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082d1c6dcb
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Charlie Turner 082d1c6dcb [SLPVectorizer] Ensure dominated reduction values. 
When considering incoming values as part of a reduction phi, ensure the
incoming value is dominated by said phi.

Failing to ensure this property causes miscompiles.

Fixes PR25787.

Many thanks to Mattias Eriksson for reporting, reducing and analyzing the
problem for me.

Differential Revision: http://reviews.llvm.org/D15580

llvm-svn: 255792
2015-12-16 18:23:44 +00:00
..
Analysis Fix typo in r255720 2015-12-16 00:17:34 +00:00
AsmParser Add InaccessibleMemOnly and inaccessibleMemOrArgMemOnly attributes 2015-12-16 16:16:19 +00:00
Bitcode Add InaccessibleMemOnly and inaccessibleMemOrArgMemOnly attributes 2015-12-16 16:16:19 +00:00
CodeGen [Packetizer] Add a check whether an instruction should be packetized now 2015-12-16 16:38:16 +00:00
DebugInfo [llvm-dwp] Retrieve the DWOID from the CU for the cu_index entry 2015-12-04 17:20:04 +00:00
ExecutionEngine [SectionMemoryManager] Make better use of virtual memory 2015-12-16 11:13:23 +00:00
Fuzzer Fuzzer: Fix library dependencies. 2015-12-16 02:14:57 +00:00
IR Add InaccessibleMemOnly and inaccessibleMemOrArgMemOnly attributes 2015-12-16 16:16:19 +00:00
IRReader
LibDriver [Option] Use an ArrayRef to store the Option Infos in OptTable. NFC 2015-10-21 16:30:42 +00:00
LineEditor
Linker Use diagnostic handler in the LLVMContext 2015-12-14 23:17:03 +00:00
LTO Use diagnostic handler in the LLVMContext 2015-12-14 23:17:03 +00:00
MC [X86][inline asm] support even directive 2015-12-13 17:07:23 +00:00
Object Use diagnostic handler in the LLVMContext 2015-12-14 23:17:03 +00:00
Option [Option] Use an ArrayRef to store the Option Infos in OptTable. NFC 2015-10-21 16:30:42 +00:00
Passes [PM] Port StripDeadPrototypes to the new pass manager 2015-10-30 23:28:12 +00:00
ProfileData Initialize all bytes in vp data (msan error) 2015-12-15 21:57:08 +00:00
Support [SectionMemoryManager] Make better use of virtual memory 2015-12-16 11:13:23 +00:00
TableGen [TblGen] ArrayRefize TGParser. No functional change intended. 2015-10-24 12:46:45 +00:00
Target [WebAssembly] Use the new offset syntax for memory operands in inline asm. 2015-12-16 18:14:49 +00:00
Transforms [SLPVectorizer] Ensure dominated reduction values. 2015-12-16 18:23:44 +00:00
CMakeLists.txt
LLVMBuild.txt
Makefile