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* [Bug tree-optimization/62167] New: [tail-merge] dead type-unsafe load replaces type-safe load
@ 2014-08-18 8:47 vries at gcc dot gnu.org
2014-08-19 10:17 ` [Bug tree-optimization/62167] " vries at gcc dot gnu.org
` (6 more replies)
0 siblings, 7 replies; 8+ messages in thread
From: vries at gcc dot gnu.org @ 2014-08-18 8:47 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62167
Bug ID: 62167
Summary: [tail-merge] dead type-unsafe load replaces type-safe
load
Product: gcc
Version: 4.8.4
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: vries at gcc dot gnu.org
The example from PR62004 fails with -ftree-tail-merge. The PR62004 report is
reserved for the rtl if-conversion part, this report is reserved for the
tail-merge part.
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug tree-optimization/62167] [tail-merge] dead type-unsafe load replaces type-safe load
2014-08-18 8:47 [Bug tree-optimization/62167] New: [tail-merge] dead type-unsafe load replaces type-safe load vries at gcc dot gnu.org
@ 2014-08-19 10:17 ` vries at gcc dot gnu.org
2014-08-19 10:18 ` vries at gcc dot gnu.org
` (5 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: vries at gcc dot gnu.org @ 2014-08-19 10:17 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62167
--- Comment #1 from vries at gcc dot gnu.org ---
Created attachment 33360
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=33360&action=edit
tentative patch, testing atm
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug tree-optimization/62167] [tail-merge] dead type-unsafe load replaces type-safe load
2014-08-18 8:47 [Bug tree-optimization/62167] New: [tail-merge] dead type-unsafe load replaces type-safe load vries at gcc dot gnu.org
2014-08-19 10:17 ` [Bug tree-optimization/62167] " vries at gcc dot gnu.org
@ 2014-08-19 10:18 ` vries at gcc dot gnu.org
2014-11-18 17:08 ` [Bug tree-optimization/62167] [4.8 Regression][tail-merge] " vries at gcc dot gnu.org
` (4 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: vries at gcc dot gnu.org @ 2014-08-19 10:18 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62167
vries at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2014-08-19
Ever confirmed|0 |1
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug tree-optimization/62167] [4.8 Regression][tail-merge] dead type-unsafe load replaces type-safe load
2014-08-18 8:47 [Bug tree-optimization/62167] New: [tail-merge] dead type-unsafe load replaces type-safe load vries at gcc dot gnu.org
2014-08-19 10:17 ` [Bug tree-optimization/62167] " vries at gcc dot gnu.org
2014-08-19 10:18 ` vries at gcc dot gnu.org
@ 2014-11-18 17:08 ` vries at gcc dot gnu.org
2014-11-19 10:45 ` vries at gcc dot gnu.org
` (3 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: vries at gcc dot gnu.org @ 2014-11-18 17:08 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62167
vries at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |patch, wrong-code
--- Comment #2 from vries at gcc dot gnu.org ---
https://gcc.gnu.org/ml/gcc-patches/2014-11/msg02324.html
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug tree-optimization/62167] [4.8 Regression][tail-merge] dead type-unsafe load replaces type-safe load
2014-08-18 8:47 [Bug tree-optimization/62167] New: [tail-merge] dead type-unsafe load replaces type-safe load vries at gcc dot gnu.org
` (2 preceding siblings ...)
2014-11-18 17:08 ` [Bug tree-optimization/62167] [4.8 Regression][tail-merge] " vries at gcc dot gnu.org
@ 2014-11-19 10:45 ` vries at gcc dot gnu.org
2014-11-19 10:51 ` vries at gcc dot gnu.org
` (2 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: vries at gcc dot gnu.org @ 2014-11-19 10:45 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62167
--- Comment #3 from vries at gcc dot gnu.org ---
Author: vries
Date: Wed Nov 19 10:44:58 2014
New Revision: 217761
URL: https://gcc.gnu.org/viewcvs?rev=217761&root=gcc&view=rev
Log:
Fix tail-merge pass for dead type-unsafe code
2014-11-19 Tom de Vries <tom@codesourcery.com>
PR tree-optimization/62167
* tree-ssa-tail-merge.c (stmt_local_def): Handle statements with vuse
conservatively.
(gimple_equal_p): Don't use vn_valueize to compare for lhs equality of
assigns.
* gcc.dg/pr51879-12.c: Add xfails.
* gcc.dg/pr62167-run.c: New test.
* gcc.dg/pr62167.c: New test.
Added:
trunk/gcc/testsuite/gcc.dg/pr62167-run.c
trunk/gcc/testsuite/gcc.dg/pr62167.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/gcc.dg/pr51879-12.c
trunk/gcc/tree-ssa-tail-merge.c
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug tree-optimization/62167] [4.8 Regression][tail-merge] dead type-unsafe load replaces type-safe load
2014-08-18 8:47 [Bug tree-optimization/62167] New: [tail-merge] dead type-unsafe load replaces type-safe load vries at gcc dot gnu.org
` (3 preceding siblings ...)
2014-11-19 10:45 ` vries at gcc dot gnu.org
@ 2014-11-19 10:51 ` vries at gcc dot gnu.org
2014-11-19 11:08 ` vries at gcc dot gnu.org
2014-11-19 11:22 ` vries at gcc dot gnu.org
6 siblings, 0 replies; 8+ messages in thread
From: vries at gcc dot gnu.org @ 2014-11-19 10:51 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62167
--- Comment #4 from vries at gcc dot gnu.org ---
Author: vries
Date: Wed Nov 19 10:50:42 2014
New Revision: 217763
URL: https://gcc.gnu.org/viewcvs?rev=217763&root=gcc&view=rev
Log:
Fix tail-merge pass for dead type-unsafe code
2014-11-19 Tom de Vries <tom@codesourcery.com>
Backport from mainline
PR tree-optimization/62167
* tree-ssa-tail-merge.c (stmt_local_def): Handle statements with vuse
conservatively.
(gimple_equal_p): Don't use vn_valueize to compare for lhs equality of
assigns.
* gcc.dg/pr51879-12.c: Add xfails.
* gcc.dg/pr62167-run.c: New test.
* gcc.dg/pr62167.c: New test.
Added:
branches/gcc-4_9-branch/gcc/testsuite/gcc.dg/pr62167-run.c
branches/gcc-4_9-branch/gcc/testsuite/gcc.dg/pr62167.c
Modified:
branches/gcc-4_9-branch/gcc/ChangeLog
branches/gcc-4_9-branch/gcc/testsuite/ChangeLog
branches/gcc-4_9-branch/gcc/testsuite/gcc.dg/pr51879-12.c
branches/gcc-4_9-branch/gcc/tree-ssa-tail-merge.c
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug tree-optimization/62167] [4.8 Regression][tail-merge] dead type-unsafe load replaces type-safe load
2014-08-18 8:47 [Bug tree-optimization/62167] New: [tail-merge] dead type-unsafe load replaces type-safe load vries at gcc dot gnu.org
` (4 preceding siblings ...)
2014-11-19 10:51 ` vries at gcc dot gnu.org
@ 2014-11-19 11:08 ` vries at gcc dot gnu.org
2014-11-19 11:22 ` vries at gcc dot gnu.org
6 siblings, 0 replies; 8+ messages in thread
From: vries at gcc dot gnu.org @ 2014-11-19 11:08 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62167
--- Comment #5 from vries at gcc dot gnu.org ---
Author: vries
Date: Wed Nov 19 11:08:02 2014
New Revision: 217764
URL: https://gcc.gnu.org/viewcvs?rev=217764&root=gcc&view=rev
Log:
Fix tail-merge pass for dead type-unsafe code
2014-11-19 Tom de Vries <tom@codesourcery.com>
Backport from mainline
PR tree-optimization/62167
* tree-ssa-tail-merge.c (stmt_local_def): Handle statements with vuse
conservatively.
(gimple_equal_p): Don't use vn_valueize to compare for lhs equality of
assigns.
* gcc.dg/pr51879-12.c: Add xfails.
* gcc.dg/pr62167-run.c: New test.
* gcc.dg/pr62167.c: New test.
Added:
branches/gcc-4_8-branch/gcc/testsuite/gcc.dg/pr62167-run.c
branches/gcc-4_8-branch/gcc/testsuite/gcc.dg/pr62167.c
Modified:
branches/gcc-4_8-branch/gcc/ChangeLog
branches/gcc-4_8-branch/gcc/testsuite/ChangeLog
branches/gcc-4_8-branch/gcc/testsuite/gcc.dg/pr51879-12.c
branches/gcc-4_8-branch/gcc/tree-ssa-tail-merge.c
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug tree-optimization/62167] [4.8 Regression][tail-merge] dead type-unsafe load replaces type-safe load
2014-08-18 8:47 [Bug tree-optimization/62167] New: [tail-merge] dead type-unsafe load replaces type-safe load vries at gcc dot gnu.org
` (5 preceding siblings ...)
2014-11-19 11:08 ` vries at gcc dot gnu.org
@ 2014-11-19 11:22 ` vries at gcc dot gnu.org
6 siblings, 0 replies; 8+ messages in thread
From: vries at gcc dot gnu.org @ 2014-11-19 11:22 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62167
vries at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
--- Comment #6 from vries at gcc dot gnu.org ---
patch and testcases committed to trunk, propagated to 4.8 and 4.9
Filed followup PR (PR63955 - Remove pr51879-12.c xfail) for xfail.
Marking resolved fixed.
^ permalink raw reply [flat|nested] 8+ messages in thread
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2014-08-18 8:47 [Bug tree-optimization/62167] New: [tail-merge] dead type-unsafe load replaces type-safe load vries at gcc dot gnu.org
2014-08-19 10:17 ` [Bug tree-optimization/62167] " vries at gcc dot gnu.org
2014-08-19 10:18 ` vries at gcc dot gnu.org
2014-11-18 17:08 ` [Bug tree-optimization/62167] [4.8 Regression][tail-merge] " vries at gcc dot gnu.org
2014-11-19 10:45 ` vries at gcc dot gnu.org
2014-11-19 10:51 ` vries at gcc dot gnu.org
2014-11-19 11:08 ` vries at gcc dot gnu.org
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