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Add note about future optimization noted in the ppc compiler writer's guide

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llvm-svn: 23245
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Nate Begeman 2005-09-06 15:30:48 +00:00
parent f1994fa030
commit a94912c555
1 changed files with 4 additions and 0 deletions
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4
lib/Target/PowerPC/README.txt
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@ -101,3 +101,7 @@ off of the register to avoid the lis's. This is even more important in PIC
mode.
===-------------------------------------------------------------------------===
Implement Newton-Rhapson method for improving estimate instructions to the
correct accuracy, and implementing divide as multiply by reciprocal when it has
more than one use. Itanium will want this too.