compile gcc.target/arm/{pr78255-2.c,memset-inline-2.c} with -mno-long-calls

If the target is configured such that -mlong-call is passed
by default, the function calls these tests are trying to detect
by scanning the assembly file are performed using long calls,
like so:

    | foo:
    |     @ memset-inline-2.c:12:   memset (a, -1, 14);
    |         mov     r2, gcc-mirror#14 @,
    |         mvn     r1, #0  @,
    |         ldr     r0, .L2 @,
    |         ldr     r3, .L2+4       @ tmp112,
    |         bx      r3              @ tmp112

Looking at .L2 (and in particular at .L2+4):

    | .L2:
    |         .word   a
    |         .word   memset   <<<---

This change adds -mno-long-calls to the list of compiler options
to make sure we generate short call code, allowing the assembly
matching to pass.

This is added unconditionally to the dg-options (as opposed to using
dg-additional-options) because this test is already specific to ARM
targets, and -mno-long-calls is available on all ARM targets.


for  gcc/testsuite/ChangeLog

	* gcc.target/arm/memset-inline-2.c: Add -mno-long-calls to
	the test's dg-options.
	* gcc.target/arm/pr78255-2.c: Likewise.

Author: brobecke

gcc/testsuite/gcc.target/arm/memset-inline-2.c

@@ -1,5 +1,5 @@
 /* { dg-do run } */
-/* { dg-options "-save-temps -Os -fno-inline" } */
+/* { dg-options "-save-temps -Os -fno-inline -mno-long-calls" } */
 
 #include <string.h>
 #include <stdlib.h>

gcc/testsuite/gcc.target/arm/pr78255-2.c

@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-O2" }  */
+/* { dg-options "-O2 -mno-long-calls" }  */
 
 extern int bar (void *);