[GCC][AArch64][PATCH][Testsuite] Fix failing test vector_initialization_nostack.c

[Tamar Christina]

Hi all,

This fixes (PR78142) by turning off scheduling for the test.
r241590 is causing more registers to be used and so
the SP registered happens to be picked and used.

This test I believe was checking explicitly that the
SP is not used if not needed.  

Ran regression tests on aarch64-none-linux-gnu.

Ok for trunk?

Thanks,
Tamar

gcc/testsuite/

2016-11-07  Tamar Christina  <tamar.christ...@arm.com>

        PR middle-end/78142
        * gcc.target/aarch64/vector_initialization_nostack.c
        (dg-options): Disabled scheduling.
diff --git a/gcc/testsuite/gcc.target/aarch64/vector_initialization_nostack.c b/gcc/testsuite/gcc.target/aarch64/vector_initialization_nostack.c
index bbad04d00263b6a91b826b4911af92bdd226c821..71699281c5ce79fb5cf37e47b8ba078721c19f3a 100644
--- a/gcc/testsuite/gcc.target/aarch64/vector_initialization_nostack.c
+++ b/gcc/testsuite/gcc.target/aarch64/vector_initialization_nostack.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-O3 -ftree-vectorize -fno-vect-cost-model" } */
+/* { dg-options "-O3 -ftree-vectorize -fno-vect-cost-model -fno-schedule-insns" } */
 float arr_f[100][100];
 float
 f9 (void)