Extended Description

Immediately after Chris' change to inline asm to fix bug 1314, this one
started failing:

FAIL: /proj/llvm/llvm-4/test/CodeGen/Alpha/2006-07-03-ASMFormalLowering.ll:
child process exited abnormally
NODE: 0x8e7f418: i32 = TargetConstant <10>
llc: LegalizeDAG.cpp:3178:
llvm::SDOperand::SelectionDAGLegalize::PromoteOp(llvm::SDOperand):
Assertion `0 && "Do not know how to promote this operator!"' failed.
.arch ev6
.set noat
llc((anonymous namespace)::PrintStackTrace()+0x1a)[0x88d235e]
llc((anonymous namespace)::SignalHandler(int)+0x110)[0x88d2686]
[0x7ac420]
/lib/libc.so.6(abort+0x101)[0x3234f1]
/lib/libc.so.6(__assert_fail+0xfd)[0x31b859]
llc[0x86a9792]
llc[0x86b6f95]
llc[0x86b757f]
llc(llvm::SelectionDAG::Legalize()+0x41)[0x86b76d1]
llc(llvm::SelectionDAGISel::CodeGenAndEmitDAG(llvm::SelectionDAG&)+0x91)[0x8650b41]
llc(llvm::SelectionDAGISel::SelectBasicBlock(llvm::BasicBlock*,
llvm::MachineFunction&, llvm::FunctionLoweringInfo&)+0xad)[0x8664e51]
llc(llvm::SelectionDAGISel::runOnFunction(llvm::Function&)+0x11f)[0x8665adf]
llc(llvm::FPPassManager::runOnFunction(llvm::Function&)+0x13a)[0x885fe7a]
llc(llvm::FunctionPassManagerImpl::run(llvm::Function&)+0x6e)[0x88600fe]
llc(llvm::FunctionPassManager::run(llvm::Function&)+0x88)[0x88601c0]
llc(main+0xbd6)[0x83b504e]
/lib/libc.so.6(__libc_start_main+0xdc)[0x30f4e4]
llc(__gxx_personality_v0+0x171)[0x83b3b41]
Output/2006-07-03-ASMFormalLowering.ll.out.script: line 1: 28544 Done
llvm-upgrade
</proj/llvm/llvm-4/test/CodeGen/Alpha/2006-07-03-ASMFormalLowering.ll
28545 | llvm-as
28546 Aborted | llc -march=alpha