Fix restoration of hi/lo in MIPS64R2 interrupt handlers.

gcc/
	* config/mips/mips.c (mips_emit_save_slot_move): Fix typo.

gcc/testsuite/
	* gcc.target/mips/interrupt_handler-5.c: New test.

From-SVN: r225820

gcc/ChangeLog

+2015-07-15  Robert Suchanek  <robert.suchanek@imgtec.com>
+
+	* config/mips/mips.c (mips_emit_save_slot_move): Fix typo.
+
 2015-07-15  Matthew Fortune  <matthew.fortune@imgtec.com>
 	    Robert Suchanek  <robert.suchanek@imgtec.com>
 

gcc/config/mips/mips.c

@@ -11131,7 +11131,7 @@ mips_emit_save_slot_move (rtx dest, rtx src, rtx temp)
 	{
 	  mips_emit_move (temp, src);
 	  if (TARGET_64BIT)
-	    emit_insn (gen_mthisi_di (gen_rtx_REG (TImode, MD_REG_FIRST),
+	    emit_insn (gen_mthidi_ti (gen_rtx_REG (TImode, MD_REG_FIRST),
 				      temp, gen_rtx_REG (DImode, LO_REGNUM)));
 	  else
 	    emit_insn (gen_mthisi_di (gen_rtx_REG (DImode, MD_REG_FIRST),

gcc/testsuite/ChangeLog

+2015-07-15  Robert Suchanek  <robert.suchanek@imgtec.com>
+
+	* gcc.target/mips/interrupt_handler-5.c: New test.
+
 2015-07-15  Matthew Fortune  <matthew.fortune@imgtec.com>
 	    Robert Suchanek  <robert.suchanek@imgtec.com>
 

gcc/testsuite/gcc.target/mips/interrupt_handler-5.c

+/* Test the interrupt handler with an accumulator.  */
+/* { dg-do assemble } */
+/* { dg-options "-mips64r2" } */
+_Accum a;
+__attribute__((interrupt))
+void foo () {
+  a = a*a;
+}