MASMがInternal errorでクラッシュする by GreenCat

Thank you for contacting Microsoft and for using the Microsoft Macro Assembler.

And thank you for reporting this issue. This appears to be an issue that has existed for a while as nothing has recently changed in this area.

Also, the internal error is sensitive to the order of statements. For instance, interchanging the two EXTERNDEF statements in your repro avoids the error.

We will pursue fixing this in a future release of MASM. In the mean time, can you look to rearranging statements -- i.e. put the ALIAS immediately after its reference -- to avoid the internal error so you are able to proceed with your work.

Thank you
Visual Studio (and MASM) Product Team

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Problem Description:
When a source using EXTERNDEF and ALIAS is assembled, a fatal error A1016: Internal error occurs. The same error occurs on MASM 10 supplied to VC++ 2010 SP1.

Repro Steps:
Assemble the following .asm file by ml /c.
.model flat
EXTERNDEF data1 :DWORD
EXTERNDEF data2 :DWORD
ALIAS <data3> = <data1>
END

Actual Results:
MASM : Fatal error A1016: An internal error is displayed and an object file of 0 byte is created.

Expected Results:
An assembled object file must be output.
MASM : Fatal error A1016: An internal error is displayed and an object file of 0 byte is created.
An assembled object file must be output.

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