Re: [PATCH] RISCV: Add -m(no)-omit-leaf-frame-pointer support.

[Jeff Law <jeffreyalaw@gmail.com>]

On 6/2/23 01:07, yanzhang.wang--- via Gcc-patches wrote:
> From: Yanzhang Wang <yanzhang.wang@intel.com>
> 
> gcc/ChangeLog:
> 
> 	* config/riscv/riscv.cc (riscv_save_reg_p): Save ra for leaf
> 	  when enabling -mno-omit-leaf-frame-pointer
> 	(riscv_option_override): Override omit-frame-pointer.
> 	(riscv_frame_pointer_required): Save s0 for non-leaf function
> 	(TARGET_FRAME_POINTER_REQUIRED): Override defination
> 	* config/riscv/riscv.opt: Add option support.
> 
> gcc/testsuite/ChangeLog:
> 
> 	* gcc.target/riscv/omit-frame-pointer-1.c: New test.
> 	* gcc.target/riscv/omit-frame-pointer-2.c: New test.
> 	* gcc.target/riscv/omit-frame-pointer-3.c: New test.
> 	* gcc.target/riscv/omit-frame-pointer-4.c: New test.
> 	* gcc.target/riscv/omit-frame-pointer-test.c: New test.
Not ACKing or NAKing at this time.

Why do you want this feature?

jeff