Defined in 3 files as a macro:

• arch/alpha/include/asm/regdef.h, line 15 (as a macro)
• arch/mips/include/asm/regdef.h, line 36 (as a macro)
• arch/mips/include/asm/regdef.h, line 79 (as a macro)

Referenced in 2 files:

• arch/m68k/lib/muldi3.c, line 373
• sound/isa/opti9xx/opti92x-cs4231.c, line 375