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<base href="http://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Assertion in X86 backend when multiplying two i192 values"
href="http://llvm.org/bugs/show_bug.cgi?id=19797">19797</a>
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<tr>
<th>Summary</th>
<td>Assertion in X86 backend when multiplying two i192 values
</td>
</tr>
<tr>
<th>Product</th>
<td>libraries
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</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: X86
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>juergen@apple.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>The following simplified test case fails on X86 with an assertion:
define i192 @test(i192 %a, i192 %b) nounwind {
%1 = mul i192 %a, %b
ret i192 %1
}
.section __TEXT,__text,regular,pure_instructions
.macosx_version_min 13, 2
Assertion failed: (LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported MUL!"),
function ExpandIntRes_MUL, file
/x/src/trunk/llvm/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp, line 1950.
0 llc 0x00000001048736ae
llvm::sys::PrintStackTrace(__sFILE*) + 46
1 llc 0x00000001048739bb
PrintStackTraceSignalHandler(void*) + 27
2 llc 0x0000000104873d4c SignalHandler(int) + 412
3 libsystem_platform.dylib 0x00007fff957525aa _sigtramp + 26
4 llc 0x0000000104251a35
llvm::IntegerType::classof(llvm::Type const*) + 21
5 llc 0x00000001048739eb raise + 27
6 llc 0x0000000104873aa2 abort + 18
7 llc 0x0000000104873a81 __assert_rtn + 129
8 llc 0x00000001045fbcc6
llvm::DAGTypeLegalizer::ExpandIntRes_MUL(llvm::SDNode*, llvm::SDValue&,
llvm::SDValue&) + 1110
9 llc 0x00000001045f7168
llvm::DAGTypeLegalizer::ExpandIntegerResult(llvm::SDNode*, unsigned int) + 1400
10 llc 0x0000000104610309 llvm::DAGTypeLegalizer::run() +
937
11 llc 0x0000000104616102
llvm::SelectionDAG::LegalizeTypes() + 66
12 llc 0x00000001047606ba
llvm::SelectionDAGISel::CodeGenAndEmitDAG() + 3466
13 llc 0x000000010475f91d
llvm::SelectionDAGISel::SelectBasicBlock(llvm::ilist_iterator<llvm::Instruction
const>, llvm::ilist_iterator<llvm::Instruction const>, bool&) + 253
14 llc 0x000000010475f63b
llvm::SelectionDAGISel::SelectAllBasicBlocks(llvm::Function const&) + 5227
15 llc 0x000000010475cf6c
llvm::SelectionDAGISel::runOnMachineFunction(llvm::MachineFunction&) + 1228
16 llc 0x0000000103fb4a5e
llvm::MachineFunctionPass::runOnFunction(llvm::Function&) + 110
17 llc 0x00000001043a397b
llvm::FPPassManager::runOnFunction(llvm::Function&) + 427
18 llc 0x00000001043a3c88
llvm::FPPassManager::runOnModule(llvm::Module&) + 104
19 llc 0x00000001043a4694 (anonymous
namespace)::MPPassManager::runOnModule(llvm::Module&) + 1412
20 llc 0x00000001043a3f3e
llvm::legacy::PassManagerImpl::run(llvm::Module&) + 302
21 llc 0x00000001043a4e11
llvm::legacy::PassManager::run(llvm::Module&) + 33
22 llc 0x0000000103873f1a compileModule(char**,
llvm::LLVMContext&) + 7050
23 llc 0x0000000103872322 main + 226
24 libdyld.dylib 0x00007fff921ae5fd start + 1</pre>
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