From: Kong Lingling
Extend GENERAL_REGS with extra r16-r31 registers like REX registers,
named as REX2 registers. They will only be enabled under
TARGET_APX_EGPR.
gcc/ChangeLog:
* config/i386/i386-protos.h (x86_extended_rex2reg_mentioned_p):
New function prototype.
* con
From: Kong Lingling
Extend GENERAL_REGS with extra r16-r31 registers like REX registers,
named as REX2 registers. They will only be enabled under
TARGET_APX_EGPR.
gcc/ChangeLog:
* config/i386/i386-protos.h (x86_extended_rex2reg_mentioned_p):
New function prototype.
* con