[gcc r12-5863] Pass GIMPLE statement to compute_objsize.

[Martin Sebor <msebor@gcc.gnu.org>]

https://gcc.gnu.org/g:9354a7d70caef1c94b8d0a66bb2fd4d86c037e7d

commit r12-5863-g9354a7d70caef1c94b8d0a66bb2fd4d86c037e7d
Author: Martin Sebor <msebor@redhat.com>
Date:   Sat Dec 4 16:57:48 2021 -0700

    Pass GIMPLE statement to compute_objsize.
    
    gcc/ChangeLog:
    
            * gimple-ssa-warn-restrict.c (builtin_access::builtin_access): Pass
            GIMPLE statement to compute_objsize.
            * pointer-query.cc (compute_objsize): Add a statement argument.
            * pointer-query.h (compute_objsize): Define a new overload.

Diff:
---
 gcc/gimple-ssa-warn-restrict.c |  4 ++--
 gcc/pointer-query.cc           | 10 +++++-----
 gcc/pointer-query.h            |  9 +++++++--
 3 files changed, 14 insertions(+), 9 deletions(-)

diff --git a/gcc/gimple-ssa-warn-restrict.c b/gcc/gimple-ssa-warn-restrict.c
index d1df9ca8d4f..ca2d4c2c32e 100644
--- a/gcc/gimple-ssa-warn-restrict.c
+++ b/gcc/gimple-ssa-warn-restrict.c
@@ -777,7 +777,7 @@ builtin_access::builtin_access (range_query *query, gimple *call,
       if (!POINTER_TYPE_P (TREE_TYPE (addr)))
 	addr = build1 (ADDR_EXPR, (TREE_TYPE (addr)), addr);
 
-      if (tree dstsize = compute_objsize (addr, ostype))
+      if (tree dstsize = compute_objsize (addr, call, ostype))
 	dst.basesize = wi::to_offset (dstsize);
       else if (POINTER_TYPE_P (TREE_TYPE (addr)))
 	dst.basesize = HOST_WIDE_INT_MIN;
@@ -791,7 +791,7 @@ builtin_access::builtin_access (range_query *query, gimple *call,
       if (!POINTER_TYPE_P (TREE_TYPE (addr)))
 	addr = build1 (ADDR_EXPR, (TREE_TYPE (addr)), addr);
 
-      if (tree srcsize = compute_objsize (addr, ostype))
+      if (tree srcsize = compute_objsize (addr, call, ostype))
 	src.basesize = wi::to_offset (srcsize);
       else if (POINTER_TYPE_P (TREE_TYPE (addr)))
 	src.basesize = HOST_WIDE_INT_MIN;
diff --git a/gcc/pointer-query.cc b/gcc/pointer-query.cc
index a8c9671e3ba..c75c4da6b60 100644
--- a/gcc/pointer-query.cc
+++ b/gcc/pointer-query.cc
@@ -1645,7 +1645,7 @@ handle_array_ref (tree aref, gimple *stmt, bool addr, int ostype,
   offset_int orng[2];
   tree off = pref->eval (TREE_OPERAND (aref, 1));
   range_query *const rvals = qry ? qry->rvals : NULL;
-  if (!get_offset_range (off, NULL, orng, rvals))
+  if (!get_offset_range (off, stmt, orng, rvals))
     {
       /* Set ORNG to the maximum offset representable in ptrdiff_t.  */
       orng[1] = wi::to_offset (TYPE_MAX_VALUE (ptrdiff_type_node));
@@ -1732,7 +1732,7 @@ handle_mem_ref (tree mref, gimple *stmt, int ostype, access_ref *pref,
   offset_int orng[2];
   tree off = pref->eval (TREE_OPERAND (mref, 1));
   range_query *const rvals = qry ? qry->rvals : NULL;
-  if (!get_offset_range (off, NULL, orng, rvals))
+  if (!get_offset_range (off, stmt, orng, rvals))
     {
       /* Set ORNG to the maximum offset representable in ptrdiff_t.  */
       orng[1] = wi::to_offset (TYPE_MAX_VALUE (ptrdiff_type_node));
@@ -1948,7 +1948,7 @@ compute_objsize_r (tree ptr, gimple *stmt, int ostype, access_ref *pref,
 
       offset_int orng[2];
       tree off = pref->eval (TREE_OPERAND (ptr, 1));
-      if (get_offset_range (off, NULL, orng, rvals))
+      if (get_offset_range (off, stmt, orng, rvals))
 	pref->add_offset (orng[0], orng[1]);
       else
 	pref->add_max_offset ();
@@ -2197,13 +2197,13 @@ compute_objsize (tree ptr, gimple *stmt, int ostype, access_ref *pref,
    once callers transition to one of the two above.  */
 
 tree
-compute_objsize (tree ptr, int ostype, tree *pdecl /* = NULL */,
+compute_objsize (tree ptr, gimple *stmt, int ostype, tree *pdecl /* = NULL */,
 		 tree *poff /* = NULL */, range_query *rvals /* = NULL */)
 {
   /* Set the initial offsets to zero and size to negative to indicate
      none has been computed yet.  */
   access_ref ref;
-  tree size = compute_objsize (ptr, nullptr, ostype, &ref, rvals);
+  tree size = compute_objsize (ptr, stmt, ostype, &ref, rvals);
   if (!size || !ref.base0)
     return NULL_TREE;
 
diff --git a/gcc/pointer-query.h b/gcc/pointer-query.h
index 82cb81b3987..cbc87c86ed3 100644
--- a/gcc/pointer-query.h
+++ b/gcc/pointer-query.h
@@ -260,8 +260,13 @@ inline tree compute_objsize (tree ptr, int ostype, access_ref *pref)
 }
 
 /* Legacy/transitional API.  Should not be used in new code.  */
-extern tree compute_objsize (tree, int, tree * = nullptr, tree * = nullptr,
-			     range_query * = nullptr);
+extern tree compute_objsize (tree, gimple *, int, tree * = nullptr,
+			     tree * = nullptr, range_query * = nullptr);
+inline tree compute_objsize (tree ptr, int ostype, tree *pdecl = nullptr,
+			     tree *poff = nullptr, range_query *rvals = nullptr)
+{
+  return compute_objsize (ptr, nullptr, ostype, pdecl, poff, rvals);
+}
 
 /* Return the field at the constant offset.  */
 extern tree field_at_offset (tree, tree, HOST_WIDE_INT,