[gcc/devel/ranger] add missing fp16 options

[Aldy Hernandez]

https://gcc.gnu.org/g:7dbfcb91a87f78446c5e10582d4ea9ea168f3f98

commit 7dbfcb91a87f78446c5e10582d4ea9ea168f3f98
Author: Alexandre Oliva <oliva@adacore.com>
Date:   Wed Apr 8 14:24:29 2020 -0300

    add missing fp16 options
    
    dg-require-effective-target arm_fp16_alternative_ok may pass even when
    arm_fp16_ok doesn't, and the latter's failure inhibits dg-add-options
    arm_fp16_alternative.  Requiring arm_fp16_ok would disable the test,
    but if we just pass it the -mfp16-format=alternative option, it passes
    even without arm_fp16_ok.  Sibling test fp16-aapcs-4.c underwent a
    similar change, so I'm proposing the explicit option to fp16-aapcs-3.c
    as well.
    
    
    for  gcc/testsuite/ChangeLog
    
            * gcc.target/arm/fp16-aapcs-3.c: Explicitly use the
            -mfp16-format=alternative option.

Diff:
---
 gcc/testsuite/ChangeLog                     | 5 +++++
 gcc/testsuite/gcc.target/arm/fp16-aapcs-3.c | 3 +--
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index e8305cb1c33..db4f6392493 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2020-04-08  Alexandre Oliva <oliva@adacore.com>
+
+	* gcc.target/arm/fp16-aapcs-3.c: Explicitly use the
+	-mfp16-format=alternative option.
+
 2020-04-08  H.J. Lu  <hongjiu.lu@intel.com>
 
 	PR target/94417
diff --git a/gcc/testsuite/gcc.target/arm/fp16-aapcs-3.c b/gcc/testsuite/gcc.target/arm/fp16-aapcs-3.c
index 56a3ae26184..858181cdd85 100644
--- a/gcc/testsuite/gcc.target/arm/fp16-aapcs-3.c
+++ b/gcc/testsuite/gcc.target/arm/fp16-aapcs-3.c
@@ -1,8 +1,7 @@
 /* { dg-do compile }  */
 /* { dg-require-effective-target arm_hard_vfp_ok }  */
 /* { dg-require-effective-target arm_fp16_alternative_ok } */
-/* { dg-options "-O2" }  */
-/* { dg-add-options arm_fp16_alternative } */
+/* { dg-options "-O2 -mfp16-format=alternative" }  */
 
 /* Test __fp16 arguments and return value in registers (hard-float).  */