Duncan P. N. Exon Smith 67af0456bc LTO: add API to set strategy for -internalize ... Add API to LTOCodeGenerator to specify a strategy for the -internalize pass. This is a new attempt at Bill's change in r185882, which he reverted in r188029 due to problems with the gold linker. This puts the onus on the linker to decide whether (and what) to internalize. In particular, running internalize before outputting an object file may change a 'weak' symbol into an internal one, even though that symbol could be needed by an external object file --- e.g., with arclite. This patch enables three strategies: - LTO_INTERNALIZE_FULL: the default (and the old behaviour). - LTO_INTERNALIZE_NONE: skip -internalize. - LTO_INTERNALIZE_HIDDEN: only -internalize symbols with hidden visibility. LTO_INTERNALIZE_FULL should be used when linking an executable. Outputting an object file (e.g., via ld -r) is more complicated, and depends on whether hidden symbols should be internalized. E.g., for ld -r, LTO_INTERNALIZE_NONE can be used when -keep_private_externs, and LTO_INTERNALIZE_HIDDEN can be used otherwise. However, LTO_INTERNALIZE_FULL is inappropriate, since the output object file will eventually need to link with others. lto_codegen_set_internalize_strategy() sets the strategy for subsequent calls to lto_codegen_write_merged_modules() and lto_codegen_compile*(). <rdar://problem/14334895> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199191 91177308-0d34-0410-b5e6-96231b3b80d8		2014-01-14 06:37:26 +00:00
..
ADT	Add missing definitions of key_type and value_type to DenseSet.	2014-01-08 21:38:04 +00:00
Analysis	[PM] Split DominatorTree into a concrete analysis result object which	2014-01-13 13:07:17 +00:00
AsmParser	Move the LLVM IR asm writer header files into the IR directory, as they	2014-01-07 12:34:26 +00:00
Bitcode	Update getLazyBitcodeModule to use ErrorOr for error handling.	2014-01-13 18:31:04 +00:00
CodeGen	[DAG] Teach DAG to also reassociate vector operations	2014-01-13 20:51:35 +00:00
Config	Remove the test for endianness in configure.ac and regenerate.	2014-01-09 01:09:57 +00:00
DebugInfo	llvm-dwarfdump: type unit dwo support	2014-01-09 05:08:24 +00:00
ExecutionEngine	Re-apply r196639: Add support for archives and object file caching under MCJIT.	2014-01-08 04:09:09 +00:00
IR	[PM] Fix stale header blocker, found by Duncan Smith in code review!	2014-01-14 05:50:19 +00:00
IRReader	Split out the IRReader header and the utility functions it provides into	2013-03-26 02:25:37 +00:00
LTO	LTO: add API to set strategy for -internalize	2014-01-14 06:37:26 +00:00
MC	Replace .mips_hack_stocg with ".set micromips" and ".set nomicromips".	2014-01-14 04:25:13 +00:00
Object	Use getError and remove the error_code operator.	2014-01-08 22:03:39 +00:00
Option	Option parsing: support case-insensitive option matching.	2013-08-28 20:04:31 +00:00
Support	[PM] Split DominatorTree into a concrete analysis result object which	2014-01-13 13:07:17 +00:00
TableGen	Speling fixes.	2013-10-22 15:18:03 +00:00
Target	All backends use MC now.	2014-01-10 21:49:27 +00:00
Transforms	LTO: add API to set strategy for -internalize	2014-01-14 06:37:26 +00:00
AutoUpgrade.h	Debug Info: drop debug info via upgrading path if version number does not match.	2013-12-02 21:29:56 +00:00
CMakeLists.txt	Move all of the header files which are involved in modelling the LLVM IR	2013-01-02 11:36:10 +00:00
DebugInfo.h	Re-sort all of the includes with ./utils/sort_includes.py so that	2014-01-07 11:48:04 +00:00
DIBuilder.h	Debug info: Implement (rvalue) reference qualifiers for C++11 non-static	2013-12-18 21:48:19 +00:00
GVMaterializer.h	Use error_code in GVMaterializer.	2013-11-05 19:36:34 +00:00
InitializePasses.h	[PM] Split DominatorTree into a concrete analysis result object which	2014-01-13 13:07:17 +00:00
InstVisitor.h	Add addrspacecast instruction.	2013-11-15 01:34:59 +00:00
LinkAllIR.h	[cleanup] Move the Dominators.h and Verifier.h headers into the IR	2014-01-13 09:26:24 +00:00
LinkAllPasses.h	[PM] Simplify the interface exposed for IR printing passes.	2014-01-12 11:30:46 +00:00
Linker.h	Add a 'deleteModule' method to the Linker class.	2013-10-16 08:59:57 +00:00
Pass.h	moves doInitialization and doFinalization to the Pass class and removes some unreachable code in MachineModuleInfo	2012-12-03 21:56:57 +00:00
PassAnalysisSupport.h	Fix include guards so they exactly match file names.	2013-01-10 00:45:19 +00:00
PassManager.h	Move the old pass manager infrastructure into a legacy namespace and	2013-11-09 12:26:54 +00:00
PassRegistry.h	Re-sort all of the includes with ./utils/sort_includes.py so that	2014-01-07 11:48:04 +00:00
PassSupport.h	Fix include guards so they exactly match file names.	2013-01-10 00:45:19 +00:00