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<base href="http://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Expression evaluation for function call to templated class doesn't work"
href="http://llvm.org/bugs/show_bug.cgi?id=16037">16037</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Expression evaluation for function call to templated class doesn't work
</td>
</tr>
<tr>
<th>Product</th>
<td>lldb
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</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>All Bugs
</td>
</tr>
<tr>
<th>Assignee</th>
<td>lldb-dev@cs.uiuc.edu
</td>
</tr>
<tr>
<th>Reporter</th>
<td>tareq.a.siraj@intel.com
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=10528" name="attach_10528" title="Reproducer source">attachment 10528</a> <a href="attachment.cgi?id=10528&action=edit" title="Reproducer source">[details]</a></span>
Reproducer source
Expression evaluation for a function call to a templated class seems to be
broken unless the same expression is used later in the body. Not sure if this
is a duplicate of 15879 or not.
Source:
struct Foo {
};
template <typename T>
class Ptr {
T Val;
public:
Ptr() : Val(T()) {}
Ptr(T x) : Val(x) {}
T get() const { return Val; }
};
typedef Ptr<Foo*> FooResult;
int main(void) {
FooResult f = new Foo();
// Uncommenting the following line seems to work.
//Foo *p = f.get();
return 0;
}
To reproduce:
clang++ bug.cpp -o bug -g3 && lldb bug
Current executable set to 'bug' (x86_64).
(lldb) breakpoint set -f bug.cpp -l 21
(lldb) process launch
Process 17771 launched: '/Users/tasiraj/dev/scratch/bug' (x86_64)
Process 17771 stopped
* thread #1: tid = 0x1c03, 0x0000000100000e9f bug`main + 47 at bug.cpp:21, stop
reason = breakpoint 1.1
frame #0: 0x0000000100000e9f bug`main + 47 at bug.cpp:21
18 FooResult f = new Foo();
19 // Uncommenting the following line seems to work.
20 //Foo *p = f.get();
-> 21 return 0;
22 }
(lldb) print f
(FooResult) $0 = {
(Foo *) Val = 0x00000001001000e0
}
(lldb) print f.get()
error: call to a function 'Ptr<Foo*>::get() const' that is not present in the
target
error: The expression could not be prepared to run in the target
versions (OSX):
clang --version
Apple LLVM version 4.2 (clang-425.0.24) (based on LLVM 3.2svn)
Target: x86_64-apple-darwin12.3.0
Thread model: posix
lldb --version
LLDB-179.1
OS: OSX 10.8.3, Linux</pre>
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