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<base href="https://bugs.llvm.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Can't override default max nesting depth for integrated assembly with clang frontend"
href="https://bugs.llvm.org/show_bug.cgi?id=44017">44017</a>
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<th>Summary</th>
<td>Can't override default max nesting depth for integrated assembly with clang frontend
</td>
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>9.0
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>All
</td>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>enhancement
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>Frontend
</td>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>renat@idrisov.info
</td>
</tr>
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org, neeilans@live.com, richard-llvm@metafoo.co.uk
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<div>
<pre>Created <span class=""><a href="attachment.cgi?id=22818" name="attach_22818" title="Sample program">attachment 22818</a> <a href="attachment.cgi?id=22818&action=edit" title="Sample program">[details]</a></span>
Sample program
Hi All,
I can't find a way to override `-asm-macro-max-nesting-depth` with clang.
$ cat <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - Need to add product version numbers"
href="show_bug.cgi?id=1">bug1</a>.s
.macro FOO start, end
.if \start <= \end
nop
FOO %(\start+1), \end
.endif
.endm
LEAF(__test)
FOO 1 50
$ clang -x assembler-with-cpp -integrated-as -o <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - Need to add product version numbers"
href="show_bug.cgi?id=1">bug1</a>.obj <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - Need to add product version numbers"
href="show_bug.cgi?id=1">bug1</a>.s
...
<instantiation>:3:13: error: macros cannot be nested more than 20 levels deep.
Use -asm-macro-max-nesting-depth to increase this limit.
...
$ clang -x assembler-with-cpp -integrated-as -Xassembler
-asm-macro-max-nesting-depth=100 -o <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - Need to add product version numbers"
href="show_bug.cgi?id=1">bug1</a>.obj <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - Need to add product version numbers"
href="show_bug.cgi?id=1">bug1</a>.s
clang: error: unsupported argument '-asm-macro-max-nesting-depth=100' to option
'Xassembler'
$ clang --version
clang version 9.0.1-+2019110812332108004e858e4ac00-1~exp1~20191108215024.72
Target: x86_64-pc-linux-gnu
Thanks!</pre>
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