Rafael Espindola 9a4584b54b Simplify the computation of undefined symbols. Instead of walking ... functions and initializers, just report the declarations present in the module. The motivation is to open the way for using the lazy module parsing, which should speed up clients that just want a symbol list (nm, ar). This is slightly less precise, but since both -strip-dead-prototypes and -globaldce are part of the standard pipeline, this shouldn't change the result for clang/dragonegg produced binaries. Any decl in an IL file was also put there because a FE expected it to be necessary, so this should not be a problem for "-O0 -emit-llvm". As a sanity check, I have bootstrapped clang on linux and built firefox on both linux and darwin. A clang bootstrap on darwin with LTO fails with or without this patch because, ironically, the linker doesn't like the combination of dead_strip and LTO when building libLTO.so :-) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127870 91177308-0d34-0410-b5e6-96231b3b80d8		2011-03-18 05:12:38 +00:00
..
CMakeLists.txt	Build LTO as a static library too.	2011-03-12 22:01:36 +00:00
lto.cpp	Add support in the LTO library for loading an object from the middle	2011-03-17 00:36:11 +00:00
lto.exports	Add support in the LTO library for loading an object from the middle	2011-03-17 00:36:11 +00:00
LTOCodeGenerator.cpp
LTOCodeGenerator.h
LTOModule.cpp	Simplify the computation of undefined symbols. Instead of walking	2011-03-18 05:12:38 +00:00
LTOModule.h	Simplify the computation of undefined symbols. Instead of walking	2011-03-18 05:12:38 +00:00
Makefile