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<base href="https://bugs.llvm.org/">
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<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - clang6 segfaults with -mcpu=power9"
href="https://bugs.llvm.org/show_bug.cgi?id=37330">37330</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>clang6 segfaults with -mcpu=power9
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>6.0
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</td>
</tr>
<tr>
<th>OS</th>
<td>FreeBSD
</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>-New Bugs
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>kennethsalerno@yahoo.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=20259" name="attach_20259" title="source file to reproduce error">attachment 20259</a> <a href="attachment.cgi?id=20259&action=edit" title="source file to reproduce error">[details]</a></span>
source file to reproduce error
The same compilation without "-mcpu=power9" succeeds.
# Crash reproducer for clang version 6.0.0 (tags/RELEASE_600/final)
# Driver args:
"-B" "/usr/local/bin/powerpc64-unknown-freebsd11.1-" \
"--target=powerpc64-unknown-freebsd11.1" \
"--sysroot=/usr/obj/powerpc.powerpc64/usr/src/tmp" \
"-B" "/usr/obj/powerpc.powerpc64/usr/src/tmp/usr/bin" \
"-O2" \
"-fomit-frame-pointer" \
"-pipe" \
"-fno-stack-protector" \
"-D" "_FORTIFY_SOURCE=0" \
"-fno-asynchronous-unwind-tables" \
"-mcpu=power9" \
"-mtune=power9" \
"-m32" \
"-I" "." \
"-I" "/usr/src/sys/boot/libstand32/../../../lib/libstand" \
"-D" "BZ_NO_STDIO" \
"-D" "BZ_NO_COMPRESS" \
"-D" "HAVE_MEMCPY" \
"-I"
"/usr/src/sys/boot/libstand32/../../../lib/libstand/../../contrib/zlib" \
"-ffreestanding" \
"-Wformat" \
"-msoft-float" \
"-D" "_STANDALONE" \
"-MD" \
"-MF" ".depend.adler32.o" \
"-MT" "adler32.o" \
"-std=gnu99" \
"-Wno-pointer-sign" \
"-Wno-empty-body" \
"-Wno-string-plus-int" \
"-Wno-unused-const-variable" \
"-Wno-tautological-compare" \
"-Wno-unused-value" \
"-Wno-parentheses-equality" \
"-Wno-unused-function" \
"-Wno-enum-conversion" \
"-Wno-unused-local-typedef" \
"-Wno-address-of-packed-member" \
"-Wno-switch" \
"-Wno-switch-enum" \
"-Wno-knr-promoted-parameter" \
"-Wno-parentheses" \
"-Qunused-arguments" \
"-c" \
"/usr/src/sys/boot/libstand32/../../../lib/libstand/../../contrib/zlib/adler32.c"
\
"-o" "adler32.o"
# Original command:
"/usr/local/llvm60/bin/clang-6.0" \
"-cc1" \
"-triple" "powerpc-unknown-freebsd11.1" \
"-emit-obj" \
"-disable-free" \
"-main-file-name" "adler32.c" \
"-mrelocation-model" "static" \
"-mthread-model" "posix" \
"-masm-verbose" \
"-mconstructor-aliases" \
"-ffreestanding" \
"-target-cpu" "pwr9" \
"-target-feature" \
"-hard-float" \
"-msoft-float" \
"-mfloat-abi" "soft" \
"-dwarf-column-info" \
"-debugger-tuning=gdb" \
"-coverage-notes-file"
"/usr/obj/powerpc.powerpc64/usr/src/sys/boot/libstand32/adler32.gcno" \
"-resource-dir" "/usr/local/llvm60/lib/clang/6.0.0" \
"-dependency-file" ".depend.adler32.o" \
"-sys-header-deps" \
"-MT" "adler32.o" \
"-D" "_FORTIFY_SOURCE=0" \
"-I" "." \
"-I" "/usr/src/sys/boot/libstand32/../../../lib/libstand" \
"-D" "BZ_NO_STDIO" \
"-D" "BZ_NO_COMPRESS" \
"-D" "HAVE_MEMCPY" \
"-I"
"/usr/src/sys/boot/libstand32/../../../lib/libstand/../../contrib/zlib" \
"-D" "_STANDALONE" \
"-isysroot" "/usr/obj/powerpc.powerpc64/usr/src/tmp" \
"-O2" \
"-Wformat" \
"-Wno-pointer-sign" \
"-Wno-empty-body" \
"-Wno-string-plus-int" \
"-Wno-unused-const-variable" \
"-Wno-tautological-compare" \
"-Wno-unused-value" \
"-Wno-parentheses-equality" \
"-Wno-unused-function" \
"-Wno-enum-conversion" \
"-Wno-unused-local-typedef" \
"-Wno-address-of-packed-member" \
"-Wno-switch" \
"-Wno-switch-enum" \
"-Wno-knr-promoted-parameter" \
"-Wno-parentheses" \
"-std=gnu99" \
"-fdebug-compilation-dir" \
"/usr/obj/powerpc.powerpc64/usr/src/sys/boot/libstand32" \
"-ferror-limit" "19" \
"-fmessage-length" "0" \
"-fno-signed-char" \
"-fobjc-runtime=gnustep" \
"-fdiagnostics-show-option" \
"-vectorize-loops" \
"-vectorize-slp" \
"-o" "adler32.o" \
"-x" "c" \
"/usr/src/sys/boot/libstand32/../../../lib/libstand/../../contrib/zlib/adler32.c"
\
"/usr/local/llvm60/bin/clang-6.0" \
"-cc1" \
"-triple" "powerpc-unknown-freebsd11.1" \
"-emit-obj" \
"-disable-free" \
"-main-file-name" "adler32.c" \
"-mrelocation-model" "static" \
"-mthread-model" "posix" \
"-masm-verbose" \
"-mconstructor-aliases" \
"-ffreestanding" \
"-target-cpu" "pwr9" \
"-target-feature" \
"-hard-float" \
"-msoft-float" \
"-mfloat-abi" "soft" \
"-dwarf-column-info" \
"-debugger-tuning=gdb" \
"-coverage-notes-file"
"/usr/obj/powerpc.powerpc64/usr/src/sys/boot/libstand32/adler32.gcno" \
"-sys-header-deps" \
"-D" "_FORTIFY_SOURCE=0" \
"-D" "BZ_NO_STDIO" \
"-D" "BZ_NO_COMPRESS" \
"-D" "HAVE_MEMCPY" \
"-D" "_STANDALONE" \
"-O2" \
"-Wformat" \
"-Wno-pointer-sign" \
"-Wno-empty-body" \
"-Wno-string-plus-int" \
"-Wno-unused-const-variable" \
"-Wno-tautological-compare" \
"-Wno-unused-value" \
"-Wno-parentheses-equality" \
"-Wno-unused-function" \
"-Wno-enum-conversion" \
"-Wno-unused-local-typedef" \
"-Wno-address-of-packed-member" \
"-Wno-switch" \
"-Wno-switch-enum" \
"-Wno-knr-promoted-parameter" \
"-Wno-parentheses" \
"-std=gnu99" \
"-ferror-limit" "19" \
"-fmessage-length" "0" \
"-fno-signed-char" \
"-fobjc-runtime=gnustep" \
"-fdiagnostics-show-option" \
"-vectorize-loops" \
"-vectorize-slp" \
"-x" "c" \
"adler32-be93c8.c" \</pre>
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