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6 Commits

Author SHA1 Message Date
Craig Topper 448358b5f1 [X86] Fix DecodeVPERMVMask to handle cases where the constant pool entry has a different type than the shuffle itself. 
This is especially important for 32-bit targets with 64-bit shuffle elements.

llvm-svn: 284453
 2016-10-18 04:48:33 +00:00
Craig Topper 7268bf99ab [AVX-512] Fix DecodeVPERMV3Mask to handle cases where the constant pool entry has a different type than the shuffle itself. 
Summary: This is especially important for 32-bit targets with 64-bit shuffle elements.This is similar to how PSHUFB and VPERMIL handle the same problem.

Reviewers: RKSimon

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D25666

llvm-svn: 284451
 2016-10-18 04:00:32 +00:00
Simon Pilgrim 2ead861d07 [X86][XOP] Added VPERMIL2PD/VPERMIL2PS shuffle mask comment decoding 
llvm-svn: 271809
 2016-06-04 21:44:28 +00:00
Simon Pilgrim 1cc5712763 [X86][XOP] Support for VPPERM 2-input shuffle mask decoding 
This patch adds support for decoding XOP VPPERM instruction when it represents a basic shuffle.

The mask decoding required the existing MCInstrLowering code to be updated to support binary shuffles - the implementation now matches what is done in X86InstrComments.cpp.

Differential Revision: http://reviews.llvm.org/D18441

llvm-svn: 265874
 2016-04-09 14:51:26 +00:00
Simon Pilgrim 476170384f [X86] Tidied up shuffle decode function doxygen descriptions 
As discussed on D18441 - auto brief is used so we don't need /brief, we don't need to include the function name and added some missing descriptions.

llvm-svn: 265785
 2016-04-08 14:17:07 +00:00
Craig Topper 69653af748 [X86] Move shuffle decoding for constant pool into the X86CodeGen library to remove a layering violation in the Util library. 
llvm-svn: 256680
 2015-12-31 22:40:45 +00:00