mips.c (save_restore_insns): Don't mark the RA's stack slot as unchanging if…

mips.c (save_restore_insns): Don't mark the RA's stack slot as unchanging if current_function_calls_eh_return.

	* config/mips/mips.c (save_restore_insns): Don't mark the RA's
	stack slot as unchanging if current_function_calls_eh_return.

From-SVN: r44760

gcc/ChangeLog

 2001-08-10  Richard Sandiford  <rsandifo@redhat.com>
 
+	* config/mips/mips.c (save_restore_insns): Don't mark the RA's
+	stack slot as unchanging if current_function_calls_eh_return.
+
+2001-08-10  Richard Sandiford  <rsandifo@redhat.com>
+
 	* config/mips/mips.md (reload_outcc): Use HARD_REGNO_NREGS to
 	access the second half of the TFmode scratch operand.
 

gcc/config/mips/mips.c

@@ -6608,7 +6608,9 @@ save_restore_insns (store_p, large_reg, large_offset, file)
 			     gen_rtx (PLUS, Pmode, base_reg_rtx,
 				      GEN_INT (gp_offset - base_offset)));
 
-		RTX_UNCHANGING_P (mem_rtx) = 1;
+		if (regno != GP_REG_FIRST + 31
+		    || ! current_function_calls_eh_return)
+		  RTX_UNCHANGING_P (mem_rtx) = 1;
 
 		/* The mips16 does not have an instruction to load
                    $31, so we load $7 instead, and work things out