<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="" applecontenteditable="true"><div class="">Hi,</div><div class=""><br class=""></div><div class="">Does Expr::isIntegerConstantExpr fit your need?</div><div class=""><br class=""></div><div class="">vedant</div><br class=""><div><blockquote type="cite" class=""><div class="">On May 24, 2017, at 4:40 AM, 陳韋任 via cfe-dev <<a href="mailto:cfe-dev@lists.llvm.org" class="">cfe-dev@lists.llvm.org</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class=""><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Hi All,</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br class=""></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"> I have builtin functions whose argument could be variable or immediate (constant), and I would like to</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">check the range of argument if it's immediate. Sema::SemaBuiltinConstantArgRange [1] more or less</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">fits my need. But seems it requires the argument must be immediate, it will throw "argument must be</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">constant" otherwise.</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br class=""></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"> I am wondering if there is other function achieve my goal, or my understanding about SemaBuiltinConstantArgRange</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">is wrong. Thanks.</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br class=""></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">[1] <a href="https://clang.llvm.org/doxygen/SemaChecking_8cpp_source.html" class="">https://clang.llvm.org/doxygen/SemaChecking_8cpp_source.html</a></div>
<div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br class=""></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Regards,</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">chenwj</div><div class=""><br class=""></div>-- <br class=""><div class="gmail_signature"><div dir="ltr" class=""><div class="">Wei-Ren Chen (陳韋任)<br class="">Homepage: <a href="https://people.cs.nctu.edu.tw/~chenwj" target="_blank" class="">https://people.cs.nctu.edu.tw/~chenwj</a></div></div></div>
</div>
_______________________________________________<br class="">cfe-dev mailing list<br class=""><a href="mailto:cfe-dev@lists.llvm.org" class="">cfe-dev@lists.llvm.org</a><br class="">http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-dev<br class=""></div></blockquote></div><br class=""></body></html>