* [Bug tree-optimization/46728] GCC no longer generates fmadd for pow (x, 0.75)+y on powerpc
2010-11-30 18:49 [Bug tree-optimization/46728] New: GCC no longer generates fmadd for pow (x, 0.75)+y on powerpc meissner at gcc dot gnu.org
@ 2010-12-01 13:47 ` rguenth at gcc dot gnu.org
2010-12-01 15:48 ` [Bug tree-optimization/46728] [4.6 Regression] " pinskia at gcc dot gnu.org
` (19 subsequent siblings)
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From: rguenth at gcc dot gnu.org @ 2010-12-01 13:47 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46728
Richard Guenther <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2010.12.01 13:47:04
Ever Confirmed|0 |1
--- Comment #1 from Richard Guenther <rguenth at gcc dot gnu.org> 2010-12-01 13:47:04 UTC ---
Confirmed.
^ permalink raw reply [flat|nested] 22+ messages in thread
* [Bug tree-optimization/46728] [4.6 Regression] GCC no longer generates fmadd for pow (x, 0.75)+y on powerpc
2010-11-30 18:49 [Bug tree-optimization/46728] New: GCC no longer generates fmadd for pow (x, 0.75)+y on powerpc meissner at gcc dot gnu.org
2010-12-01 13:47 ` [Bug tree-optimization/46728] " rguenth at gcc dot gnu.org
@ 2010-12-01 15:48 ` pinskia at gcc dot gnu.org
2011-01-03 20:29 ` rguenth at gcc dot gnu.org
` (18 subsequent siblings)
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From: pinskia at gcc dot gnu.org @ 2010-12-01 15:48 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46728
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |4.6.0
Summary|GCC no longer generates |[4.6 Regression] GCC no
|fmadd for pow (x, 0.75)+y |longer generates fmadd for
|on powerpc |pow (x, 0.75)+y on powerpc
^ permalink raw reply [flat|nested] 22+ messages in thread
* [Bug tree-optimization/46728] [4.6 Regression] GCC no longer generates fmadd for pow (x, 0.75)+y on powerpc
2010-11-30 18:49 [Bug tree-optimization/46728] New: GCC no longer generates fmadd for pow (x, 0.75)+y on powerpc meissner at gcc dot gnu.org
2010-12-01 13:47 ` [Bug tree-optimization/46728] " rguenth at gcc dot gnu.org
2010-12-01 15:48 ` [Bug tree-optimization/46728] [4.6 Regression] " pinskia at gcc dot gnu.org
@ 2011-01-03 20:29 ` rguenth at gcc dot gnu.org
2011-02-04 18:11 ` meissner at gcc dot gnu.org
` (17 subsequent siblings)
20 siblings, 0 replies; 22+ messages in thread
From: rguenth at gcc dot gnu.org @ 2011-01-03 20:29 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46728
Richard Guenther <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Severity|enhancement |normal
^ permalink raw reply [flat|nested] 22+ messages in thread
* [Bug tree-optimization/46728] [4.6 Regression] GCC no longer generates fmadd for pow (x, 0.75)+y on powerpc
2010-11-30 18:49 [Bug tree-optimization/46728] New: GCC no longer generates fmadd for pow (x, 0.75)+y on powerpc meissner at gcc dot gnu.org
` (2 preceding siblings ...)
2011-01-03 20:29 ` rguenth at gcc dot gnu.org
@ 2011-02-04 18:11 ` meissner at gcc dot gnu.org
2011-02-08 13:49 ` [Bug tree-optimization/46728] GCC does not generate " rguenth at gcc dot gnu.org
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From: meissner at gcc dot gnu.org @ 2011-02-04 18:11 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46728
--- Comment #2 from Michael Meissner <meissner at gcc dot gnu.org> 2011-02-04 18:11:09 UTC ---
When the initial changes for bug 42694 was added that optimizes pow (x, 0.75)
into sqrt(sqrt(x))*sqrt(x) under fast math, there was a desire to move this RTL
optimization into the tree level. Ideally it should before the vectorization
of math functions and FMA (floating point multiplication and add) passes.
Here is the discussion about the changes in April 2010:
http://gcc.gnu.org/ml/gcc-patches/2010-04/msg00788.html
Presumably most of the optimizations done in expand_builtin_pow,
expand_builtin_powi and expand_builtin_pow_root in the builtins.c file should
be moved to a tree pass.
^ permalink raw reply [flat|nested] 22+ messages in thread
* [Bug tree-optimization/46728] GCC does not generate fmadd for pow (x, 0.75)+y on powerpc
2010-11-30 18:49 [Bug tree-optimization/46728] New: GCC no longer generates fmadd for pow (x, 0.75)+y on powerpc meissner at gcc dot gnu.org
` (3 preceding siblings ...)
2011-02-04 18:11 ` meissner at gcc dot gnu.org
@ 2011-02-08 13:49 ` rguenth at gcc dot gnu.org
2011-04-01 19:17 ` meissner at gcc dot gnu.org
` (15 subsequent siblings)
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From: rguenth at gcc dot gnu.org @ 2011-02-08 13:49 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46728
Richard Guenther <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |missed-optimization
Target Milestone|4.6.0 |---
Summary|[4.6 Regression] GCC no |GCC does not generate fmadd
|longer generates fmadd for |for pow (x, 0.75)+y on
|pow (x, 0.75)+y on powerpc |powerpc
Severity|normal |enhancement
--- Comment #3 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-02-08 13:44:51 UTC ---
I had patches for powi expansion I think 6 years ago but they were rejected
(fortunately I can now approve them myself). We should expose most of this
lowering to the vectorizer as it can vectorize sqrt and multiplication series
while it cannot vectorize pow or powi in general (it tries for some special
cases via the sucky pattern recognition).
Not a regression, no compiler was released with the fancy pow (x, 0.75) + y
handling.
^ permalink raw reply [flat|nested] 22+ messages in thread
* [Bug tree-optimization/46728] GCC does not generate fmadd for pow (x, 0.75)+y on powerpc
2010-11-30 18:49 [Bug tree-optimization/46728] New: GCC no longer generates fmadd for pow (x, 0.75)+y on powerpc meissner at gcc dot gnu.org
` (4 preceding siblings ...)
2011-02-08 13:49 ` [Bug tree-optimization/46728] GCC does not generate " rguenth at gcc dot gnu.org
@ 2011-04-01 19:17 ` meissner at gcc dot gnu.org
2011-05-24 18:23 ` wschmidt at gcc dot gnu.org
` (14 subsequent siblings)
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From: meissner at gcc dot gnu.org @ 2011-04-01 19:17 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46728
Michael Meissner <meissner at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
Version|4.6.0 |4.7.0
AssignedTo|unassigned at gcc dot |wschmidt at gcc dot gnu.org
|gnu.org |
^ permalink raw reply [flat|nested] 22+ messages in thread
* [Bug tree-optimization/46728] GCC does not generate fmadd for pow (x, 0.75)+y on powerpc
2010-11-30 18:49 [Bug tree-optimization/46728] New: GCC no longer generates fmadd for pow (x, 0.75)+y on powerpc meissner at gcc dot gnu.org
` (5 preceding siblings ...)
2011-04-01 19:17 ` meissner at gcc dot gnu.org
@ 2011-05-24 18:23 ` wschmidt at gcc dot gnu.org
2011-05-24 18:35 ` wschmidt at gcc dot gnu.org
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From: wschmidt at gcc dot gnu.org @ 2011-05-24 18:23 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46728
--- Comment #4 from William J. Schmidt <wschmidt at gcc dot gnu.org> 2011-05-24 18:02:27 UTC ---
Author: wschmidt
Date: Tue May 24 18:02:22 2011
New Revision: 174129
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=174129
Log:
2011-05-24 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
PR tree-optimization/46728
* tree-ssa-math-opts.c (powi_table): New.
(powi_lookup_cost): New.
(powi_cost): New.
(powi_as_mults_1): New.
(powi_as_mults): New.
(gimple_expand_builtin_powi): New.
(execute_cse_sincos): Add switch case for BUILT_IN_POWI.
(gate_cse_sincos): Remove sincos/cexp restriction.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/tree-ssa-math-opts.c
^ permalink raw reply [flat|nested] 22+ messages in thread
* [Bug tree-optimization/46728] GCC does not generate fmadd for pow (x, 0.75)+y on powerpc
2010-11-30 18:49 [Bug tree-optimization/46728] New: GCC no longer generates fmadd for pow (x, 0.75)+y on powerpc meissner at gcc dot gnu.org
` (6 preceding siblings ...)
2011-05-24 18:23 ` wschmidt at gcc dot gnu.org
@ 2011-05-24 18:35 ` wschmidt at gcc dot gnu.org
2011-05-25 13:51 ` wschmidt at gcc dot gnu.org
` (12 subsequent siblings)
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From: wschmidt at gcc dot gnu.org @ 2011-05-24 18:35 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46728
--- Comment #5 from William J. Schmidt <wschmidt at gcc dot gnu.org> 2011-05-24 18:06:04 UTC ---
Above is first of a series of patches. It handles converting __builtin_powi to
a sequence of multiplies in the cse_sincos gimple pass. More to come.
^ permalink raw reply [flat|nested] 22+ messages in thread
* [Bug tree-optimization/46728] GCC does not generate fmadd for pow (x, 0.75)+y on powerpc
2010-11-30 18:49 [Bug tree-optimization/46728] New: GCC no longer generates fmadd for pow (x, 0.75)+y on powerpc meissner at gcc dot gnu.org
` (7 preceding siblings ...)
2011-05-24 18:35 ` wschmidt at gcc dot gnu.org
@ 2011-05-25 13:51 ` wschmidt at gcc dot gnu.org
2011-05-25 13:53 ` wschmidt at gcc dot gnu.org
` (11 subsequent siblings)
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From: wschmidt at gcc dot gnu.org @ 2011-05-25 13:51 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46728
--- Comment #6 from William J. Schmidt <wschmidt at gcc dot gnu.org> 2011-05-25 13:35:58 UTC ---
Author: wschmidt
Date: Wed May 25 13:35:53 2011
New Revision: 174196
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=174196
Log:
2011-05-25 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
PR tree-optimization/46728
* tree-ssa-math-opts.c (gimple_expand_builtin_pow): New.
(execute_cse_sincos): Add switch case for BUILT_IN_POW.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/tree-ssa-math-opts.c
^ permalink raw reply [flat|nested] 22+ messages in thread
* [Bug tree-optimization/46728] GCC does not generate fmadd for pow (x, 0.75)+y on powerpc
2010-11-30 18:49 [Bug tree-optimization/46728] New: GCC no longer generates fmadd for pow (x, 0.75)+y on powerpc meissner at gcc dot gnu.org
` (8 preceding siblings ...)
2011-05-25 13:51 ` wschmidt at gcc dot gnu.org
@ 2011-05-25 13:53 ` wschmidt at gcc dot gnu.org
2011-05-27 19:20 ` wschmidt at gcc dot gnu.org
` (10 subsequent siblings)
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From: wschmidt at gcc dot gnu.org @ 2011-05-25 13:53 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46728
--- Comment #7 from William J. Schmidt <wschmidt at gcc dot gnu.org> 2011-05-25 13:42:14 UTC ---
Patch 2 transforms pow(x,n) to multiplies for integer n, similar to patch 1 for
powi(x,n).
^ permalink raw reply [flat|nested] 22+ messages in thread
* [Bug tree-optimization/46728] GCC does not generate fmadd for pow (x, 0.75)+y on powerpc
2010-11-30 18:49 [Bug tree-optimization/46728] New: GCC no longer generates fmadd for pow (x, 0.75)+y on powerpc meissner at gcc dot gnu.org
` (9 preceding siblings ...)
2011-05-25 13:53 ` wschmidt at gcc dot gnu.org
@ 2011-05-27 19:20 ` wschmidt at gcc dot gnu.org
2011-05-27 19:52 ` wschmidt at gcc dot gnu.org
` (9 subsequent siblings)
20 siblings, 0 replies; 22+ messages in thread
From: wschmidt at gcc dot gnu.org @ 2011-05-27 19:20 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46728
--- Comment #8 from William J. Schmidt <wschmidt at gcc dot gnu.org> 2011-05-27 19:11:22 UTC ---
Author: wschmidt
Date: Fri May 27 19:11:19 2011
New Revision: 174349
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=174349
Log:
2011-05-27 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
PR tree-optimization/46728
* tree-ssa-math-opts.c (powi_as_mults_1): Add gimple_set_location.
(powi_as_mults): Add gimple_set_location.
(build_and_insert_call): New.
(gimple_expand_builtin_pow): Add handling for pow(x,y) when y is
0.5, 0.25, 0.75, 1./3., or 1./6.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/tree-ssa-math-opts.c
^ permalink raw reply [flat|nested] 22+ messages in thread
* [Bug tree-optimization/46728] GCC does not generate fmadd for pow (x, 0.75)+y on powerpc
2010-11-30 18:49 [Bug tree-optimization/46728] New: GCC no longer generates fmadd for pow (x, 0.75)+y on powerpc meissner at gcc dot gnu.org
` (10 preceding siblings ...)
2011-05-27 19:20 ` wschmidt at gcc dot gnu.org
@ 2011-05-27 19:52 ` wschmidt at gcc dot gnu.org
2011-05-30 17:42 ` wschmidt at gcc dot gnu.org
` (8 subsequent siblings)
20 siblings, 0 replies; 22+ messages in thread
From: wschmidt at gcc dot gnu.org @ 2011-05-27 19:52 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46728
--- Comment #9 from William J. Schmidt <wschmidt at gcc dot gnu.org> 2011-05-27 19:39:11 UTC ---
Author: wschmidt
Date: Fri May 27 19:39:07 2011
New Revision: 174358
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=174358
Log:
2011-05-27 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
PR tree-optimization/46728
* gcc.target/powerpc/pr46728-1.c: New.
* gcc.target/powerpc/pr46728-2.c: New.
* gcc.target/powerpc/pr46728-3.c: New.
* gcc.target/powerpc/pr46728-4.c: New.
* gcc.target/powerpc/pr46728-5.c: New.
* gcc.dg/pr46728-6.c: New.
* gcc.target/powerpc/pr46728-7.c: New.
* gcc.target/powerpc/pr46728-8.c: New.
* gcc.dg/pr46728-9.c: New.
* gcc.target/powerpc/pr46728-10.c: New.
* gcc.target/powerpc/pr46728-11.c: New.
* gcc.dg/pr46728-12.c: New.
* gcc.target/powerpc/pr46728-13.c: New.
* gcc.target/powerpc/pr46728-14.c: New.
* gcc.target/powerpc/pr46728-15.c: New.
* gcc.target/powerpc/pr46728-16.c: New.
Added:
trunk/gcc/testsuite/gcc.dg/pr46728-12.c
trunk/gcc/testsuite/gcc.dg/pr46728-6.c
trunk/gcc/testsuite/gcc.dg/pr46728-9.c
trunk/gcc/testsuite/gcc.target/powerpc/pr46728-1.c
trunk/gcc/testsuite/gcc.target/powerpc/pr46728-10.c
trunk/gcc/testsuite/gcc.target/powerpc/pr46728-11.c
trunk/gcc/testsuite/gcc.target/powerpc/pr46728-13.c
trunk/gcc/testsuite/gcc.target/powerpc/pr46728-14.c
trunk/gcc/testsuite/gcc.target/powerpc/pr46728-15.c
trunk/gcc/testsuite/gcc.target/powerpc/pr46728-16.c
trunk/gcc/testsuite/gcc.target/powerpc/pr46728-2.c
trunk/gcc/testsuite/gcc.target/powerpc/pr46728-3.c
trunk/gcc/testsuite/gcc.target/powerpc/pr46728-4.c
trunk/gcc/testsuite/gcc.target/powerpc/pr46728-5.c
trunk/gcc/testsuite/gcc.target/powerpc/pr46728-7.c
trunk/gcc/testsuite/gcc.target/powerpc/pr46728-8.c
Modified:
trunk/gcc/testsuite/ChangeLog
^ permalink raw reply [flat|nested] 22+ messages in thread
* [Bug tree-optimization/46728] GCC does not generate fmadd for pow (x, 0.75)+y on powerpc
2010-11-30 18:49 [Bug tree-optimization/46728] New: GCC no longer generates fmadd for pow (x, 0.75)+y on powerpc meissner at gcc dot gnu.org
` (11 preceding siblings ...)
2011-05-27 19:52 ` wschmidt at gcc dot gnu.org
@ 2011-05-30 17:42 ` wschmidt at gcc dot gnu.org
2011-06-06 14:28 ` wschmidt at gcc dot gnu.org
` (7 subsequent siblings)
20 siblings, 0 replies; 22+ messages in thread
From: wschmidt at gcc dot gnu.org @ 2011-05-30 17:42 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46728
--- Comment #10 from William J. Schmidt <wschmidt at gcc dot gnu.org> 2011-05-30 17:12:58 UTC ---
Author: wschmidt
Date: Mon May 30 17:12:53 2011
New Revision: 174446
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=174446
Log:
2011-05-30 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
PR tree-optimization/46728
* tree-ssa-math-opts.c (build_and_insert_call): Reorder parms.
(build_and_insert_binop): New.
(gimple_expand_builtin_pow): Reorder args for
build_and_insert_call; use build_and_insert_binop; add more
optimizations for fractional exponents.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/tree-ssa-math-opts.c
^ permalink raw reply [flat|nested] 22+ messages in thread
* [Bug tree-optimization/46728] GCC does not generate fmadd for pow (x, 0.75)+y on powerpc
2010-11-30 18:49 [Bug tree-optimization/46728] New: GCC no longer generates fmadd for pow (x, 0.75)+y on powerpc meissner at gcc dot gnu.org
` (12 preceding siblings ...)
2011-05-30 17:42 ` wschmidt at gcc dot gnu.org
@ 2011-06-06 14:28 ` wschmidt at gcc dot gnu.org
2011-06-07 15:13 ` wschmidt at gcc dot gnu.org
` (6 subsequent siblings)
20 siblings, 0 replies; 22+ messages in thread
From: wschmidt at gcc dot gnu.org @ 2011-06-06 14:28 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46728
--- Comment #11 from William J. Schmidt <wschmidt at gcc dot gnu.org> 2011-06-06 14:27:44 UTC ---
Author: wschmidt
Date: Mon Jun 6 14:27:41 2011
New Revision: 174701
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=174701
Log:
2011-06-06 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
PR tree-optimization/46728
* builtins.c (powi_table): Remove.
(powi_lookup_cost): Remove.
(powi_cost): Remove.
(expand_powi_1): Remove.
(expand_powi): Remove.
(expand_builtin_pow_root): Remove.
(expand_builtin_pow): Remove.
(expand_builtin_powi): Eliminate handling of constant exponent.
(expand_builtin): Use expand_builtin_mathfn_2 for BUILT_IN_POW.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/builtins.c
^ permalink raw reply [flat|nested] 22+ messages in thread
* [Bug tree-optimization/46728] GCC does not generate fmadd for pow (x, 0.75)+y on powerpc
2010-11-30 18:49 [Bug tree-optimization/46728] New: GCC no longer generates fmadd for pow (x, 0.75)+y on powerpc meissner at gcc dot gnu.org
` (13 preceding siblings ...)
2011-06-06 14:28 ` wschmidt at gcc dot gnu.org
@ 2011-06-07 15:13 ` wschmidt at gcc dot gnu.org
2011-06-07 15:24 ` wschmidt at gcc dot gnu.org
` (5 subsequent siblings)
20 siblings, 0 replies; 22+ messages in thread
From: wschmidt at gcc dot gnu.org @ 2011-06-07 15:13 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46728
--- Comment #12 from William J. Schmidt <wschmidt at gcc dot gnu.org> 2011-06-07 15:12:07 UTC ---
Author: wschmidt
Date: Tue Jun 7 15:12:04 2011
New Revision: 174752
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=174752
Log:
2011-06-07 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
PR tree-optimization/46728
* tree-ssa-math-opts.c (gimple_expand_builtin_pow): Change FIXME
to use gimple_val_nonnegative_real_p.
* gimple-fold.c (gimple_val_nonnegative_real_p): New function.
* gimple.h (gimple_val_nonnegative_real_p): New declaration.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/gimple-fold.c
trunk/gcc/gimple.h
trunk/gcc/tree-ssa-math-opts.c
^ permalink raw reply [flat|nested] 22+ messages in thread
* [Bug tree-optimization/46728] GCC does not generate fmadd for pow (x, 0.75)+y on powerpc
2010-11-30 18:49 [Bug tree-optimization/46728] New: GCC no longer generates fmadd for pow (x, 0.75)+y on powerpc meissner at gcc dot gnu.org
` (14 preceding siblings ...)
2011-06-07 15:13 ` wschmidt at gcc dot gnu.org
@ 2011-06-07 15:24 ` wschmidt at gcc dot gnu.org
2011-11-11 19:25 ` wschmidt at gcc dot gnu.org
` (4 subsequent siblings)
20 siblings, 0 replies; 22+ messages in thread
From: wschmidt at gcc dot gnu.org @ 2011-06-07 15:24 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46728
--- Comment #13 from William J. Schmidt <wschmidt at gcc dot gnu.org> 2011-06-07 15:24:29 UTC ---
Work is complete on the planned changes. Note there is an open regression
PR49302 that has yet to be addressed.
^ permalink raw reply [flat|nested] 22+ messages in thread
* [Bug tree-optimization/46728] GCC does not generate fmadd for pow (x, 0.75)+y on powerpc
2010-11-30 18:49 [Bug tree-optimization/46728] New: GCC no longer generates fmadd for pow (x, 0.75)+y on powerpc meissner at gcc dot gnu.org
` (15 preceding siblings ...)
2011-06-07 15:24 ` wschmidt at gcc dot gnu.org
@ 2011-11-11 19:25 ` wschmidt at gcc dot gnu.org
2012-03-12 2:27 ` fang at csl dot cornell.edu
` (3 subsequent siblings)
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From: wschmidt at gcc dot gnu.org @ 2011-11-11 19:25 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46728
William J. Schmidt <wschmidt at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
--- Comment #14 from William J. Schmidt <wschmidt at gcc dot gnu.org> 2011-11-11 17:11:18 UTC ---
Fixed.
^ permalink raw reply [flat|nested] 22+ messages in thread
* [Bug tree-optimization/46728] GCC does not generate fmadd for pow (x, 0.75)+y on powerpc
2010-11-30 18:49 [Bug tree-optimization/46728] New: GCC no longer generates fmadd for pow (x, 0.75)+y on powerpc meissner at gcc dot gnu.org
` (16 preceding siblings ...)
2011-11-11 19:25 ` wschmidt at gcc dot gnu.org
@ 2012-03-12 2:27 ` fang at csl dot cornell.edu
2012-03-12 12:37 ` wschmidt at gcc dot gnu.org
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From: fang at csl dot cornell.edu @ 2012-03-12 2:27 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46728
--- Comment #15 from David Fang <fang at csl dot cornell.edu> 2012-03-12 02:26:40 UTC ---
I see this test failing on powerpc-apple-darwin8 (32b G4, ppc7400):
http://gcc.gnu.org/ml/gcc-testresults/2012-03/msg01296.html
Is this specific to 64b, or should it also work for 32b ppc?
^ permalink raw reply [flat|nested] 22+ messages in thread
* [Bug tree-optimization/46728] GCC does not generate fmadd for pow (x, 0.75)+y on powerpc
2010-11-30 18:49 [Bug tree-optimization/46728] New: GCC no longer generates fmadd for pow (x, 0.75)+y on powerpc meissner at gcc dot gnu.org
` (17 preceding siblings ...)
2012-03-12 2:27 ` fang at csl dot cornell.edu
@ 2012-03-12 12:37 ` wschmidt at gcc dot gnu.org
2012-03-12 18:28 ` wschmidt at gcc dot gnu.org
2012-03-12 19:46 ` wschmidt at gcc dot gnu.org
20 siblings, 0 replies; 22+ messages in thread
From: wschmidt at gcc dot gnu.org @ 2012-03-12 12:37 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46728
--- Comment #16 from William J. Schmidt <wschmidt at gcc dot gnu.org> 2012-03-12 12:37:11 UTC ---
(In reply to comment #15)
> I see this test failing on powerpc-apple-darwin8 (32b G4, ppc7400):
> http://gcc.gnu.org/ml/gcc-testresults/2012-03/msg01296.html
> Is this specific to 64b, or should it also work for 32b ppc?
It looks like these tests should be skipped for darwin. The last three
failures are due to a lack of __builtin_cbrt for that target. The execution
failures are due to -fpowerpc-gpopt which apparently generates an illegal
instruction for that target. I'll modify these tests to add skips for
powerpc*-*-darwin*.
^ permalink raw reply [flat|nested] 22+ messages in thread
* [Bug tree-optimization/46728] GCC does not generate fmadd for pow (x, 0.75)+y on powerpc
2010-11-30 18:49 [Bug tree-optimization/46728] New: GCC no longer generates fmadd for pow (x, 0.75)+y on powerpc meissner at gcc dot gnu.org
` (18 preceding siblings ...)
2012-03-12 12:37 ` wschmidt at gcc dot gnu.org
@ 2012-03-12 18:28 ` wschmidt at gcc dot gnu.org
2012-03-12 19:46 ` wschmidt at gcc dot gnu.org
20 siblings, 0 replies; 22+ messages in thread
From: wschmidt at gcc dot gnu.org @ 2012-03-12 18:28 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46728
--- Comment #17 from William J. Schmidt <wschmidt at gcc dot gnu.org> 2012-03-12 18:26:52 UTC ---
Author: wschmidt
Date: Mon Mar 12 18:26:48 2012
New Revision: 185260
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=185260
Log:
2012-03-12 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
PR tree-optimization/46728
* gcc.target/powerpc/pr46728-4.c: Skip for powerpc*-*-darwin*.
* gcc.target/powerpc/pr46728-5.c: Likewise.
* gcc.target/powerpc/pr46728-8.c: Likewise.
* gcc.target/powerpc/pr46728-10.c: Likewise.
* gcc.target/powerpc/pr46728-11.c: Likewise.
* gcc.target/powerpc/pr46728-13.c: Likewise.
* gcc.target/powerpc/pr46728-14.c: Likewise.
* gcc.target/powerpc/pr46728-15.c: Likewise.
Modified:
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/gcc.target/powerpc/pr46728-10.c
trunk/gcc/testsuite/gcc.target/powerpc/pr46728-11.c
trunk/gcc/testsuite/gcc.target/powerpc/pr46728-13.c
trunk/gcc/testsuite/gcc.target/powerpc/pr46728-14.c
trunk/gcc/testsuite/gcc.target/powerpc/pr46728-15.c
trunk/gcc/testsuite/gcc.target/powerpc/pr46728-4.c
trunk/gcc/testsuite/gcc.target/powerpc/pr46728-5.c
trunk/gcc/testsuite/gcc.target/powerpc/pr46728-8.c
^ permalink raw reply [flat|nested] 22+ messages in thread
* [Bug tree-optimization/46728] GCC does not generate fmadd for pow (x, 0.75)+y on powerpc
2010-11-30 18:49 [Bug tree-optimization/46728] New: GCC no longer generates fmadd for pow (x, 0.75)+y on powerpc meissner at gcc dot gnu.org
` (19 preceding siblings ...)
2012-03-12 18:28 ` wschmidt at gcc dot gnu.org
@ 2012-03-12 19:46 ` wschmidt at gcc dot gnu.org
20 siblings, 0 replies; 22+ messages in thread
From: wschmidt at gcc dot gnu.org @ 2012-03-12 19:46 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46728
--- Comment #18 from William J. Schmidt <wschmidt at gcc dot gnu.org> 2012-03-12 19:45:49 UTC ---
Author: wschmidt
Date: Mon Mar 12 19:45:43 2012
New Revision: 185265
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=185265
Log:
2012-03-12 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
PR tree-optimization/46728
* gcc.target/powerpc/pr46728-4.c: Use preferred syntax.
* gcc.target/powerpc/pr46728-5.c: Likewise.
* gcc.target/powerpc/pr46728-8.c: Likewise.
* gcc.target/powerpc/pr46728-10.c: Likewise.
* gcc.target/powerpc/pr46728-11.c: Likewise.
* gcc.target/powerpc/pr46728-13.c: Likewise.
* gcc.target/powerpc/pr46728-14.c: Likewise.
* gcc.target/powerpc/pr46728-15.c: Likewise.
Modified:
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/gcc.target/powerpc/pr46728-10.c
trunk/gcc/testsuite/gcc.target/powerpc/pr46728-11.c
trunk/gcc/testsuite/gcc.target/powerpc/pr46728-13.c
trunk/gcc/testsuite/gcc.target/powerpc/pr46728-14.c
trunk/gcc/testsuite/gcc.target/powerpc/pr46728-15.c
trunk/gcc/testsuite/gcc.target/powerpc/pr46728-4.c
trunk/gcc/testsuite/gcc.target/powerpc/pr46728-5.c
trunk/gcc/testsuite/gcc.target/powerpc/pr46728-8.c
^ permalink raw reply [flat|nested] 22+ messages in thread