[Bug gas/13937] Incorrect opcode generated for FDIVRP

[zbyszek at mimuw dot edu.pl]

http://sourceware.org/bugzilla/show_bug.cgi?id=13937

--- Comment #2 from Zbigniew Jurkiewicz <zbyszek at mimuw dot edu.pl> 
2012-04-03 06:23:58 UTC ---
(In reply to comment #1)
> See http://sourceware.org/binutils/docs-2.22/as/i386_002dMnemonics.html .

The documentation says:

Several x87 instructions, `fadd', `fdiv', `fdivp', `fdivr', `fdivrp', `fmul',
`fsub', `fsubp', `fsubr' and `fsubrp', are implemented in AT&T System V/386
assembler with different mnemonics from those in Intel IA32 specification.

In the case of fdivrp it is not true.  The mnemonic IS ACCEPTED, but the 
generated opcodes for fdivrp and fdivp (when called without arguments)
are swapped.  No other assembler does this.

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