regcprop.c (copyprop_hardreg_forward_1): Account for HARD_REGNO_CALL_PART_CLOBBERED.

2014-06-04  Matthew Fortune  <matthew.fortune@imgtec.com>

gcc/
	* regcprop.c (copyprop_hardreg_forward_1): Account for 
	HARD_REGNO_CALL_PART_CLOBBERED.

From-SVN: r211230

gcc/ChangeLog

+2014-06-04  Matthew Fortune  <matthew.fortune@imgtec.com>
+
+	* regcprop.c (copyprop_hardreg_forward_1): Account for 
+	HARD_REGNO_CALL_PART_CLOBBERED.
+
 2014-06-04  Richard Biener  <rguenther@suse.de>
 
 	* configure.ac: Check whether the underlying type of int64_t

gcc/regcprop.c

@@ -1012,7 +1012,6 @@ copyprop_hardreg_forward_1 (basic_block bb, struct value_data *vd)
 	  unsigned int set_nregs = 0;
 	  unsigned int regno;
 	  rtx exp;
-	  hard_reg_set_iterator hrsi;
 
 	  for (exp = CALL_INSN_FUNCTION_USAGE (insn); exp; exp = XEXP (exp, 1))
 	    {
@@ -1031,8 +1030,10 @@ copyprop_hardreg_forward_1 (basic_block bb, struct value_data *vd)
 		}
 	    }
 
-	  EXECUTE_IF_SET_IN_HARD_REG_SET (regs_invalidated_by_call, 0, regno, hrsi)
-	    if (regno < set_regno || regno >= set_regno + set_nregs)
+	  for (regno = 0; regno < FIRST_PSEUDO_REGISTER; regno++)
+	    if ((TEST_HARD_REG_BIT (regs_invalidated_by_call, regno)
+		 || HARD_REGNO_CALL_PART_CLOBBERED (regno, vd->e[regno].mode))
+		&& (regno < set_regno || regno >= set_regno + set_nregs))
 	      kill_value_regno (regno, 1, vd);
 
 	  /* If SET was seen in CALL_INSN_FUNCTION_USAGE, and SET_SRC