llvm-6502/include/llvm
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
..
ADT [ADT] Add a 'find_as' operation to DenseSet. 2014-10-19 19:36:33 +00:00
Analysis AssumptionTracker: Don't create temporary CallbackVHs. 2014-10-11 19:13:01 +00:00
AsmParser Pass a MemoryBufferRef when we can avoid taking ownership. 2014-08-26 21:49:01 +00:00
Bitcode Spell out the template args for compilers having issues with the injected class 2014-09-15 16:13:33 +00:00
CodeGen Add minnum / maxnum codegen 2014-10-21 23:01:01 +00:00
Config Re-land r219354: Use llvm-symbolizer to symbolize LLVM/Clang crash dumps. 2014-10-10 22:06:59 +00:00
DebugInfo Constify input argument of RelocVisitor and DWARFContext constructors. NFC. 2014-10-20 20:28:51 +00:00
ExecutionEngine [MCJIT] Turn the getSymbolAddress free function created in r218626 into a static 2014-10-01 04:11:13 +00:00
IR Revert "Teach the load analysis to allow finding available values which require" (r220277) 2014-10-21 23:49:52 +00:00
IRReader Pass a MemoryBufferRef when we can avoid taking ownership. 2014-08-26 21:49:01 +00:00
LineEditor
Linker
LTO unique_ptrify LTOCodeGenerator::NativeObjectFile 2014-09-02 18:21:06 +00:00
MC [MC] Attach labels to existing fragments instead of using a separate fragment 2014-10-22 22:38:06 +00:00
Object [MCJIT] Temporarily revert r220245 - it broke several bots. 2014-10-21 00:24:02 +00:00
Option Add an overload of getLastArgNoClaim taking two OptSpecifiers. 2014-09-12 19:42:53 +00:00
ProfileData InstrProf: Avoid linear search in a hot loop 2014-10-02 17:14:18 +00:00
Support GCC has supported C++11 ref-qualifiers since 4.8.1 2014-10-21 21:15:45 +00:00
TableGen [TableGen] Fully resolve class-instance values before defs in multiclasses 2014-09-16 17:14:13 +00:00
Target Add minnum / maxnum intrinsics 2014-10-21 23:00:20 +00:00
Transforms Shrinkify libcalls: use float versions of double libm functions with fast-math (bug 17850) 2014-10-22 15:29:23 +00:00
CMakeLists.txt
InitializePasses.h Add a new pass FunctionTargetTransformInfo. This pass serves as a 2014-09-18 00:34:14 +00:00
LinkAllIR.h
LinkAllPasses.h Make AAMDNodes ctor and operator bool (!!!) explicit, mop up bugs and weirdness exposed by it. 2014-10-04 22:44:29 +00:00
module.modulemap [modules] Stop excluding Support/Debug.h from the Support module. This header 2014-10-13 00:41:03 +00:00
module.modulemap.build
Pass.h
PassAnalysisSupport.h
PassInfo.h
PassManager.h
PassRegistry.h [PM] Remove an unused and rather expensive mapping from an analysis 2014-10-06 00:30:59 +00:00
PassSupport.h Defining a new API for debug options that doesn't rely on static global cl::opts. 2014-10-15 21:54:35 +00:00