<html>
<head>
<base href="http://llvm.org/bugs/" />
</head>
<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Assertion `(E->isGLValue() || E->getType()->isFunctionType() || E->getType()->isVoidType() || isa<CXXTemporaryObjectExpr>(E)) && "can't evaluate expression as an lvalue"' failed"
href="http://llvm.org/bugs/show_bug.cgi?id=15884">15884</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Assertion `(E->isGLValue() || E->getType()->isFunctionType() || E->getType()->isVoidType() || isa<CXXTemporaryObjectExpr>(E)) && "can't evaluate expression as an lvalue"' failed
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>-New Bugs
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>clang@martinien.de
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Hi,
the following code fails an assertion on current trunk. This did not happen a
few weeks ago.
struct Segment;
struct ld_Ref
{
const Segment* operator->() const;
};
struct Segment {
ld_Ref getNextAtomic() const;
};
void f()
{
unsigned long l;
const ld_Ref* segment = reinterpret_cast<const ld_Ref *>(l);
segment = &((*segment)->getNextAtomic());
}
fail.cpp:16:15: error: taking the address of a temporary object of type
'ld_Ref' [-Waddress-of-temporary]
segment = &((*segment)->getNextAtomic());
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~
clang: /local/mar_/llvmtrunk/tools/clang/lib/AST/ExprConstant.cpp:3225: bool
EvaluateLValue(const clang::Expr *, <anonymous>::LValue &,
<anonymous>::EvalInfo &): Assertion `(E->isGLValue() ||
E->getType()->isFunctionType() || E->getType()->isVoidType() ||
isa<CXXTemporaryObjectExpr>(E)) && "can't evaluate expression as an lvalue"'
failed.
16 clang 0x0000000001192625
_ZNK5clang4Expr19EvaluateForOverflowERKNS_10ASTContextEPN4llvm15SmallVectorImplISt4pairINS_14SourceLocationENS_17PartialDiagnosticEEEE
+ 309
17 clang 0x0000000000a11f8f
_ZN5clang4Sema19CheckForIntOverflowEPNS_4ExprE + 95
18 clang 0x0000000000b84729
_ZN5clang4Sema19ActOnFinishFullExprEPNS_4ExprENS_14SourceLocationEbb + 233
19 clang 0x0000000000c17297
_ZN5clang4Sema13ActOnExprStmtENS_12ActionResultIPNS_4ExprELb1EEE + 55
20 clang 0x00000000009bef51 _ZN5clang6Parser18ParseExprStatementEv +
689
1. fail.cpp:17:1: current parser token '}'
2. fail.cpp:13:1: parsing function body 'f'
3. fail.cpp:13:1: in compound statement ('{}')
clang version 3.3 (trunk 180834)
Target: x86_64-unknown-linux-gnu
Thread model: posix
Best regards,
Martin</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are on the CC list for the bug.</li>
</ul>
</body>
</html>