Rafael Espindola a586fd2c56 Start deciding earlier what to link. ...

A traditional linker is roughly split in symbol resolution and "copying
stuff".

The two tasks are badly mixed in lib/Linker.

This starts splitting them apart.

With this patch there are no direct call to linkGlobalValueBody or
linkGlobalValueProto. Everything is linked via WapValue.

This also includes a few fixes:
* A GV goes undefined if the comdat is dropped (comdat11.ll).
* We error if an internal GV goes undefined (comdat13.ll).
* We don't link an unused comdat.

The first two match the behavior of an ELF linker. The second one is
equivalent to running globaldce on the input.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@254336 91177308-0d34-0410-b5e6-96231b3b80d8

2015-11-30 22:01:43 +00:00

..

AddDiscriminators.cpp

Fix the debug build breakage that getDiscriminator is called by mistake.

2015-11-19 20:29:27 +00:00

ASanStackFrameLayout.cpp

[Utils] Put includes in correct order. NFC.

2015-11-24 18:57:06 +00:00

BasicBlockUtils.cpp

TransformUtils: Remove implicit ilist iterator conversions, NFC

2015-10-13 02:39:05 +00:00

BreakCriticalEdges.cpp

TransformUtils: Remove implicit ilist iterator conversions, NFC

2015-10-13 02:39:05 +00:00

BuildLibCalls.cpp

[Utils] Put includes in correct order. NFC.

2015-11-24 18:57:06 +00:00

BypassSlowDivision.cpp

TransformUtils: Remove implicit ilist iterator conversions, NFC

2015-10-13 02:39:05 +00:00

CloneFunction.cpp

Teach the inliner to track deoptimization state

2015-11-18 06:23:38 +00:00

CloneModule.cpp

TransformUtils: Remove implicit ilist iterator conversions, NFC

2015-10-13 02:39:05 +00:00

CMakeLists.txt

TransformUtils: Introduce module splitter.

2015-08-21 02:48:20 +00:00

CmpInstAnalysis.cpp

…

CodeExtractor.cpp

TransformUtils: Remove implicit ilist iterator conversions, NFC

2015-10-13 02:39:05 +00:00

CtorUtils.cpp

TransformUtils: Remove implicit ilist iterator conversions, NFC

2015-10-13 02:39:05 +00:00

DemoteRegToStack.cpp

TransformUtils: Remove implicit ilist iterator conversions, NFC

2015-10-13 02:39:05 +00:00

FlattenCFG.cpp

TransformUtils: Remove implicit ilist iterator conversions, NFC

2015-10-13 02:39:05 +00:00

GlobalStatus.cpp

GlobalOpt does not treat externally_initialized globals correctly

2015-10-12 13:20:52 +00:00

InlineFunction.cpp

[OperandBundles] Extract duplicated code into a helper function, NFC

2015-11-25 00:42:24 +00:00

InstructionNamer.cpp

…

IntegerDivision.cpp

TransformUtils: Remove implicit ilist iterator conversions, NFC

2015-10-13 02:39:05 +00:00

LCSSA.cpp

[LCSSA] Unbreak build, don't reuse L; NFC

2015-10-25 19:27:17 +00:00

LLVMBuild.txt

[PM/AA] Remove the last relics of the separate IPA library from LLVM,

2015-08-18 17:51:53 +00:00

Local.cpp

Preserve load alignment and dereferenceable metadata during some transformations

2015-11-02 17:53:51 +00:00

LoopSimplify.cpp

TransformUtils: Remove implicit ilist iterator conversions, NFC

2015-10-13 02:39:05 +00:00

LoopUnroll.cpp

Revert r253253 and r253126: "Don't recompute LCSSA after loop-unrolling when possible."

2015-11-19 20:28:32 +00:00

LoopUnrollRuntime.cpp

TransformUtils: Remove implicit ilist iterator conversions, NFC

2015-10-13 02:39:05 +00:00

LoopUtils.cpp

[Utils] Put includes in correct order. NFC.

2015-11-24 18:57:06 +00:00

LoopVersioning.cpp

[Utils] Put includes in correct order. NFC.

2015-11-24 18:57:06 +00:00

LowerInvoke.cpp

TransformUtils: Remove implicit ilist iterator conversions, NFC

2015-10-13 02:39:05 +00:00

LowerSwitch.cpp

TransformUtils: Remove implicit ilist iterator conversions, NFC

2015-10-13 02:39:05 +00:00

Makefile

…

Mem2Reg.cpp

…

MetaRenamer.cpp

Whoops, remove trailing whitespace.

2015-08-27 05:37:12 +00:00

ModuleUtils.cpp

…

PromoteMemoryToRegister.cpp

TransformUtils: Remove implicit ilist iterator conversions, NFC

2015-10-13 02:39:05 +00:00

SimplifyCFG.cpp

[Utils] Put includes in correct order. NFC.

2015-11-24 18:57:06 +00:00

SimplifyIndVar.cpp

[IndVars] Preserve LCSSA in eliminateIdentitySCEV

2015-10-07 17:38:31 +00:00

SimplifyInstructions.cpp

[Utils] Put includes in correct order. NFC.

2015-11-24 18:57:06 +00:00

SimplifyLibCalls.cpp

[SimplifyLibCalls] Transform log(exp2(y)) to y*log(2) under fast-math.

2015-11-30 19:36:35 +00:00

SplitModule.cpp

TransformUtils: Introduce module splitter.

2015-08-21 02:48:20 +00:00

SSAUpdater.cpp

…

SymbolRewriter.cpp

…

UnifyFunctionExitNodes.cpp

TransformUtils: Remove implicit ilist iterator conversions, NFC

2015-10-13 02:39:05 +00:00

Utils.cpp

…

ValueMapper.cpp

Start deciding earlier what to link.

2015-11-30 22:01:43 +00:00