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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - extern thread_local int var -- compilation fails on access of var"
href="http://llvm.org/bugs/show_bug.cgi?id=18986">18986</a>
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<th>Summary</th>
<td>extern thread_local int var -- compilation fails on access of var
</td>
</tr>
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<th>Product</th>
<td>clang
</td>
</tr>
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<th>Version</th>
<td>trunk
</td>
</tr>
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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>
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<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>LLVM Codegen
</td>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>ariane@stack.nl
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
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<div>
<pre>Created <span class=""><a href="attachment.cgi?id=12158" name="attach_12158" title="Test case (compilation only)">attachment 12158</a> <a href="attachment.cgi?id=12158&action=edit" title="Test case (compilation only)">[details]</a></span>
Test case (compilation only)
Compiling the included file with clang fails, while attempting to resolve a TLS
address lookup.
Affected platform: amd64; Note that i386 is not affected.
Tested on MacOSX.
Compiler output:
fatal error: error in backend: Cannot select: 0x7fafec81a310: i64 =
X86ISD::WrapperRIP 0x7fafec819f10 [ORD=2] [ID=7]
0x7fafec819f10: i64 = TargetGlobalTLSAddress<i32* @v> 0 [TF=10] [ORD=2]
[ID=5]
In function: _Z3foov
Compiler invocation:
"/Users/ariane/programming/ilias_os/compiler/build/install/bin/clang-3.5" -cc1
-triple amd64 -emit-obj -disable-free -disable-llvm-verifier -main-file-name
cstdlib.cc -mrelocation-model static -mdisable-fp-elim -fmath-errno
-masm-verbose -mconstructor-aliases -munwind-tables -mcode-model large
-target-cpu x86-64 -disable-red-zone -nostdsysteminc -nobuiltininc
-sys-header-deps -D "_KERNEL=1" -O3 -Wno-tautological-compare
-Wno-c++1y-extensions -std=c++11 -fdeprecated-macro -ferror-limit 19
-fmessage-length 130 -ftls-model=initial-exec -ffreestanding -mstackrealign
-fobjc-runtime=gcc -fcxx-exceptions -fexceptions -fdiagnostics-show-option
-fcolor-diagnostics -vectorize-loops -vectorize-slp -x c++ -o test.o test.cc
Notes:
compiler invocation exits with status code 70. Assuming use of sysexits.h,
this is EX_SOFTWARE.</pre>
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