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<base href="http://llvm.org/bugs/" />
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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 --- - SIGABRT in PowerPC/PPCISelLowering.cpp taking the address of a TLS variable"
href="http://llvm.org/bugs/show_bug.cgi?id=18817">18817</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>SIGABRT in PowerPC/PPCISelLowering.cpp taking the address of a TLS variable
</td>
</tr>
<tr>
<th>Product</th>
<td>libraries
</td>
</tr>
<tr>
<th>Version</th>
<td>3.3
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>Backend: PowerPC
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>msebor@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Clang 3.3, 3.4, and the latest trunk abort on the small test case below. A
discussion of TLS support for PPC is in the now resolved <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - TLS for PowerPC not supported"
href="show_bug.cgi?id=12593">Bug 12593</a>.
$ cat u.c && clang -cc1 -triple powerpc-unknown-linux -S -o/dev/null u.c
void f (void) {
static __thread int i;
void *p = &i;
}
only local-exec is currently supported for ppc32
UNREACHABLE executed at
/scratch/msebor/llvm/RELEASE_33/lib/Target/PowerPC/PPCISelLowering.cpp:1451!
0 clang 0x00000000020f3d82 llvm::sys::PrintStackTrace(_IO_FILE*) +
34
1 clang 0x00000000020f3a14
2 libpthread.so.0 0x0000003cb8a0eb10
3 libc.so.6 0x0000003cb7e30265 gsignal + 53
4 libc.so.6 0x0000003cb7e31d10 abort + 272
5 clang 0x00000000020ddd0c
6 clang 0x00000000017c945e
llvm::PPCTargetLowering::LowerGlobalTLSAddress(llvm::SDValue,
llvm::SelectionDAG&) const + 2062
7 clang 0x00000000017dc6f5
llvm::PPCTargetLowering::LowerOperation(llvm::SDValue, llvm::SelectionDAG&)
const + 501
8 clang 0x00000000019d790b
9 clang 0x00000000019d9fe9 llvm::SelectionDAG::Legalize() + 457
10 clang 0x00000000019a3d20
llvm::SelectionDAGISel::CodeGenAndEmitDAG() + 768
11 clang 0x00000000019a6da7
llvm::SelectionDAGISel::SelectAllBasicBlocks(llvm::Function const&) + 1943
12 clang 0x00000000019a8329
llvm::SelectionDAGISel::runOnMachineFunction(llvm::MachineFunction&) + 777
13 clang 0x00000000017c1e93
14 clang 0x000000000208d6df
llvm::FPPassManager::runOnFunction(llvm::Function&) + 655
15 clang 0x000000000208dbab
llvm::FPPassManager::runOnModule(llvm::Module&) + 43
16 clang 0x000000000208de2b
llvm::MPPassManager::runOnModule(llvm::Module&) + 603
17 clang 0x000000000208e00f llvm::PassManagerImpl::run(llvm::Module&)
+ 223
18 clang 0x000000000094127c
clang::EmitBackendOutput(clang::DiagnosticsEngine&, clang::CodeGenOptions
const&, clang::TargetOptions const&, clang::LangOptions const&, llvm::Module*,
clang::BackendAction, llvm::raw_ostream*) + 2188
19 clang 0x000000000093f1ec
20 clang 0x0000000000aa59fb clang::ParseAST(clang::Sema&, bool, bool)
+ 507
21 clang 0x000000000093d82c clang::CodeGenAction::ExecuteAction() +
60
22 clang 0x00000000007cfce9 clang::FrontendAction::Execute() + 249
23 clang 0x00000000007b0510
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) + 352
24 clang 0x0000000000799515
clang::ExecuteCompilerInvocation(clang::CompilerInstance*) + 1797
25 clang 0x0000000000793ad8 cc1_main(char const**, char const**, char
const*, void*) + 1208
26 clang 0x0000000000775568 main + 2152
27 libc.so.6 0x0000003cb7e1d994 __libc_start_main + 244
28 clang 0x000000000079287d
Stack dump:
0. Program arguments:
/auto/compiler-dev/msebor/contrib/cel-5.50/llvm-3.3/bin/clang -cc1 -triple
powerpc-unknown-linux -S -o/dev/null u.c
1. <eof> parser at end of file
2. Code generation
3. Running pass 'Function Pass Manager' on module 'u.c'.
4. Running pass 'PowerPC DAG->DAG Pattern Instruction Selection' on function
'@f'
Aborted (core dumped)</pre>
</div>
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