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Optimize integral reciprocal (udiv 1, x and sdiv 1, x) to not use division.

Description

Optimize integral reciprocal (udiv 1, x and sdiv 1, x) to not use division. This fires exactly once in a clang bootstrap, but covers a few different results from http://www.cs.utah.edu/~regehr/souper/

Details

Committed
nicholasMay 13 2014, 8:03 PM
Parents
rL208749: Don't assert and crash when sections are malformed.
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