https://gcc.gnu.org/g:b0bcdcaf3cca79ff4e9285edaece7575de45f564

commit b0bcdcaf3cca79ff4e9285edaece7575de45f564
Author: Mikael Morin <mik...@gcc.gnu.org>
Date:   Mon Jul 7 14:38:51 2025 +0200

    Ajout commentaire

Diff:
---
 gcc/fortran/trans-array.cc | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/gcc/fortran/trans-array.cc b/gcc/fortran/trans-array.cc
index 3cd6d90f47e7..abf535cdaedb 100644
--- a/gcc/fortran/trans-array.cc
+++ b/gcc/fortran/trans-array.cc
@@ -11352,6 +11352,19 @@ concat_str_length (gfc_expr* expr)
 }
 
 
+/* Among the scalarization chain of LOOP, find the element associated with an
+   allocatable array on the lhs of an assignment and evaluate its fields
+   (bounds, offset, etc) to new variables, putting the new code in BLOCK.  This
+   function is to be called after putting the reallocation code in BLOCK and
+   before the beginning of the scalarization loop body.
+
+   The fields to be saved are expected to hold on entry to the function
+   expressions referencing the array descriptor.  Especially the expressions
+   shouldn't be already temporary variable references as the value saved before
+   reallocation would be incorrect after reallocation.
+   At the end of the function, the expressions have been replaced with variable
+   references.  */
+
 static void
 update_reallocated_descriptor (stmtblock_t *block, gfc_loopinfo *loop)
 {

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