Not familiar with this stuff. 
I leave it other RISC-V folks to review.



juzhe.zhong@rivai.ai
 
From: Lehua Ding
Date: 2023-07-18 15:42
To: gcc-patches
CC: juzhe.zhong; rdapp.gcc; kito.cheng; palmer; jeffreyalaw
Subject: [PATCH] RISC-V: Fix testcase failed when default -mcmodel=medany
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