tree b8183a1bfdf9e5f5f1c90049d27cd17e00d3c67d
parent c2751907e7ad09f82d3cda9b19e09e9c8b6e4b1a
author Siva Chandra <sivachandra@google.com> 1610703298 -0800
committer Copybara-Service <copybara-worker@google.com> 1611100282 -0800

[libc] Extend the current fenv functions to aarch64.

This change does not try to move the common parts of x86 and aarch64 and
build few abstractions over them. While this is possible, x86 story
needs a bit of cleanup, especially around manipulation of the mxcsr
register. Moreover, on x86 one can raise exceptions without performing
exception raising operations. So, all of this can be done in follow up
patches.

Reviewed By: lntue

Differential Revision: https://reviews.llvm.org/D94947

GitOrigin-RevId: 7bd3702b64043fb623bf82c1d1a8a2d168142219