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llvm-6502/tools/gold
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Rafael Espindola d3732d9095 Simplify the handling of aliases in the gold plugin. 
The complicated situation is when we have to keep an alias but drop a GV
that is part of the aliasee.

We used to clone the dropped GV and make the clone internal. This is wasteful
as we know the original will be dropped.

With this patch what is done instead is set the linkage of the original to
internal and replace all uses (but the one in the alias) with a new
declaration that takes the name of the old GV. This saves us from having
to copy the body.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@223863 91177308-0d34-0410-b5e6-96231b3b80d8
2014-12-10 00:09:35 +00:00
..
CMakeLists.txt Be less conservative about when we build the gold plugin. 2014-12-05 17:25:52 +00:00
gold-plugin.cpp Simplify the handling of aliases in the gold plugin. 2014-12-10 00:09:35 +00:00
gold.exports
Makefile
README.txt

README.txt 

The LLVM Gold LTO Plugin
========================

This directory contains a plugin that is designed to work with binutils
gold linker. At present time, this is not the default linker in
binutils, and the default build of gold does not support plugins.

See docs/GoldPlugin.html for complete build and usage instructions.

NOTE: libLTO and LLVMgold aren't built without PIC because they would fail
to link on x86-64 with a relocation error: PIC and non-PIC can't be combined.
As an alternative to passing --enable-pic, you can use 'make ENABLE_PIC=1' in
your entire LLVM build.