<div dir="ltr">By mistake I committed several temporarily git CLs from my local branch. It is already reverted.<div><br></div></div><br><div class="gmail_quote"><div dir="ltr">On Thu, Jul 28, 2016 at 5:14 PM David Majnemer <<a href="mailto:david.majnemer@gmail.com">david.majnemer@gmail.com</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">This commit message isn't very enlightening.  What's going on?<div>Please strive for commit messages which are more descriptive.</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Jul 28, 2016 at 6:50 PM, Vitaly Buka via llvm-commits <span dir="ltr"><<a href="mailto:llvm-commits@lists.llvm.org" target="_blank">llvm-commits@lists.llvm.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Author: vitalybuka<br>
Date: Thu Jul 28 17:50:43 2016<br>
New Revision: 277066<br>
<br>
URL: <a href="http://llvm.org/viewvc/llvm-project?rev=277066&view=rev" rel="noreferrer" target="_blank">http://llvm.org/viewvc/llvm-project?rev=277066&view=rev</a><br>
Log:<br>
range<br>
<br>
Modified:<br>
    llvm/trunk/lib/Transforms/InstCombine/InstCombineCalls.cpp<br>
<br>
Modified: llvm/trunk/lib/Transforms/InstCombine/InstCombineCalls.cpp<br>
URL: <a href="http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/InstCombine/InstCombineCalls.cpp?rev=277066&r1=277065&r2=277066&view=diff" rel="noreferrer" target="_blank">http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/InstCombine/InstCombineCalls.cpp?rev=277066&r1=277065&r2=277066&view=diff</a><br>
==============================================================================<br>
--- llvm/trunk/lib/Transforms/InstCombine/InstCombineCalls.cpp (original)<br>
+++ llvm/trunk/lib/Transforms/InstCombine/InstCombineCalls.cpp Thu Jul 28 17:50:43 2016<br>
@@ -30,6 +30,8 @@ using namespace PatternMatch;<br>
<br>
 STATISTIC(NumSimplified, "Number of library calls simplified");<br>
<br>
+extern cl::opt<bool> ClUseAfterScope;<br>
+<br>
 /// Return the specified type promoted as it would be to pass though a va_arg<br>
 /// area.<br>
 static Type *getPromotedType(Type *Ty) {<br>
@@ -1209,6 +1211,10 @@ static bool removeTriviallyEmptyRange(In<br>
                                       unsigned EndID, InstCombiner &IC) {<br>
   assert(I.getIntrinsicID() == StartID &&<br>
          "Start intrinsic does not have expected ID");<br>
+  // Even if the range is empty asan need to poison memory to detect invalid<br>
+  // access latter.<br>
+  if (ClUseAfterScope)<br>
+    return false;<br>
   BasicBlock::iterator BI(I), BE(I.getParent()->end());<br>
   for (++BI; BI != BE; ++BI) {<br>
     if (auto *E = dyn_cast<IntrinsicInst>(BI)) {<br>
<br>
<br>
_______________________________________________<br>
llvm-commits mailing list<br>
<a href="mailto:llvm-commits@lists.llvm.org" target="_blank">llvm-commits@lists.llvm.org</a><br>
<a href="http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-commits" rel="noreferrer" target="_blank">http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-commits</a><br>
</blockquote></div><br></div>
</blockquote></div>