStreamer &streamer, WinEH::FrameInfo *info) {<br>
@@ -477,12 +509,29 @@ static void ARM64EmitUnwindInfo(MCStream<br>
<br>
// Process epilogs.<br>
MapVector<MCSymbol *, uint32_t> EpilogInfo;<br>
+ // Epilogs processed so far.<br>
+ std::vector<MCSymbol *> AddedEpilogs;<br>
+<br>
for (auto &I : info->EpilogMap) {<br>
MCSymbol *EpilogStart = I.first;<br>
auto &EpilogInstrs = I.second;<br>
uint32_t CodeBytes = ARM64CountOfUnwindCodes(EpilogInstrs);<br>
- EpilogInfo[EpilogStart] = TotalCodeBytes;<br>
- TotalCodeBytes += CodeBytes;<br>
+<br>
+ uint32_t NumUnwindCodes = EpilogInstrs.size();<br>
+ MCSymbol* MatchingEpilog =<br>
+ FindMatchingEpilog(EpilogInstrs, AddedEpilogs, info);<br>
+ if (MatchingEpilog) {<br>
+ assert(EpilogInfo.find(MatchingEpilog) != EpilogInfo.end() &&<br>
+ "Duplicate epilog not found");<br>
+ EpilogInfo[EpilogStart] = EpilogInfo[MatchingEpilog];<br>
+ // Clear the unwind codes in the EpilogMap, so that they don't get output<br>
+ // in the logic below.<br>
+ EpilogInstrs.clear();<br>
+ } else {<br>
+ EpilogInfo[EpilogStart] = TotalCodeBytes;<br>
+ TotalCodeBytes += CodeBytes;<br>
+ AddedEpilogs.push_back(EpilogStart);<br>
+ }<br>
}<br>
<br>
// Code Words, Epilog count, E, X, Vers, Function Length<br>
<br>
Modified: llvm/trunk/test/CodeGen/AArch64/wineh4.mir<br>
URL: <a href="http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/AArch64/wineh4.mir?rev=351421&r1=351420&r2=351421&view=diff" rel="noreferrer" target="_blank">http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/AArch64/wineh4.mir?rev=351421&r1=351420&r2=351421&view=diff</a><br>
==============================================================================<br>
--- llvm/trunk/test/CodeGen/AArch64/wineh4.mir (original)<br>
+++ llvm/trunk/test/CodeGen/AArch64/wineh4.mir Thu Jan 17 01:45:17 2019<br>
@@ -1,7 +1,7 @@<br>
# RUN: llc -o - %s -mtriple=aarch64-windows -start-after=prologepilog \<br>
# RUN: -disable-branch-fold -filetype=obj \<br>
# RUN: | llvm-readobj -unwind | FileCheck %s<br>
-# Check that multiple epilgoues are correctly placed in .xdata.<br>
+# Check that identical multiple epilgoues are correctly shared in .xdata.<br>
<br>
# CHECK: ExceptionData {<br>
# CHECK-NEXT: FunctionLength: 164<br>
@@ -9,7 +9,7 @@<br>
# CHECK-NEXT: ExceptionData: No<br>
# CHECK-NEXT: EpiloguePacked: No<br>
# CHECK-NEXT: EpilogueScopes: 2<br>
-# CHECK-NEXT: ByteCodeLength: 48<br>
+# CHECK-NEXT: ByteCodeLength: 32<br>
# CHECK-NEXT: Prologue [<br>
# CHECK-NEXT: 0xc80c ; stp x19, x20, [sp, #96]<br>
# CHECK-NEXT: 0xc88a ; stp x21, x22, [sp, #80]<br>
@@ -37,7 +37,7 @@<br>
# CHECK-NEXT: }<br>
# CHECK-NEXT: EpilogueScope {<br>
# CHECK-NEXT: StartOffset: 33<br>
-# CHECK-NEXT: EpilogueStartIndex: 30<br>
+# CHECK-NEXT: EpilogueStartIndex: 15<br>
# CHECK-NEXT: Opcodes [<br>
# CHECK-NEXT: 0xc80c ; ldp x19, x20, [sp, #96]<br>
# CHECK-NEXT: 0xc88a ; ldp x21, x22, [sp, #80]<br>
<br>
Added: llvm/trunk/test/CodeGen/AArch64/wineh8.mir<br>
URL: <a href="http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/AArch64/wineh8.mir?rev=351421&view=auto" rel="noreferrer" target="_blank">http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/AArch64/wineh8.mir?rev=351421&view=auto</a><br>
==============================================================================<br>
--- llvm/trunk/test/CodeGen/AArch64/wineh8.mir (added)<br>
+++ llvm/trunk/test/CodeGen/AArch64/wineh8.mir Thu Jan 17 01:45:17 2019<br>
@@ -0,0 +1,225 @@<br>
+# RUN: llc -o - %s -mtriple=aarch64-windows -start-after=prologepilog \<br>
+# RUN: -disable-branch-fold -filetype=obj \<br>
+# RUN: | llvm-readobj -unwind | FileCheck %s<br>
+# Check that non-identical multiple epilgoues are correctly shared in .xdata.<br>
+<br>
+# CHECK: ExceptionData {<br>
+# CHECK-NEXT: FunctionLength: 160<br>
+# CHECK-NEXT: Version: 0<br>
+# CHECK-NEXT: ExceptionData: No<br>
+# CHECK-NEXT: EpiloguePacked: No<br>
+# CHECK-NEXT: EpilogueScopes: 2<br>
+# CHECK-NEXT: ByteCodeLength: 44<br>
+# CHECK-NEXT: Prologue [<br>
+# CHECK-NEXT: 0xc80c ; stp x19, x20, [sp, #96]<br>
+# CHECK-NEXT: 0xc88a ; stp x21, x22, [sp, #80]<br>
+# CHECK-NEXT: 0xc908 ; stp x23, x24, [sp, #64]<br>
+# CHECK-NEXT: 0xc986 ; stp x25, x26, [sp, #48]<br>
+# CHECK-NEXT: 0xca04 ; stp x27, x28, [sp, #32]<br>
+# CHECK-NEXT: 0xd802 ; stp d8, d9, [sp, #16]<br>
+# CHECK-NEXT: 0xda8d ; stp d10, d11, [sp, #-112]!<br>
+# CHECK-NEXT: 0xe4 ; end<br>
+# CHECK-NEXT: ]<br>
+# CHECK-NEXT: EpilogueScopes [<br>
+# CHECK-NEXT: EpilogueScope {<br>
+# CHECK-NEXT: StartOffset: 16<br>
+# CHECK-NEXT: EpilogueStartIndex: 15<br>
+# CHECK-NEXT: Opcodes [<br>
+# CHECK-NEXT: 0xc80c ; ldp x19, x20, [sp, #96]<br>
+# CHECK-NEXT: 0xc88a ; ldp x21, x22, [sp, #80]<br>
+# CHECK-NEXT: 0xc908 ; ldp x23, x24, [sp, #64]<br>
+# CHECK-NEXT: 0xc986 ; ldp x25, x26, [sp, #48]<br>
+# CHECK-NEXT: 0xd802 ; ldp d8, d9, [sp, #16]<br>
+# CHECK-NEXT: 0xda8d ; ldp d10, d11, [sp], #112<br>
+# CHECK-NEXT: 0xe4 ; end<br>
+# CHECK-NEXT: ]<br>
+# CHECK-NEXT: }<br>
+# CHECK-NEXT: EpilogueScope {<br>
+# CHECK-NEXT: StartOffset: 32<br>
+# CHECK-NEXT: EpilogueStartIndex: 28<br>
+# CHECK-NEXT: Opcodes [<br>
+# CHECK-NEXT: 0xc80c ; ldp x19, x20, [sp, #96]<br>
+# CHECK-NEXT: 0xc88a ; ldp x21, x22, [sp, #80]<br>
+# CHECK-NEXT: 0xc908 ; ldp x23, x24, [sp, #64]<br>
+# CHECK-NEXT: 0xc986 ; ldp x25, x26, [sp, #48]<br>
+# CHECK-NEXT: 0xca04 ; ldp x27, x28, [sp, #32]<br>
+# CHECK-NEXT: 0xd802 ; ldp d8, d9, [sp, #16]<br>
+# CHECK-NEXT: 0xda8d ; ldp d10, d11, [sp], #112<br>
+# CHECK-NEXT: 0xe4 ; end<br>
+# CHECK-NEXT: ]<br>
+# CHECK-NEXT: }<br>
+# CHECK-NEXT: ]<br>
+# CHECK-NEXT: }<br>
+...<br>
+---<br>
+name: test<br>
+alignment: 2<br>
+exposesReturnsTwice: false<br>
+legalized: false<br>
+regBankSelected: false<br>
+selected: false<br>
+failedISel: false<br>
+tracksRegLiveness: true<br>
+hasWinCFI: true<br>
+registers:<br>
+liveins:<br>
+ - { reg: '$w0', virtual-reg: '' }<br>
+frameInfo:<br>
+ isFrameAddressTaken: false<br>
+ isReturnAddressTaken: false<br>
+ hasStackMap: false<br>
+ hasPatchPoint: false<br>
+ stackSize: 112<br>
+ offsetAdjustment: 0<br>
+ maxAlignment: 8<br>
+ adjustsStack: false<br>
+ hasCalls: false<br>
+ stackProtector: ''<br>
+ maxCallFrameSize: 0<br>
+ hasOpaqueSPAdjustment: true<br>
+ hasVAStart: false<br>
+ hasMustTailInVarArgFunc: false<br>
+ localFrameSize: 0<br>
+ savePoint: ''<br>
+ restorePoint: ''<br>
+fixedStack:<br>
+stack:<br>
+ - { id: 0, name: '', type: spill-slot, offset: -8, size: 8, alignment: 8,<br>
+ stack-id: 0, callee-saved-register: '$x19', callee-saved-restored: true,<br>
+ debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }<br>
+ - { id: 1, name: '', type: spill-slot, offset: -16, size: 8, alignment: 8,<br>
+ stack-id: 0, callee-saved-register: '$x20', callee-saved-restored: true,<br>
+ debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }<br>
+ - { id: 2, name: '', type: spill-slot, offset: -24, size: 8, alignment: 8,<br>
+ stack-id: 0, callee-saved-register: '$x21', callee-saved-restored: true,<br>
+ debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }<br>
+ - { id: 3, name: '', type: spill-slot, offset: -32, size: 8, alignment: 8,<br>
+ stack-id: 0, callee-saved-register: '$x22', callee-saved-restored: true,<br>
+ debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }<br>
+ - { id: 4, name: '', type: spill-slot, offset: -40, size: 8, alignment: 8,<br>
+ stack-id: 0, callee-saved-register: '$x23', callee-saved-restored: true,<br>
+ debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }<br>
+ - { id: 5, name: '', type: spill-slot, offset: -48, size: 8, alignment: 8,<br>
+ stack-id: 0, callee-saved-register: '$x24', callee-saved-restored: true,<br>
+ debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }<br>
+ - { id: 6, name: '', type: spill-slot, offset: -56, size: 8, alignment: 8,<br>
+ stack-id: 0, callee-saved-register: '$x25', callee-saved-restored: true,<br>
+ debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }<br>
+ - { id: 7, name: '', type: spill-slot, offset: -64, size: 8, alignment: 8,<br>
+ stack-id: 0, callee-saved-register: '$x26', callee-saved-restored: true,<br>
+ debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }<br>
+ - { id: 8, name: '', type: spill-slot, offset: -72, size: 8, alignment: 8,<br>
+ stack-id: 0, callee-saved-register: '$x27', callee-saved-restored: true,<br>
+ debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }<br>
+ - { id: 9, name: '', type: spill-slot, offset: -80, size: 8, alignment: 8,<br>
+ stack-id: 0, callee-saved-register: '$x28', callee-saved-restored: true,<br>
+ debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }<br>
+ - { id: 10, name: '', type: spill-slot, offset: -88, size: 8, alignment: 8,<br>
+ stack-id: 0, callee-saved-register: '$d8', callee-saved-restored: true,<br>
+ debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }<br>
+ - { id: 11, name: '', type: spill-slot, offset: -96, size: 8, alignment: 8,<br>
+ stack-id: 0, callee-saved-register: '$d9', callee-saved-restored: true,<br>
+ debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }<br>
+ - { id: 12, name: '', type: spill-slot, offset: -104, size: 8, alignment: 8,<br>
+ stack-id: 0, callee-saved-register: '$d10', callee-saved-restored: true,<br>
+ debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }<br>
+ - { id: 13, name: '', type: spill-slot, offset: -112, size: 8, alignment: 8,<br>
+ stack-id: 0, callee-saved-register: '$d11', callee-saved-restored: true,<br>
+ debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }<br>
+constants:<br>
+body: |<br>
+ bb.0.entry:<br>
+ successors: %bb.2(0x40000000), %bb.1(0x40000000)<br>
+ liveins: $x0, $x1, $d0, $d1, $d10, $d11, $d8, $d9, $x27, $x28, $x25, $x26, $x23, $x24, $x21, $x22, $x19, $x20<br>
+<br>
+ early-clobber $sp = frame-setup STPDpre killed $d10, killed $d11, $sp, -14 :: (store 8 into %stack.12), (store 8 into %stack.13)<br>
+ frame-setup SEH_SaveFRegP_X 10, 11, -112<br>
+ frame-setup STPDi killed $d8, killed $d9, $sp, 2 :: (store 8 into %stack.10), (store 8 into %stack.11)<br>
+ frame-setup SEH_SaveFRegP 8, 9, 16<br>
+ frame-setup STPXi killed $x27, killed $x28, $sp, 4 :: (store 8 into %stack.8), (store 8 into %stack.9)<br>
+ frame-setup SEH_SaveRegP 27, 28, 32<br>
+ frame-setup STPXi killed $x25, killed $x26, $sp, 6 :: (store 8 into %stack.6), (store 8 into %stack.7)<br>
+ frame-setup SEH_SaveRegP 25, 26, 48<br>
+ frame-setup STPXi killed $x23, killed $x24, $sp, 8 :: (store 8 into %stack.4), (store 8 into %stack.5)<br>
+ frame-setup SEH_SaveRegP 23, 24, 64<br>
+ frame-setup STPXi killed $x21, killed $x22, $sp, 10 :: (store 8 into %stack.2), (store 8 into %stack.3)<br>
+ frame-setup SEH_SaveRegP 21, 22, 80<br>
+ frame-setup STPXi killed $x19, killed $x20, $sp, 12 :: (store 8 into %stack.0), (store 8 into %stack.1)<br>
+ frame-setup SEH_SaveRegP 19, 20, 96<br>
+ frame-setup SEH_PrologEnd<br>
+ frame-setup CFI_INSTRUCTION def_cfa_offset 112<br>
+ frame-setup CFI_INSTRUCTION offset $w19, -8<br>
+ frame-setup CFI_INSTRUCTION offset $w20, -16<br>
+ frame-setup CFI_INSTRUCTION offset $w21, -24<br>
+ frame-setup CFI_INSTRUCTION offset $w22, -32<br>
+ frame-setup CFI_INSTRUCTION offset $w23, -40<br>
+ frame-setup CFI_INSTRUCTION offset $w24, -48<br>
+ frame-setup CFI_INSTRUCTION offset $w25, -56<br>
+ frame-setup CFI_INSTRUCTION offset $w26, -64<br>
+ frame-setup CFI_INSTRUCTION offset $w27, -72<br>
+ frame-setup CFI_INSTRUCTION offset $w28, -80<br>
+ frame-setup CFI_INSTRUCTION offset $b8, -88<br>
+ frame-setup CFI_INSTRUCTION offset $b9, -96<br>
+ frame-setup CFI_INSTRUCTION offset $b10, -104<br>
+ frame-setup CFI_INSTRUCTION offset $b11, -112<br>
+ $x19 = ADDXrr $x0, killed $x1<br>
+ $d8 = FADDDrr killed $d0, $d1<br>
+ $d9 = FADDDrr $d8, $d1<br>
+ $d10 = FADDDrr $d9, $d8<br>
+ $d11 = FADDDrr killed $d9, $d10<br>
+ $x20 = SUBSXrr $x19, killed $x0, implicit-def $nzcv<br>
+ Bcc 1, %bb.2, implicit killed $nzcv<br>
+ B %bb.1<br>
+<br>
+ bb.1:<br>
+ liveins: $x19, $x20<br>
+<br>
+ $x21 = ADDXrr $x20, killed $x19<br>
+ $x22 = ADDXrr $x21, killed $x20<br>
+ $x23 = ADDXrr $x22, killed $x21<br>
+ $x24 = ADDXrr $x23, killed $x22<br>
+ $x25 = ADDXrr $x24, killed $x23<br>
+ $x26 = ADDXrr $x25, killed $x24<br>
+ $x27 = ADDXrr $x26, killed $x25<br>
+ $x28 = ADDXrr $x27, killed $x26<br>
+ $x0 = COPY $x28<br>
+ frame-destroy SEH_EpilogStart<br>
+ $x19, $x20 = frame-destroy LDPXi $sp, 12 :: (load 8 from %stack.0), (load 8 from %stack.1)<br>
+ frame-destroy SEH_SaveRegP 19, 20, 96<br>
+ $x21, $x22 = frame-destroy LDPXi $sp, 10 :: (load 8 from %stack.2), (load 8 from %stack.3)<br>
+ frame-destroy SEH_SaveRegP 21, 22, 80<br>
+ $x23, $x24 = frame-destroy LDPXi $sp, 8 :: (load 8 from %stack.4), (load 8 from %stack.5)<br>
+ frame-destroy SEH_SaveRegP 23, 24, 64<br>
+ $x25, $x26 = frame-destroy LDPXi $sp, 6 :: (load 8 from %stack.6), (load 8 from %stack.7)<br>
+ frame-destroy SEH_SaveRegP 25, 26, 48<br>
+ $x27, $x28 = frame-destroy LDPXi $sp, 4 :: (load 8 from %stack.8), (load 8 from %stack.9)<br>
+ frame-destroy SEH_SaveRegP 27, 28, 32<br>
+ $d8, $d9 = frame-destroy LDPDi $sp, 2 :: (load 8 from %stack.10), (load 8 from %stack.11)<br>
+ frame-destroy SEH_SaveFRegP 8, 9, 16<br>
+ early-clobber $sp, $d10, $d11 = frame-destroy LDPDpost $sp, 14 :: (load 8 from %stack.12), (load 8 from %stack.13)<br>
+ frame-destroy SEH_SaveFRegP_X 10, 11, -112<br>
+ frame-destroy SEH_EpilogEnd<br>
+ RET_ReallyLR implicit $x0<br>
+<br>
+ bb.2:<br>
+ liveins: $x28, $d11<br>
+<br>
+ $x0 = COPY $d11<br>
+ $x0 = ADDXrr $x0, killed $x28<br>
+ frame-destroy SEH_EpilogStart<br>
+ $x19, $x20 = frame-destroy LDPXi $sp, 12 :: (load 8 from %stack.0), (load 8 from %stack.1)<br>
+ frame-destroy SEH_SaveRegP 19, 20, 96<br>
+ $x21, $x22 = frame-destroy LDPXi $sp, 10 :: (load 8 from %stack.2), (load 8 from %stack.3)<br>
+ frame-destroy SEH_SaveRegP 21, 22, 80<br>
+ $x23, $x24 = frame-destroy LDPXi $sp, 8 :: (load 8 from %stack.4), (load 8 from %stack.5)<br>
+ frame-destroy SEH_SaveRegP 23, 24, 64<br>
+ $x25, $x26 = frame-destroy LDPXi $sp, 6 :: (load 8 from %stack.6), (load 8 from %stack.7)<br>
+ frame-destroy SEH_SaveRegP 25, 26, 48<br>
+ $d8, $d9 = frame-destroy LDPDi $sp, 2 :: (load 8 from %stack.10), (load 8 from %stack.11)<br>
+ frame-destroy SEH_SaveFRegP 8, 9, 16<br>
+ early-clobber $sp, $d10, $d11 = frame-destroy LDPDpost $sp, 14 :: (load 8 from %stack.12), (load 8 from %stack.13)<br>
+ frame-destroy SEH_SaveFRegP_X 10, 11, -112<br>
+ frame-destroy SEH_EpilogEnd<br>
+ RET_ReallyLR implicit $x0<br>
+<br>
+...<br>
<br>
<br>
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</blockquote></div>