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Simon Pilgrim d0448ee59f [X86][SSE] Vectorize CTTZ + CTTZ_ZERO_UNDEF 
Now that we have fast vector CTPOP implementations we can use this to speed up vector CTTZ using the pattern (cttz(x) = ctpop((x & -x) - 1))

Additionally, for AVX512CD that provides lzcnt instructions we can use the pattern (cttz_undef(x) = (width - 1) - ctlz(x & -x))

Differential Revision: http://reviews.llvm.org/D12663

llvm-svn: 248091
 		2015-09-19 13:22:57 +00:00
..
Analysis Clean up: Refactoring the hardcoded value of 6 for FindAvailableLoadedValue()'s parameter MaxInstsToScan. (Complete version of r247497. See D12886) 2015-09-18 19:14:35 +00:00
AsmParser Support align attribute for return values 2015-09-18 12:33:31 +00:00
Bitcode Silencing a -Wsign-compare warning; NFC. 2015-09-18 13:31:42 +00:00
CodeGen [PrologEpilogInserter] Minor refactoring. 2015-09-19 04:42:15 +00:00
DebugInfo [dwarfdump] Do not apply relocations in mach-o files if there is no LoadedObjectInfo. 2015-08-23 04:44:21 +00:00
ExecutionEngine [RuntimeDyld] Support non-zero addends for the MachO X86_64 SUBTRACTOR reloc. 2015-09-10 21:05:58 +00:00
Fuzzer [libFuzzer] perform fewer crossover operations compared to plain mutations 2015-09-11 00:20:58 +00:00
IR Added MD_invariant_group to LLVMContext 2015-09-17 20:25:07 +00:00
IRReader Return a unique_ptr from getLazyBitcodeModule and parseBitcodeFile. NFC. 2015-06-16 22:27:55 +00:00
LTO Reapply "LTO: Disable extra verify runs in release builds" 2015-09-15 23:05:59 +00:00
LibDriver There is only one saver of strings. 2015-08-13 01:07:02 +00:00
LineEditor Use ADDITIONAL_HEADER_DIRS in all LLVM CMake projects. 2015-02-11 03:28:02 +00:00
Linker [opaque pointer types] Switch a few cases of getElementType over, since I had them lying around anyway 2015-09-14 20:29:26 +00:00
MC Add assembler fatal error for undefined assembler labels in COFF writer 2015-09-16 16:26:29 +00:00
Object Re-apply r246276 - Object: Teach llvm-ar to create symbol table for COFF short import files 2015-08-28 07:40:30 +00:00
Option Add an ArgList::AddAllArgs that accepts a vector of OptSpecifier. 2015-07-29 17:34:41 +00:00
Passes [PM] Port SROA to the new pass manager. 2015-09-12 09:09:14 +00:00
ProfileData GCC AutoFDO profile reader - Initial support. 2015-09-17 00:17:24 +00:00
Support Remove temporary file on signal. 2015-09-18 15:17:53 +00:00
TableGen TableGen: Support folding casts from bits to int 2015-07-31 01:12:06 +00:00
Target [X86][SSE] Vectorize CTTZ + CTTZ_ZERO_UNDEF 2015-09-19 13:22:57 +00:00
Transforms [InstCombine] Use SimplifyDemandedVectorEltsLow helper function. NFCI. 2015-09-19 11:41:53 +00:00
CMakeLists.txt LibDriver, llvm-lib: introduce. 2015-06-09 21:50:22 +00:00
LLVMBuild.txt Wrap some long lines in LLVMBuild files. NFC 2015-06-12 18:44:57 +00:00
Makefile LibDriver, llvm-lib: introduce. 2015-06-09 21:50:22 +00:00