/* Support function to determine the return address of the function 'count' frames back up the stack. */ rtx lm32_return_addr_rtx (int count, rtx frame) { rtx r; if (count == 0) { if (!df_regs_ever_live_p (RA_REGNUM)) r = gen_rtx_REG (Pmode, RA_REGNUM); else { r = gen_rtx_MEM (Pmode, gen_rtx_PLUS (Pmode, frame, GEN_INT (-2 * UNITS_PER_WORD))); set_mem_alias_set (r, get_frame_alias_set ()); } } else if (flag_omit_frame_pointer) r = NULL_RTX; else { r = gen_rtx_MEM (Pmode, gen_rtx_PLUS (Pmode, frame, GEN_INT (-2 * UNITS_PER_WORD))); set_mem_alias_set (r, get_frame_alias_set ()); } return r; }
/* Support function to determine the return address of the function 'count' frames back up the stack. */ rtx lm32_return_addr_rtx (int count, rtx frame) { rtx r; if (count == 0) { /* *mjs* This test originally used leaf_function_p (), we now use the regs_ever_live test which I *think* is more accurate. */ if (!df_regs_ever_live_p(RA_REGNUM)) { r = gen_rtx_REG (Pmode, RA_REGNUM); } else { r = gen_rtx_MEM (Pmode, gen_rtx_PLUS (Pmode, frame, GEN_INT(- 2 * UNITS_PER_WORD))); set_mem_alias_set (r, get_frame_alias_set ()); } } else if (flag_omit_frame_pointer) r = NULL_RTX; else { r = gen_rtx_MEM (Pmode, gen_rtx_PLUS (Pmode, frame, GEN_INT(- 2 * UNITS_PER_WORD))); set_mem_alias_set (r, get_frame_alias_set ()); } return r; }