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Sanjay Patel c8d88ad1a9 [CodeGenPrepare][x86] shift both sides of a vector select when profitable 
This is based on the example/discussion in PR37428:
https://bugs.llvm.org/show_bug.cgi?id=37428

Proper vector shift instructions don't appear until AVX2, so we may generate several
extra instructions within a loop trying to compensate for that. It's difficult to
recover from that shift expansion later than this, so use the existing TLI hook and
splat analysis to enable better codegen.

This extends CGP functionality introduced with:
rL201655

Differential Revision: https://reviews.llvm.org/D63233

llvm-svn: 363511
 		2019-06-16 15:29:03 +00:00
..
Analysis [SCEV] Use unsigned/signed intersection type in SCEV 2019-06-15 09:15:52 +00:00
AsmParser Revert r361953 "[SVE][IR] Scalable Vector IR Type" 2019-06-09 19:27:50 +00:00
BinaryFormat [XCOFF] Add functionality for parsing AIX XCOFF object file headers 2019-04-04 00:53:21 +00:00
Bitcode [ThinLTO][Bitcode] Add 'entrycount' to FS_COMBINED_PROFILE. NFC 2019-06-13 12:33:26 +00:00
CodeGen [CodeGenPrepare][x86] shift both sides of a vector select when profitable 2019-06-16 15:29:03 +00:00
DebugInfo Symbolize: Remove dead code. NFCI. 2019-06-13 22:49:34 +00:00
Demangle llvm-undname: Correctly demangle vararg parameters 2019-06-04 19:10:08 +00:00
ExecutionEngine [JITLink] Move JITLinkMemoryManager into its own header. 2019-06-14 19:41:21 +00:00
FuzzMutate [opaque pointer types] Pass value type to LoadInst creation. 2019-02-01 20:44:24 +00:00
Fuzzer
…
IR [Remarks] Use the RemarkSetup error in setupOptimizationRemarks 2019-06-14 18:18:26 +00:00
IRReader [IRReader] Expose getLazyIRModule 2019-02-11 22:01:13 +00:00
LTO [Clang] Harmonize Split DWARF options with llc 2019-06-15 15:38:51 +00:00
LineEditor Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
Linker Reapply: IR: add optional type to 'byval' function parameters 2019-05-30 18:48:23 +00:00
MC Add --print-supported-cpus flag for clang. 2019-06-14 21:42:21 +00:00
MCA [MCA] Ignore invalid processor resource writes of zero cycles. NFCI 2019-06-14 13:31:21 +00:00
Object Share /machine: handling code with llvm-cvtres too 2019-06-12 11:32:43 +00:00
ObjectYAML [yaml2obj] - Allow setting cutom Flags for implicit sections. 2019-06-14 11:01:14 +00:00
Option Option spell checking: Penalize delimiter flags if input has no argument 2019-05-01 16:45:15 +00:00
Passes [Attributor] Pass infrastructure and fixpoint framework 2019-06-05 03:02:24 +00:00
ProfileData [Coverage] Speculative fix for r363325 for an older compiler 2019-06-14 00:03:22 +00:00
Remarks [Remarks] Fix usage of enum class 2019-05-30 22:01:56 +00:00
Support [clang] Add storage for APValue in ConstantExpr 2019-06-15 10:24:47 +00:00
TableGen TableGen: Handle nontrivial foreach range bounds 2019-05-22 21:28:20 +00:00
Target [x86] split 256-bit vector selects if operands are vector concats 2019-06-16 14:04:49 +00:00
Testing [Testing] Move clangd::Annotations to llvm testing support 2019-04-25 10:08:31 +00:00
TextAPI [TextAPI] Fix Symbol::dump which was failing to append the SymbolKind string. 2019-04-29 18:25:04 +00:00
ToolDrivers Share /machine: handling code with llvm-cvtres too 2019-06-12 11:32:43 +00:00
Transforms [SimplifyIndVar] Simplify non-overflowing saturating add/sub 2019-06-15 08:48:52 +00:00
WindowsManifest Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
XRay Recommit [Object] Change object::SectionRef::getContents() to return Expected<StringRef> 2019-05-16 13:24:04 +00:00
CMakeLists.txt [OptRemarks] Make OptRemarks more generic: rename OptRemarks to Remarks 2019-03-05 20:45:17 +00:00
LLVMBuild.txt [OptRemarks] Make OptRemarks more generic: rename OptRemarks to Remarks 2019-03-05 20:45:17 +00:00