gcc/testsuite/gcc.target/arm/optional_thumb-2.c

   1 /* { dg-do compile } */
   2 /* { dg-skip-if "-marm/-mthumb/-march/-mcpu given" { *-*-*} { "-marm" "-mthumb" "-march=*" "-mcpu=*" } } */
   3 /* { dg-options "-mcpu=cortex-m4" } */
   4
   5 /* Check that -mthumb is not needed when compiling for a Thumb-only target.  */
   6
   7 int foo;