[PATCH] D54275: [HIP] Remove useless sections in linked files

[Yaxun Liu via Phabricator via cfe-commits]

yaxunl created this revision.
yaxunl added a reviewer: tra.

clang-offload-bundler creates `__CLANG_OFFLOAD_BUNDLE__*` sections in the bundles,
which get into the linked files. These sections are useless after linking. They waste disk
space and cause confusion for clang when directly linked with other object files, therefore
should be removed.


https://reviews.llvm.org/D54275

Files:
  lib/Driver/ToolChains/CommonArgs.cpp


Index: lib/Driver/ToolChains/CommonArgs.cpp
===================================================================
--- lib/Driver/ToolChains/CommonArgs.cpp
+++ lib/Driver/ToolChains/CommonArgs.cpp
@@ -1436,6 +1436,10 @@
   LksStream << "    PROVIDE_HIDDEN(__hip_fatbin = .);\n";
   LksStream << "    " << BundleFileName << "\n";
   LksStream << "  }\n";
+  LksStream << "  /DISCARD/ :\n";
+  LksStream << "  {\n";
+  LksStream << "    * ( __CLANG_OFFLOAD_BUNDLE__* )\n";
+  LksStream << "  }\n";
   LksStream << "}\n";
   LksStream << "INSERT BEFORE .data\n";
   LksStream.flush();


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