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<base href="https://bugs.llvm.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - ICE with lambda capture & typeid of polymorphic class"
href="https://bugs.llvm.org/show_bug.cgi?id=50497">50497</a>
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<th>Summary</th>
<td>ICE with lambda capture & typeid of polymorphic class
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
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<th>Version</th>
<td>trunk
</td>
</tr>
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<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>Linux
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>C++
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>nathan@acm.org
</td>
</tr>
<tr>
<th>CC</th>
<td>blitzrakete@gmail.com, dgregor@apple.com, erik.pilkington@gmail.com, llvm-bugs@lists.llvm.org, richard-llvm@metafoo.co.uk
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<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=24895" name="attach_24895" title="testcase">attachment 24895</a> <a href="attachment.cgi?id=24895&action=edit" title="testcase">[details]</a></span>
testcase
Ran across this ICE:
<span class="quote">>bin/clang -cc1 ../bug.ii</span >
clang: /data/users/nathans/llvm/trunk/clang/lib/Sema/SemaExpr.cpp:18450: void
DoMarkVarDeclReferenced(clang::Sema &, clang::SourceLocation, clang::VarDecl *,
clang::Expr *): Assertion `(!E || isa<FunctionParmPackExpr>(E)) && "missing
non-odr-use marking for unevaluated decl ref"' failed.
PLEASE submit a bug report to <a href="https://bugs.llvm.org/">https://bugs.llvm.org/</a> and include the crash
backtrace, preprocessed source, and associated run script.
Stack dump:
0. Program arguments: bin/clang -cc1 ../bug.ii
1. ../bug.ii:16:7: current parser token ')'
2. ../bug.ii:10:1: parsing function body 'Foo'
3. ../bug.ii:10:1: in compound statement ('{}')
4. ../bug.ii:11:3: instantiating function definition 'Foo(Ex
*)::(anonymous class)::operator()<int>'
#0 0x00000000030a4eca llvm::sys::PrintStackTrace(llvm::raw_ostream&, int)
/data/users/nathans/llvm/trunk/llvm/lib/Support/Unix/Signals.inc:565:11
#1 0x00000000030a507b PrintStackTraceSignalHandler(void*)
/data/users/nathans/llvm/trunk/llvm/lib/Support/Unix/Signals.inc:632:1
#2 0x00000000030a3743 llvm::sys::RunSignalHandlers()
/data/users/nathans/llvm/trunk/llvm/lib/Support/Signals.cpp:76:5
#3 0x00000000030a57a5 SignalHandler(int)
/data/users/nathans/llvm/trunk/llvm/lib/Support/Unix/Signals.inc:407:1
#4 0x00007fc12dbadb20 __restore_rt sigaction.c:0:0
#5 0x00007fc12ce6837f raise (/lib64/libc.so.6+0x3737f)
#6 0x00007fc12ce52db5 abort (/lib64/libc.so.6+0x21db5)
#7 0x00007fc12ce52c89 _nl_load_domain.cold.0 loadmsgcat.c:0:0
#8 0x00007fc12ce60a76 .annobin___GI___assert_fail.end assert.c:0:0
#9 0x0000000006f56d20 DoMarkVarDeclReferenced(clang::Sema&,
clang::SourceLocation, clang::VarDecl*, clang::Expr*)
/data/users/nathans/llvm/trunk/clang/lib/Sema/SemaExpr.cpp:18451:5
#10 0x0000000006f5703f MarkExprReferenced(clang::Sema&, clang::SourceLocation,
clang::Decl*, clang::Expr*, bool)
/data/users/nathans/llvm/trunk/clang/lib/Sema/SemaExpr.cpp:18514:5
#11 0x0000000006f106ec clang::Sema::MarkDeclRefReferenced(clang::DeclRefExpr*,
clang::Expr const*)
/data/users/nathans/llvm/trunk/clang/lib/Sema/SemaExpr.cpp:18560:1
#12 0x000000000783c0f0 clang::TreeTransform<(anonymous
namespace)::TemplateInstantiator>::TransformDeclRefExpr(clang::DeclRefExpr*)
/data/users/nathans/llvm/trunk/clang/lib/Sema/TreeTransform.h:10228:12
...</pre>
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