From f2c5fa498fa8014b96f4ba6d552e2eb50bdcf5bb Mon Sep 17 00:00:00 2001
From: David Malcolm <dmalcolm@redhat.com>
Date: Tue, 22 Mar 2016 21:28:02 -0400
Subject: [PATCH 09/91] FIXME: handle INSN_UID, flags, and extra text for 'r'

---
 gcc/read-md.c  |  2 +-
 gcc/read-rtl.c | 52 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 53 insertions(+), 1 deletion(-)

diff --git a/gcc/read-md.c b/gcc/read-md.c
index 6c58878..aab5f12 100644
--- a/gcc/read-md.c
+++ b/gcc/read-md.c
@@ -372,7 +372,7 @@ read_skip_spaces (void)
 	    if (c != '*')
 	      {
 		unread_char (c);
-		fatal_with_file_and_line ("stray '/' in file");
+		return '/';
 	      }
 
 	    prevc = 0;
diff --git a/gcc/read-rtl.c b/gcc/read-rtl.c
index 7549a91..c414e7f 100644
--- a/gcc/read-rtl.c
+++ b/gcc/read-rtl.c
@@ -1180,6 +1180,54 @@ read_rtx_code (const char *code_name)
   if (iterator)
     record_iterator_use (iterator, return_rtx);
 
+  /* Check for flags. */
+  do
+    {
+      i = read_char ();
+      if (i == '/')
+	{
+	  char flag_char = read_char ();
+	  fprintf (stderr, "FIXME: handling flag `/%c'\n", flag_char);
+	  switch (flag_char)
+	    {
+	    case 's':
+	      RTX_FLAG (return_rtx, in_struct) = 1;
+	      break;
+	    case 'v':
+	      RTX_FLAG (return_rtx, volatil) = 1;
+	      break;
+	    case 'u':
+	      RTX_FLAG (return_rtx, unchanging) = 1;
+	      break;
+	    case 'f':
+	      RTX_FLAG (return_rtx, frame_related) = 1;
+	      break;
+	    case 'j':
+	      RTX_FLAG (return_rtx, jump) = 1;
+	      break;
+	    case 'c':
+	      RTX_FLAG (return_rtx, call) = 1;
+	      break;
+	    case 'i':
+	      RTX_FLAG (return_rtx, return_val) = 1;
+	      break;
+	    default:
+	      fatal_with_file_and_line ("unrecognized flag: `%c'", flag_char);
+	    }
+	}
+      else
+	{
+	  unread_char (i);
+	  break;
+	}
+    } while (1);
+
+  if (INSN_CHAIN_CODE_P (code))
+    {
+      read_name (&name);
+      INSN_UID (return_rtx) = atoi (name.string);
+    }
+
   /* If what follows is `: mode ', read it and
      store the mode in the rtx.  */
 
@@ -1419,6 +1467,10 @@ read_rtx_code (const char *code_name)
 	validate_const_int (name.string);
 	set_regno_raw (return_rtx, atoi (name.string), 1);
 	REG_ATTRS (return_rtx) = NULL;
+#ifndef GENERATOR_FILE
+	read_name (&name); // FIXME
+	fprintf (stderr, "FIXME: 'r': extra string `%s'\n", name.string);
+#endif
 	break;
 
       default:
-- 
1.8.5.3