[LLVMbugs] [Bug 7573] New: Assertion `Emitted && "Unable to issue a copy instruction!\n"' failed

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=7573

           Summary: Assertion `Emitted && "Unable to issue a copy
                    instruction!\n"' failed
           Product: clang
           Version: trunk
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: -New Bugs
        AssignedTo: unassignedclangbugs at nondot.org
        ReportedBy: jay.foad at gmail.com
                CC: llvmbugs at cs.uiuc.edu


I get:

$ cat jay.c
double f(void) {}
$ clang -O -mno-sse jay.c
...
clang:
/home/jay/svn/llvm-project/llvm/trunk/lib/CodeGen/SelectionDAG/InstrEmitter.cpp:807:
void llvm::InstrEmitter::EmitSpecialNode(llvm::SDNode*, bool, bool,
llvm::DenseMap<llvm::SDValue, unsigned int, llvm::DenseMapInfo<llvm::SDValue>,
llvm::DenseMapInfo<unsigned int> >&): Assertion `Emitted && "Unable to issue a
copy instruction!\n"' failed.


I'm running on Ubuntu 10.4 x86_64. I built clang and llvm from the trunk this
morning.

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