https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68404
Markus Trippelsdorf <trippels at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |wrong-code
Status|UNCONFIRMED |NEW
Last reconfirmed| |2015-12-15
Ever confirmed|0 |1
--- Comment #1 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
Started with r230020:
commit 77d241ed443a311c06f1c9f37071ab5d7cc5d37d
Author: rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Mon Nov 9 12:59:17 2015 +0000
2015-11-09 Richard Biener <rguent...@suse.de>
PR tree-optimization/56118
* tree-vectorizer.h (vect_find_last_scalar_stmt_in_slp): Declare.
* tree-vect-slp.c (vect_find_last_scalar_stmt_in_slp): Export.
* tree-vect-data-refs.c (vect_slp_analyze_node_dependences): New
function.
(vect_slp_analyze_data_ref_dependences): Instead of computing
all dependences of the region DRs just analyze the code motions
SLP vectorization will perform. Remove SLP instances that
cannot have their store/load motions applied.
(vect_analyze_data_refs): Allow DRs without a vectype
in BB vectorization.
* gcc.dg/vect/no-tree-sra-bb-slp-pr50730.c: Adjust.
To reproduce run:
trippels@gcc2-power8 gcc % ../gcc/configure --enable-checking=release
--with-cpu=power8 --disable-libstdcxx-pch --disable-libvtv --disable-libitm
--disable-libcilkrts --disable-libssp --disable-libgomp --disable-werror
--enable-multilib --enable-languages=c,c++ --with-build-config="bootstrap-lto
bootstrap-O3"
trippels@gcc2-power8 gcc % make -j60 BOOT_CFLAGS="-mcpu=power8 -O3 -pipe"
STAGE1_CFLAGS="-mcpu=power8 -O3 -pipe" CFLAGS_FOR_TARGET="-mcpu=power8 -O3
-pipe" CXXFLAGS_FOR_TARGET="-mcpu=power8 -O3 -pipe" profiledbootstrap
