[LLVMbugs] [Bug 3795] New: ARM assertion failure for simple first class aggregate

[bugzilla-daemon at cs.uiuc.edu]

http://llvm.org/bugs/show_bug.cgi?id=3795

           Summary: ARM assertion failure for simple first class aggregate
           Product: new-bugs
           Version: unspecified
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Keywords: compile-fail
          Severity: normal
          Priority: P2
         Component: new bugs
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: tomas.l.olsen at gmail.com
                CC: llvmbugs at cs.uiuc.edu


Created an attachment (id=2708)
 --> (http://llvm.org/bugs/attachment.cgi?id=2708)
test case for arm codegen failure

The attached test case fails to compile for ARM with llc:

$ llvm-as foo.ll
$ llc -march=arm foo.bc

llc: ValueTypes.cpp:167: static llvm::MVT llvm::MVT::getMVT(const llvm::Type*,
bool): Assertion `0 && "Unknown type!"' failed.
0   llc       0x0887357d
1             0xb8066400 __kernel_sigreturn + 0
2   libc.so.6 0xb7dcf0c8 abort + 392
3   libc.so.6 0xb7dc66ee __assert_fail + 238
4   llc       0x08829e31 llvm::MVT::getMVT(llvm::Type const*, bool) + 801
5   llc       0x082a9273
llvm::ARMTargetLowering::isLegalAddressingMode(llvm::TargetLowering::AddrMode
const&, llvm::Type const*) const + 275
6   llc       0x08725cc9
7   llc       0x0872637d
8   llc       0x08725a12
9   llc       0x087267e8
10  llc       0x08728223
11  llc       0x087292f5
12  llc       0x08814671 llvm::FPPassManager::runOnFunction(llvm::Function&) +
417
13  llc       0x08814a47 llvm::FunctionPassManagerImpl::run(llvm::Function&) +
119
14  llc       0x08814bf5 llvm::FunctionPassManager::run(llvm::Function&) + 69
15  llc       0x08131e4b main + 4187
16  libc.so.6 0xb7db96c5 __libc_start_main + 229
17  llc       0x08130301
Aborted


The problematic code seems to be the variable GEP on line 15.


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