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<base href="https://bugs.llvm.org/">
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<body><table border="1" cellspacing="0" cellpadding="8">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - ICE when compiling with -g3 at -O0"
href="https://bugs.llvm.org/show_bug.cgi?id=52483">52483</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>ICE when compiling with -g3 at -O0
</td>
</tr>
<tr>
<th>Product</th>
<td>libraries
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</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>enhancement
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>Backend: X86
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>tlwang@uwaterloo.ca
</td>
</tr>
<tr>
<th>CC</th>
<td>cnsun@uwaterloo.ca, craig.topper@gmail.com, llvm-bugs@lists.llvm.org, llvm-dev@redking.me.uk, pengfei.wang@intel.com, spatel+llvm@rotateright.com
</td>
</tr></table>
<p>
<div>
<pre>The following program compiles at -O0 without -g3, but ICE's when you add the
-g3 flag.
$ clang-trunk -v
clang version 14.0.0 (<a href="https://github.com/llvm/llvm-project.git">https://github.com/llvm/llvm-project.git</a>
3330a6670ee8d725f16c61fa127ba93613f1fc1f)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /home/cnsun/usr/bin
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/10
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/8
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/9
Selected GCC installation: /usr/lib/gcc/x86_64-linux-gnu/10
Candidate multilib: .;@m64
Candidate multilib: 32;@m32
Candidate multilib: x32;@mx32
Selected multilib: .;@m64
$
$ cat line_program-234c9c.c
a() {
for (;; 1)
# 0
{
}
}
main() {}
$
$ clang-trunk -w -O0 -g3 line_program-234c9c.c
cannot have column info without line info
!15 = distinct !DILexicalBlock(scope: !16, file: !1, column: 3)
cannot have column info without line info
!15 = distinct !DILexicalBlock(scope: !16, file: !1, column: 3)
fatal error: error in backend: Broken module found, compilation aborted!
clang-14: error: clang frontend command failed with exit code 70 (use -v to see
invocation)
clang version 14.0.0 (<a href="https://github.com/llvm/llvm-project.git">https://github.com/llvm/llvm-project.git</a>
3330a6670ee8d725f16c61fa127ba93613f1fc1f)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /home/cnsun/usr/bin
clang-14: note: diagnostic msg:
********************
PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang-14: note: diagnostic msg: /tmp/line_program-234c9c-56d2f2.c
clang-14: note: diagnostic msg: /tmp/line_program-234c9c-56d2f2.sh
clang-14: note: diagnostic msg:
********************
$
$ clang-trunk -w -O0 line_program-234c9c.c
$</pre>
</div>
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