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* [gcc r13-1423] [Ada] Plug loophole for built-in-place return with limited_with clause
@ 2022-07-04 7:49 Pierre-Marie de Rodat
0 siblings, 0 replies; only message in thread
From: Pierre-Marie de Rodat @ 2022-07-04 7:49 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:bdd5056736b642f0124e6cb26f9c2fd8be028908
commit r13-1423-gbdd5056736b642f0124e6cb26f9c2fd8be028908
Author: Eric Botcazou <ebotcazou@adacore.com>
Date: Tue May 24 01:14:18 2022 +0200
[Ada] Plug loophole for built-in-place return with limited_with clause
When the result type of a function requiring built-in-place return is
only visible through a limited_with clause, the compiled needs to wait
for the nonlimited view to be available in order to compute whether
the built-in-place return is needed, and this comprises tagging the
function with the Returns_By_Ref flag.
gcc/ada/
* exp_ch6.adb (Build_In_Place_Formal): Also compute Returns_By_Ref
for the function if the extra formals were not built initially.
Diff:
---
gcc/ada/exp_ch6.adb | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/gcc/ada/exp_ch6.adb b/gcc/ada/exp_ch6.adb
index 15a20392457..88157b946ea 100644
--- a/gcc/ada/exp_ch6.adb
+++ b/gcc/ada/exp_ch6.adb
@@ -850,11 +850,12 @@ package body Exp_Ch6 is
-- The return type in the function declaration may have been a limited
-- view, and the extra formals for the function were not generated at
-- that point. At the point of call the full view must be available and
- -- the extra formals can be created.
+ -- the extra formals can be created and Returns_By_Ref computed.
if No (Extra_Formal) then
Create_Extra_Formals (Func);
Extra_Formal := Extra_Formals (Func);
+ Compute_Returns_By_Ref (Func);
end if;
-- We search for a formal with a matching suffix. We can't search
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