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<b><a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - Adding a redundant single-iteration do-while loop causes different image to be rendered"
href="https://bugs.freedesktop.org/show_bug.cgi?id=110953#c5">Comment # 5</a>
on <a class="bz_bug_link
bz_status_ASSIGNED "
title="ASSIGNED - Adding a redundant single-iteration do-while loop causes different image to be rendered"
href="https://bugs.freedesktop.org/show_bug.cgi?id=110953">bug 110953</a>
from <span class="vcard"><a class="email" href="mailto:idr@freedesktop.org" title="Ian Romanick <idr@freedesktop.org>"> <span class="fn">Ian Romanick</span></a>
</span></b>
<pre>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.</pre>
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