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llvm-project/llvm/lib/Transforms/Utils
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Andrew Kaylor f0f279291c Initial implementation of optimization bisect support. 
This patch implements a optimization bisect feature, which will allow optimizations to be selectively disabled at compile time in order to track down test failures that are caused by incorrect optimizations.

The bisection is enabled using a new command line option (-opt-bisect-limit).  Individual passes that may be skipped call the OptBisect object (via an LLVMContext) to see if they should be skipped based on the bisect limit.  A finer level of control (disabling individual transformations) can be managed through an addition OptBisect method, but this is not yet used.

The skip checking in this implementation is based on (and replaces) the skipOptnoneFunction check.  Where that check was being called, a new call has been inserted in its place which checks the bisect limit and the optnone attribute.  A new function call has been added for module and SCC passes that behaves in a similar way.

Differential Revision: http://reviews.llvm.org/D19172

llvm-svn: 267022
 		2016-04-21 17:58:54 +00:00
..
ASanStackFrameLayout.cpp Update to use new name alignTo(). 2016-01-14 21:06:47 +00:00
AddDiscriminators.cpp Fix null pointer access for discriminator assignment. 2016-04-14 19:46:38 +00:00
BasicBlockUtils.cpp [LV] Preserve LoopInfo when store predication is used 2016-03-15 18:06:20 +00:00
BreakCriticalEdges.cpp TransformUtils: Remove implicit ilist iterator conversions, NFC 2015-10-13 02:39:05 +00:00
BuildLibCalls.cpp Fix Clang-tidy readability-redundant-control-flow warnings; other minor fixes. 2016-02-02 18:20:45 +00:00
BypassSlowDivision.cpp Clarify that the bypassSlowDivision optimization operates on a single BB [v2] 2016-01-04 23:18:58 +00:00
CMakeLists.txt Add a pass to name anonymous/nameless function 2016-04-12 21:35:28 +00:00
CloneFunction.cpp Transforms: Try harder to fix bootstrap after r266565 2016-04-17 20:11:09 +00:00
CloneModule.cpp Preserve extern_weak linkage in CloneModule. 2016-03-31 20:21:31 +00:00
CmpInstAnalysis.cpp
…
CodeExtractor.cpp [IR] Reformulate LLVM's EH funclet IR 2015-12-12 05:38:55 +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
Evaluator.cpp Don't IPO over functions that can be de-refined 2016-04-08 00:48:30 +00:00
FlattenCFG.cpp LPM: Stop threading `Pass *` through all of the loop utility APIs. NFC 2015-12-15 19:40:57 +00:00
FunctionImportUtils.cpp [ThinLTO] Prevent importing of "llvm.used" values 2016-04-20 14:39:45 +00:00
GlobalStatus.cpp NFC: make AtomicOrdering an enum class 2016-04-06 21:19:33 +00:00
InlineFunction.cpp Maintain calling convention when inling calls to llvm.deoptimize 2016-04-09 00:22:59 +00:00
InstructionNamer.cpp Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC) 2015-06-23 09:49:53 +00:00
IntegerDivision.cpp TransformUtils: Avoid getNodePtrUnchecked() in integer division, NFC 2016-02-21 20:14:29 +00:00
LCSSA.cpp [AA] Preserve the AA results wrapper pass as well as BasicAA in a few 2016-02-19 03:12:14 +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 [SimplifyCFG] Fold `llvm.guard(false)` to unreachable 2016-04-21 05:09:12 +00:00
LoopSimplify.cpp [LoopSimplify] Reuse changeToUnreachable 2016-01-24 19:32:52 +00:00
LoopUnroll.cpp Follow-up for r265605: don't mutate vector we're iterating. 2016-04-07 00:09:42 +00:00
LoopUnrollRuntime.cpp Transforms: Fix bootstrap after r266565 2016-04-17 19:26:49 +00:00
LoopUtils.cpp [LoopUtils] Fix typo in comment 2016-04-21 17:33:22 +00:00
LoopVersioning.cpp [LoopVersioning] Relax an assert for LCSSA PHIs 2016-03-22 18:38:15 +00:00
LowerInvoke.cpp [NFC] Header cleanup 2016-04-18 09:17:29 +00:00
LowerSwitch.cpp TransformUtils: Remove implicit ilist iterator conversions, NFC 2015-10-13 02:39:05 +00:00
Mem2Reg.cpp Initial implementation of optimization bisect support. 2016-04-21 17:58:54 +00:00
MemorySSA.cpp Correct IDF calculator for ReverseIDF 2016-04-19 06:13:28 +00:00
MetaRenamer.cpp Whoops, remove trailing whitespace. 2015-08-27 05:37:12 +00:00
ModuleUtils.cpp [ThinLTO] Prevent importing of "llvm.used" values 2016-04-20 14:39:45 +00:00
NameAnonFunctions.cpp Fix mismatch on returned type between header and implementation for createNameAnonFunctionPass() 2016-04-12 23:25:11 +00:00
PromoteMemoryToRegister.cpp Correct IDF calculator for ReverseIDF 2016-04-19 06:13:28 +00:00
SSAUpdater.cpp Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC) 2015-06-23 09:49:53 +00:00
SanitizerStats.cpp Fix Clang-tidy modernize-use-nullptr and modernize-use-override warnings; other minor fixes. 2016-01-26 18:48:36 +00:00
SimplifyCFG.cpp [ValueTracking] Make isImpliedCondition return an Optional<bool>. NFC. 2016-04-20 19:15:26 +00:00
SimplifyIndVar.cpp [NFC] Header cleanup 2016-04-18 09:17:29 +00:00
SimplifyInstructions.cpp [Utils] Put includes in correct order. NFC. 2015-11-24 18:57:06 +00:00
SimplifyLibCalls.cpp [NFC] Header cleanup 2016-04-18 09:17:29 +00:00
SplitModule.cpp [NFC] Header cleanup 2016-04-18 09:17:29 +00:00
SymbolRewriter.cpp Make some headers self-contained, remove unused includes that violate layering. 2016-01-27 16:05:37 +00:00
UnifyFunctionExitNodes.cpp TransformUtils: Remove implicit ilist iterator conversions, NFC 2015-10-13 02:39:05 +00:00
Utils.cpp Add a pass to name anonymous/nameless function 2016-04-12 21:35:28 +00:00
ValueMapper.cpp ValueMapper: Map uniqued nodes in post-order 2016-04-21 02:34:36 +00:00