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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - 'register read -a' provides wrong values of FPU x87 Special Purpose Registers for x86_64-FreeBSD platform"
href="https://llvm.org/bugs/show_bug.cgi?id=25050">25050</a>
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<th>Summary</th>
<td>'register read -a' provides wrong values of FPU x87 Special Purpose Registers for x86_64-FreeBSD platform
</td>
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<th>Product</th>
<td>lldb
</td>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>FreeBSD
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>All Bugs
</td>
</tr>
<tr>
<th>Assignee</th>
<td>lldb-dev@lists.llvm.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>abhiinnitald@gmail.com
</td>
</tr>
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=15002" name="attach_15002" title="Source file (compiled to produce the failure)">attachment 15002</a> <a href="attachment.cgi?id=15002&action=edit" title="Source file (compiled to produce the failure)">[details]</a></span>
Source file (compiled to produce the failure)
Environment: FreeBSD 10.2-RELEASE on x86_64, Compiler: clang-3.7.0
LLDB : Built from source (Checked out from public repo; revision 248711)
Commands to compile inferior:
clang++ -g -O0 -std=c++11 -fno-builtin -m64 source.cpp -o a.out
Commands executed to pose the bug:
$ lldb a.out
(lldb) b 7
(lldb) run
(lldb) register read -a
(lldb) next
'next' instruction executes some assembly instructions to push float values
on 'st' stack
(lldb) register read -a
Value of fstat and ftag didn't change compared to their values in previous
register read -a command.
This bug is similar to <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - register read --all provides wrong values of FPU flags for x86_64 Linux platform"
href="show_bug.cgi?id=24457">bug 24457</a> but for FreeBSD platform.
I am working on it and submit a patch soon.</pre>
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