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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW " title="NEW --- - -Wpessimizing-move sometimes issued where -Wredundant-move would be appropriate" href="https://urldefense.proofpoint.com/v2/url?u=https-3A__llvm.org_bugs_show-5Fbug.cgi-3Fid-3D23819&d=AwMBaQ&c=8hUWFZcy2Z-Za5rBPlktOQ&r=pF93YEPyB-J_PERP4DUZOJDzFVX5ZQ57vQk33wu0vio&m=tVUizcVq57ldKYkF5ddEggoJ0ehfBbPOqnv0M0Ub6os&s=Fm0cY67iKzwMVuhaJ10LhvuH3dVXyd_F-uHNnMhFGHc&e=">23819</a>
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<th>Summary</th>
<td>-Wpessimizing-move sometimes issued where -Wredundant-move would be appropriate
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<th>Product</th>
<td>clang
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<th>Version</th>
<td>trunk
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Linux
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<th>Status</th>
<td>NEW
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<th>Severity</th>
<td>normal
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>C++11
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>richard-llvm@metafoo.co.uk
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<th>CC</th>
<td>dgregor@apple.com, llvmbugs@cs.uiuc.edu
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<th>Classification</th>
<td>Unclassified
</td>
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<p>
<div>
<pre>Case 1: "moving a temporary object prevents copy elision" diagnosed even though
no copy would be made anyway:
struct X {};
X g();
void h(X&&);
void f() { h(std::move(g())); }
Case 2: "moving a local object in a return statement prevents copy elision"
issued even though copy elision is not possible, because we're returning a
function parameter:
X f(X x) { return std::move(x); }
In both of these cases we should issue a -Wredundant-move warning instead.</pre>
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