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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 - "Error while trying to spill R4 from class GPR: Cannot scavenge register without an emergency spill slot" when building webrtc for arm"
href="https://bugs.llvm.org/show_bug.cgi?id=32084">32084</a>
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<th>Summary</th>
<td>"Error while trying to spill R4 from class GPR: Cannot scavenge register without an emergency spill slot" when building webrtc for arm
</td>
</tr>
<tr>
<th>Product</th>
<td>libraries
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
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<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>Linux
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>enhancement
</td>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>Backend: ARM
</td>
</tr>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>nicolasweber@gmx.de
</td>
</tr>
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=18030" name="attach_18030" title="repro">attachment 18030</a> <a href="attachment.cgi?id=18030&action=edit" title="repro">[details]</a></span>
repro
~/src/llvm-build-nolibcxx/bin/clang -cc1 -triple thumbv7--linux-gnueabihf
-emit-obj -mrelax-all -mrelocation-model pic -pic-level 2 -mthread-model posix
-mdisable-fp-elim -relaxed-aliasing -fmath-errno -masm-verbose
-mconstructor-aliases -munwind-tables -target-cpu cortex-a8 -target-feature
-fp-only-sp -target-feature -d16 -target-feature +vfp3 -target-feature -fp16
-target-feature -vfp4 -target-feature -fp-armv8 -target-feature +neon
-target-feature -crypto -target-abi aapcs-linux -mfloat-abi hard -v
-dwarf-column-info -debug-info-kind=limited -dwarf-version=4
-debugger-tuning=gdb -O0 -std=gnu++11 -fdeprecated-macro -fvisibility hidden
-fvisibility-inlines-hidden -pthread -stack-protector 1
-stack-protector-buffer-size 4 -fallow-half-arguments-and-returns -fno-rtti
-fno-signed-char -fobjc-runtime=gcc -fdiagnostics-show-option
-fcolor-diagnostics -o test.o -x c++ ~/Downloads/preprocessed_source.cpp
clang -cc1 version 5.0.0 based upon LLVM 5.0.0svn default target
x86_64-unknown-linux-gnu
#include "..." search starts here:
End of search list.
fatal error: error in backend: Error while trying to spill R4 from class GPR:
Cannot scavenge register without an emergency spill slot!</pre>
</div>
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