[LLVMbugs] [Bug 12593] New: TLS for PowerPC not supported

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=12593

             Bug #: 12593
           Summary: TLS for PowerPC not supported
           Product: libraries
           Version: trunk
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Backend: PowerPC
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: ggreif at gmail.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified


Created attachment 8410
  --> http://llvm.org/bugs/attachment.cgi?id=8410
C reproduction

Small testcase:
(attached)

------------------------------
$ cat tls-test.c
static __thread int sock = -1;

int main(void)
{
  return sock;
}
------------------------------

With a PPC-configured Clang I get

$ clang tls-test.c
TLS not implemented for PPC
UNREACHABLE executed at PPCISelLowering.cpp:4562!
0  clang           0x0000000002438fc9
1  clang           0x0000000002438dbc
2  libpthread.so.0 0x000000375a80eb70
3  libc.so.6       0x0000003759c30265 gsignal + 53
4  libc.so.6       0x0000003759c31d10 abort + 272
5  clang           0x00000000024206f1
6  clang           0x0000000001b7ed10
llvm::PPCTargetLowering::LowerOperation(llvm::SDValue, llvm::SelectionDAG&)
const + 306
7  clang           0x0000000001cbd894
8  clang           0x0000000001cb74d2
9  clang           0x0000000001cdcbf2 llvm::SelectionDAG::Legalize() + 58
10 clang           0x0000000001c71d48
llvm::SelectionDAGISel::CodeGenAndEmitDAG() + 2772
11 clang           0x0000000001c70f16
llvm::SelectionDAGISel::SelectBasicBlock(llvm::ilist_iterator<llvm::Instruction
const>, llvm::ilist_iterator<llvm::Instruction const>, bool&) + 258
12 clang           0x0000000001c73cba
llvm::SelectionDAGISel::SelectAllBasicBlocks(llvm::Function const&) + 2918
13 clang           0x0000000001c703f8
llvm::SelectionDAGISel::runOnMachineFunction(llvm::MachineFunction&) + 902

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