[llvm] [llvm] Move data layout string computation to TargetParser (PR #157612)

[Matt Arsenault via llvm-commits]

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@@ -0,0 +1,631 @@
+//===--- TargetDataLayout.cpp - Map Triple to LLVM data layout string -----===//
+//
+// 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 "llvm/ADT/StringRef.h"
+#include "llvm/Support/CommandLine.h"
+#include "llvm/TargetParser/ARMTargetParser.h"
+#include "llvm/TargetParser/Triple.h"
+#include <cstring>
+using namespace llvm;
+
+static const char *getManglingComponent(const Triple &T) {
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arsenm wrote:

```suggestion
static StringRef getManglingComponent(const Triple &T) {
```

https://github.com/llvm/llvm-project/pull/157612