v850-modes.def (CCZ, CCNZ): Add new modes.

	* config/v850/v850-modes.def (CCZ, CCNZ): Add new modes.
	* config/v850/v850.c (notice_update_cc): Remove.
	* config/v850/v850.h  (CC_OVERFLOW_UNUSABLE): Remove
	(CC_NO_CARRY): Likewise.
	(NOTICE_UPDATE_CC): Define to nothing.
	* config/v850/v850.md: Remove block comment on cc0 handling
	Remove "cc" attribute from all patterns.  Remove cc_status handling
	from all patterns.  Minor formatting fixes.

Co-Authored-By: Austin Law <austinklaw@gmail.com>

From-SVN: r262189

gcc/ChangeLog

+2018-06-27  Jeff Law  <law@redhat.com>
+	    Austin Law  <austinklaw@gmail.com>
+
+	* config/v850/v850-modes.def (CCZ, CCNZ): Add new modes.
+	* config/v850/v850.c (notice_update_cc): Remove.
+	* config/v850/v850.h  (CC_OVERFLOW_UNUSABLE): Remove
+	(CC_NO_CARRY): Likewise.
+	(NOTICE_UPDATE_CC): Define to nothing.
+	* config/v850/v850.md: Remove block comment on cc0 handling
+	Remove "cc" attribute from all patterns.  Remove cc_status handling
+	from all patterns.  Minor formatting fixes.
+
 2018-06-27  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 
 	* config/aarch64/aarch64-cores.def (cortex-a76): New entry.

gcc/config/v850/v850-modes.def

@@ -18,6 +18,8 @@
    along with GCC; see the file COPYING3.  If not see
    <http://www.gnu.org/licenses/>.  */
 
+CC_MODE (CCZ);
+CC_MODE (CCNZ);
 CC_MODE (CC_FPU_LT);
 CC_MODE (CC_FPU_LE);
 CC_MODE (CC_FPU_GT);

gcc/config/v850/v850.c

@@ -1985,55 +1985,6 @@ expand_epilogue (void)
   v850_interrupt_p = FALSE;
 }
 
-/* Update the condition code from the insn.  */
-void
-notice_update_cc (rtx body, rtx_insn *insn)
-{
-  switch (get_attr_cc (insn))
-    {
-    case CC_NONE:
-      /* Insn does not affect CC at all.  */
-      break;
-
-    case CC_NONE_0HIT:
-      /* Insn does not change CC, but the 0'th operand has been changed.  */
-      if (cc_status.value1 != 0
-	  && reg_overlap_mentioned_p (recog_data.operand[0], cc_status.value1))
-	cc_status.value1 = 0;
-      break;
-
-    case CC_SET_ZN:
-      /* Insn sets the Z,N flags of CC to recog_data.operand[0].
-	 V,C is in an unusable state.  */
-      CC_STATUS_INIT;
-      cc_status.flags |= CC_OVERFLOW_UNUSABLE | CC_NO_CARRY;
-      cc_status.value1 = recog_data.operand[0];
-      break;
-
-    case CC_SET_ZNV:
-      /* Insn sets the Z,N,V flags of CC to recog_data.operand[0].
-  	 C is in an unusable state.  */
-      CC_STATUS_INIT;
-      cc_status.flags |= CC_NO_CARRY;
-      cc_status.value1 = recog_data.operand[0];
-      break;
-
-    case CC_COMPARE:
-      /* The insn is a compare instruction.  */
-      CC_STATUS_INIT;
-      cc_status.value1 = SET_SRC (body);
-      break;
-
-    case CC_CLOBBER:
-      /* Insn doesn't leave CC in a usable state.  */
-      CC_STATUS_INIT;
-      break;
-
-    default:
-      break;
-    }
-}
-
 /* Retrieve the data area that has been chosen for the given decl.  */
 
 v850_data_area

gcc/config/v850/v850.h

@@ -567,19 +567,7 @@ struct cum_arg { int nbytes; };
 
 #define SELECT_CC_MODE(OP, X, Y)       v850_select_cc_mode (OP, X, Y)
 
-/* Tell final.c how to eliminate redundant test instructions.  */
-
-/* Here we define machine-dependent flags and fields in cc_status
-   (see `conditions.h').  No extra ones are needed for the VAX.  */
-
-/* Store in cc_status the expressions
-   that the condition codes will describe
-   after execution of an instruction whose pattern is EXP.
-   Do not alter them if the instruction would not alter the cc's.  */
-
-#define CC_OVERFLOW_UNUSABLE 0x200
-#define CC_NO_CARRY CC_NO_OVERFLOW
-#define NOTICE_UPDATE_CC(EXP, INSN) notice_update_cc(EXP, INSN)
+#define NOTICE_UPDATE_CC(EXP, INSN)
 
 /* Nonzero if access to memory by bytes or half words is no faster
    than accessing full words.  */