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Provide flag for showing showing Word# and Word64# as hexadecimal when dumping GHC core. The only affects Word, not Int, and it prefixes the hexadecimal with enough zeroes to make the total character count a power of two. For example: - 0x0C0C instead of 0xC0C - 0x00BA00BA instead of 0xBA00BA This also affects the presentation of Word# and Word64# in GHC's error messages. It is not expected that the flag will be used for this, but it is a side-effect worth noting. Test Plan: none Reviewers: bgamari, simonpj Reviewed By: simonpj Subscribers: simonpj, mpickering, rwbarton, thomie, carter, andrewthad GHC Trac Issues: #14872 Differential Revision: https://phabricator.haskell.org/D4465
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