[MC][COFF][AArch64] Fix the storage class for private linkage symbols.

Use IMAGE_SYM_CLASS_STATIC like X86.

Differential Revision: https://reviews.llvm.org/D158122

Author: hjyamauchi

llvm/lib/Target/AArch64/AArch64AsmPrinter.cpp

@@ -138,9 +138,9 @@ class AArch64AsmPrinter : public AsmPrinter {
     SetupMachineFunction(MF);
 
     if (STI->isTargetCOFF()) {
-      bool Internal = MF.getFunction().hasInternalLinkage();
-      COFF::SymbolStorageClass Scl = Internal ? COFF::IMAGE_SYM_CLASS_STATIC
-                                              : COFF::IMAGE_SYM_CLASS_EXTERNAL;
+      bool Local = MF.getFunction().hasLocalLinkage();
+      COFF::SymbolStorageClass Scl =
+          Local ? COFF::IMAGE_SYM_CLASS_STATIC : COFF::IMAGE_SYM_CLASS_EXTERNAL;
       int Type =
         COFF::IMAGE_SYM_DTYPE_FUNCTION << COFF::SCT_COMPLEX_TYPE_SHIFT;
 

llvm/test/CodeGen/AArch64/local-sym-storage-class.ll

@@ -0,0 +1,15 @@
+; RUN: llc -mtriple aarch64-unknown-windows-msvc %s -o - | FileCheck %s
+
+define internal void @internal() {
+  ret void
+}
+
+define private void @private() {
+  ret void
+}
+
+; Check that the internal and private linkage symbols have IMAGE_SYM_CLASS_STATIC (3).
+; CHECK: .def    internal;
+; CHECK: .scl    3;
+; CHECK: .def    .Lprivate;
+; CHECK: .scl    3;

llvm/test/CodeGen/X86/local-sym-storage-class.ll

@@ -0,0 +1,15 @@
+; RUN: llc -mtriple x86_64-unknown-windows-msvc %s -o - | FileCheck %s
+
+define internal void @internal() {
+  ret void
+}
+
+define private void @private() {
+  ret void
+}
+
+; Check that the internal and private linkage symbols have IMAGE_SYM_CLASS_STATIC (3).
+; CHECK: .def    internal;
+; CHECK: .scl    3;
+; CHECK: .def    .Lprivate;
+; CHECK: .scl    3;