* [patch] for PR 17560
@ 2004-10-09 8:15 Zdenek Dvorak
2004-10-11 18:29 ` Richard Henderson
0 siblings, 1 reply; 2+ messages in thread
From: Zdenek Dvorak @ 2004-10-09 8:15 UTC (permalink / raw)
To: gcc-patches
Hello,
scev needs the irreducible loops to be marked, otherwise it can
get stuck in one and recurse infinitely.
Bootstrapped & regtested on x86_64.
Zdenek
PR tree-optimization/17560
* predict.c (tree_estimate_probability): Mark irreducible
loops.
Index: predict.c
===================================================================
RCS file: /cvs/gcc/gcc/gcc/predict.c,v
retrieving revision 1.128
diff -c -3 -p -r1.128 predict.c
*** predict.c 28 Sep 2004 07:59:48 -0000 1.128
--- predict.c 8 Oct 2004 20:15:44 -0000
*************** tree_estimate_probability (void)
*** 1300,1305 ****
--- 1300,1306 ----
tree_bb_level_predictions ();
+ mark_irreducible_loops (&loops_info);
predict_loops (&loops_info, false);
FOR_EACH_BB (bb)
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2004-10-09 8:15 [patch] for PR 17560 Zdenek Dvorak
2004-10-11 18:29 ` Richard Henderson
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