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Simon Pilgrim 9c3138bd6d [InstCombine] visitTrunc - pass through undefs for trunc(shift(trunc/ext(x),c)) patterns 
Based on the recent patches D88475 and D88429 where we are losing undef values due to extension/comparisons.

I've added a Constant::mergeUndefsWith method that merges the undef scalar/elements from another Constant into a specific Constant.

Differential Revision: https://reviews.llvm.org/D88687
 		2020-10-13 14:35:18 +01:00
..
Analysis [Analysis] findAffectedValues - remove unused ConstantInt argument. NFCI. 2020-10-13 14:35:18 +01:00
AsmParser [DebugInfo] Support for DWARF attribute DW_AT_rank 2020-10-10 17:51:12 +05:30
BinaryFormat DebugInfo: Cleanup RLE dumping, using a length-constrained DataExtractor rather than carrying the end offset separately 2020-09-18 19:32:38 -07:00
Bitcode [BitCodeAnalyzer] Add a few missing TYPE_CODES and MODULE_CODE_COMDAT to GetCodeName 2020-10-12 15:43:12 -07:00
Bitstream [Bitstream] Use alignTo to make code more readable. NFC 2020-09-01 11:06:45 -07:00
CodeGen [GlobalISel] Avoid making G_PTR_ADD with nullptr 2020-10-13 13:02:55 +02:00
DWARFLinker [llvm] Rename DwarfFile to DWARFFile to fix ODR violation (NFC) 2020-10-04 23:46:36 -07:00
DebugInfo Show register names in DWARF unwind info. 2020-10-05 15:34:33 -07:00
Demangle
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ExecutionEngine [RuntimeDyld][COFF] Report fatal error on error, rather than emiting diagnostic. 2020-10-06 15:16:29 -07:00
Extensions Remove unused variable(s) 2020-09-08 16:58:01 -07:00
FileCheck Reland [FileCheck] Move FileCheck implementation out of LLVMSupport into its own library 2020-09-01 14:59:28 +02:00
Frontend [OpenMP][OMPBuilder] Adding support for `omp single` 2020-08-16 01:15:16 -04:00
FuzzMutate
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Fuzzer
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IR [InstCombine] visitTrunc - pass through undefs for trunc(shift(trunc/ext(x),c)) patterns 2020-10-13 14:35:18 +01:00
IRReader
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InterfaceStub [lib/Object] - Refine interface of ELFFile<ELFT>. NFCI. 2020-09-15 11:38:31 +03:00
LTO Temporarily revert "[ThinLTO] Re-order modules for optimal multi-threaded processing" 2020-10-09 14:36:20 -07:00
LineEditor
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Linker [IRMover] Add missing open quote in the warning message 2020-10-09 15:17:16 -07:00
MC Introduce and use a new section type for the bb_addr_map section. 2020-10-08 11:13:19 -07:00
MCA [APInt] New member function setBitVal 2020-09-02 21:40:31 +01:00
Object [AMDGPU] Add gfx602, gfx705, gfx805 targets 2020-10-10 17:22:22 +01:00
ObjectYAML [AMDGPU] Add gfx602, gfx705, gfx805 targets 2020-10-10 17:22:22 +01:00
Option [NFC] Fix the signature and definition of findByPrefix 2020-09-11 12:38:28 +01:00
Passes [FixIrreducible][NewPM] Port -fix-irreducible to NPM 2020-10-09 09:22:09 -07:00
ProfileData [Coverage] Add empty line regions to SkippedRegions 2020-09-21 12:42:53 -07:00
Remarks BitstreamRemarkParser.h - remove unnecessary includes. NFCI. 2020-08-06 13:17:53 +01:00
Support [X86] Add HRESET instruction. 2020-10-13 08:47:26 +08:00
TableGen [TableGen] Add overload of RecordKeeper::getAllDerivedDefinitions() 2020-10-12 16:40:09 -04:00
Target [AArch64] Identify SAD pattern 2020-10-13 15:50:54 +05:30
Testing [cmake] Make gtest include directories a part of the library interface 2020-08-27 15:35:57 +02:00
TextAPI [TextAPI] update DriverKit string value 2020-08-15 06:44:30 -07:00
ToolDrivers [llvm-lib] Support adding short import library objects with llvm-lib 2020-07-24 22:15:08 +03:00
Transforms [InstCombine] visitTrunc - pass through undefs for trunc(shift(trunc/ext(x),c)) patterns 2020-10-13 14:35:18 +01:00
WindowsManifest [CMake] Simplify CMake handling for libxml2 2020-09-09 21:44:44 -07:00
XRay
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CMakeLists.txt Reland [FileCheck] Move FileCheck implementation out of LLVMSupport into its own library 2020-09-01 14:59:28 +02:00
LLVMBuild.txt [elfabi] Move llvm-elfabi related code to InterfaceStub library 2020-08-13 11:51:44 -07:00