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authorSanjay Patel <spatel@rotateright.com>2016-03-14 16:54:43 +0000
committerSanjay Patel <spatel@rotateright.com>2016-03-14 16:54:43 +0000
commit62d707c8d91a5cc304ec52ecc990e6234cb04525 (patch)
tree0dc3ea20c9afff0ebcce352730ca8cd7468378ae /lldb/packages/Python/lldbsuite/test/python_api/symbol-context/TestSymbolContext.py
parente8efff373a5118edf298b63a4c24cdbcc3ebd1da (diff)
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[x86, AVX] replace masked load with full vector load when possible
Converting masked vector loads to regular vector loads for x86 AVX should always be a win. I raised the legality issue of reading the extra memory bytes on llvm-dev. I did not see any objections. 1. x86 already does this kind of optimization for multiple scalar loads -> vector load. 2. If other targets have the same flexibility, we could move this transform up to CGP or DAGCombiner. Differential Revision: http://reviews.llvm.org/D18094 llvm-svn: 263446
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