re PR target/39767 (libgcc2.c:562: internal compiler error: RTL check: expected…

re PR target/39767 (libgcc2.c:562: internal compiler error: RTL check: expected code 'reg', have 'ashiftrt' in rhs_regno, at rtl.h:1005)

	PR target/39767
	* config/sh/predicates.md (arith_operand): Check if the operand
	of TRUNCATE is a REG.

From-SVN: r146216

gcc/ChangeLog

+2009-04-16  Kaz Kojima  <kkojima@gcc.gnu.org>
+
+	PR target/39767
+	* config/sh/predicates.md (arith_operand): Check if the operand
+	of TRUNCATE is a REG.
+
 2009-04-16  Kazu Hirata  <kazu@codesourcery.com>
 
 	* cfgrtl.c (delete_insn_chain_and_edges): Remove.

gcc/config/sh/predicates.md

@@ -112,6 +112,7 @@
 	  || satisfies_constraint_Css (op))
 	return 1;
       else if (GET_CODE (op) == TRUNCATE
+	       && GET_CODE (XEXP (op, 0)) == REG
 	       && ! system_reg_operand (XEXP (op, 0), VOIDmode)
 	       && (mode == VOIDmode || mode == GET_MODE (op))
 	       && (GET_MODE_SIZE (GET_MODE (op))