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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - clang hangs with simple input program"
href="https://bugs.llvm.org/show_bug.cgi?id=49178">49178</a>
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<th>Summary</th>
<td>clang hangs with simple input program
</td>
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>10.0
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Linux
</td>
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<th>Status</th>
<td>NEW
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>-New Bugs
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>zhan3299@purdue.edu
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<th>CC</th>
<td>htmldeveloper@gmail.com, llvm-bugs@lists.llvm.org, neeilans@live.com, richard-llvm@metafoo.co.uk
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<pre>Hi,
I have a simple program (which can be accepted by GCC). It will make clang
(version 6.0.0 - 10.0.0) hang for a very long time.
In my case, clang had not finished compilation in one hour.
=== detailed information ===
$ cat poc.cc
int a;
long b;
double c;
int main() { asm("" : "=rm"(a), "=d"(c) : "1"(b || 0)); }
$ gcc poc.cc
$ echo $?
0
$ clang poc.cc
# never end...</pre>
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