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<base href="https://llvm.org/bugs/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - clang crash emitting code for placement delete"
href="https://llvm.org/bugs/show_bug.cgi?id=24889">24889</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>clang crash emitting code for placement delete
</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>ethan54@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=14911" name="attach_14911" title="Source file that reproduces the issue">attachment 14911</a> <a href="attachment.cgi?id=14911&action=edit" title="Source file that reproduces the issue">[details]</a></span>
Source file that reproduces the issue
Ubuntu clang version 3.8.0-svn247666-1~exp1 (trunk) (based on LLVM 3.8.0)
The following (also attached) reproduces the issue:
#include <new>
class Test {
public:
Test() {}
static void New() {
char buf[1000];
new (buf) Test;
}
static void operator delete(void*, void*) throw() {}
static void operator delete(void*) throw() {}
};
int main(int argc, char** argv) {
Test::New();
return 0;
}
Compiling triggers a segfault:
0 libLLVM-3.8.so.1 0x00007fec5458fb58
llvm::sys::PrintStackTrace(llvm::raw_ostream&) + 56
1 libLLVM-3.8.so.1 0x00007fec5458f016 llvm::sys::RunSignalHandlers() + 54
2 libLLVM-3.8.so.1 0x00007fec5458f17b
3 libpthread.so.0 0x00007fec52b15d10
4 clang 0x0000000000a11d65
clang::CodeGen::CodeGenFunction::EmitCall(clang::CodeGen::CGFunctionInfo
const&, llvm::Value*, clang::CodeGen::ReturnValueSlot,
clang::CodeGen::CallArgList const&, clang::\
Decl const*, llvm::Instruction**) + 8101
5 clang 0x0000000000a5aaa1
6 clang 0x0000000000a5e401
7 clang 0x0000000000a20110
8 clang 0x0000000000a21931
clang::CodeGen::CodeGenFunction::PopCleanupBlock(bool) + 4337
9 clang 0x0000000000a22353
clang::CodeGen::CodeGenFunction::DeactivateCleanupBlock(clang::CodeGen::EHScopeStack::stable_iterator,
llvm::Instruction*) + 147
10 clang 0x0000000000a625ec
clang::CodeGen::CodeGenFunction::EmitCXXNewExpr(clang::CXXNewExpr const*) +
3708
11 clang 0x0000000000a7655c
12 clang 0x0000000000a76e70
clang::CodeGen::CodeGenFunction::EmitScalarExpr(clang::Expr const*, bool) + 64
13 clang 0x0000000000a413fa
clang::CodeGen::CodeGenFunction::EmitAnyExpr(clang::Expr const*,
clang::CodeGen::AggValueSlot, bool) + 90
14 clang 0x0000000000a4e9cf
clang::CodeGen::CodeGenFunction::EmitIgnoredExpr(clang::Expr const*) + 47
15 clang 0x000000000092efba
clang::CodeGen::CodeGenFunction::EmitStmt(clang::Stmt const*) + 202
16 clang 0x000000000092f3ff
clang::CodeGen::CodeGenFunction::EmitCompoundStmtWithoutScope(clang::CompoundStmt
const&, bool, clang::CodeGen::AggValueSlot) + 95
17 clang 0x0000000000952e82
clang::CodeGen::CodeGenFunction::EmitFunctionBody(clang::CodeGen::FunctionArgList&,
clang::Stmt const*) + 178
18 clang 0x0000000000959ca3
clang::CodeGen::CodeGenFunction::GenerateCode(clang::GlobalDecl,
llvm::Function*, clang::CodeGen::CGFunctionInfo const&) + 739
19 clang 0x000000000097f573
clang::CodeGen::CodeGenModule::EmitGlobalFunctionDefinition(clang::GlobalDecl,
llvm::GlobalValue*) + 307
20 clang 0x000000000097f910
clang::CodeGen::CodeGenModule::EmitGlobalDefinition(clang::GlobalDecl,
llvm::GlobalValue*) + 288
21 clang 0x000000000097fa82
clang::CodeGen::CodeGenModule::EmitDeferred() + 130
22 clang 0x000000000097fbc9 clang::CodeGen::CodeGenModule::Release()
+ 9
23 clang 0x00000000008da96e
24 clang 0x0000000000af178d clang::ParseAST(clang::Sema&, bool,
bool) + 893
25 clang 0x00000000007191ce clang::FrontendAction::Execute() + 302
26 clang 0x00000000006f2da9
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) + 313
27 clang 0x00000000006da143
clang::ExecuteCompilerInvocation(clang::CompilerInstance*) + 1843
28 clang 0x00000000006d2440 cc1_main(llvm::ArrayRef<char const*>,
char const*, void*) + 2336
29 clang 0x00000000006cfcc8 main + 1192
30 libc.so.6 0x00007fec52236a40 __libc_start_main + 240
31 clang 0x00000000006d14a9 _start + 41</pre>
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