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authorPiotr Trojanek <trojanek@adacore.com>2023-02-15 21:20:42 +0100
committerMarc Poulhiès <poulhies@adacore.com>2023-05-23 09:50:58 +0200
commit53ed0028adacb4e9c033b236805ae409823178ab (patch)
tree7f2a3345d4015ad10c3183cf1e399f233c4a8a2c
parent507fe403b505fdaeffcc1beb2188e86f9ab8de9f (diff)
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ada: Suppress warning about Subprogram_Variant failing at run time
Warning about check failing at run time is likely spurious for mutually recursive subprograms with multiple variant clauses. These will be non-trivial to detect, so we simply suppress the warning altogether for all subprogram variants. gcc/ada/ * exp_prag.adb (Expand_Pragma_Check): Suppress warning for checks of subprogram variants.
-rw-r--r--gcc/ada/exp_prag.adb7
1 files changed, 7 insertions, 0 deletions
diff --git a/gcc/ada/exp_prag.adb b/gcc/ada/exp_prag.adb
index ceb27848..c6b3bed 100644
--- a/gcc/ada/exp_prag.adb
+++ b/gcc/ada/exp_prag.adb
@@ -564,6 +564,13 @@ package body Exp_Prag is
then
null;
+ -- For Subprogram_Variant suppress the warning altogether, because
+ -- for mutually recursive subprograms with multiple variant clauses
+ -- some of the clauses might have expressions that are only meant for
+ -- verification and would always fail when executed.
+
+ elsif Nam = Name_Subprogram_Variant then
+ null;
elsif Nam = Name_Assert then
Error_Msg_N ("?.a?assertion will fail at run time", N);
else