* [patch] fix loop updating in jump threading
@ 2007-07-25 12:11 Zdenek Dvorak
2007-07-25 16:19 ` Diego Novillo
0 siblings, 1 reply; 2+ messages in thread
From: Zdenek Dvorak @ 2007-07-25 12:11 UTC (permalink / raw)
To: gcc-patches
Hello,
to keep track of loop exits in jump threading, we need to scan the newly
created edge in create_edge_and_update_destination_phis. Bootstrapped &
regtested on i686.
Zdenek
* tree-ssa-threadupdate.c (create_edge_and_update_destination_phis):
Scan the new edge for loop exit info.
Index: tree-ssa-threadupdate.c
===================================================================
*** tree-ssa-threadupdate.c (revision 126869)
--- tree-ssa-threadupdate.c (working copy)
*************** create_edge_and_update_destination_phis
*** 313,318 ****
--- 313,319 ----
edge e = make_edge (rd->dup_block, rd->outgoing_edge->dest, EDGE_FALLTHRU);
tree phi;
+ rescan_loop_exit (e, true, false);
e->probability = REG_BR_PROB_BASE;
e->count = rd->dup_block->count;
e->aux = rd->outgoing_edge->aux;
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [patch] fix loop updating in jump threading
2007-07-25 12:11 [patch] fix loop updating in jump threading Zdenek Dvorak
@ 2007-07-25 16:19 ` Diego Novillo
0 siblings, 0 replies; 2+ messages in thread
From: Diego Novillo @ 2007-07-25 16:19 UTC (permalink / raw)
To: Zdenek Dvorak; +Cc: gcc-patches
On 7/25/07 7:58 AM, Zdenek Dvorak wrote:
> * tree-ssa-threadupdate.c (create_edge_and_update_destination_phis):
> Scan the new edge for loop exit info.
OK.
^ permalink raw reply [flat|nested] 2+ messages in thread
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2007-07-25 12:11 [patch] fix loop updating in jump threading Zdenek Dvorak
2007-07-25 16:19 ` Diego Novillo
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