compare-elim.c (equivalent_reg_at_start): Adjust outdated comment.

	* compare-elim.c (equivalent_reg_at_start): Adjust outdated comment.
	* config/visium/visium.c (single_set_and_flags): Likewise.
	* config/visium/visium.md (Substitutions): Likewise.

From-SVN: r248141

gcc/ChangeLog

+2017-05-17  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* compare-elim.c (equivalent_reg_at_start): Adjust outdated comment.
+	* config/visium/visium.c (single_set_and_flags): Likewise.
+	* config/visium/visium.md (Substitutions): Likewise.
+
 2017-05-17  Martin Liska  <mliska@suse.cz>
 
 	* cfg.c: Introduce dump_flags_t type and

gcc/compare-elim.c

@@ -541,29 +541,29 @@ equivalent_reg_at_start (rtx reg, rtx_insn *end, rtx_insn *start)
       df_ref def;
 
       /* Note that the BB_HEAD is always either a note or a label, but in
-	 any case it means that IN_A is defined outside the block.  */
+	 any case it means that REG is defined outside the block.  */
       if (insn == bb_head)
 	return NULL_RTX;
       if (NOTE_P (insn) || DEBUG_INSN_P (insn))
 	continue;
 
-      /* Find a possible def of IN_A in INSN.  */
+      /* Find a possible def of REG in INSN.  */
       FOR_EACH_INSN_DEF (def, insn)
 	if (DF_REF_REGNO (def) == REGNO (reg))
 	  break;
 
-      /* No definitions of IN_A; continue searching.  */
+      /* No definitions of REG; continue searching.  */
       if (def == NULL)
 	continue;
 
-      /* Bail if this is not a totally normal set of IN_A.  */
+      /* Bail if this is not a totally normal set of REG.  */
       if (DF_REF_IS_ARTIFICIAL (def))
 	return NULL_RTX;
       if (DF_REF_FLAGS (def) & abnormal_flags)
 	return NULL_RTX;
 
       /* We've found an insn between the compare and the clobber that sets
-	 IN_A.  Given that pass_cprop_hardreg has not yet run, we still find
+	 REG.  Given that pass_cprop_hardreg has not yet run, we still find
 	 situations in which we can usefully look through a copy insn.  */
       rtx x = single_set (insn);
       if (x == NULL_RTX)

gcc/config/visium/visium.c

@@ -922,8 +922,8 @@ empty_delay_slot (rtx_insn *insn)
   return 1;
 }
 
-/* Wrapper around single_set which returns the first SET of a pair if the
-   second SET is to the flags register.  */
+/* Wrapper around single_set which returns the second SET of a pair if the
+   first SET is to the flags register.  */
 
 static rtx
 single_set_and_flags (rtx_insn *insn)

gcc/config/visium/visium.md

@@ -240,7 +240,7 @@
 ;;
 ;; Substitutions.
 ;;
-;; They are used to define the second instruction of the pairs required by
+;; They are used to define the first instruction of the pairs required by
 ;; the postreload compare elimination pass, with a first variant for the
 ;; logical insns and a second variant for the arithmetic insns.
 ;;