* [Ada] Spurious accessibility error on allocator
@ 2020-07-15 13:45 Pierre-Marie de Rodat
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From: Pierre-Marie de Rodat @ 2020-07-15 13:45 UTC (permalink / raw)
To: gcc-patches; +Cc: Justin Squirek
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This patch fixes an error in the compiler whereby an allocator for a
limited type may cause spurious accessibility errors due to a
miscalculation of access levels on interally generated temporaries.
Tested on x86_64-pc-linux-gnu, committed on trunk
gcc/ada/
* exp_ch6.adb (Make_Build_In_Place_Call_Allocator): Normalize
the associated node for internally generated objects to be like
their SOAAT counter-parts.
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diff --git a/gcc/ada/exp_ch6.adb b/gcc/ada/exp_ch6.adb
--- a/gcc/ada/exp_ch6.adb
+++ b/gcc/ada/exp_ch6.adb
@@ -9732,6 +9732,12 @@ package body Exp_Ch6 is
New_Occurrence_Of (Etype (BIP_Func_Call), Loc),
Expression => New_Copy_Tree (BIP_Func_Call))));
+ -- Manually set the associated node for the anonymous access type to
+ -- be its local declaration to avoid confusing and complicating
+ -- the accessibility machinary.
+
+ Set_Associated_Node_For_Itype (Anon_Type, Tmp_Decl);
+
Expander_Mode_Save_And_Set (False);
Insert_Action (Allocator, Tmp_Decl);
Expander_Mode_Restore;
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