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llvm-mirror/include/llvm/CodeGen/LinkAllAsmWriterComponents.h
Max Kazantsev f98a6ff646 [GC][NFC] Move GCStrategy from CodeGen to IR
We want it to be available in analyzes so that we could use the
CodeGen notion in middle-end passes (for example, to check if
a GC may free some particular pointer).

This is a preparatory patch that simply moves the files around.

Note: if this causes some build issues, this patch must just be reverted.

Differential Revision: https://reviews.llvm.org/D100557
Reviewed By: reames
2021-05-13 12:31:59 +07:00

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//===- llvm/Codegen/LinkAllAsmWriterComponents.h ----------------*- C++ -*-===//
//
// 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
//
//===----------------------------------------------------------------------===//
//
// This header file pulls in all assembler writer related passes for tools like
// llc that need this functionality.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CODEGEN_LINKALLASMWRITERCOMPONENTS_H
#define LLVM_CODEGEN_LINKALLASMWRITERCOMPONENTS_H
#include "llvm/IR/BuiltinGCs.h"
#include <cstdlib>
namespace {
struct ForceAsmWriterLinking {
ForceAsmWriterLinking() {
// We must reference the plug-ins in such a way that compilers will not
// delete it all as dead code, even with whole program optimization,
// yet is effectively a NO-OP. As the compiler isn't smart enough
// to know that getenv() never returns -1, this will do the job.
if (std::getenv("bar") != (char*) -1)
return;
llvm::linkOcamlGCPrinter();
llvm::linkErlangGCPrinter();
}
} ForceAsmWriterLinking; // Force link by creating a global definition.
}
#endif // LLVM_CODEGEN_LINKALLASMWRITERCOMPONENTS_H