REG1_SOURCE       517 ext/pcre/pcrelib/sljit/sljitNativeMIPS_common.c #define REG1_SOURCE	0x04000
REG1_SOURCE       547 ext/pcre/pcrelib/sljit/sljitNativePPC_common.c #define REG1_SOURCE	0x000002
REG1_SOURCE       104 ext/pcre/pcrelib/sljit/sljitNativeTILEGX_64.c #define REG1_SOURCE 0x04000