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* [Bug tree-optimization/57660] New: [4.9 regression] FAIL: gcc.dg/tree-ssa/forwprop-28.c scan-tree-dump-times forwprop1 "Replaced" 8
@ 2013-06-20 13:10 schwab@linux-m68k.org
2013-06-20 15:25 ` [Bug tree-optimization/57660] " law at redhat dot com
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: schwab@linux-m68k.org @ 2013-06-20 13:10 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57660
Bug ID: 57660
Summary: [4.9 regression] FAIL: gcc.dg/tree-ssa/forwprop-28.c
scan-tree-dump-times forwprop1 "Replaced" 8
Product: gcc
Version: 4.9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: schwab@linux-m68k.org
CC: law at gcc dot gnu.org
Target: m68k-*-*
Created attachment 30325
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=30325&action=edit
forwprop-28.c.022t.forwprop1
Executing on host: /daten/aranym/gcc/gcc-20130620/Build/gcc/xgcc
-B/daten/aranym/gcc/gcc-20130620/Build/gcc/
/daten/aranym/gcc/gcc-20130620/gcc/testsuite/gcc.dg/tree-ssa/forwprop-28.c
-fno-diagnostics-show-caret -fdiagnostics-color=never -O2
-fdump-tree-forwprop1 -S -o forwprop-28.s (timeout = 300)
spawn /daten/aranym/gcc/gcc-20130620/Build/gcc/xgcc
-B/daten/aranym/gcc/gcc-20130620/Build/gcc/
/daten/aranym/gcc/gcc-20130620/gcc/testsuite/gcc.dg/tree-ssa/forwprop-28.c
-fno-diagnostics-show-caret -fdiagnostics-color=never -O2 -fdump-tree-forwprop1
-S -o forwprop-28.s
PASS: gcc.dg/tree-ssa/forwprop-28.c (test for excess errors)
FAIL: gcc.dg/tree-ssa/forwprop-28.c scan-tree-dump-times forwprop1 "Replaced" 8
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug tree-optimization/57660] FAIL: gcc.dg/tree-ssa/forwprop-28.c scan-tree-dump-times forwprop1 "Replaced" 8
2013-06-20 13:10 [Bug tree-optimization/57660] New: [4.9 regression] FAIL: gcc.dg/tree-ssa/forwprop-28.c scan-tree-dump-times forwprop1 "Replaced" 8 schwab@linux-m68k.org
@ 2013-06-20 15:25 ` law at redhat dot com
2013-06-20 16:03 ` law at redhat dot com
2013-06-20 17:17 ` law at redhat dot com
2 siblings, 0 replies; 4+ messages in thread
From: law at redhat dot com @ 2013-06-20 15:25 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57660
Jeffrey A. Law <law at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |law at redhat dot com
Assignee|unassigned at gcc dot gnu.org |law at redhat dot com
Summary|[4.9 regression] FAIL: |FAIL:
|gcc.dg/tree-ssa/forwprop-28 |gcc.dg/tree-ssa/forwprop-28
|.c scan-tree-dump-times |.c scan-tree-dump-times
|forwprop1 "Replaced" 8 |forwprop1 "Replaced" 8
--- Comment #1 from Jeffrey A. Law <law at redhat dot com> ---
Not a regression as it's a new test. Odds are other targets with similar
branch cost characteristics are going to see this new failure as well. Mine.
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug tree-optimization/57660] FAIL: gcc.dg/tree-ssa/forwprop-28.c scan-tree-dump-times forwprop1 "Replaced" 8
2013-06-20 13:10 [Bug tree-optimization/57660] New: [4.9 regression] FAIL: gcc.dg/tree-ssa/forwprop-28.c scan-tree-dump-times forwprop1 "Replaced" 8 schwab@linux-m68k.org
2013-06-20 15:25 ` [Bug tree-optimization/57660] " law at redhat dot com
@ 2013-06-20 16:03 ` law at redhat dot com
2013-06-20 17:17 ` law at redhat dot com
2 siblings, 0 replies; 4+ messages in thread
From: law at redhat dot com @ 2013-06-20 16:03 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57660
--- Comment #2 from Jeffrey A. Law <law at redhat dot com> ---
We've got two choices here.
First is to somehow make the number of replacements we look for be conditional
on the target. For targets with an appropriate branch cost (such as m68K)
we'll see 2X the number of replacements as x86_64.
The other approach is to disable the test on those targets, much like we do
with vrp87.c.
I'm investigating the former, if I can find a clean way to do that it'd be the
preferred solution. Otherwise I'll do the latter.
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug tree-optimization/57660] FAIL: gcc.dg/tree-ssa/forwprop-28.c scan-tree-dump-times forwprop1 "Replaced" 8
2013-06-20 13:10 [Bug tree-optimization/57660] New: [4.9 regression] FAIL: gcc.dg/tree-ssa/forwprop-28.c scan-tree-dump-times forwprop1 "Replaced" 8 schwab@linux-m68k.org
2013-06-20 15:25 ` [Bug tree-optimization/57660] " law at redhat dot com
2013-06-20 16:03 ` law at redhat dot com
@ 2013-06-20 17:17 ` law at redhat dot com
2 siblings, 0 replies; 4+ messages in thread
From: law at redhat dot com @ 2013-06-20 17:17 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57660
Jeffrey A. Law <law at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |FIXED
--- Comment #3 from Jeffrey A. Law <law at redhat dot com> ---
Test disabled on m68k and other targets with similar branch costs.
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2013-06-20 17:17 UTC | newest]
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2013-06-20 13:10 [Bug tree-optimization/57660] New: [4.9 regression] FAIL: gcc.dg/tree-ssa/forwprop-28.c scan-tree-dump-times forwprop1 "Replaced" 8 schwab@linux-m68k.org
2013-06-20 15:25 ` [Bug tree-optimization/57660] " law at redhat dot com
2013-06-20 16:03 ` law at redhat dot com
2013-06-20 17:17 ` law at redhat dot com
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