[Bug target/88952] The asm operator modifiers for rs6000 should be documented like they are for x86

[sch...@linux-m68k.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88952

--- Comment #8 from Andreas Schwab <sch...@linux-m68k.org> ---
reg:reg+1 maps to lo:hi on x86.