From: John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
Date: Sun, 5 Dec 2004 04:05:59 +0000 (+0000)
Subject: re PR middle-end/18730 (cppexp.c:1076: error: unrecognizable insn)
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=91373fe8f7f94b846d06ada9bd3766b694eebc4f;p=gcc.git

re PR middle-end/18730 (cppexp.c:1076: error: unrecognizable insn)

	PR middle-end/18730
	* emit-rtl.c (get_first_nonnote_insn, get_last_nonnote_insn): When
	the first/last insn is a sequence, return the first/last insn of the
	sequence.

From-SVN: r91742
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 3e609a37c23..e889dbc82e8 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,10 @@
 2004-12-04  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
 
+	PR middle-end/18730
+	* emit-rtl.c (get_first_nonnote_insn, get_last_nonnote_insn): When
+	the first/last insn is a sequence, return the first/last insn of the
+	sequence.
+
 	PR bootstrap/18804
 	* mklibgcc.in (vis_hide): Use implementation instead of declaration
 	for test function.
diff --git a/gcc/emit-rtl.c b/gcc/emit-rtl.c
index 6858f987ad6..793e2df8da4 100644
--- a/gcc/emit-rtl.c
+++ b/gcc/emit-rtl.c
@@ -2712,9 +2712,23 @@ get_last_insn_anywhere (void)
 rtx
 get_first_nonnote_insn (void)
 {
-  rtx insn;
+  rtx insn = first_insn;
+
+  if (insn)
+    {
+      if (NOTE_P (insn))
+	for (insn = next_insn (insn);
+	     insn && NOTE_P (insn);
+	     insn = next_insn (insn))
+	  continue;
+      else
+	{
+	  if (GET_CODE (insn) == INSN
+	      && GET_CODE (PATTERN (insn)) == SEQUENCE)
+	    insn = XVECEXP (PATTERN (insn), 0, 0);
+	}
+    }
 
-  for (insn = first_insn; insn && NOTE_P (insn); insn = next_insn (insn));
   return insn;
 }
 
@@ -2724,9 +2738,24 @@ get_first_nonnote_insn (void)
 rtx
 get_last_nonnote_insn (void)
 {
-  rtx insn;
+  rtx insn = last_insn;
+
+  if (insn)
+    {
+      if (NOTE_P (insn))
+	for (insn = previous_insn (insn);
+	     insn && NOTE_P (insn);
+	     insn = previous_insn (insn))
+	  continue;
+      else
+	{
+	  if (GET_CODE (insn) == INSN
+	      && GET_CODE (PATTERN (insn)) == SEQUENCE)
+	    insn = XVECEXP (PATTERN (insn), 0,
+			    XVECLEN (PATTERN (insn), 0) - 1);
+	}
+    }
 
-  for (insn = last_insn; insn && NOTE_P (insn); insn = previous_insn (insn));
   return insn;
 }