[PATCH] D138473: clang/HIP: Inline frexp/frexpf implementations

Matt Arsenault via Phabricator via cfe-commits cfe-commits at lists.llvm.org
Tue Nov 22 10:33:56 PST 2022


arsenm added a comment.

In D138473#3944586 <https://reviews.llvm.org/D138473#3944586>, @yaxunl wrote:

> Are you sure these functions are equivalent? we do not have a comprehensive test for these functions regarding accuracy.

These are ultimately simple bit extracts. The library implementation just calls these intrinsics. The only difference from the current library code and here is a check to handle infinities and nans, which the ISA manual suggests is unnecessary. I have another patch to eliminate the check there


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  https://reviews.llvm.org/D138473/new/

https://reviews.llvm.org/D138473



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