[Bug 110953] Adding a redundant single-iteration do-while loop causes different image to be rendered

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=110953

--- Comment #5 from Ian Romanick <idr at freedesktop.org> ---
The problem is this bit of code loop_unroll_visitor::simple_unroll.

   if (limit_if != first_ir->as_if() || exit_branch_has_instructions)
      iterations++;

The check that the first thing in the loop is an if-statement expects that to
only occur when the if-statement is a terminator for the loop (e.g., if (i > 6)
break;).  This loop starts with an if-statement that is not a terminator, so
the loop iteration count is incorrectly incremented.

-- 
You are receiving this mail because:
You are the QA Contact for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/intel-3d-bugs/attachments/20190620/d930ae63/attachment.html>