[gcc r13-1911] const_tree conversion of vrange::supports_*

[gcc r13-1911] const_tree conversion of vrange::supports_*

[Aldy Hernandez]

https://gcc.gnu.org/g:7e029e067d81f714419cd196fdd506b06881e0c9

commit r13-1911-g7e029e067d81f714419cd196fdd506b06881e0c9
Author: Aldy Hernandez <aldyh@redhat.com>
Date:   Sun Jul 31 13:36:59 2022 +0200

    const_tree conversion of vrange::supports_*
    
    Make all vrange::supports_*_p methods const_tree as they can end up
    being called from functions that are const_tree.
    
    Tested on x86-64 Linux.
    
    gcc/ChangeLog:
    
            * value-range.cc (vrange::supports_type_p): Use const_tree.
            (irange::supports_type_p): Same.
            (frange::supports_type_p): Same.
            * value-range.h (Value_Range::supports_type_p): Same.
            (irange::supports_p): Same.

Diff:
---
 gcc/value-range.cc |  6 +++---
 gcc/value-range.h  | 16 ++++++++--------
 2 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/gcc/value-range.cc b/gcc/value-range.cc
index 2923f4f5a0e..7adbf55c6a6 100644
--- a/gcc/value-range.cc
+++ b/gcc/value-range.cc
@@ -105,7 +105,7 @@ vrange::type () const
 }
 
 bool
-vrange::supports_type_p (tree) const
+vrange::supports_type_p (const_tree) const
 {
   return false;
 }
@@ -229,7 +229,7 @@ vrange::dump (FILE *file) const
 }
 
 bool
-irange::supports_type_p (tree type) const
+irange::supports_type_p (const_tree type) const
 {
   return supports_p (type);
 }
@@ -416,7 +416,7 @@ frange::operator== (const frange &src) const
 }
 
 bool
-frange::supports_type_p (tree type) const
+frange::supports_type_p (const_tree type) const
 {
   return supports_p (type);
 }
diff --git a/gcc/value-range.h b/gcc/value-range.h
index e43fbe30f27..c6ab955c407 100644
--- a/gcc/value-range.h
+++ b/gcc/value-range.h
@@ -78,7 +78,7 @@ public:
   virtual void accept (const class vrange_visitor &v) const = 0;
   virtual void set (tree, tree, value_range_kind = VR_RANGE);
   virtual tree type () const;
-  virtual bool supports_type_p (tree type) const;
+  virtual bool supports_type_p (const_tree type) const;
   virtual void set_varying (tree type);
   virtual void set_undefined ();
   virtual bool union_ (const vrange &);
@@ -122,8 +122,8 @@ public:
   virtual void set_undefined () override;
 
   // Range types.
-  static bool supports_p (tree type);
-  virtual bool supports_type_p (tree type) const override;
+  static bool supports_p (const_tree type);
+  virtual bool supports_type_p (const_tree type) const override;
   virtual tree type () const override;
 
   // Iteration over sub-ranges.
@@ -336,7 +336,7 @@ class frange : public vrange
 public:
   frange ();
   frange (const frange &);
-  static bool supports_p (tree type)
+  static bool supports_p (const_tree type)
   {
     // Disabled until floating point range-ops come live.
     return 0 && SCALAR_FLOAT_TYPE_P (type);
@@ -347,7 +347,7 @@ public:
   virtual void set_undefined () override;
   virtual bool union_ (const vrange &) override;
   virtual bool intersect (const vrange &) override;
-  virtual bool supports_type_p (tree type) const override;
+  virtual bool supports_type_p (const_tree type) const override;
   virtual void accept (const vrange_visitor &v) const override;
   frange& operator= (const frange &);
   bool operator== (const frange &) const;
@@ -457,7 +457,7 @@ public:
   operator vrange &();
   operator const vrange &() const;
   void dump (FILE *) const;
-  static bool supports_type_p (tree type);
+  static bool supports_type_p (const_tree type);
 
   // Convenience methods for vrange compatability.
   void set (tree min, tree max, value_range_kind kind = VR_RANGE)
@@ -588,7 +588,7 @@ Value_Range::operator const vrange &() const
 // Return TRUE if TYPE is supported by the vrange infrastructure.
 
 inline bool
-Value_Range::supports_type_p (tree type)
+Value_Range::supports_type_p (const_tree type)
 {
   return irange::supports_p (type) || frange::supports_p (type);
 }
@@ -730,7 +730,7 @@ irange::nonzero_p () const
 }
 
 inline bool
-irange::supports_p (tree type)
+irange::supports_p (const_tree type)
 {
   return INTEGRAL_TYPE_P (type) || POINTER_TYPE_P (type);
 }