[llvm-branch-commits] [llvm] [3/7][PISA] Add PISA register file, instruction set, and MC layer (PR #214107)

[Matt Arsenault via llvm-branch-commits]

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@@ -0,0 +1,30 @@
+//===-- PISAMCExpr.cpp - Handle custom MCExprs ----------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "PISAMCExpr.h"
+#include "PISAInstPrinter.h"
+#include "llvm/MC/MCAssembler.h"
+#include "llvm/MC/MCContext.h"
+#include "llvm/Support/Format.h"
+using namespace llvm;
+
+const PISAGlobalAddressMCExpr *
+PISAGlobalAddressMCExpr::create(const MCSymbol &Symbol, MCContext &Ctx) {
+  return new (Ctx) PISAGlobalAddressMCExpr(Symbol);
+}
+
+PISAGlobalAddressMCExpr::PISAGlobalAddressMCExpr(const MCSymbol &Sym)
+    : Symbol(&Sym) {
+  assert(Symbol);
+}
+
+void PISAGlobalAddressMCExpr::printImpl(raw_ostream &OS,
+                                        const MCAsmInfo *MAI) const {
+  OS << "@";
----------------
arsenm wrote:

```suggestion
  OS << '@';
```

https://github.com/llvm/llvm-project/pull/214107