[Bug debug/18259] New: -fdump-tree-original omits real constant values

["dspeyer at wam dot umd dot edu" <gcc-bugzilla at gcc dot gnu dot org>]

A command of the form:
  g++ -c -fdump-tree-original foo.cc
produces a file foo.cc.original which contains a nearly-complete parse tree. 
The parse tree in question does *not* contain the values of real constants. 
This makes the tree inadequate for any program which tries to analyse the tree.

Here is a patch:
--- /home/gui/gcc-3.4.2-old/gcc/tree-dump.c     2003-12-18 15:09:40.000000000 -0500
+++ /home/gui/gcc-3.4.2/gcc/tree-dump.c 2004-10-31 17:17:23.000000000 -0500
@@ -176,6 +176,19 @@
   di->column += 14;
 }
 
+/* Dump real number R using FIELD to identify it.  */
+
+void
+dump_real (dump_info_p di, const char *field, const REAL_VALUE_TYPE *r)
+{
+  char buf[16];
+  real_to_decimal(buf, r, sizeof(buf), 0, TRUE);
+  dump_maybe_newline (di);
+  di->column += 
+    fprintf (di->stream, "%-4s: %s ", field, buf);
+}
+
+
 /* Dump the string S.  */
 
 void
@@ -509,6 +522,11 @@
       dump_int (di, "lngt", TREE_STRING_LENGTH (t));
       break;
 
+
+    case REAL_CST:
+      dump_real (di, "valu", TREE_REAL_CST_PTR (t));
+      break;                  
+
     case TRUTH_NOT_EXPR:
     case ADDR_EXPR:
     case INDIRECT_REF:
--- /home/gui/gcc-3.4.2-old/gcc/tree-dump.h     2003-06-08 10:21:54.000000000 -0400
+++ /home/gui/gcc-3.4.2/gcc/tree-dump.h 2004-10-31 17:17:34.000000000 -0500
@@ -22,6 +22,8 @@
 #ifndef GCC_TREE_DUMP_H
 #define GCC_TREE_DUMP_H
 
+#include "real.h"
+
 /* Flags used with queue functions.  */
 #define DUMP_NONE     0
 #define DUMP_BINFO    1
@@ -79,6 +81,7 @@
 
 extern void dump_pointer (dump_info_p, const char *, void *);
 extern void dump_int (dump_info_p, const char *, int);
+extern void dump_real (dump_info_p, const char *, const REAL_VALUE_TYPE *);
 extern void dump_string (dump_info_p, const char *);
 extern void dump_stmt (dump_info_p, tree);
 extern void dump_next_stmt (dump_info_p, tree);

-- 
           Summary: -fdump-tree-original omits real constant values
           Product: gcc
           Version: 3.4.2
            Status: UNCONFIRMED
          Severity: minor
          Priority: P2
         Component: debug
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: dspeyer at wam dot umd dot edu
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: same
  GCC host triplet: Linux 2.4.20 / i686 / GLIBC 2.3.2
GCC target triplet: same


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18259