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[X86] For Silvermont CPU use 16-bit division instead of 64-bit for small positive...
authorAlexey Volkov <avolkov.intel@gmail.com>
Fri, 21 Nov 2014 11:19:34 +0000 (11:19 +0000)
committerAlexey Volkov <avolkov.intel@gmail.com>
Fri, 21 Nov 2014 11:19:34 +0000 (11:19 +0000)
commitd0d042436876cee0ef37b1faf8cb50c878549407
tree87df9808cb9e0ddb6e86b6686f7a63e34cf4ecectree | snapshot
parent432ade7da6d03fca0a8b72dd4cb0dcd10a0db05bcommit | diff
[X86] For Silvermont CPU use 16-bit division instead of 64-bit for small positive numbers

Differential Revision: http://reviews.llvm.org/D5938

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222521 91177308-0d34-0410-b5e6-96231b3b80d8
lib/Target/X86/X86.td diff | blob | history
lib/Target/X86/X86ISelLowering.cpp diff | blob | history
lib/Target/X86/X86Subtarget.cpp diff | blob | history
lib/Target/X86/X86Subtarget.h diff | blob | history
test/CodeGen/X86/slow-div.ll [new file with mode: 0644] blob
C/C++ LLVM-based compilers that forbids OOTA behaviors