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AVX supports logical operations using an operand from memory. Unfortunately because integer operations were not added until AVX2 the AVX1 logical operation's types were preventing the isel from folding the loads. In a limited number of cases the peephole optimizer would fold the loads, but most were missed. This patch adds explicit patterns with appropriate casts in order for these loads to be folded. The included test cases run on reduced examples and disable the peephole optimizer to ensure the folds are being pattern matched. Patch by Louis Gerbarg <lgg@apple.com> rdar://16355124 llvm-svn: 205938 |
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