par-ch4.adb (P_Simple_Expression): Fold long sequences of concatenations of string literals into a single literal...
2007-08-31 Bob Duff <duff@adacore.com>
* par-ch4.adb (P_Simple_Expression): Fold long sequences of
concatenations of string literals into a single literal, in order to
avoid very deep recursion in the front end, which was causing stack
overflow.
* sem_eval.adb (Eval_Concatenation): If the left operand is the empty
string, and the right operand is a string literal (the case of "" &
"..."), optimize by avoiding copying the right operand -- just use the
value of the right operand directly.
* stringt.adb (Store_String_Chars): Optimize by growing the
String_Chars table all at once, rather than appending characters one by
one.
(Write_String_Table_Entry): If the string to be printed is very long,
just print the first few characters, followed by the length. Otherwise,
doing "pn(n)" in the debugger can take an extremely long time.
* sem_prag.adb (Process_Interface_Name): Replace loop doing
Store_String_Char with Store_String_Chars.
From-SVN: r127977
