* [Bug middle-end/57370] [4.9 Regression] compile time hog in reassoc
2013-05-22 14:18 [Bug middle-end/57370] New: [4.9 Regression] compile time hog in reassoc Joost.VandeVondele at mat dot ethz.ch
@ 2013-05-22 14:18 ` Joost.VandeVondele at mat dot ethz.ch
2013-05-22 14:19 ` Joost.VandeVondele at mat dot ethz.ch
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From: Joost.VandeVondele at mat dot ethz.ch @ 2013-05-22 14:18 UTC (permalink / raw)
To: gcc-bugs
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Joost VandeVondele <Joost.VandeVondele at mat dot ethz.ch> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |Joost.VandeVondele at mat dot ethz
| |.ch
--- Comment #1 from Joost VandeVondele <Joost.VandeVondele at mat dot ethz.ch> ---
Created attachment 30162
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=30162&action=edit
testcase
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* [Bug middle-end/57370] [4.9 Regression] compile time hog in reassoc
2013-05-22 14:18 [Bug middle-end/57370] New: [4.9 Regression] compile time hog in reassoc Joost.VandeVondele at mat dot ethz.ch
2013-05-22 14:18 ` [Bug middle-end/57370] " Joost.VandeVondele at mat dot ethz.ch
@ 2013-05-22 14:19 ` Joost.VandeVondele at mat dot ethz.ch
2013-05-22 14:28 ` rguenth at gcc dot gnu.org
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To: gcc-bugs
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Joost VandeVondele <Joost.VandeVondele at mat dot ethz.ch> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |eraman at google dot com
--- Comment #2 from Joost VandeVondele <Joost.VandeVondele at mat dot ethz.ch> ---
I assume it is caused by
http://gcc.gnu.org/viewcvs/gcc?view=revision&revision=199048
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug middle-end/57370] [4.9 Regression] compile time hog in reassoc
2013-05-22 14:18 [Bug middle-end/57370] New: [4.9 Regression] compile time hog in reassoc Joost.VandeVondele at mat dot ethz.ch
2013-05-22 14:18 ` [Bug middle-end/57370] " Joost.VandeVondele at mat dot ethz.ch
2013-05-22 14:19 ` Joost.VandeVondele at mat dot ethz.ch
@ 2013-05-22 14:28 ` rguenth at gcc dot gnu.org
2013-05-22 14:32 ` Joost.VandeVondele at mat dot ethz.ch
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From: rguenth at gcc dot gnu.org @ 2013-05-22 14:28 UTC (permalink / raw)
To: gcc-bugs
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Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |4.9.0
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug middle-end/57370] [4.9 Regression] compile time hog in reassoc
2013-05-22 14:18 [Bug middle-end/57370] New: [4.9 Regression] compile time hog in reassoc Joost.VandeVondele at mat dot ethz.ch
` (2 preceding siblings ...)
2013-05-22 14:28 ` rguenth at gcc dot gnu.org
@ 2013-05-22 14:32 ` Joost.VandeVondele at mat dot ethz.ch
2013-05-23 6:14 ` Joost.VandeVondele at mat dot ethz.ch
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From: Joost.VandeVondele at mat dot ethz.ch @ 2013-05-22 14:32 UTC (permalink / raw)
To: gcc-bugs
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--- Comment #3 from Joost VandeVondele <Joost.VandeVondele at mat dot ethz.ch> ---
I actually suspect the compilation is in an infinite loop. Still running after
15min.
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* [Bug middle-end/57370] [4.9 Regression] compile time hog in reassoc
2013-05-22 14:18 [Bug middle-end/57370] New: [4.9 Regression] compile time hog in reassoc Joost.VandeVondele at mat dot ethz.ch
` (3 preceding siblings ...)
2013-05-22 14:32 ` Joost.VandeVondele at mat dot ethz.ch
@ 2013-05-23 6:14 ` Joost.VandeVondele at mat dot ethz.ch
2013-05-24 6:36 ` [Bug middle-end/57370] [4.9 Regression] compiler hangs " Joost.VandeVondele at mat dot ethz.ch
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From: Joost.VandeVondele at mat dot ethz.ch @ 2013-05-23 6:14 UTC (permalink / raw)
To: gcc-bugs
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--- Comment #4 from Joost VandeVondele <Joost.VandeVondele at mat dot ethz.ch> ---
I killed the compilation after 15h...
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* [Bug middle-end/57370] [4.9 Regression] compiler hangs in reassoc
2013-05-22 14:18 [Bug middle-end/57370] New: [4.9 Regression] compile time hog in reassoc Joost.VandeVondele at mat dot ethz.ch
` (4 preceding siblings ...)
2013-05-23 6:14 ` Joost.VandeVondele at mat dot ethz.ch
@ 2013-05-24 6:36 ` Joost.VandeVondele at mat dot ethz.ch
2013-06-05 11:19 ` Joost.VandeVondele at mat dot ethz.ch
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From: Joost.VandeVondele at mat dot ethz.ch @ 2013-05-24 6:36 UTC (permalink / raw)
To: gcc-bugs
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Joost VandeVondele <Joost.VandeVondele at mat dot ethz.ch> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|[4.9 Regression] compile |[4.9 Regression] compiler
|time hog in reassoc |hangs in reassoc
--- Comment #5 from Joost VandeVondele <Joost.VandeVondele at mat dot ethz.ch> ---
This is actually hanging and not just taking a long time.
I've also create PR57393 which is an ICE that happened during an attempt to
reduce the testcase of this PR. This might or might not be related.
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* [Bug middle-end/57370] [4.9 Regression] compiler hangs in reassoc
2013-05-22 14:18 [Bug middle-end/57370] New: [4.9 Regression] compile time hog in reassoc Joost.VandeVondele at mat dot ethz.ch
` (5 preceding siblings ...)
2013-05-24 6:36 ` [Bug middle-end/57370] [4.9 Regression] compiler hangs " Joost.VandeVondele at mat dot ethz.ch
@ 2013-06-05 11:19 ` Joost.VandeVondele at mat dot ethz.ch
2013-06-13 6:04 ` Joost.VandeVondele at mat dot ethz.ch
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From: Joost.VandeVondele at mat dot ethz.ch @ 2013-06-05 11:19 UTC (permalink / raw)
To: gcc-bugs
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--- Comment #6 from Joost VandeVondele <Joost.VandeVondele at mat dot ethz.ch> ---
Reduced testcase, which appears 'minimal' to trigger a hanging compilation at
gfortran -c -O2 -ffast-math bug.f90
> cat bug.f90
SUBROUTINE xb88_lr_adiabatic_lda_calc(e_ndrho_ndrho_ndrho, &
grad_deriv,npoints, sx)
IMPLICIT REAL*8 (t)
INTEGER, PARAMETER :: dp=8
REAL(kind=dp), DIMENSION(1:npoints) :: e_ndrho_ndrho_ndrho, &
e_ndrho_ndrho_rho
DO ii=1,npoints
IF( grad_deriv >= 2 .OR. grad_deriv == -2 ) THEN
t1425 = t233 * t557
t1429 = beta * t225
t1622 = t327 * t1621
t1626 = t327 * t1625
t1632 = t327 * t1631
t1685 = t105 * t1684
t2057 = t1636 + t8 * (t2635 + t3288)
END IF
IF( grad_deriv >= 3 .OR. grad_deriv == -3 ) THEN
t5469 = t5440 - t5443 - t5446 - t5449 - &
t5451 - t5454 - t5456 + t5459 - &
t5462 + t5466 - t5468
t5478 = 0.240e2_dp * t1616 * t973 * t645 * t1425
t5489 = 0.1600000000e2_dp * t1429 * t1658
t5531 = 0.160e2_dp * t112 * t1626
t5533 = 0.160e2_dp * t112 * t1632
t5537 = 0.160e2_dp * t112 * t1622
t5541 = t5472 - t5478 - t5523 + t5525 + &
t5531 + t5533 + t5535 + t5537 + &
t5540
t5565 = t112 * t1685
t5575 = t5545 - t5548 + t5551 + t5553 - &
t5558 + t5560 - t5562 + t5564 - &
0.80e1_dp * t5565 + t5568 + t5572 + &
t5574
t5611 = t5579 - t5585 + t5590 - t5595 + &
t5597 - t5602 + t5604 + t5607 + &
t5610
t5613 = t5469 + t5541 + t5575 + t5611
t6223 = t6189 - &
0.3333333336e0_dp * t83 * t84 * t5613 + &
t6222
t6227 = - t8 * (t5305 + t6223)
e_ndrho_ndrho_rho(ii) = e_ndrho_ndrho_rho(ii) + &
t6227 * sx
t6352 = t5440 - t5443 - t5446 - t5449 - &
t5451 - t5454 + &
0.40e1_dp * t102 * t327 * t2057 * t557 - &
t5456 + t5459 - t5462 + t5466 - &
t5468
t6363 = t5480 - t5489 + &
0.9600000000e2_dp * t1054 * t640 * t3679
t6367 = t5472 - t5474 - t5478 - t5523 + &
t5525 + t5531 + t5533 + t5535 + &
t5537 - 0.20e1_dp * t102 * t105 * t6363 + &
t5540
t6370 = t5545 - t5548 + t5551 + t5553 - &
t5558 + t5560 - t5562 + t5564 - &
0.40e1_dp * t5565 + &
t5568 + t5572 + t5574
t6373 = t5579 - t5585 + t5590 - t5595 + &
t5597 - t5602 + t5604 + t5607 + &
t5610
t6375 = t6352 + t6367 + t6370 + t6373
t6380 = - 0.3333333336e0_dp * t83 * t84 * t6375 + t5701
t6669 = -t4704 - t8 * (t6344 + t6380 + t6665)
e_ndrho_ndrho_ndrho(ii) = e_ndrho_ndrho_ndrho(ii) + &
t6669 * sx
END IF
END DO
END SUBROUTINE xb88_lr_adiabatic_lda_calc
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* [Bug middle-end/57370] [4.9 Regression] compiler hangs in reassoc
2013-05-22 14:18 [Bug middle-end/57370] New: [4.9 Regression] compile time hog in reassoc Joost.VandeVondele at mat dot ethz.ch
` (6 preceding siblings ...)
2013-06-05 11:19 ` Joost.VandeVondele at mat dot ethz.ch
@ 2013-06-13 6:04 ` Joost.VandeVondele at mat dot ethz.ch
2013-06-13 7:43 ` [Bug tree-optimization/57370] " glisse at gcc dot gnu.org
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From: Joost.VandeVondele at mat dot ethz.ch @ 2013-06-13 6:04 UTC (permalink / raw)
To: gcc-bugs
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--- Comment #7 from Joost VandeVondele <Joost.VandeVondele at mat dot ethz.ch> ---
Since the bug is still 'unconfirmed', I'm wondering if this can not be
reproduced, or if I can provide some more information (more than the small
testcase in comment #6 and the revision that caused it in comment #2) ?
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug tree-optimization/57370] [4.9 Regression] compiler hangs in reassoc
2013-05-22 14:18 [Bug middle-end/57370] New: [4.9 Regression] compile time hog in reassoc Joost.VandeVondele at mat dot ethz.ch
` (7 preceding siblings ...)
2013-06-13 6:04 ` Joost.VandeVondele at mat dot ethz.ch
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2013-08-20 18:32 ` Joost.VandeVondele at mat dot ethz.ch
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From: glisse at gcc dot gnu.org @ 2013-06-13 7:43 UTC (permalink / raw)
To: gcc-bugs
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Marc Glisse <glisse at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2013-06-13
Component|middle-end |tree-optimization
Ever confirmed|0 |1
--- Comment #8 from Marc Glisse <glisse at gcc dot gnu.org> ---
Confirmed.
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* [Bug tree-optimization/57370] [4.9 Regression] compiler hangs in reassoc
2013-05-22 14:18 [Bug middle-end/57370] New: [4.9 Regression] compile time hog in reassoc Joost.VandeVondele at mat dot ethz.ch
` (8 preceding siblings ...)
2013-06-13 7:43 ` [Bug tree-optimization/57370] " glisse at gcc dot gnu.org
@ 2013-08-20 18:32 ` Joost.VandeVondele at mat dot ethz.ch
2013-09-04 17:48 ` eraman at gcc dot gnu.org
2013-09-14 9:02 ` Joost.VandeVondele at mat dot ethz.ch
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From: Joost.VandeVondele at mat dot ethz.ch @ 2013-08-20 18:32 UTC (permalink / raw)
To: gcc-bugs
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Joost VandeVondele <Joost.VandeVondele at mat dot ethz.ch> changed:
What |Removed |Added
----------------------------------------------------------------------------
URL| |http://gcc.gnu.org/ml/gcc-p
| |atches/2013-07/msg01584.htm
| |l
--- Comment #9 from Joost VandeVondele <Joost.VandeVondele at mat dot ethz.ch> ---
fixed with the patch in :
http://gcc.gnu.org/ml/gcc-patches/2013-07/msg01584.html
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* [Bug tree-optimization/57370] [4.9 Regression] compiler hangs in reassoc
2013-05-22 14:18 [Bug middle-end/57370] New: [4.9 Regression] compile time hog in reassoc Joost.VandeVondele at mat dot ethz.ch
` (9 preceding siblings ...)
2013-08-20 18:32 ` Joost.VandeVondele at mat dot ethz.ch
@ 2013-09-04 17:48 ` eraman at gcc dot gnu.org
2013-09-14 9:02 ` Joost.VandeVondele at mat dot ethz.ch
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From: eraman at gcc dot gnu.org @ 2013-09-04 17:48 UTC (permalink / raw)
To: gcc-bugs
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--- Comment #10 from eraman at gcc dot gnu.org ---
Author: eraman
Date: Wed Sep 4 17:48:15 2013
New Revision: 202262
URL: http://gcc.gnu.org/viewcvs?rev=202262&root=gcc&view=rev
Log:
2013-09-04 Easwaran Raman <eraman@google.com>
PR middle-end/57370
PR tree-optimization/58011
* tree-ssa-reassoc.c (get_stmt_uid_with_default): New function,
(build_and_add_sum): Use it.
(appears_later_in_bb): Simplify code.
gcc/testsuite/ChangeLog:
2013-09-04 Easwaran Raman <eraman@google.com>
PR middle-end/57370
PR tree-optimization/58011
* gfortran.dg/reassoc_12.f90: New testcase.
* gcc.dg/tree-ssa/reassoc-31.c: New testcase.
Added:
trunk/gcc/testsuite/gcc.dg/tree-ssa/reassoc-31.c
trunk/gcc/testsuite/gfortran.dg/reassoc_12.f90
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-ssa-reassoc.c
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* [Bug tree-optimization/57370] [4.9 Regression] compiler hangs in reassoc
2013-05-22 14:18 [Bug middle-end/57370] New: [4.9 Regression] compile time hog in reassoc Joost.VandeVondele at mat dot ethz.ch
` (10 preceding siblings ...)
2013-09-04 17:48 ` eraman at gcc dot gnu.org
@ 2013-09-14 9:02 ` Joost.VandeVondele at mat dot ethz.ch
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From: Joost.VandeVondele at mat dot ethz.ch @ 2013-09-14 9:02 UTC (permalink / raw)
To: gcc-bugs
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Joost VandeVondele <Joost.VandeVondele at mat dot ethz.ch> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
--- Comment #11 from Joost VandeVondele <Joost.VandeVondele at mat dot ethz.ch> ---
Fixed.
Easwaran please reopen if you have a specific reason for not closing this PR
(usually developers close the PRs for which they commit patches).
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