[Bug gas/23877] New: Internal error: bad value (n32r5900) for default CPU in mips_after_parse_args at gas/config/tc-mips.c:14987

[noring at nocrew dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=23877

            Bug ID: 23877
           Summary: Internal error: bad value (n32r5900) for default CPU
                    in mips_after_parse_args at gas/config/tc-mips.c:14987
           Product: binutils
           Version: 2.31
            Status: UNCONFIRMED
          Severity: minor
          Priority: P2
         Component: gas
          Assignee: unassigned at sourceware dot org
          Reporter: noring at nocrew dot org
  Target Milestone: ---

I tried to obtain a toolchain where the `-mabi=n32' option was default, and by
looking at the MIPS naming convention for QEMU it seemed reasonable to try
`mipsn32r5900el' or `mipsr5900n32el'.  The resulting assembler obviously did
not behave as expected:

% mipsn32r5900el-unknown-linux-gnu-as test.s
Assembler messages:
Error: bad value (n32r5900) for default CPU
Internal error in mips_after_parse_args at ../../gas/config/tc-mips.c:14987.
Please report this bug.

% mipsr5900n32el-unknown-linux-gnu-as test.s
Assembler messages:
Error: bad value (r5900n32) for default CPU
Internal error in mips_after_parse_args at ../../gas/config/tc-mips.c:14987.
Please report this bug.

I have since learned that `mips64r5900el-unknown-linux-gnu' is a better
variant, so this report is mainly to note the triggering of an internal error.

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