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Juneyoung Lee 0f2c180163 [ValueTracking] Implement impliesPoison 
This PR adds impliesPoison(ValAssumedPoison, V) that returns true if V is
poison under the assumption that ValAssumedPoison is poison.

For example, impliesPoison('icmp X, 10', 'icmp X, Y') return true because
'icmp X, Y' is poison if 'icmp X, 10' is poison.

impliesPoison can be used for sound optimization of select, as discussed in
D77868.

Reviewed By: nikic

Differential Revision: https://reviews.llvm.org/D78152
 		2020-12-29 06:50:38 +09:00
..
ADT [ADT] Fix some tests after 5d10b8ad 2020-12-22 18:06:19 +00:00
Analysis [ValueTracking] Implement impliesPoison 2020-12-29 06:50:38 +09:00
AsmParser [SVE] Remove calls to VectorType::getNumElements from AsmParserTest 2020-07-07 14:55:42 -07:00
BinaryFormat [BinaryFormat] Add formatv support for DW_OP constants 2020-06-08 15:27:44 +02:00
Bitcode [AMDGPU] Set the default globals address space to 1 2020-11-20 15:46:53 +00:00
Bitstream Switch from llvm::is_trivially_copyable to std::is_trivially_copyable 2020-12-02 22:02:48 -08:00
CodeGen [docs][unittest][Go][StackProtector] Migrate deprecated DebugInfo::get to DILocation::get 2020-12-15 14:17:04 -08:00
DebugInfo llvm-dwarfdump: Support verbose printing DW_OP_convert to print the CU local offset before the resolved absolute offset 2020-10-23 18:50:15 -07:00
Demangle
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ExecutionEngine [JITLink][ORC] Enable creation / linking of raw jitlink::LinkGraphs. 2020-12-16 14:01:50 +11:00
FileCheck Reland [FileCheck] Move FileCheck implementation out of LLVMSupport into its own library 2020-09-01 14:59:28 +02:00
Frontend [docs][unittest][Go][StackProtector] Migrate deprecated DebugInfo::get to DILocation::get 2020-12-15 14:17:04 -08:00
FuzzMutate Revert "Revert "[NFC][llvm] Make the contructors of `ElementCount` private."" 2020-08-19 17:26:36 +00:00
IR [DebugInfo] Support Fortran 'use <external module>' statement. 2020-12-18 13:10:57 -05:00
InterfaceStub [llvm] Fix ODRViolations for VersionTuple YAML specializations NFC 2020-10-20 18:29:15 -07:00
LineEditor
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Linker
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MC [MC] Adjust StringTableBuilder for linked Mach-O binaries 2020-10-22 19:19:41 -07:00
MI LIS: fix handleMove to properly extend main range 2020-07-07 11:52:32 -07:00
Object [libObject, llvm-readobj] - Reimplement `ELFFile<ELFT>::getEntry`. 2020-12-18 16:52:27 +03:00
ObjectYAML Add -Wno-error=unknown flag to clang-format. 2020-09-19 10:17:57 +02:00
Option [clang][cli] Split DefaultAnyOf into a default value and ImpliedByAnyOf 2020-12-01 09:50:11 +01:00
Passes Don't export symbols from clang/opt/llc if plugins are disabled. 2020-03-23 12:17:09 -07:00
ProfileData [llvm] [unittests] Remove temporary files after they're not needed 2020-09-02 00:34:44 +03:00
Remarks
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Support [Support] Add KnownBits::getSignedMinValue/getSignedMaxValue helpers. 2020-12-24 14:10:12 +00:00
TableGen [TableGen] Eliminte source location from CodeInit 2020-11-23 11:30:13 -05:00
Target [NFCI] Replace AArch64StackOffset by StackOffset. 2020-11-04 08:49:00 +00:00
TextAPI [YAML] Use correct source location for unknown key errors. 2020-12-11 16:34:06 +00:00
Transforms [LoopNest] Extend `LPMUpdater` and adaptor to handle loop-nest passes 2020-12-22 08:47:38 +08:00
XRay Use std::foo_t rather than std::foo in LLVM. 2020-02-11 15:12:51 -08:00
tools [llvm-exegesis][PowerPC] Add more register classes 2020-12-04 15:02:12 +00:00
CMakeLists.txt Reland [FileCheck] Move FileCheck implementation out of LLVMSupport into its own library 2020-09-01 14:59:28 +02:00
unittest.cfg.in
…