<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">It looks like this is failing during guaranteed optimization. Are you running an expression in the debugger and we are crashing there?<div class=""><br class=""></div><div class="">Michael</div><div class=""><br class=""><div><blockquote type="cite" class=""><div class="">On Oct 6, 2017, at 11:53 AM, Edward Connell via swift-users <<a href="mailto:swift-users@swift.org" class="">swift-users@swift.org</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class="">While trying to debug a Netlib function, LLDB is crashing<div class=""><br class=""></div><div class=""><div class="">I'm not sure what this assert means.</div></div><div class=""><br class=""></div><div class=""><div class=""><i class="">LLDBFrontend: /home/buildnode/jenkins/workspace/oss-swift-4.0-package-linux-ubuntu-16_04/swift/lib/SILOptimizer/Mandatory/AccessEnforcementSelection.cpp:613: (anonymous namespace)::SourceAccess (anonymous namespace)::AccessEnforcementSelection::getSourceAccess(swift::SILValue): Assertion `isa<AllocStackInst>(address) || isa<SILUndef>(address)' failed.</i></div><div class=""><i class="">Stack dump:</i></div><div class=""><i class="">0.<span style="white-space:pre" class=""> </span>While running pass #10 SILModuleTransform ""Access Enforcement Selection"".</i></div></div><div class=""><br class=""></div><div class="">It fails every time and the same way in several functions, but not all functions.<br class=""></div><div class="">I tried to create a simple repro with the same function signature, but I can't get the simple case to fail.</div><div class="">A debug build isn't doing whole-module-optimization, so that's not it</div><div class=""><br class=""></div><div class="">Ideas anyone?</div><div class=""><br class=""></div><div class="">Who owns the LLDBFrontend?</div><div class=""><br class=""></div><div class="">Thanks, Ed</div></div>
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