[Bug target/78007] Important loop from 482.sphinx3 is not vectorized
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78007 Richard Biener changed: What|Removed |Added Status|ASSIGNED|RESOLVED Resolution|--- |FIXED --- Comment #7 from Richard Biener --- Fixed.
[Bug target/78007] Important loop from 482.sphinx3 is not vectorized
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78007
--- Comment #6 from Richard Biener ---
Author: rguenth
Date: Wed Nov 9 08:19:05 2016
New Revision: 241992
URL: https://gcc.gnu.org/viewcvs?rev=241992&root=gcc&view=rev
Log:
2016-11-09 Richard Biener
PR tree-optimization/78007
* tree-vect-stmts.c (vectorizable_bswap): New function.
(vectorizable_call): Call vectorizable_bswap for
BUILT_IN_BSWAP{16,32,64} if arguments are not promoted.
* gcc.dg/vect/vect-bswap32.c: Adjust.
* gcc.dg/vect/vect-bswap64.c: Likewise.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/gcc.dg/vect/vect-bswap32.c
trunk/gcc/testsuite/gcc.dg/vect/vect-bswap64.c
trunk/gcc/tree-vect-stmts.c
[Bug target/78007] Important loop from 482.sphinx3 is not vectorized
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78007 Richard Biener changed: What|Removed |Added Attachment #39827|0 |1 is obsolete|| --- Comment #5 from Richard Biener --- Created attachment 39990 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=39990&action=edit patch I am testing
[Bug target/78007] Important loop from 482.sphinx3 is not vectorized
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78007 Richard Biener changed: What|Removed |Added Status|NEW |ASSIGNED Assignee|unassigned at gcc dot gnu.org |rguenth at gcc dot gnu.org
[Bug target/78007] Important loop from 482.sphinx3 is not vectorized
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78007 --- Comment #4 from Richard Biener --- Probably handling should be moved after targetm.vectorize.builtin_vectorized_function handling to allow arms builtin-bswap vectorization via vrev to apply (not sure if its permutation handling selects vrev for a bswap permutation).
[Bug target/78007] Important loop from 482.sphinx3 is not vectorized
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78007
--- Comment #3 from Richard Biener ---
Created attachment 39827
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=39827&action=edit
untested patch
Mostly untested prototype. For -mavx2 we get from the testcase innermost loop
.L6:
vmovdqa (%r9,%rdx), %ymm0
addl$1, %r8d
vperm2i128 $0, %ymm0, %ymm0, %ymm0
vpshufb %ymm1, %ymm0, %ymm0
vmovdqa %ymm0, (%r9,%rdx)
addq$32, %rdx
cmpl%r11d, %r8d
jb .L6
with -msse4:
.L6:
movdqa (%rax,%rdx), %xmm0
addl$1, %r8d
pshufb %xmm1, %xmm0
movaps %xmm0, (%rax,%rdx)
addq$16, %rdx
cmpl%r10d, %r8d
jb .L6
not sure if I got the bswap permutation vector constant correct either ;)
(quick hack)
vect_load_dst_8.13_63 = MEM[(u32 *)vectp_b.11_61];
load_dst_8 = *_3;
_64 = VIEW_CONVERT_EXPR(vect_load_dst_8.13_63);
_65 = VEC_PERM_EXPR <_64, _64, { 3, 2, 1, 0, 3, 2, 1, 0, 3, 2, 1, 0, 3, 2, 1,
0 }>;
_66 = VIEW_CONVERT_EXPR(_65);
_13 = __builtin_bswap32 (load_dst_8);
MEM[(u32 *)vectp_b.14_69] = _66;
[Bug target/78007] Important loop from 482.sphinx3 is not vectorized
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78007 Richard Biener changed: What|Removed |Added Keywords||missed-optimization Status|UNCONFIRMED |NEW Last reconfirmed||2016-10-17 Blocks||53947 Ever confirmed|0 |1 --- Comment #2 from Richard Biener --- Should be relatively easy to handle with a VIEW_CONVERT, VEC_PERM_EXPR, VIEW_CONVERT sequence. Referenced Bugs: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53947 [Bug 53947] [meta-bug] vectorizer missed-optimizations
[Bug target/78007] Important loop from 482.sphinx3 is not vectorized
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78007 --- Comment #1 from Yuri Rumyantsev --- Created attachment 39821 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=39821&action=edit test-case to reproduce It is sufficient to compiler it with -Ofast option on x86 platform.
