[PATCH] RISC-V: Fix testcase failed when default -mcmodel=medany

[Lehua Ding]

Hi,

This patch fix testcase failed when I build RISC-V GCC with -mcmodel=medany
as default. If set to medany, stack_save_restore.c testcase will fail because of
the reduced use of s3 registers in assembly (thus calling __riscv_save/store_3
instead of __riscv_save/store_4). Explicitly add -mcmodel=medlow to solve this
problem.

Best,
Lehua

gcc/testsuite/ChangeLog:

        * gcc.target/riscv/stack_save_restore.c: Add -mcmodel=medlow

---
 gcc/testsuite/gcc.target/riscv/stack_save_restore.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gcc/testsuite/gcc.target/riscv/stack_save_restore.c 
b/gcc/testsuite/gcc.target/riscv/stack_save_restore.c
index 522e706cfbf..a2430783474 100644
--- a/gcc/testsuite/gcc.target/riscv/stack_save_restore.c
+++ b/gcc/testsuite/gcc.target/riscv/stack_save_restore.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-march=rv32imafc -mabi=ilp32f -msave-restore -O2 
-fno-schedule-insns -fno-schedule-insns2 -fno-unroll-loops -fno-peel-loops 
-fno-lto" } */
+/* { dg-options "-march=rv32imafc -mabi=ilp32f -msave-restore -O2 
-fno-schedule-insns -fno-schedule-insns2 -fno-unroll-loops -fno-peel-loops 
-fno-lto -mcmodel=medlow" } */
 /* { dg-final { check-function-bodies "**" "" } } */
 
 char my_getchar();
-- 
2.36.1