[PATCH] D152328: InstrProf - don't emit 64 bit atomic operations on 32 bit platforms

[Sean Mollet via Phabricator via llvm-commits]

SeanMollet added a comment.

In D152328#4436381 <https://reviews.llvm.org/D152328#4436381>, @davidxl wrote:

> My understanding is that atomic update is enabled in some shared build environment thus causing problems for the 32 bit target. If that is not the case, it is perhaps better to use -fprofile-update option to control the behavior as suggested by Ellis.

It's enabled at any optimization level greater than O0 (I pasted the offending code in the previous reply). As far as I can tell, profile-update has no effect on it.


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