--report-if-not-wysiwyg assembler option
Instructs the assembler to report when it outputs an encoding that was not directly requested in the source code.
This can happen when the assembler:
Uses a pseudo-instruction that is not available in other assemblers, for example MOV32.
Outputs an encoding that does not directly match the instruction mnemonic, for example if the assembler outputs the MVN encoding when assembling the MOV instruction.
Inserts additional instructions where necessary for instruction syntax semantics, for example the assembler can insert a missing IT instruction before a conditional Thumb instruction.