testsuite: arm: Use check-function-bodies in fp16-aapcs-* tests

Converted the tests to use check-function-bodies in order to ensure that
the sequence is correct.

gcc/testsuite/ChangeLog:

	* gcc.target/arm/fp16-aapcs-1.c: Use check-function-bodies.
	* gcc.target/arm/fp16-aapcs-2.c: Likewise.
	* gcc.target/arm/fp16-aapcs-3.c: Likewise.
	* gcc.target/arm/fp16-aapcs-4.c: Likewise.

Signed-off-by: Torbjörn SVENSSON <torbjorn.svensson@foss.st.com>

gcc/testsuite/gcc.target/arm/fp16-aapcs-1.c

@@ -3,20 +3,63 @@
 /* { dg-require-effective-target arm_fp16_ok } */
 /* { dg-options "-O2" }  */
 /* { dg-add-options arm_fp16_ieee } */
+/* { dg-final { check-function-bodies "**" "" "" } } */
 
 /* Test __fp16 arguments and return value in registers (hard-float).  */
 
 void
 swap (__fp16, __fp16);
 
+/*
+** F:
+** ...
+** (
+
+Below block is for non-armv8.1
+** (
+**	vmov\.f32	(s[3-9]|s1[0-5]), s0
+** ...
+**	vmov\.f32	s0, s1
+** ...
+**	vmov\.f32	s1, \1
+** |
+**	vmov\.f32	(s[3-9]|s1[0-5]), s1
+** ...
+**	vmov\.f32	s1, s0
+** ...
+**	vmov\.f32	s0, \2
+** )
+**	vstr\.32	s2, \[sp, #4\]	@ int
+**	bl	swap
+**	vldr\.32	s2, \[sp, #4\]	@ int
+**	vmov\.f32	s0, s2
+
+** |
+
+Below block is for armv8.1
+** (
+**	vmov	(s[3-9]|s1[0-5]), s0	@ __fp16
+** ...
+**	vmov	s0, s1	@ __fp16
+** ...
+**	vmov	s1, \3	@ __fp16
+** |
+**	vmov	(s[3-9]|s1[0-5]), s1	@ __fp16
+** ...
+**	vmov	s1, s0	@ __fp16
+** ...
+**	vmov	s0, \4	@ __fp16
+** )
+**	vstr\.32	s2, \[sp, #4\]	@ int
+**	bl	swap
+**	vldr\.16	s0, \[sp, #4\]
+
+** )
+** ...
+*/
 __fp16
 F (__fp16 a, __fp16 b, __fp16 c)
 {
   swap (b, a);
   return c;
 }
-
-/* { dg-final { scan-assembler {vmov\.f32\ts[0-9]+, s1} } }  */
-/* { dg-final { scan-assembler {vmov\.f32\ts1, s0} } }  */
-/* { dg-final { scan-assembler {vmov\.f32\ts[0-9]+, s2+} } }  */
-/* { dg-final { scan-assembler-times {vmov\.f32\ts0, s[0-9]+} 2 } }  */

gcc/testsuite/gcc.target/arm/fp16-aapcs-2.c

@@ -3,21 +3,42 @@
 /* { dg-options "-mfloat-abi=softfp -O2 -mno-long-calls" }  */
 /* { dg-add-options arm_fp16_ieee } */
 /* { dg-skip-if "incompatible float-abi" { arm*-*-* } { "-mfloat-abi=hard" } } */
+/* { dg-final { check-function-bodies "**" "" "" } } */
 
 /* Test __fp16 arguments and return value in registers (softfp).  */
 
 void
 swap (__fp16, __fp16);
 
+/*
+** F:
+** ...
+** (
+**	mov	r3, r0	@ __fp16
+** ...
+**	mov	r0, r1	@ __fp16
+** ...
+**	mov	r1, r3	@ __fp16
+** |
+**	mov	r3, r1	@ __fp16
+** ...
+**	mov	r1, r0	@ __fp16
+** ...
+**	mov	r0, r3	@ __fp16
+** )
+** ...
+*/
+/*
+** F: { target arm_little_endian }
+** ...
+**	str	r2, \[sp, #4\]
+**	bl	swap
+**	ldrh	r0, \[sp, #4\]	@ __fp16
+** ...
+*/
 __fp16
 F (__fp16 a, __fp16 b, __fp16 c)
 {
   swap (b, a);
   return c;
 }
-
-/* The swap must include two moves out of r0/r1 and two moves in.  */
-/* { dg-final { scan-assembler-times {mov\tr[0-9]+, r[01]} 2 } }  */
-/* { dg-final { scan-assembler-times {mov\tr[01], r[0-9]+} 2 } }  */
-/* c should be spilled around the call.  */
-/* { dg-final { scan-assembler {str\tr2, ([^\n]*).*ldrh\tr0, \1} { target arm_little_endian } } } */

gcc/testsuite/gcc.target/arm/fp16-aapcs-3.c

@@ -3,21 +3,63 @@
 /* { dg-require-effective-target arm_fp16_alternative_ok } */
 /* { dg-options "-O2" }  */
 /* { dg-add-options arm_fp16_alternative } */
+/* { dg-final { check-function-bodies "**" "" "" } } */
 
 /* Test __fp16 arguments and return value in registers (hard-float).  */
 
 void
 swap (__fp16, __fp16);
 
+/*
+** F:
+** ...
+** (
+
+Below block is for non-armv8.1
+** (
+**	vmov\.f32	(s[3-9]|s1[0-5]), s0
+** ...
+**	vmov\.f32	s0, s1
+** ...
+**	vmov\.f32	s1, \1
+** |
+**	vmov\.f32	(s[3-9]|s1[0-5]), s1
+** ...
+**	vmov\.f32	s1, s0
+** ...
+**	vmov\.f32	s0, \2
+** )
+**	vstr\.32	s2, \[sp, #4\]	@ int
+**	bl	swap
+**	vldr\.32	s2, \[sp, #4\]	@ int
+**	vmov\.f32	s0, s2
+
+** |
+
+Below block is for armv8.1
+** (
+**	vmov	(s[3-9]|s1[0-5]), s0
+** ...
+**	vmov	s0, s1
+** ...
+**	vmov	s1, \3
+** |
+**	vmov	(s[3-9]|s1[0-5]), s1
+** ...
+**	vmov	s1, s0
+** ...
+**	vmov	s0, \4
+** )
+**	vstr\.32	s2, \[sp, #4\]	@ int
+**	bl	swap
+**	vldr\.16	s0, \[sp, #4\]
+
+** )
+** ...
+*/
 __fp16
 F (__fp16 a, __fp16 b, __fp16 c)
 {
   swap (b, a);
   return c;
 }
-
-/* { dg-final { scan-assembler {vmov\.f32\ts[0-9]+, s1} } }  */
-/* { dg-final { scan-assembler {vmov\.f32\ts1, s0} } }  */
-/* { dg-final { scan-assembler {vmov\.f32\ts[0-9]+, s2+} } }  */
-/* { dg-final { scan-assembler-times {vmov\.f32\ts0, s[0-9]+} 2 } }  */
-

gcc/testsuite/gcc.target/arm/fp16-aapcs-4.c

@@ -3,21 +3,42 @@
 /* { dg-options "-mfloat-abi=softfp -O2" }  */
 /* { dg-add-options arm_fp16_alternative } */
 /* { dg-skip-if "incompatible float-abi" { arm*-*-* } { "-mfloat-abi=hard" } } */
+/* { dg-final { check-function-bodies "**" "" "" } } */
 
 /* Test __fp16 arguments and return value in registers (softfp).  */
 
 void
 swap (__fp16, __fp16);
 
+/*
+** F:
+** ...
+** (
+**	mov	r3, r0	@ __fp16
+** ...
+**	mov	r0, r1	@ __fp16
+** ...
+**	mov	r1, r3	@ __fp16
+** |
+**	mov	r3, r1	@ __fp16
+** ...
+**	mov	r1, r0	@ __fp16
+** ...
+**	mov	r0, r3	@ __fp16
+** )
+** ...
+*/
+/*
+** F: { target arm_little_endian }
+** ...
+**	str	r2, \[sp, #4\]
+**	bl	swap
+**	ldrh	r0, \[sp, #4\]	@ __fp16
+** ...
+*/
 __fp16
 F (__fp16 a, __fp16 b, __fp16 c)
 {
   swap (b, a);
   return c;
 }
-
-/* The swap must include two moves out of r0/r1 and two moves in.  */
-/* { dg-final { scan-assembler-times {mov\tr[0-9]+, r[01]} 2 } }  */
-/* { dg-final { scan-assembler-times {mov\tr[01], r[0-9]+} 2 } }  */
-/* c should be spilled around the call.  */
-/* { dg-final { scan-assembler {str\tr2, ([^\n]*).*ldrh\tr0, \1} { target arm_little_endian } } } */