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[PATCH 025/236] make_insn_raw returns an rtx_insn


Doing so means strengthening the types of the make_raw callbacks within
emit-rtl.c from rtx to rtx_insn * as used by the emit_pattern_*
internal functions.  There's more that could be done in terms of the
params to these functions, but we'll save that for later.

gcc/
	* rtl.h (make_insn_raw): Strengthen return type from rtx to
	rtx_insn *.

	* emit-rtl.c (make_insn_raw): Strengthen return type and local
	"insn" from rtx to rtx_insn *.
	(make_debug_insn_raw): Strengthen return type from rtx to
	rtx_insn *; strengthen local "insn" from rtx to rtx_debug_insn *.
	(make_jump_insn_raw):  Strengthen return type from rtx to
	rtx_insn *; strengthen local "insn" from rtx to rtx_jump_insn *.
	(make_call_insn_raw):  Strengthen return type from rtx to
	rtx_insn *; strengthen local "insn" from rtx to rtx_call_insn *.
	(emit_pattern_before_noloc): Strengthen return type of "make_raw"
	callback from rtx to rtx_insn *; likewise for local "insn" and
	"next", adding a checked cast to rtx_insn in the relevant cases of
	the switch statement.
	(emit_pattern_after_noloc): Strengthen return type of "make_raw"
	callback from rtx to rtx_insn *.
	(emit_pattern_after_setloc): Likewise.
	(emit_pattern_after): Likewise.
	(emit_pattern_before_setloc): Likewise.
	(emit_pattern_before): Likewise.
---
 gcc/emit-rtl.c | 42 +++++++++++++++++++++---------------------
 gcc/rtl.h      |  2 +-
 2 files changed, 22 insertions(+), 22 deletions(-)

diff --git a/gcc/emit-rtl.c b/gcc/emit-rtl.c
index 39e73a2..bbc7fb7 100644
--- a/gcc/emit-rtl.c
+++ b/gcc/emit-rtl.c
@@ -3747,12 +3747,12 @@ try_split (rtx pat, rtx trial, int last)
 /* Make and return an INSN rtx, initializing all its slots.
    Store PATTERN in the pattern slots.  */
 
-rtx
+rtx_insn *
 make_insn_raw (rtx pattern)
 {
-  rtx insn;
+  rtx_insn *insn;
 
-  insn = rtx_alloc (INSN);
+  insn = as_a <rtx_insn *> (rtx_alloc (INSN));
 
   INSN_UID (insn) = cur_insn_uid++;
   PATTERN (insn) = pattern;
@@ -3778,12 +3778,12 @@ make_insn_raw (rtx pattern)
 
 /* Like `make_insn_raw' but make a DEBUG_INSN instead of an insn.  */
 
-static rtx
+static rtx_insn *
 make_debug_insn_raw (rtx pattern)
 {
-  rtx insn;
+  rtx_debug_insn *insn;
 
-  insn = rtx_alloc (DEBUG_INSN);
+  insn = as_a <rtx_debug_insn *> (rtx_alloc (DEBUG_INSN));
   INSN_UID (insn) = cur_debug_insn_uid++;
   if (cur_debug_insn_uid > MIN_NONDEBUG_INSN_UID)
     INSN_UID (insn) = cur_insn_uid++;
@@ -3799,12 +3799,12 @@ make_debug_insn_raw (rtx pattern)
 
 /* Like `make_insn_raw' but make a JUMP_INSN instead of an insn.  */
 
-static rtx
+static rtx_insn *
 make_jump_insn_raw (rtx pattern)
 {
-  rtx insn;
+  rtx_jump_insn *insn;
 
-  insn = rtx_alloc (JUMP_INSN);
+  insn = as_a <rtx_jump_insn *> (rtx_alloc (JUMP_INSN));
   INSN_UID (insn) = cur_insn_uid++;
 
   PATTERN (insn) = pattern;
@@ -3819,12 +3819,12 @@ make_jump_insn_raw (rtx pattern)
 
 /* Like `make_insn_raw' but make a CALL_INSN instead of an insn.  */
 
-static rtx
+static rtx_insn *
 make_call_insn_raw (rtx pattern)
 {
-  rtx insn;
+  rtx_call_insn *insn;
 
-  insn = rtx_alloc (CALL_INSN);
+  insn = as_a <rtx_call_insn *> (rtx_alloc (CALL_INSN));
   INSN_UID (insn) = cur_insn_uid++;
 
   PATTERN (insn) = pattern;
@@ -4258,9 +4258,9 @@ reorder_insns (rtx from, rtx to, rtx after)
 
 static rtx
 emit_pattern_before_noloc (rtx x, rtx before, rtx last, basic_block bb,
-                           rtx (*make_raw) (rtx))
+                           rtx_insn *(*make_raw) (rtx))
 {
-  rtx insn;
+  rtx_insn *insn;
 
   gcc_assert (before);
 
@@ -4276,10 +4276,10 @@ emit_pattern_before_noloc (rtx x, rtx before, rtx last, basic_block bb,
     case CODE_LABEL:
     case BARRIER:
     case NOTE:
-      insn = x;
+      insn = as_a <rtx_insn *> (x);
       while (insn)
 	{
-	  rtx next = NEXT_INSN (insn);
+	  rtx_insn *next = NEXT_INSN (insn);
 	  add_insn_before (insn, before, bb);
 	  last = insn;
 	  insn = next;
@@ -4412,7 +4412,7 @@ emit_insn_after_1 (rtx first, rtx after, basic_block bb)
 
 static rtx
 emit_pattern_after_noloc (rtx x, rtx after, basic_block bb,
-			  rtx (*make_raw)(rtx))
+			  rtx_insn *(*make_raw)(rtx))
 {
   rtx last = after;
 
@@ -4579,7 +4579,7 @@ emit_note_before (enum insn_note subtype, rtx before)
 
 static rtx
 emit_pattern_after_setloc (rtx pattern, rtx after, int loc,
-			   rtx (*make_raw) (rtx))
+			   rtx_insn *(*make_raw) (rtx))
 {
   rtx last = emit_pattern_after_noloc (pattern, after, NULL, make_raw);
 
@@ -4604,7 +4604,7 @@ emit_pattern_after_setloc (rtx pattern, rtx after, int loc,
 
 static rtx
 emit_pattern_after (rtx pattern, rtx after, bool skip_debug_insns,
-		    rtx (*make_raw) (rtx))
+		    rtx_insn *(*make_raw) (rtx))
 {
   rtx prev = after;
 
@@ -4682,7 +4682,7 @@ emit_debug_insn_after (rtx pattern, rtx after)
 
 static rtx
 emit_pattern_before_setloc (rtx pattern, rtx before, int loc, bool insnp,
-			    rtx (*make_raw) (rtx))
+			    rtx_insn *(*make_raw) (rtx))
 {
   rtx first = PREV_INSN (before);
   rtx last = emit_pattern_before_noloc (pattern, before,
@@ -4714,7 +4714,7 @@ emit_pattern_before_setloc (rtx pattern, rtx before, int loc, bool insnp,
 
 static rtx
 emit_pattern_before (rtx pattern, rtx before, bool skip_debug_insns,
-		     bool insnp, rtx (*make_raw) (rtx))
+		     bool insnp, rtx_insn *(*make_raw) (rtx))
 {
   rtx next = before;
 
diff --git a/gcc/rtl.h b/gcc/rtl.h
index 85b725a..51e8a45 100644
--- a/gcc/rtl.h
+++ b/gcc/rtl.h
@@ -2400,7 +2400,7 @@ extern rtx gen_clobber (rtx);
 extern rtx emit_clobber (rtx);
 extern rtx gen_use (rtx);
 extern rtx emit_use (rtx);
-extern rtx make_insn_raw (rtx);
+extern rtx_insn *make_insn_raw (rtx);
 extern void add_function_usage_to (rtx, rtx);
 extern rtx_call_insn *last_call_insn (void);
 extern rtx_insn *previous_insn (rtx);
-- 
1.8.5.3


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