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Fedor Sergeev cc7cb05e9d [BasicBlock] fix looping in getPostdominatingDeoptimizeCall 
Blindly following unique-successors chain appeared to be a bad idea.
In a degenerate case when block jumps to itself that goes into endless loop.

Discovered this problem when playing with additional changes,
managed to reproduce it on existing LoopPredication code.

Fix by checking a "visited" set while iterating through unique successors.

Reviewed By: skatkov

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D72908
 		2020-01-17 15:40:02 +03:00
..
Analysis PointerLikeTypeTraits: Standardize NumLowBitsAvailable on static constexpr rather than anonymous enum 2020-01-16 15:30:50 -08:00
AsmParser [ThinLTO] Always import constants 2020-01-15 19:29:01 +03:00
BinaryFormat DWARFDebugLine.cpp: Format unknown line number standard opcodes 2020-01-15 10:45:50 -05:00
Bitcode [ThinLTO] Always import constants 2020-01-15 19:29:01 +03:00
Bitstream [Bitstream] Delete skipAbbreviatedField which duplicates readAbbreviatedField 2019-12-25 18:55:02 -08:00
CodeGen [SelectionDAG] Better ISD::ANY_EXTEND/ISD::ANY_EXTEND_VECTOR_INREG ComputeKnownBits support 2020-01-17 11:37:58 +00:00
DWARFLinker [Dsymutil][Debuginfo][NFC] #3 Refactor dsymutil to separate DWARF optimizing part. 2020-01-13 23:33:25 +03:00
DebugInfo DWARFDebugLine.cpp: Format unknown line number standard opcodes 2020-01-15 10:45:50 -05:00
Demangle Revert "Add some missing includes to MicrosoftDemangle.cpp (PR44217)" 2019-12-04 11:10:07 -08:00
ExecutionEngine [ORC] Set setCloneToNewContextOnEmit on LLJIT's transform layer when needed. 2020-01-15 10:22:57 -08:00
Frontend [OpenMP] Use the OpenMPIRBuilder for `omp parallel` 2019-12-30 13:57:13 -06:00
FuzzMutate [cmake] Explicitly mark libraries defined in lib/ as "Component Libraries" 2019-11-21 10:48:08 -08:00
Fuzzer
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IR [BasicBlock] fix looping in getPostdominatingDeoptimizeCall 2020-01-17 15:40:02 +03:00
IRReader [cmake] Explicitly mark libraries defined in lib/ as "Component Libraries" 2019-11-21 10:48:08 -08:00
LTO remove an include that's unused after r347592 2020-01-16 12:49:54 -05:00
LineEditor [cmake] Explicitly mark libraries defined in lib/ as "Component Libraries" 2019-11-21 10:48:08 -08:00
Linker [NFC] Fixes -Wrange-loop-analysis warnings 2020-01-01 20:01:37 +01:00
MC [AsmParser] Make generic directives and aliases case insensitive. 2020-01-17 11:02:56 +00:00
MCA [NFC] Fixes -Wrange-loop-analysis warnings 2020-01-01 20:01:37 +01:00
Object [MIPS][ELF] Use PC-relative relocations in .eh_frame when possible 2020-01-13 14:14:03 +00:00
ObjectYAML [Hexagon] Add ELF flags for Hexagon v66 to ELFYAML.cpp 2020-01-16 15:01:00 -06:00
Option [cmake] Explicitly mark libraries defined in lib/ as "Component Libraries" 2019-11-21 10:48:08 -08:00
Passes [GVN] add GVN parameters parsing to new pass manager 2020-01-16 23:53:46 +03:00
ProfileData [NFC] Fix trivial typos in comments 2020-01-06 10:50:26 +00:00
Remarks [Remarks] Allow empty temporary remark files 2019-11-22 15:58:12 -08:00
Support Revert "[Support] make report_fatal_error `abort` instead of `exit`" 2020-01-15 17:52:25 -08:00
TableGen [TableGen] Introduce an if/then/else statement. 2020-01-14 10:19:53 +00:00
Target [AArch64][SVE] Add break intrinsics 2020-01-17 11:47:08 +00:00
Testing
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TextAPI [cmake] Explicitly mark libraries defined in lib/ as "Component Libraries" 2019-11-21 10:48:08 -08:00
ToolDrivers [cmake] Explicitly mark libraries defined in lib/ as "Component Libraries" 2019-11-21 10:48:08 -08:00
Transforms AMDGPU: Do permlane16 vdst_in discard optimization in InstCombine 2020-01-16 17:27:53 -05:00
WindowsManifest Revert "Temporarily revert "build: avoid hardcoding the libxml2 library name"" 2019-12-03 09:27:14 -08:00
XRay [cmake] Explicitly mark libraries defined in lib/ as "Component Libraries" 2019-11-21 10:48:08 -08:00
CMakeLists.txt [Dsymutil][Debuginfo][NFC] Reland: Refactor dsymutil to separate DWARF optimizing part. #2. 2020-01-08 14:15:31 +03:00
LLVMBuild.txt [Dsymutil][Debuginfo][NFC] Reland: Refactor dsymutil to separate DWARF optimizing part. #2. 2020-01-08 14:15:31 +03:00