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[COMMITTED] ada: Add assertion for the implementation of storage models

Message ID 20221124101258.445328-1-poulhies@adacore.com
State Committed
Commit 7f77aa6b2f04781faa78373add11538d276c8ae4
Headers
Series [COMMITTED] ada: Add assertion for the implementation of storage models |

Commit Message

Marc Poulhiès Nov. 24, 2022, 10:12 a.m. UTC 
  From: Eric Botcazou <ebotcazou@adacore.com>

We cannot generate a call to memset for an aggregate with an Others choice
when the target of the assignment has a storage model with Copy_To routine.

gcc/ada/

	* gcc-interface/trans.cc (gnat_to_gnu) <N_Assignment_Statement>: Add
	assertion that memset is not supposed to be used when the target has
	a storage model with Copy_To routine.

Tested on x86_64-pc-linux-gnu, committed on master.

---
 gcc/ada/gcc-interface/trans.cc | 3 +++
 1 file changed, 3 insertions(+)
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Patch

diff --git a/gcc/ada/gcc-interface/trans.cc b/gcc/ada/gcc-interface/trans.cc
index 1cd621a9377..b9d7c015a73 100644
--- a/gcc/ada/gcc-interface/trans.cc
+++ b/gcc/ada/gcc-interface/trans.cc
@@ -7450,6 +7450,9 @@  gnat_to_gnu (Node_Id gnat_node)
 	  else if (Present (gnat_smo)
 		   && Present (Storage_Model_Copy_To (gnat_smo)))
 	    {
+	      /* We obviously cannot use memset in this case.  */
+	      gcc_assert (!use_memset_p);
+
 	      tree t = remove_conversions (gnu_rhs, false);
 
 	      /* If a storage model load is present on the RHS then instantiate