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* [Bug tree-optimization/18316] Missed IV optimization
[not found] <bug-18316-280@http.gcc.gnu.org/bugzilla/>
@ 2007-12-17 8:14 ` steven at gcc dot gnu dot org
2008-09-14 4:03 ` pinskia at gcc dot gnu dot org
2010-02-12 21:46 ` steven at gcc dot gnu dot org
2 siblings, 0 replies; 17+ messages in thread
From: steven at gcc dot gnu dot org @ 2007-12-17 8:14 UTC (permalink / raw)
To: gcc-bugs
------- Comment #12 from steven at gcc dot gnu dot org 2007-12-17 08:14 -------
Andrew, could you compare the two functions for ppc with a recent SVN revision,
please?
--
steven at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |pinskia at gcc dot gnu dot
| |org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18316
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug tree-optimization/18316] Missed IV optimization
[not found] <bug-18316-280@http.gcc.gnu.org/bugzilla/>
2007-12-17 8:14 ` [Bug tree-optimization/18316] Missed IV optimization steven at gcc dot gnu dot org
@ 2008-09-14 4:03 ` pinskia at gcc dot gnu dot org
2010-02-12 21:46 ` steven at gcc dot gnu dot org
2 siblings, 0 replies; 17+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2008-09-14 4:03 UTC (permalink / raw)
To: gcc-bugs
------- Comment #13 from pinskia at gcc dot gnu dot org 2008-09-14 04:02 -------
Still the extra mr is still there. In fact for PPC64, it is even worse as
there are two extra instructions:
.L2:
lwa 11,0(7)
extsw 9,0
sldi 11,11,2
add 0,0,10
stwx 6,3,11
lwz 11,0(8)
rldicl 0,0,0,32
cmpw 7,11,9
bgt 7,.L2
vs:
.L7:
lwa 9,0(7)
add 0,0,11
sldi 9,9,2
extsw 0,0
stwx 10,3,9
lwz 9,0(8)
cmpw 7,9,0
bgt 7,.L7
blr
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18316
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug tree-optimization/18316] Missed IV optimization
[not found] <bug-18316-280@http.gcc.gnu.org/bugzilla/>
2007-12-17 8:14 ` [Bug tree-optimization/18316] Missed IV optimization steven at gcc dot gnu dot org
2008-09-14 4:03 ` pinskia at gcc dot gnu dot org
@ 2010-02-12 21:46 ` steven at gcc dot gnu dot org
2 siblings, 0 replies; 17+ messages in thread
From: steven at gcc dot gnu dot org @ 2010-02-12 21:46 UTC (permalink / raw)
To: gcc-bugs
------- Comment #14 from steven at gcc dot gnu dot org 2010-02-12 21:46 -------
On x86_64 the two functions still give different code:
;; Function strength_test2 (strength_test2)
strength_test2 (int * data)
{
unsigned int ivtmp.12;
int * pretmp.9;
int * pretmp.7;
int k;
int D.2743;
int D.2741;
int * D.2740;
long unsigned int D.2739;
long unsigned int D.2738;
int D.2737;
<bb 2>:
k_3 = *data_2(D);
pretmp.7_24 = data_2(D) + 8;
pretmp.9_26 = data_2(D) + 4;
ivtmp.12_25 = (unsigned int) k_3;
<bb 3>:
# ivtmp.12_5 = PHI <ivtmp.12_25(2), ivtmp.12_12(3)>
D.2737_6 = *pretmp.7_24;
D.2738_7 = (long unsigned int) D.2737_6;
D.2739_8 = D.2738_7 * 4;
D.2740_9 = data_2(D) + D.2739_8;
*D.2740_9 = 2;
D.2741_28 = (int) ivtmp.12_5;
D.2743_13 = *pretmp.9_26;
ivtmp.12_12 = ivtmp.12_5 + ivtmp.12_25;
if (D.2743_13 > D.2741_28)
goto <bb 3>;
else
goto <bb 4>;
<bb 4>:
return;
}
;; Function strength_result2 (strength_result2)
strength_result2 (int * data)
{
unsigned int D.2772;
unsigned int D.2773;
unsigned int D.2774;
int * pretmp.21;
int i;
int k;
int D.2735;
int * D.2733;
long unsigned int D.2732;
long unsigned int D.2731;
int D.2730;
<bb 2>:
k_3 = *data_2(D);
pretmp.21_22 = data_2(D) + 8;
pretmp.21_23 = data_2(D) + 4;
<bb 3>:
# i_1 = PHI <0(2), i_25(3)>
D.2730_6 = *pretmp.21_22;
D.2731_7 = (long unsigned int) D.2730_6;
D.2732_8 = D.2731_7 * 4;
D.2733_9 = data_2(D) + D.2732_8;
*D.2733_9 = 2;
D.2772_5 = (unsigned int) i_1;
D.2773_11 = (unsigned int) k_3;
D.2774_24 = D.2772_5 + D.2773_11;
i_25 = (int) D.2774_24;
D.2735_12 = *pretmp.21_23;
if (D.2735_12 > i_25)
goto <bb 3>;
else
goto <bb 4>;
<bb 4>:
return;
}
--
steven at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Last reconfirmed|2005-12-21 03:39:56 |2010-02-12 21:46:26
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18316
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug tree-optimization/18316] Missed IV optimization
[not found] <bug-18316-4@http.gcc.gnu.org/bugzilla/>
@ 2012-11-08 23:00 ` steven at gcc dot gnu.org
0 siblings, 0 replies; 17+ messages in thread
From: steven at gcc dot gnu.org @ 2012-11-08 23:00 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18316
Steven Bosscher <steven at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Last reconfirmed|2010-02-12 21:46:26 |2012-11-08 21:46:26
--- Comment #15 from Steven Bosscher <steven at gcc dot gnu.org> 2012-11-08 22:59:49 UTC ---
Still a missed optimization as of trunk r193340:
strength_test2:
movl (%rdi), %ecx
movl %ecx, %eax
.p2align 4,,10
.p2align 3
.L3:
movslq 8(%rdi), %rdx
movl $2, (%rdi,%rdx,4)
movl %eax, %edx
addl %ecx, %eax
cmpl 4(%rdi), %edx
jl .L3
rep ret
strength_result2:
movl (%rdi), %ecx
xorl %eax, %eax
.p2align 4,,10
.p2align 3
.L7:
movslq 8(%rdi), %rdx
addl %ecx, %eax
movl $2, (%rdi,%rdx,4)
cmpl 4(%rdi), %eax
jl .L7
rep ret
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug tree-optimization/18316] Missed IV optimization
2004-11-06 16:39 [Bug tree-optimization/18316] New: " steven at gcc dot gnu dot org
` (11 preceding siblings ...)
2005-05-01 13:49 ` pinskia at gcc dot gnu dot org
@ 2005-07-08 18:19 ` pinskia at gcc dot gnu dot org
12 siblings, 0 replies; 17+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-07-08 18:19 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2005-07-08 18:19 -------
We still have either a ra issue (or ivopts issue which our current ra cannot resolve).
On the tree level we get the following difference.
strength_test2:
<L0>:;
*(data + (int *) ((unsigned int) *pretmp.9 * 4)) = 2;
D.1276 = (int) ivtmp.14;
ivtmp.14 = ivtmp.14 + ivtmp.17;
if (*pretmp.11 > D.1276) goto <L0>; else goto <L1>;
strength_result2:
<L0>:;
*(data + (int *) ((unsigned int) *pretmp.27 * 4)) = 2;
i = (int) ((unsigned int) i + (unsigned int) k);
if (*pretmp.28 > i) goto <L0>; else goto <L1>;
The PPC asm is:
test:
L2:
lwz r0,0(r7)
mr r9,r11
add r11,r11,r8
slwi r0,r0,2
stwx r6,r3,r0
lwz r2,0(r10)
cmpw cr7,r2,r9
bgt+ cr7,L2
result:
L9:
lwz r0,0(r10)
add r9,r9,r8
slwi r0,r0,2
stwx r7,r3,r0
lwz r2,0(r11)
cmpw cr7,r2,r9
bgt+ cr7,L9
Notice the extra mv.
--
What |Removed |Added
----------------------------------------------------------------------------
Keywords|patch |ra
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18316
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug tree-optimization/18316] Missed IV optimization
2004-11-06 16:39 [Bug tree-optimization/18316] New: " steven at gcc dot gnu dot org
` (10 preceding siblings ...)
2005-05-01 13:49 ` pinskia at gcc dot gnu dot org
@ 2005-05-01 13:49 ` pinskia at gcc dot gnu dot org
2005-07-08 18:19 ` pinskia at gcc dot gnu dot org
12 siblings, 0 replies; 17+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-05-01 13:49 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2005-05-01 13:49 -------
Oh, I have forgotten to say the IV opt is caught though.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18316
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug tree-optimization/18316] Missed IV optimization
2004-11-06 16:39 [Bug tree-optimization/18316] New: " steven at gcc dot gnu dot org
` (9 preceding siblings ...)
2005-05-01 8:08 ` cvs-commit at gcc dot gnu dot org
@ 2005-05-01 13:49 ` pinskia at gcc dot gnu dot org
2005-05-01 13:49 ` pinskia at gcc dot gnu dot org
2005-07-08 18:19 ` pinskia at gcc dot gnu dot org
12 siblings, 0 replies; 17+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-05-01 13:49 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2005-05-01 13:48 -------
On PPC, there are two extra mr's in the first case.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18316
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug tree-optimization/18316] Missed IV optimization
2004-11-06 16:39 [Bug tree-optimization/18316] New: " steven at gcc dot gnu dot org
` (8 preceding siblings ...)
2005-04-18 9:33 ` rakdver at gcc dot gnu dot org
@ 2005-05-01 8:08 ` cvs-commit at gcc dot gnu dot org
2005-05-01 13:49 ` pinskia at gcc dot gnu dot org
` (2 subsequent siblings)
12 siblings, 0 replies; 17+ messages in thread
From: cvs-commit at gcc dot gnu dot org @ 2005-05-01 8:08 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From cvs-commit at gcc dot gnu dot org 2005-05-01 08:08 -------
Subject: Bug 18316
CVSROOT: /cvs/gcc
Module name: gcc
Changes by: rakdver@gcc.gnu.org 2005-05-01 08:08:14
Modified files:
gcc : ChangeLog tree-scalar-evolution.c
tree-scalar-evolution.h tree-ssa-loop-ivopts.c
tree-ssa-loop-manip.c tree-ssa-loop-niter.c
tree.c
gcc/testsuite : ChangeLog
Added files:
gcc/testsuite/gcc.dg/tree-ssa: loop-8.c
Log message:
PR tree-optimization/18316
PR tree-optimization/19126
* tree.c (build_int_cst_type): Avoid shift by size of type.
* tree-scalar-evolution.c (simple_iv): Add allow_nonconstant_step
argument.
* tree-scalar-evolution.h (simple_iv): Declaration changed.
* tree-ssa-loop-ivopts.c (struct iv_cand): Add depends_on
field.
(dump_cand): Dump depends_on information.
(determine_biv_step): Add argument to simple_iv call.
(contains_abnormal_ssa_name_p): Handle case expr == NULL.
(find_bivs, find_givs_in_stmt_scev): Do not require step to be a
constant.
(add_candidate_1): Record depends_on for candidates.
(tree_int_cst_sign_bit, constant_multiple_of): New functions.
(get_computation_at, get_computation_cost_at, may_eliminate_iv):
Handle ivs with nonconstant step.
(iv_ca_set_remove_invariants, iv_ca_set_add_invariants): New functions.
(iv_ca_set_no_cp, iv_ca_set_cp): Handle cand->depends_on.
(create_new_iv): Unshare the step before passing it to create_iv.
(free_loop_data): Free cand->depends_on.
(build_addr_strip_iref): New function.
(find_interesting_uses_address): Use build_addr_strip_iref.
(strip_offset_1): Split the recursive part from strip_offset.
Strip constant offset component_refs and array_refs.
(strip_offset): Split the recursive part to strip_offset_1.
(add_address_candidates): Removed.
(add_derived_ivs_candidates): Do not use add_address_candidates.
(add_iv_value_candidates): Add candidates with stripped constant
offset. Consider all candidates with initial value 0 important.
(struct affine_tree_combination): New.
(aff_combination_const, aff_combination_elt, aff_combination_scale,
aff_combination_add_elt, aff_combination_add,
tree_to_aff_combination, add_elt_to_tree, aff_combination_to_tree,
fold_affine_sum): New functions.
(get_computation_at): Use fold_affine_sum.
* tree-ssa-loop-manip.c (create_iv): Handle ivs with nonconstant step.
* tree-ssa-loop-niter.c (number_of_iterations_exit): Add argument
to simple_iv call.
* gcc.dg/tree-ssa/loop-8.c: New test.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.8543&r2=2.8544
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-scalar-evolution.c.diff?cvsroot=gcc&r1=2.21&r2=2.22
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-scalar-evolution.h.diff?cvsroot=gcc&r1=2.3&r2=2.4
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-ssa-loop-ivopts.c.diff?cvsroot=gcc&r1=2.65&r2=2.66
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-ssa-loop-manip.c.diff?cvsroot=gcc&r1=2.31&r2=2.32
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-ssa-loop-niter.c.diff?cvsroot=gcc&r1=2.24&r2=2.25
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree.c.diff?cvsroot=gcc&r1=1.476&r2=1.477
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.5421&r2=1.5422
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/tree-ssa/loop-8.c.diff?cvsroot=gcc&r1=NONE&r2=1.1
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18316
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug tree-optimization/18316] Missed IV optimization
2004-11-06 16:39 [Bug tree-optimization/18316] New: " steven at gcc dot gnu dot org
` (7 preceding siblings ...)
2005-02-13 0:11 ` pinskia at gcc dot gnu dot org
@ 2005-04-18 9:33 ` rakdver at gcc dot gnu dot org
2005-05-01 8:08 ` cvs-commit at gcc dot gnu dot org
` (3 subsequent siblings)
12 siblings, 0 replies; 17+ messages in thread
From: rakdver at gcc dot gnu dot org @ 2005-04-18 9:33 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From rakdver at gcc dot gnu dot org 2005-04-18 09:33 -------
Updated patch:
http://gcc.gnu.org/ml/gcc-patches/2005-04/msg01959.html
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18316
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug tree-optimization/18316] Missed IV optimization
2004-11-06 16:39 [Bug tree-optimization/18316] New: " steven at gcc dot gnu dot org
` (6 preceding siblings ...)
2005-02-02 8:56 ` rakdver at gcc dot gnu dot org
@ 2005-02-13 0:11 ` pinskia at gcc dot gnu dot org
2005-04-18 9:33 ` rakdver at gcc dot gnu dot org
` (4 subsequent siblings)
12 siblings, 0 replies; 17+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-02-13 0:11 UTC (permalink / raw)
To: gcc-bugs
--
What |Removed |Added
----------------------------------------------------------------------------
Status|REOPENED |ASSIGNED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18316
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug tree-optimization/18316] Missed IV optimization
2004-11-06 16:39 [Bug tree-optimization/18316] New: " steven at gcc dot gnu dot org
` (5 preceding siblings ...)
2005-01-30 14:41 ` pinskia at gcc dot gnu dot org
@ 2005-02-02 8:56 ` rakdver at gcc dot gnu dot org
2005-02-13 0:11 ` pinskia at gcc dot gnu dot org
` (5 subsequent siblings)
12 siblings, 0 replies; 17+ messages in thread
From: rakdver at gcc dot gnu dot org @ 2005-02-02 8:56 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From rakdver at gcc dot gnu dot org 2005-02-02 08:56 -------
Patch:
http://gcc.gnu.org/ml/gcc-patches/2005-02/msg00142.html
--
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |patch
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18316
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug tree-optimization/18316] Missed IV optimization
2004-11-06 16:39 [Bug tree-optimization/18316] New: " steven at gcc dot gnu dot org
` (4 preceding siblings ...)
2005-01-25 11:35 ` rakdver at gcc dot gnu dot org
@ 2005-01-30 14:41 ` pinskia at gcc dot gnu dot org
2005-02-02 8:56 ` rakdver at gcc dot gnu dot org
` (6 subsequent siblings)
12 siblings, 0 replies; 17+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-01-30 14:41 UTC (permalink / raw)
To: gcc-bugs
--
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|4.0.0 |---
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18316
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug tree-optimization/18316] Missed IV optimization
2004-11-06 16:39 [Bug tree-optimization/18316] New: " steven at gcc dot gnu dot org
` (3 preceding siblings ...)
2005-01-24 9:12 ` stevenb at suse dot de
@ 2005-01-25 11:35 ` rakdver at gcc dot gnu dot org
2005-01-30 14:41 ` pinskia at gcc dot gnu dot org
` (7 subsequent siblings)
12 siblings, 0 replies; 17+ messages in thread
From: rakdver at gcc dot gnu dot org @ 2005-01-25 11:35 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From rakdver at gcc dot gnu dot org 2005-01-25 11:35 -------
Reopening as an enhancement request for ivopts.
--
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |REOPENED
Resolution|FIXED |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18316
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug tree-optimization/18316] Missed IV optimization
2004-11-06 16:39 [Bug tree-optimization/18316] New: " steven at gcc dot gnu dot org
` (2 preceding siblings ...)
2005-01-23 14:58 ` rakdver at gcc dot gnu dot org
@ 2005-01-24 9:12 ` stevenb at suse dot de
2005-01-25 11:35 ` rakdver at gcc dot gnu dot org
` (8 subsequent siblings)
12 siblings, 0 replies; 17+ messages in thread
From: stevenb at suse dot de @ 2005-01-24 9:12 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From stevenb at suse dot de 2005-01-24 09:12 -------
Subject: Re: Missed IV optimization
*sigh*
The old loop optimizer...
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18316
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug tree-optimization/18316] Missed IV optimization
2004-11-06 16:39 [Bug tree-optimization/18316] New: " steven at gcc dot gnu dot org
2004-11-06 17:00 ` [Bug tree-optimization/18316] " pinskia at gcc dot gnu dot org
2005-01-23 14:37 ` steven at gcc dot gnu dot org
@ 2005-01-23 14:58 ` rakdver at gcc dot gnu dot org
2005-01-24 9:12 ` stevenb at suse dot de
` (9 subsequent siblings)
12 siblings, 0 replies; 17+ messages in thread
From: rakdver at gcc dot gnu dot org @ 2005-01-23 14:58 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From rakdver at gcc dot gnu dot org 2005-01-23 14:58 -------
hmm... ivopts definitely are not the responsible for this, and I am fairly
suprised that this is fixed; could you please check what's happening?
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18316
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug tree-optimization/18316] Missed IV optimization
2004-11-06 16:39 [Bug tree-optimization/18316] New: " steven at gcc dot gnu dot org
2004-11-06 17:00 ` [Bug tree-optimization/18316] " pinskia at gcc dot gnu dot org
@ 2005-01-23 14:37 ` steven at gcc dot gnu dot org
2005-01-23 14:58 ` rakdver at gcc dot gnu dot org
` (10 subsequent siblings)
12 siblings, 0 replies; 17+ messages in thread
From: steven at gcc dot gnu dot org @ 2005-01-23 14:37 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From steven at gcc dot gnu dot org 2005-01-23 14:37 -------
Bravo Zdenek!!!
.text
.p2align 4,,15
.globl strength_test2
.type strength_test2, @function
strength_test2:
.LFB2:
movl (%rdi), %r8d
leaq 8(%rdi), %rsi
leaq 4(%rdi), %rcx
xorl %edx, %edx
.p2align 4,,7
.L2:
movslq (%rsi),%rax
addl %r8d, %edx
movl $2, (%rdi,%rax,4)
cmpl (%rcx), %edx
jl .L2
rep ; ret
.LFE2:
.size strength_test2, .-strength_test2
.p2align 4,,15
.globl strength_result2
.type strength_result2, @function
strength_result2:
.LFB3:
movl (%rdi), %r8d
leaq 8(%rdi), %rsi
leaq 4(%rdi), %rcx
xorl %edx, %edx
.p2align 4,,7
.L9:
movslq (%rsi),%rax
addl %r8d, %edx
movl $2, (%rdi,%rax,4)
cmpl (%rcx), %edx
jl .L9
rep ; ret
.LFE3:
.size strength_result2, .-strength_result2
--
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
Target Milestone|--- |4.0.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18316
^ permalink raw reply [flat|nested] 17+ messages in thread
* [Bug tree-optimization/18316] Missed IV optimization
2004-11-06 16:39 [Bug tree-optimization/18316] New: " steven at gcc dot gnu dot org
@ 2004-11-06 17:00 ` pinskia at gcc dot gnu dot org
2005-01-23 14:37 ` steven at gcc dot gnu dot org
` (11 subsequent siblings)
12 siblings, 0 replies; 17+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-11-06 17:00 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-11-06 17:00 -------
Confirmed, so does this.
--
What |Removed |Added
----------------------------------------------------------------------------
Severity|normal |enhancement
Status|UNCONFIRMED |NEW
Ever Confirmed| |1
Last reconfirmed|0000-00-00 00:00:00 |2004-11-06 17:00:55
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18316
^ permalink raw reply [flat|nested] 17+ messages in thread
end of thread, other threads:[~2012-11-08 23:00 UTC | newest]
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[not found] <bug-18316-280@http.gcc.gnu.org/bugzilla/>
2007-12-17 8:14 ` [Bug tree-optimization/18316] Missed IV optimization steven at gcc dot gnu dot org
2008-09-14 4:03 ` pinskia at gcc dot gnu dot org
2010-02-12 21:46 ` steven at gcc dot gnu dot org
[not found] <bug-18316-4@http.gcc.gnu.org/bugzilla/>
2012-11-08 23:00 ` steven at gcc dot gnu.org
2004-11-06 16:39 [Bug tree-optimization/18316] New: " steven at gcc dot gnu dot org
2004-11-06 17:00 ` [Bug tree-optimization/18316] " pinskia at gcc dot gnu dot org
2005-01-23 14:37 ` steven at gcc dot gnu dot org
2005-01-23 14:58 ` rakdver at gcc dot gnu dot org
2005-01-24 9:12 ` stevenb at suse dot de
2005-01-25 11:35 ` rakdver at gcc dot gnu dot org
2005-01-30 14:41 ` pinskia at gcc dot gnu dot org
2005-02-02 8:56 ` rakdver at gcc dot gnu dot org
2005-02-13 0:11 ` pinskia at gcc dot gnu dot org
2005-04-18 9:33 ` rakdver at gcc dot gnu dot org
2005-05-01 8:08 ` cvs-commit at gcc dot gnu dot org
2005-05-01 13:49 ` pinskia at gcc dot gnu dot org
2005-05-01 13:49 ` pinskia at gcc dot gnu dot org
2005-07-08 18:19 ` pinskia at gcc dot gnu dot org
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