From: Yaxun Liu <Yaxun.Liu@amd.com>
Date: Tue, 5 Mar 2019 17:52:32 +0000 (+0000)
Subject: Allow bundle size to be 0 in clang-offload-bundler
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=a73ceaf4aed15d968b17fafbd1b1606ccbd986e5;p=clang

Allow bundle size to be 0 in clang-offload-bundler

HIP uses clang-offload-bundler to create fat binary. The bundle for host is empty.
Currently clang-offload-bundler checks if the bundle size is 0 when unbundling.
If so it will exit without unbundling the remaining bundles. This causes
clang-offload-bundler not being able to unbundle fat binaries generated for HIP.

This patch allows bundles size to be 0 when clang-offload-bundler unbundles
input files.

Differential Revision: https://reviews.llvm.org/D58057


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@355419 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/tools/clang-offload-bundler/ClangOffloadBundler.cpp b/tools/clang-offload-bundler/ClangOffloadBundler.cpp
index 005450d4e0..4e7cdd6c91 100644
--- a/tools/clang-offload-bundler/ClangOffloadBundler.cpp
+++ b/tools/clang-offload-bundler/ClangOffloadBundler.cpp
@@ -292,7 +292,7 @@ public:
       ReadChars += TripleSize;
 
       // Check if the offset and size make sense.
-      if (!Size || !Offset || Offset + Size > FC.size())
+      if (!Offset || Offset + Size > FC.size())
         return;
 
       assert(BundlesInfo.find(Triple) == BundlesInfo.end() &&