Add the eor instruction to any code model

Author: PanTao2

llvm/lib/Target/AArch64/AArch64InstrInfo.cpp

@@ -2275,14 +2275,15 @@ bool AArch64InstrInfo::expandPostRAPseudo(MachineInstr &MI) const {
           .addGlobalAddress(GV, 0, LoFlags)
           .addMemOperand(*MI.memoperands_begin());
     }
-    if (Subtarget.getTargetTriple().isOSMSVCRT() &&
-        !Subtarget.getTargetLowering()
-             ->getTargetMachine()
-             .Options.EnableGlobalISel) {
-      BuildMI(MBB, MI, DL, get(AArch64::EORWrr), Reg)
-          .addReg(Reg, RegState::Kill)
-          .addReg(AArch64::SP);
-    }
+  }
+  // To match MSVC
+  if (Subtarget.getTargetTriple().isOSMSVCRT() &&
+      !Subtarget.getTargetLowering()
+           ->getTargetMachine()
+           .Options.EnableGlobalISel) {
+    BuildMI(MBB, MI, DL, get(AArch64::EORWrr), Reg)
+        .addReg(Reg, RegState::Kill)
+        .addReg(AArch64::SP);
   }
 
   MBB.erase(MI);

llvm/test/CodeGen/AArch64/mingw-refptr.ll

@@ -1,6 +1,6 @@
 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
 ; RUN: llc < %s -mtriple=aarch64-w64-mingw32 | FileCheck %s --check-prefixes=CHECK,CHECK-SD
-; RUN: llc < %s -mtriple=aarch64-w64-mingw32 -global-isel | FileCheck %s --check-prefixes=CHECK,CHECK-GI
+; RUN: llc < %s -mtriple=aarch64-w64-mingw32 -global-isel | FileCheck %s --check-prefixes=CHECK-GI
 
 @var = external local_unnamed_addr global i32, align 4
 @dsolocalvar = external dso_local local_unnamed_addr global i32, align 4
@@ -89,12 +89,14 @@ define dso_local void @sspFunc() #0 {
 ; CHECK-NEXT:    add x0, sp, #7
 ; CHECK-NEXT:    ldr x8, [x8, :lo12:.refptr.__stack_chk_guard]
 ; CHECK-NEXT:    ldr x8, [x8]
+; CHECK-NEXT:    eor x8, x8, sp
 ; CHECK-NEXT:    str x8, [sp, #8]
 ; CHECK-NEXT:    bl ptrUser
 ; CHECK-NEXT:    adrp x8, .refptr.__stack_chk_guard
 ; CHECK-NEXT:    ldr x8, [x8, :lo12:.refptr.__stack_chk_guard]
 ; CHECK-NEXT:    ldr x9, [sp, #8]
 ; CHECK-NEXT:    ldr x8, [x8]
+; CHECK-NEXT:    eor x8, x8, sp
 ; CHECK-NEXT:    cmp x8, x9
 ; CHECK-NEXT:    b.ne .LBB6_2
 ; CHECK-NEXT:  // %bb.1: // %entry