| Message ID | DB5PR0801MB2742950F0306DB51E23F334FE7700@DB5PR0801MB2742.eurprd08.prod.outlook.com |
|---|---|
| State | New |
| Headers | show |
| Series | [1/7] Delete unused field of struct partition in loop distribution | expand |
On Thu, Oct 5, 2017 at 3:15 PM, Bin Cheng <Bin.Cheng@arm.com> wrote: > Hi, > I noticed that new_preheader basic block could be deleted if the copied > loop is added at entry in function slpeel_tree_duplicate_loop_to_edge_cfg. > This simple patch skips new_preheader during variable renaming if it is > deleted. > Bootstrap and test in patch set on x86_64 and AArch64, is it OK? Ok. Richard. > Thanks, > bin > 2017-10-04 Bin Cheng <bin.cheng@arm.com> > > * tree-vect-loop-manip.c (slpeel_tree_duplicate_loop_to_edge_cfg): Skip > renaming variables in new preheader if it's deleted.
From 9c7719402c9528b517d8408419c2e9b930708772 Mon Sep 17 00:00:00 2001 From: Bin Cheng <binche01@e108451-lin.cambridge.arm.com> Date: Fri, 22 Sep 2017 16:50:40 +0100 Subject: [PATCH 2/7] skip-new_preheader.txt --- gcc/tree-vect-loop-manip.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/gcc/tree-vect-loop-manip.c b/gcc/tree-vect-loop-manip.c index f78e4b4..2c724a2 100644 --- a/gcc/tree-vect-loop-manip.c +++ b/gcc/tree-vect-loop-manip.c @@ -496,7 +496,8 @@ slpeel_tree_duplicate_loop_to_edge_cfg (struct loop *loop, loop_preheader_edge (new_loop)->src); } - for (unsigned i = 0; i < scalar_loop->num_nodes + 1; i++) + /* Skip new preheader since it's deleted if copy loop is added at entry. */ + for (unsigned i = (at_exit ? 0 : 1); i < scalar_loop->num_nodes + 1; i++) rename_variables_in_bb (new_bbs[i], duplicate_outer_loop); if (scalar_loop != loop) -- 1.9.1