Jakub Kuderski 300700e70f [InstCombine] Improve infinite loop detection ... Summary: This patch limits the default number of iterations performed by InstCombine. It also exposes a new option that allows to specify how many iterations is considered getting stuck in an infinite loop. Based on experiments performed on real-world C++ programs, InstCombine seems to perform at most ~8-20 iterations, so treating 1000 iterations as an infinite loop seems like a safe choice. See D71145 for details. The two limits can be specified via command line options. Reviewers: spatel, lebedev.ri, nikic, xbolva00, grosser Reviewed By: spatel Subscribers: hiraditya, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D71673		2019-12-20 16:15:04 -05:00
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CMakeLists.txt	[cmake] Explicitly mark libraries defined in lib/ as "Component Libraries"	2019-11-21 10:48:08 -08:00
InstCombineAddSub.cpp	[InstCombine] Invert add A, sext(B) --> sub A, zext(B) canonicalization (to sub A, zext B -> add A, sext B)	2019-12-05 21:21:30 +03:00
InstCombineAndOrXor.cpp	[InstCombine] conditional sign-extend of high-bit-extract: 'or' pattern.	2019-10-20 20:52:06 +00:00
InstCombineAtomicRMW.cpp	[Alignment][NFC] Remove StoreInst::setAlignment(unsigned)	2019-10-03 13:17:21 +00:00
InstCombineCalls.cpp	[IR] Split out target specific intrinsic enums into separate headers	2019-12-11 18:02:14 -08:00
InstCombineCasts.cpp	[InstCombine] Insert instructions before adding them to worklist	2019-12-18 14:55:41 -05:00
InstCombineCompares.cpp	Reland [DataLayout] Fix occurrences that size and range of pointers are assumed to be the same.	2019-12-13 14:30:21 +00:00
InstCombineInternal.h	Revert "[InstCombine] Fold PHIs with equal incoming pointers"	2019-11-14 17:42:01 +07:00
InstCombineLoadStoreAlloca.cpp	[InstCombine] Teach removeBitcastsFromLoadStoreOnMinMax not to change the size of a store.	2019-12-16 12:12:54 -08:00
InstCombineMulDivRem.cpp	[InstCombine] fix undef propagation for vector urem transform (PR44186)	2019-12-02 12:17:38 -05:00
InstCombinePHI.cpp	[InstCombine] Don't use getFirstNonPHI in FoldIntegerTypedPHI	2019-11-14 17:52:01 -08:00
InstCombineSelect.cpp	[InstCombine] Expand usub_sat patterns to handle constants	2019-11-30 16:58:01 +00:00
InstCombineShifts.cpp	[InstCombine] prevent crashing/assert on shift constant expression (PR44028)	2019-11-17 17:31:09 -05:00
InstCombineSimplifyDemanded.cpp	[InstCombine] Canonicalize select immediates	2019-12-19 12:36:46 +00:00
InstCombineTables.td
InstCombineVectorOps.cpp	[InstCombine] replace shuffle's insertelement operand if inserted scalar is not demanded	2019-12-10 10:10:05 -05:00
InstructionCombining.cpp	[InstCombine] Improve infinite loop detection	2019-12-20 16:15:04 -05:00
LLVMBuild.txt