[gcc(refs/users/aoliva/heads/testme)] use -mfpu=auto for arm/simd/vmmla_1.c

[Alexandre Oliva]

https://gcc.gnu.org/g:4adf4f64d0e47b9e4042356a85c39a768325c60b

commit 4adf4f64d0e47b9e4042356a85c39a768325c60b
Author: Alexandre Oliva <oliva@adacore.com>
Date:   Thu Dec 31 21:38:37 2020 -0300

    use -mfpu=auto for arm/simd/vmmla_1.c
    
    On some of our arm targets, we get various -mfpu flags implicitly or
    explicitly passed to the compiler during test runs.  The target
    options pushed in arm_neon.h that affect vmmlaq_s32 set isa_bit_neon,
    but the caller doesn't have that bit set, so arm_can_inline_p rejects
    the attempt to inline it, and the test fails.
    
    An explicit -mfpu=neon would address the compile problem, but cause
    the assembler to reject the generated code.
    
    So this patch adds -mfpu=auto to the test, overriding any implicit
    flags with the fpu implied by the arch.
    
    
    for  gcc/testsuite/ChangeLog
    
            * gcc.target/arm/simd/vmmla_1.c: Pass -mfpu=auto.

Diff:
---
 gcc/testsuite/gcc.target/arm/simd/vmmla_1.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gcc/testsuite/gcc.target/arm/simd/vmmla_1.c b/gcc/testsuite/gcc.target/arm/simd/vmmla_1.c
index aeb4a359e33..d33ebf361d4 100644
--- a/gcc/testsuite/gcc.target/arm/simd/vmmla_1.c
+++ b/gcc/testsuite/gcc.target/arm/simd/vmmla_1.c
@@ -1,6 +1,6 @@
 /* { dg-do assemble } */
 /* { dg-require-effective-target arm_v8_2a_i8mm_ok } */
-/* { dg-options "-save-temps -O2 -march=armv8.2-a+i8mm -mfloat-abi=hard" } */
+/* { dg-options "-save-temps -O2 -march=armv8.2-a+i8mm -mfpu=auto -mfloat-abi=hard" } */
 
 #include "arm_neon.h"