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Simon Pilgrim 989cbbd2f5 [DAGCombiner] Fold CONCAT_VECTORS of EXTRACT_SUBVECTOR (or undef) to VECTOR_SHUFFLE. 
Check to see if this is a CONCAT_VECTORS of a bunch of EXTRACT_SUBVECTOR operations. If so, and if the EXTRACT_SUBVECTOR vector inputs come from at most two distinct vectors the same size as the result, attempt to turn this into a legal shuffle.

Differential Revision: http://reviews.llvm.org/D12125

llvm-svn: 245490
 		2015-08-19 20:09:50 +00:00
..
Analysis [SCEV] Fix GCC 4.8.0 ICE in lambda function 2015-08-19 17:26:07 +00:00
AsmParser [IR] Give catchret an optional 'return value' operand 2015-08-15 02:46:08 +00:00
Bitcode [IR] Give catchret an optional 'return value' operand 2015-08-15 02:46:08 +00:00
CodeGen [DAGCombiner] Fold CONCAT_VECTORS of EXTRACT_SUBVECTOR (or undef) to VECTOR_SHUFFLE. 2015-08-19 20:09:50 +00:00
DebugInfo Fix some comment typos. 2015-08-08 18:27:36 +00:00
ExecutionEngine [RuntimeDyld] Make sure code-sections aren't under-aligned. 2015-08-14 06:26:42 +00:00
Fuzzer Fix missing space in libfuzzer's help text. 2015-08-12 20:00:10 +00:00
IR [LPM] Teach the legacy pass manager to support *using* an analysis 2015-08-19 03:02:12 +00:00
IRReader Return a unique_ptr from getLazyBitcodeModule and parseBitcodeFile. NFC. 2015-06-16 22:27:55 +00:00
LTO [PM/AA] Remove the last relics of the separate IPA library from LLVM, 2015-08-18 17:51:53 +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 Linker: Move distinct MDNodes instead of cloning 2015-08-03 17:09:38 +00:00
MC Extend MCAsmLexer so that it can peek forward several tokens 2015-08-17 14:35:25 +00:00
Object Convert getSymbolSection to return an ErrorOr. 2015-08-07 23:27:14 +00:00
Option Add an ArgList::AddAllArgs that accepts a vector of OptSpecifier. 2015-07-29 17:34:41 +00:00
Passes [PM/AA] Remove the last relics of the separate IPA library from LLVM, 2015-08-18 17:51:53 +00:00
ProfileData Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC) 2015-06-23 09:49:53 +00:00
Support Support: Clean up TSan annotations. 2015-08-18 22:31:24 +00:00
TableGen TableGen: Support folding casts from bits to int 2015-07-31 01:12:06 +00:00
Target [Sparc]: asm-only support for the ldstub instruction. 2015-08-19 19:30:57 +00:00
Transforms Replace some calls to isa<LandingPadInst> with isEHPad() 2015-08-19 19:54:02 +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