--- Comment #16 from ubizjak at gmail dot com 2007-06-29 08:53 ---
(In reply to comment #15)
Just for the record, the only remaining x86 conversion (sse 4) is vectorized
BUILT_IN_LRINT that uses cvtpd2dq. The problem here is that n_in n_out, so
we
probably need to apply narrowing
--- Comment #17 from uros at gcc dot gnu dot org 2007-06-29 10:30 ---
Subject: Bug 24659
Author: uros
Date: Fri Jun 29 10:30:06 2007
New Revision: 126111
URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=126111
Log:
PR tree-optimization/24659
* tree-vect-transform.c
--- Comment #18 from ubizjak at gmail dot com 2007-06-29 10:38 ---
Fully implemented in mainline.
(BTW: A PPC maintainer should implement missing patterns for altivec as
outlined in Comment #14.)
--
ubizjak at gmail dot com changed:
What|Removed
--- Comment #19 from dorit at il dot ibm dot com 2007-06-29 16:46 ---
testing this patch for Altivec:
Index: config/rs6000/altivec.md
===
*** config/rs6000/altivec.md(revision 126053)
--- config/rs6000/altivec.md
--- Comment #13 from uros at gcc dot gnu dot org 2007-05-17 07:31 ---
Subject: Bug 24659
Author: uros
Date: Thu May 17 06:31:05 2007
New Revision: 124784
URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=124784
Log:
PR tree-optimization/24659
* optabs.h (enum
--- Comment #14 from ubizjak at gmail dot com 2007-05-17 07:45 ---
Altivec PPC has int-float cvt insn and provides signed/unsigned vec_unpack
v8hi insn. It should be trivial to implement short-float and unsigned
short-float conversions by providing vec_unpacks_float_lo_v8hi,
--- Comment #15 from ubizjak at gmail dot com 2007-05-17 08:28 ---
Just for the record, the only remaining x86 conversion (sse 4) is vectorized
BUILT_IN_LRINT that uses cvtpd2dq. The problem here is that n_in n_out, so we
probably need to apply narrowing modifier to
--- Comment #12 from ubizjak at gmail dot com 2007-05-15 15:06 ---
Patch for several other missing conversions:
http://gcc.gnu.org/ml/gcc-patches/2007-05/msg00966.html
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24659
--- Comment #9 from uros at gcc dot gnu dot org 2007-04-22 19:45 ---
Subject: Bug 24659
Author: uros
Date: Sun Apr 22 19:45:06 2007
New Revision: 124045
URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=124045
Log:
2007-04-22 Uros Bizjak [EMAIL PROTECTED]
PR
--- Comment #10 from ubizjak at gmail dot com 2007-04-22 20:08 ---
float-double and double-float conversions are new vectorized. For a slightly
different test:
--cut here--
void test_fp (float *a, double *b)
{
int i;
for (i = 0; i 4; i++)
b[i] = (double) a[i];
}
void
--- Comment #11 from ubizjak at gmail dot com 2007-04-22 20:10 ---
(In reply to comment #10)
float-double and double-float conversions are new vectorized. For a slightly
different test:
The test is actually:
--cut here--
float a[16];
int b[16];
double c[16];
void test_fd (void)
{
--- Comment #8 from ubizjak at gmail dot com 2007-04-21 19:43 ---
Patch for double-float conversions at
http://gcc.gnu.org/ml/gcc-patches/2007-04/msg01346.html.
--
ubizjak at gmail dot com changed:
What|Removed |Added
--- Comment #7 from tehila at il dot ibm dot com 2007-01-07 08:03 ---
Right, the vectorizer currently supports conversions only between integral
types. Support for type conversions that involve also floating-point types are
in the works.
--
--- Comment #6 from ubizjak at gmail dot com 2007-01-06 17:47 ---
(In reply to comment #2)
vectorization of type conversions has recently been added to autovect-branch.
It requires modeling the respective unpack and pack optabs in the machine
description.
Hm, there is no
--- Comment #3 from stuart at apple dot com 2007-01-05 18:27 ---
Created an attachment (id=12862)
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=12862action=view)
vectorized assembly output from ICC v9.1
Generated from the indefinite loop variant of the testcase on OS X 10.4.7,
--- Comment #4 from stuart at apple dot com 2007-01-05 18:30 ---
I ran the testcase through ICC, and it unrolled the loops without vectorizing
them. However, making the loops indefinite gets us the desired, vectorized
result. Here is the modified, indefinite loop version of the
--- Comment #5 from pinskia at gcc dot gnu dot org 2007-01-05 18:39 ---
SPU has vectorizable conversion also.
--
pinskia at gcc dot gnu dot org changed:
What|Removed |Added
--- Comment #1 from pinskia at gcc dot gnu dot org 2005-11-03 16:24 ---
Confirmed.
--
pinskia at gcc dot gnu dot org changed:
What|Removed |Added
--- Comment #2 from dorit at il dot ibm dot com 2005-11-03 17:11 ---
vectorization of type conversions has recently been added to autovect-branch.
It requires modeling the respective unpack and pack optabs in the machine
description.
--
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