Chandler Carruth 253933ee9e Teach LLVM about a PIE option which, when enabled on top of PIC, makes ... optimizations which are valid for position independent code being linked into a single executable, but not for such code being linked into a shared library. I discussed the design of this with Eric Christopher, and the decision was to support an optional bit rather than a completely separate relocation model. Fundamentally, this is still PIC relocation, its just that certain optimizations are only valid under a PIC relocation model when the resulting code won't be in a shared library. The simplest path to here is to expose a single bit option in the TargetOptions. If folks have different/better designs, I'm all ears. =] I've included the first optimization based upon this: changing TLS models to the *Exec models when PIE is enabled. This is the LLVM component of PR12380 and is all of the hard work. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154294 91177308-0d34-0410-b5e6-96231b3b80d8		2012-04-08 17:51:45 +00:00
..
Analysis	Fix ValueTracking to conclude that debug intrinsics are safe to	2012-04-07 19:22:18 +00:00
Archive	Include cstdio in a few place that depended on getting it transitively through StringExtras.h	2012-03-23 11:35:30 +00:00
AsmParser	Convert assert(0) to llvm_unreachable	2012-02-07 05:05:23 +00:00
Bitcode	llvm::SwitchInst	2012-03-11 06:09:17 +00:00
CodeGen	Move the TLSModel information into the TargetMachine rather than hiding	2012-04-08 17:20:55 +00:00
DebugInfo	Fix a C++11 UDL conflict.	2012-04-04 20:33:56 +00:00
ExecutionEngine	EngineBuilder::create is expected to take ownership of the TargetMachine passed to it. Delete it on error or when we create an interpreter that doesn't need it.	2012-04-08 14:53:14 +00:00
Linker	It's possible for two types, which are isomorphic, to be added to the	2012-03-23 23:17:38 +00:00
MC	Output UTF-8-encoded characters as identifier characters into assembly	2012-04-07 00:37:53 +00:00
Object	Object: drop bogus VMCore dependency	2012-04-03 15:48:10 +00:00
Support	In MemoryBuffer::getOpenFile() make sure that the buffer is null-terminated if	2012-04-05 04:23:56 +00:00
TableGen	Fix infinite loop in nested multiclasses.	2012-03-07 16:39:35 +00:00
Target	Teach LLVM about a PIE option which, when enabled on top of PIC, makes	2012-04-08 17:51:45 +00:00
Transforms	Teach InstCombine to nuke a common alloca pattern -- an alloca which has	2012-04-08 14:36:56 +00:00
VMCore	Remove the 'Parent' pointer from the MDNodeOperand class.	2012-04-08 10:20:49 +00:00
CMakeLists.txt
LLVMBuild.txt	LLVMBuild: Introduce a common section which currently has a list of the	2011-12-12 22:45:54 +00:00
Makefile