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[Ada] Do not give warnings for compiler-generated entities by default

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gcc/ada/

	* gcc-interface/trans.cc (gnat_gimplify_expr) <SAVE_EXPR>: New case.
This commit is contained in:
Eric Botcazou
2022-05-24 01:39:08 +02:00
committed by Pierre-Marie de Rodat
parent cd7d1f448a
commit 889db59e6e
1 changed files with 11 additions and 0 deletions
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gcc/ada/gcc-interface/trans.cc
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@@ -8731,6 +8731,17 @@ gnat_gimplify_expr (tree *expr_p, gimple_seq *pre_p,
gimplify_and_add (TREE_OPERAND (expr, 0), pre_p);
return GS_OK;
case SAVE_EXPR:
op = TREE_OPERAND (expr, 0);
/* Propagate TREE_NO_WARNING from expression to temporary by using the
SAVE_EXPR itself as an intermediate step. See gimplify_save_expr. */
if (SAVE_EXPR_RESOLVED_P (expr))
TREE_NO_WARNING (op) = TREE_NO_WARNING (expr);
else
TREE_NO_WARNING (expr) = TREE_NO_WARNING (op);
break;
case UNCONSTRAINED_ARRAY_REF:
/* We should only do this if we are just elaborating for side effects,
but we can't know that yet. */