c/7344: performance regression on huge case statements

Kaveh R. Ghazi ghazi@caip.rutgers.edu
Tue Oct 15 11:50:00 GMT 2002


Jan,

This hunk:

*** expr.c	7 Oct 2002 07:37:09 -0000	1.486
--- expr.c	11 Oct 2002 14:49:57 -0000
*************** do_tablejump (index, mode, range, table_
*** 10941,10946 ****
--- 10930,10938 ----
       enum machine_mode mode;
  {
    rtx temp, vector;
+ 
+   if (range > cfun->max_jumptable_ents)
+     cfun->max_jumptable_ents = range;

can't be right, `range' is an rtx and ->max_jumptable_ents is an int.

It causes a warning regression in gcc (and a hard error with irix6-cc.)

		--Kaveh

PS: Geoff, an automated warning regression checker would have caught
this... ;-)

--
Kaveh R. Ghazi			ghazi@caip.rutgers.edu



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