From c00c2b246b12b47ab2cc22d522806aa3a900038b Mon Sep 17 00:00:00 2001
From: Peter Collingbourne <peter@pcc.me.uk>
Date: Thu, 8 Jun 2017 01:26:14 +0000
Subject: Object: Factor out the code for creating the irsymtab for an
 arbitrary bitcode file.

This code now lives in lib/Object. The idea is that it can now be reused by
IRObjectFile among other things.

Differential Revision: https://reviews.llvm.org/D31921

llvm-svn: 304958
---
 llvm/lib/Object/IRObjectFile.cpp | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

(limited to 'llvm/lib/Object/IRObjectFile.cpp')

diff --git a/llvm/lib/Object/IRObjectFile.cpp b/llvm/lib/Object/IRObjectFile.cpp
index bcaee029ce5..9996661fbde 100644
--- a/llvm/lib/Object/IRObjectFile.cpp
+++ b/llvm/lib/Object/IRObjectFile.cpp
@@ -139,3 +139,26 @@ IRObjectFile::create(MemoryBufferRef Object, LLVMContext &Context) {
   return std::unique_ptr<IRObjectFile>(
       new IRObjectFile(*BCOrErr, std::move(Mods)));
 }
+
+Expected<IRSymtabFile> object::readIRSymtab(MemoryBufferRef MBRef) {
+  IRSymtabFile F;
+  ErrorOr<MemoryBufferRef> BCOrErr =
+      IRObjectFile::findBitcodeInMemBuffer(MBRef);
+  if (!BCOrErr)
+    return errorCodeToError(BCOrErr.getError());
+
+  Expected<std::vector<BitcodeModule>> BMsOrErr =
+      getBitcodeModuleList(*BCOrErr);
+  if (!BMsOrErr)
+    return BMsOrErr.takeError();
+
+  Expected<irsymtab::FileContents> FCOrErr = irsymtab::readBitcode(*BMsOrErr);
+  if (!FCOrErr)
+    return FCOrErr.takeError();
+
+  F.Mods = std::move(*BMsOrErr);
+  F.Symtab = std::move(FCOrErr->Symtab);
+  F.Strtab = std::move(FCOrErr->Strtab);
+  F.TheReader = std::move(FCOrErr->TheReader);
+  return std::move(F);
+}
-- 
cgit v1.2.3