This patch fixes a failure in gcc.target/aarch64/reload-valid-spoff.c triggered...

This patch fixes a failure in gcc.target/aarch64/reload-valid-spoff.c 
triggered by https://gcc.gnu.org/ml/gcc-patches/2017-06/msg01367.html.

In ILP32 all memory accesses must have Pmode as the base address, but
aarch64_expand_mov_immediate wasn't emitting a conversion in one case.
Besides fixing this add an assert that flags any MEM operands that are
not Pmode.

    gcc/
	* config/aarch64/aarch64 (aarch64_expand_mov_immediate):
	Convert memory address to Pmode.
	(aarch64_print_operand): Assert MEM operands are always Pmode.

From-SVN: r249741

gcc/ChangeLog

 2017-06-28  Wilco Dijkstra  <wdijkstr@arm.com>
 
+	* config/aarch64/aarch64 (aarch64_expand_mov_immediate):
+	Convert memory address to Pmode.
+	(aarch64_print_operand): Assert MEM operands are always Pmode.
+
+2017-06-28  Wilco Dijkstra  <wdijkstr@arm.com>
+
 	PR target/79665
 	* config/arm/aarch-common.c (arm_no_early_alu_shift_dep):
 	Remove redundant if.

gcc/config/aarch64/aarch64.c

@@ -2002,6 +2002,8 @@ aarch64_expand_mov_immediate (rtx dest, rtx imm)
 	      gcc_assert (can_create_pseudo_p ());
 	      base = gen_reg_rtx (ptr_mode);
 	      aarch64_expand_mov_immediate (base, XEXP (mem, 0));
+	      if (ptr_mode != Pmode)
+		base = convert_memory_address (Pmode, base);
 	      mem = gen_rtx_MEM (ptr_mode, base);
 	    }
 
@@ -5265,6 +5267,8 @@ aarch64_print_operand (FILE *f, rtx x, int code)
 
 	case MEM:
 	  output_address (GET_MODE (x), XEXP (x, 0));
+	  /* Check all memory references are Pmode - even with ILP32.  */
+	  gcc_assert (GET_MODE (XEXP (x, 0)) == Pmode);
 	  break;
 
 	case CONST: