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This patch fixes a bug in unnesting, which is used by the llvm back end. Exp_Unst relies on the Scope field of nodes to detect up-level references. Temps created by Prepend_Constructor_Procedure_Prologue could have an incorrect Scope, causing Exp_Unst to use an up-level reference to an activation record to implement up-level references. That won't work; Exp_Unst is supposed to REMOVE up-level references. This patch corrects the Scope of such temps. gcc/ada/ChangeLog: * exp_ch6.adb (Prepend_Constructor_Procedure_Prologue): Push/Pop the procedure scope, so that temps created herein get the right Scope.
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