r266241 - in /trunk/gcc: ChangeLog config/riscv...

[wilson@gcc.gnu.org]

Author: wilson
Date: Sat Nov 17 23:31:01 2018
New Revision: 266241

URL: https://gcc.gnu.org/viewcvs?rev=266241&root=gcc&view=rev
Log:
RISC-V: Fix epilogue unwind info with fp and single sp adjust.

	gcc/
	* config/riscv/riscv.c (epilogue_cfa_sp_offset): New.
	(riscv_restore_reg): If restoring HARD_FRAME_POINTER_REGNUM, and
	epilogue_cfa_sp_offset set, then add REG_CFA_DEF_CFA regnote.
	(riscv_expand_epilogue): Initialize epilogue_cfa_sp_offset.  Set it
	to step2 if frame_pointer_needed and step1 is 0.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/riscv/riscv.c