Derek Schuff cdb105b62f [MC] Attach labels to existing fragments instead of using a separate fragment ... Summary: Currently when emitting a label, a new data fragment is created for it if the current fragment isn't a data fragment. This change instead enqueues the label and attaches it to the next fragment (e.g. created for the next instruction) if possible. When bundle alignment is not enabled, this has no functionality change (it just results in fewer extra fragments being created). For bundle alignment, previously labels would point to the beginning of the bundle padding instead of the beginning of the emitted instruction. This was not only less efficient (e.g. jumping to the nops instead of past them) but also led to miscalculation of the address of the GOT (since MC uses a label difference rather than emitting a "." symbol). Fixes https://code.google.com/p/nativeclient/issues/detail?id=3982 Test Plan: regression test attached Reviewers: jvoung, eliben Subscribers: jfb, llvm-commits Differential Revision: http://reviews.llvm.org/D5915 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@220439 91177308-0d34-0410-b5e6-96231b3b80d8		2014-10-22 22:38:06 +00:00
..
Analysis	[InstSimplify] Support constant folding to vector of pointers	2014-10-22 12:18:48 +00:00
AsmParser
Bitcode
CodeGen	Strength reduce constant-sized vectors into arrays. No functionality change.	2014-10-22 19:55:26 +00:00
DebugInfo	Constify input argument of RelocVisitor and DWARFContext constructors. NFC.	2014-10-20 20:28:51 +00:00
ExecutionEngine	[MCJIT] Defer application of AArch64 MachO GOT relocations until resolve time.	2014-10-21 23:41:15 +00:00
IR
IRReader
LineEditor
Linker
LTO
MC	[MC] Attach labels to existing fragments instead of using a separate fragment	2014-10-22 22:38:06 +00:00
Object
Option
ProfileData	Reduce double set lookups. NFC.	2014-10-10 15:32:50 +00:00
Support	Strength reduce constant-sized vectors into arrays. No functionality change.	2014-10-22 19:55:26 +00:00
TableGen
Target	[Hexagon] Adding encoding bits for add opcode.	2014-10-22 20:58:35 +00:00
Transforms	LoopVectorize: Simplify code. No functionality change.	2014-10-22 19:13:54 +00:00
CMakeLists.txt
LLVMBuild.txt
Makefile