<div dir="ltr">Replying on llvm-dev, since I mainly want to brainstorm the IR attribute name...<div><br></div><div>This attribute is really a promise that the IR in this function obeys certain invariants. In this case, it's that every virtual pointer load uses a particular pattern to support a C++-specific optimization. That suggests a name something along the lines of "lso_invariants" (language-specific optimization = LSO) or "opt_invariants_preserved". What do you think of those names or that direction?</div></div><br><div class="gmail_quote"><div dir="ltr">On Sun, Dec 2, 2018 at 9:47 AM Piotr Padlewski via llvm-dev <<a href="mailto:llvm-dev@lists.llvm.org">llvm-dev@lists.llvm.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div dir="ltr"><div dir="ltr">Hi folks,</div><div><br></div><div>please check out our RFC: Supported Optimizations attribute</div><div><br></div><div dir="ltr"><a href="https://docs.google.com/document/d/1s0n-JVaSNML1Z9SCZVg2bgisxswIJAK2Tp9DahucW10/edit?usp=sharing" target="_blank">https://docs.google.com/document/d/1s0n-JVaSNML1Z9SCZVg2bgisxswIJAK2Tp9DahucW10/edit?usp=sharing</a><br></div><div dir="ltr"><br></div><div>Pasting it here for the record:</div><div><br></div><div><span id="m_7146287986996590205gmail-docs-internal-guid-aca276f4-7fff-eba6-f24d-775cbad7dd3d"><p dir="ltr" style="text-align:center;line-height:1.38;margin-top:0pt;margin-bottom:3pt"><span style="font-size:26pt;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">RFC: supported_optimizations attribute</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:16pt;text-align:center"><span style="font-size:15pt;font-family:Arial;color:rgb(102,102,102);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">Piotr Padlewski - </span><a href="mailto:piotr.padlewski@gmail.com" style="text-decoration-line:none" target="_blank"><span style="font-size:15pt;font-family:Arial;background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;text-decoration-line:underline;vertical-align:baseline;white-space:pre-wrap">piotr.padlewski@gmail.com</span><span style="font-size:15pt;font-family:Arial;color:rgb(102,102,102);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"><br class="m_7146287986996590205gmail-kix-line-break"></span></a><span style="font-size:15pt;font-family:Arial;color:rgb(102,102,102);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">Krzysztof Pszeniczny - </span><a href="mailto:kpszeniczny@google.com" style="text-decoration-line:none" target="_blank"><span style="font-size:15pt;font-family:Arial;background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;text-decoration-line:underline;vertical-align:baseline;white-space:pre-wrap">kpszeniczny@google.com</span><span style="font-size:15pt;font-family:Arial;color:rgb(102,102,102);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"><br class="m_7146287986996590205gmail-kix-line-break"></span></a><span style="font-size:15pt;font-family:Arial;color:rgb(102,102,102);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">December 2018</span></p><br><h1 dir="ltr" style="line-height:1.38;margin-top:20pt;margin-bottom:6pt"><span style="font-size:20pt;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:400;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">Introduction</span></h1><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;text-align:justify"><span style="font-size:11pt;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">Sometimes a possible class of optimizations requires very precise use of metadata and/or intrinsics, at least to achieve a clean implementation thereof.</span></p><br><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;text-align:justify"><span style="font-size:11pt;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">Our primary example is devirtualization[</span><a href="https://docs.google.com/document/d/16GVtCpzK8sIHNc2qZz6RN8amICNBtvjWUod2SujZVEo/edit" style="text-decoration-line:none" target="_blank"><span style="font-size:11pt;font-family:Arial;background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;text-decoration-line:underline;vertical-align:baseline;white-space:pre-wrap">RFC: Devirtualization v2</span></a><span style="font-size:11pt;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">], which requires that the LLVM IR be annotated with certain intrinsic calls, viz. </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(0,0,0);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">launder.invariant.group</span><span style="font-size:11pt;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"> and </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(0,0,0);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">strip.invariant.group</span><span style="font-size:11pt;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">, in certain places, e.g. when the dynamic type of an object changes.</span></p><br><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;text-align:justify"><span style="font-size:11pt;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">This currently makes it impossible to merge IR created with this kind of optimization in mind and without it, as this can lead to miscompilation when the optimizer relies on the lack of intrinsics and/or metadata to make certain assumptions about the code in question.  For now, in case of devirtualization, we plainly refuse to merge such pieces of IR.  This predominantly affects cross-language link-time optimization.</span></p><h1 dir="ltr" style="line-height:1.38;margin-top:20pt;margin-bottom:6pt"><span style="font-size:20pt;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:400;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">Solution</span></h1><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;text-align:justify"><span style="font-size:11pt;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">We propose a fine-grained, function-level solution to this problem, originally suggested by John McCall: mark each function with a list of such optimization requirements it complies with, by the means of an attribute for now called </span><span style="font-size:11pt;font-family:"Courier New";color:rgb(0,0,0);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">supported_optimizations</span><span style="font-size:11pt;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">.  The exact naming of this attribute is of course subject to bikeshedding, so we kindly request the community to provide us with a better name, if found.</span></p><br><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;text-align:justify"><span style="font-size:11pt;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">When performing inter-procedural optimizations (mostly inlining), the list of supported optimizations by the both functions should be considered to be to the intersection of their previous lists of supported optimizations.  This effectively hinders any optimization relying on precise annotations from happening if such precise annotations can no longer be guaranteed.</span></p><br><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;text-align:justify"><span style="font-size:11pt;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">More precisely, when doing an IPO other than inlining, such a pass must treat the functions in question as if they had the supported optimizations lists set to the intersection of their original ones.  This in general obviously does not require modifying those lists.</span></p><br><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;text-align:justify"><span style="font-size:11pt;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">In the case of inlining, the list of optimizations supported by the callee is left intact, but the list of optimizations supported by the caller must be set to the said intersection.</span></p><br><h1 dir="ltr" style="line-height:1.38;margin-top:20pt;margin-bottom:6pt;text-align:justify"><span style="font-size:20pt;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:400;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">invariant.group</span></h1><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;text-align:justify"><span style="font-size:11pt;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">The </span><span style="font-size:11pt;font-family:"Courier New";color:rgb(0,0,0);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">!invariant.group</span><span style="font-size:11pt;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"> metadata should be equipped with an argument referring to the supported_optimization it is related to. In the existing case, it will be set to </span><span style="font-size:11pt;font-family:"Courier New";color:rgb(0,0,0);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">"clang.cxx.devirtualization"</span><span style="font-size:11pt;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">.  If this supported_optimization is not present in the list of optimizations supported by the enclosing function, the </span><span style="font-size:11pt;font-family:"Courier New";color:rgb(0,0,0);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">!invariant.group</span><span style="font-size:11pt;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"> metadata has no effect and cannot be relied upon by the optimizer.  Of course, in this case the metadata in question is not useful anymore and can be safely removed.  We kindly thank Richard Smith for suggesting this approach.</span></p><br><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;text-align:justify"><span style="font-size:11pt;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">As a transitional measure and for backwards compatibility reasons, any </span><span style="font-size:11pt;font-family:"Courier New";color:rgb(0,0,0);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">!invariant.group</span><span style="font-size:11pt;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"> metadata with an empty argument (i.e. as before this RFC), shall not be subject to the above restrictions and shall remain applicable even when there is no </span><span style="font-size:11pt;font-family:"Courier New";color:rgb(0,0,0);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">supported_optimizations</span><span style="font-size:11pt;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"> list provided for the enclosing function.</span></p><h1 dir="ltr" style="line-height:1.38;margin-top:20pt;margin-bottom:6pt;text-align:justify"><span style="font-size:20pt;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:400;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">Example:</span></h1><p dir="ltr" style="line-height:1.32955;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Inconsolata;color:rgb(0,136,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">define</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"> </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,153);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">void</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"> </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(221,119,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">@with_devirtualization</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">(</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(0,136,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">i8</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">* </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(153,102,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">%p</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">) </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(255,0,0);background-color:rgb(255,170,170);font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">supported_optimizations</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"> = </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:rgb(255,240,240);font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">"clang.cxx.devirtualization"</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"> {</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"><br class="m_7146287986996590205gmail-kix-line-break"></span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">  </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(153,102,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">%v1</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"> = </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(0,136,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">load</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"> </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(0,136,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">i8</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">, </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(0,136,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">i8</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">* </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(153,102,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">%p</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">, </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(153,102,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">!invariant.group</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"> </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(153,102,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">!0</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"><br class="m_7146287986996590205gmail-kix-line-break"></span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">  </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(153,102,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">%p2</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"> = </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(0,136,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">call</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"> </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(0,136,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">i8</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">* </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(221,119,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">@llvm.launder.invariant.group.p0i8</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">(</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(0,136,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">i8</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">* </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(153,102,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">%p</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">)</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"><br class="m_7146287986996590205gmail-kix-line-break"></span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">  </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(0,136,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">call</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"> </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,153);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">void</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"> </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(221,119,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">@without_devirtualization</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">(</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(0,136,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">i8</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">* </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(153,102,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">%p</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">, </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(0,136,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">i8</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">* </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(153,102,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">%p2</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">)</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"><br class="m_7146287986996590205gmail-kix-line-break"></span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">  </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(153,102,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">%v2</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"> = </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(0,136,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">load</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"> </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(0,136,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">i8</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">, </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(0,136,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">i8</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">* </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(153,102,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">%p2</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">, </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(153,102,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">!invariant.group</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"> </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(153,102,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">!0</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"><br class="m_7146287986996590205gmail-kix-line-break"></span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">  </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(0,136,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">ret</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"> </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,153);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">void</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"><br class="m_7146287986996590205gmail-kix-line-break"></span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">}</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"><br class="m_7146287986996590205gmail-kix-line-break"></span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"><br class="m_7146287986996590205gmail-kix-line-break"></span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(0,136,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">define</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"> </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,153);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">void</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"> </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(221,119,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">@without_devirtualization</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">(</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(0,136,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">i8</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">* </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(153,102,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">%p</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">, </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(0,136,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">i8</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">* </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(153,102,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">%p2</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">) {</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"><br class="m_7146287986996590205gmail-kix-line-break"></span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">   </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(153,102,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">%b</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"> = </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(0,136,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">icmp</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"> </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(0,136,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">eq</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"> </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(0,136,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">i8</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">* </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(153,102,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">%p</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">, </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(153,102,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">%p2</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"><br class="m_7146287986996590205gmail-kix-line-break"></span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">   </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(0,136,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">call</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"> </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,153);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">void</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"> </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(221,119,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">@llvm.assume</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">(</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(0,136,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">i1</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"> </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(153,102,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">%b</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">)</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"><br class="m_7146287986996590205gmail-kix-line-break"></span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">   </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(0,136,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">ret</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"> </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,153);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">void</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"><br class="m_7146287986996590205gmail-kix-line-break"></span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">}</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"><br class="m_7146287986996590205gmail-kix-line-break"></span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"><br class="m_7146287986996590205gmail-kix-line-break"></span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(153,102,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">!0</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"> = !{</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(153,102,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">!"clang.cxx.devirtualization"</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">}</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"><br class="m_7146287986996590205gmail-kix-line-break"></span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(0,136,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">declare</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"> </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,153);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">void</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"> </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(221,119,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">@llvm.assume</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">(</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(0,136,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">i1</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">)</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"><br class="m_7146287986996590205gmail-kix-line-break"></span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(0,136,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">declare</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"> </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(0,136,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">i8</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">* </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(221,119,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">@llvm.launder.invariant.group.p0i8</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">(</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(0,136,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">i8</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">*)</span></p><br><h2 dir="ltr" style="line-height:1.38;margin-top:18pt;margin-bottom:6pt"><span style="font-size:16pt;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:400;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">After inlining:</span></h2><p dir="ltr" style="line-height:1.32955;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Inconsolata;color:rgb(0,136,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">define</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"> </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,153);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">void</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"> </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(221,119,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">@with_devirtualization</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">(</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(0,136,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">i8</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">* </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(153,102,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">%p</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">) {</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"><br class="m_7146287986996590205gmail-kix-line-break"></span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">  </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(136,136,136);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">; !invariant.group is inactive now, so it can be stripped.</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"><br class="m_7146287986996590205gmail-kix-line-break"></span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">  </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(153,102,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">%v1</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"> = </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(0,136,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">load</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"> </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(0,136,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">i8</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">, </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(0,136,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">i8</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">* </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(153,102,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">%p</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">, </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(153,102,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">!invariant.group</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"> </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(153,102,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">!0</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"><br class="m_7146287986996590205gmail-kix-line-break"></span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">  </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(153,102,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">%p2</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"> = </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(0,136,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">call</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"> </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(0,136,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">i8</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">* </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(221,119,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">@llvm.launder.invariant.group.p0i8</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">(</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(0,136,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">i8</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">* </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(153,102,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">%p</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">)</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"><br class="m_7146287986996590205gmail-kix-line-break"></span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">  </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(153,102,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">%b</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"> = </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(0,136,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">icmp</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"> </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(0,136,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">eq</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"> </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(0,136,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">i8</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">* </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(153,102,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">%p</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">, </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(153,102,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">%p2</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"><br class="m_7146287986996590205gmail-kix-line-break"></span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">  </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(0,136,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">call</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"> </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,153);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">void</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"> </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(221,119,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">@llvm.assume</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">(</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(0,136,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">i1</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"> </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(153,102,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">%b</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">)</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"><br class="m_7146287986996590205gmail-kix-line-break"></span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">  </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(153,102,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">%v2</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"> = </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(0,136,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">load</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"> </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(0,136,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">i8</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">, </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(0,136,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">i8</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">* </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(153,102,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">%p2</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">, </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(153,102,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">!invariant.group</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"> </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(153,102,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">!0</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"><br class="m_7146287986996590205gmail-kix-line-break"></span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">  </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(0,136,0);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">ret</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"> </span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,153);background-color:transparent;font-weight:700;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">void</span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"><br class="m_7146287986996590205gmail-kix-line-break"></span><span style="font-size:11pt;font-family:Inconsolata;color:rgb(51,51,51);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">}</span></p><br><h2 dir="ltr" style="line-height:1.38;margin-top:18pt;margin-bottom:6pt"><span style="font-size:16pt;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:400;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">Possible extensions</span></h2><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;text-align:justify"><span style="font-size:11pt;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">Instead of indiscriminately taking the intersection of supported optimizations' lists, we may imagine that some of such optimizations may be able to provide a conservative set of annotations to a function lacking them.  By doing so, we may retain at least some level of information available to the optimizer, by preserving the annotations already present in the optimization-compliant function.</span></p><br><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;text-align:justify"><span style="font-size:11pt;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">For example, devirtualization may conservatively pass every load and function argument through a strip and every store and return value through a launder, which is a way of conservatively making an arbitrary function compliant with the requirements of this particular optimization.</span></p><h2 dir="ltr" style="line-height:1.38;margin-top:18pt;margin-bottom:6pt"><span style="font-size:16pt;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:400;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">Bikeshedding</span></h2><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">Other possible names:</span></p><ul style="margin-top:0pt;margin-bottom:0pt"><li dir="ltr" style="list-style-type:disc;font-size:11pt;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">compilant_with</span></p></li><li dir="ltr" style="list-style-type:disc;font-size:11pt;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap"><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;background-color:transparent;font-variant-numeric:normal;font-variant-east-asian:normal;vertical-align:baseline;white-space:pre-wrap">brittle_representations (John McCall's original suggestion)</span></p></li></ul></span></div></div></div>
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