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llvm-mirror/lib
Simon Pilgrim 51fa2dddea [SelectionDAG] Add icmp UNDEF handling to SelectionDAG::FoldSetCC
First half of PR40800, this patch adds DAG undef handling to icmp instructions to match the behaviour in llvm::ConstantFoldCompareInstruction and SimplifyICmpInst, this permits constant folding of vector comparisons where some elements had been reduced to UNDEF (by SimplifyDemandedVectorElts etc.).

This involved a lot of tweaking to reduced tests as bugpoint loves to reduce icmp arguments to undef........

Differential Revision: https://reviews.llvm.org/D59363

llvm-svn: 356938
2019-03-25 18:51:57 +00:00
..
Analysis Fix the build with GCC 4.8 after r356783 2019-03-25 09:27:42 +00:00
AsmParser IR: Support parsing numeric block ids, and emit them in textual output. 2019-03-22 18:27:13 +00:00
BinaryFormat [Object] Add basic minidump support 2019-03-21 09:18:59 +00:00
Bitcode [DebugInfoMetadata] Move main subprogram DIFlag into DISPFlags 2019-03-19 13:49:03 +00:00
CodeGen [SelectionDAG] Add icmp UNDEF handling to SelectionDAG::FoldSetCC 2019-03-25 18:51:57 +00:00
DebugInfo [DWARF] Delete a stray break and a stray comment. NFC 2019-03-23 16:15:40 +00:00
Demangle
ExecutionEngine [DebugInfo] IntelJitEventListener follow up for "add SectionedAddress ..." 2019-03-25 13:50:26 +00:00
Fuzzer
FuzzMutate
IR [ConstantRange] Add getFull() + getEmpty() named constructors; NFC 2019-03-24 09:34:40 +00:00
IRReader
LineEditor
Linker [Linker] Fix crash handling appending linkage 2019-03-20 19:20:07 +00:00
LTO
MC [llvm-objcopy] - Fix a st_name of the first symbol table entry. 2019-03-22 10:28:56 +00:00
MCA
Object [DWARF] Refactor RelocVisitor and fix computation of SHT_RELA-typed relocation entries 2019-03-22 02:43:11 +00:00
ObjectYAML MinidumpYAML.cpp: Fix some code standard violations missed during review 2019-03-25 14:45:31 +00:00
Option
Passes Resubmit r356511 "[TailCallElim] Add tailcall elimination pass to LTO pipelines" 2019-03-20 19:08:18 +00:00
ProfileData
Remarks [Remarks] Fix mismatched delete due to missing virtual destructor 2019-03-20 17:44:24 +00:00
Support Moved everything SMT-related to LLVM and updated the cmake scripts. 2019-03-25 17:47:45 +00:00
TableGen
Target AMDGPU: Preserve LiveIntervals in WQM 2019-03-25 16:47:42 +00:00
Testing
TextAPI Followup for r356820 to fix the bots. 2019-03-22 23:10:51 +00:00
ToolDrivers
Transforms [SLPVectorizer] reorderInputsAccordingToOpcode - remove non-Instruction canonicalization 2019-03-25 15:53:55 +00:00
WindowsManifest
XRay
CMakeLists.txt
LLVMBuild.txt