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Possible short-circuit miscompile for while loop guard #3830
Description
In the code linked below, the LHS of an && expression is used as an array bounds guard for the RHS.
This seems to be miscompiled, such that assigning each subexpression to a local inside the loop works fine, but segfaults occur when putting the whole thing as the while condition.
Activity
nikomatsakis commentedon Oct 22, 2012
Have you tried to minimize this into a standalone function?
burg commentedon Oct 23, 2012
No. I've already spent ~1/2 day bisecting this bug in the last week, and don't have time
On Oct 22, 2012, at 16:41 , Niko Matsakis wrote:
msullivan commentedon Aug 10, 2013
I'm not really sure what to do with this bug. The comment about the bug is still in servo (in
src/components/main/layout/util.rs), but the code has changed so that it doesn't look like I could just switch back to the old version... Played around a bit trying to trigger it with small cases, but didn't find anything.thestinger commentedon Oct 8, 2013
Closing due to the lack of a reproducible test case.
feat: use offline by default with cargo fmt (rust-lang#3830)