_enable_IRQ in ti_compatibility.h only supports Cortex-M devices

C:\Userdata\mytemp>type file.c
#include <ti_compatibility.h>

void fxn()
{
   _enable_IRQ();
}

C:\Userdata\mytemp>tiarmclang -g -mcpu=cortex-m0 -c file.c

C:\Userdata\mytemp>tiarmobjdump -dS file.o

file.o: file format elf32-littlearm


Disassembly of section .text.fxn:

00000000 <fxn>:
; {
       0: 82 b0         sub     sp, #8
       2: 00 20         movs    r0, #0
;     uint32_t res = 0;
       4: 01 90         str     r0, [sp, #4]
;     __asm volatile ("MRS %0, PRIMASK" :  "=r" (res) : : );
       6: ef f3 10 80   mrs     r0, primask
       a: 01 90         str     r0, [sp, #4]
;     return res;
       c: 01 98         ldr     r0, [sp, #4]
;     uint32_t primask = __get_PRIMASK();
       e: 00 90         str     r0, [sp]
;     __asm volatile ("CPSIE I" : : : );
      10: 62 b6         cpsie i
; }
      12: 02 b0         add     sp, #8
      14: 70 47         bx      lr

C:\Userdata\mytemp>tiarmclang -g -mcpu=cortex-r4 -c file.c

C:\Userdata\mytemp>tiarmobjdump -dS file.o

file.o: file format elf32-littlearm


Disassembly of section .text.fxn:

00000000 <fxn>:
; }
       0: 1e ff 2f e1   bx      lr