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* [Bug rtl-optimization/48658] New: [4.3 Regression]: ICE in reload_cse_simplify_operands, at postreload.c:395
@ 2011-04-18 3:50 hp at gcc dot gnu.org
2011-04-18 4:13 ` [Bug rtl-optimization/48658] " hp at gcc dot gnu.org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: hp at gcc dot gnu.org @ 2011-04-18 3:50 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48658
Summary: [4.3 Regression]: ICE in reload_cse_simplify_operands,
at postreload.c:395
Product: gcc
Version: 4.3.6
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: rtl-optimization
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: hp@gcc.gnu.org
Target: sparc64-*-*
Created attachment 24024
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=24024
Preprocessed test-case; repeat with "gcc -m32 -O2 -mcpu=ultrasparc -mvis"
I'm unfortunately just going to park this report here, not reducing it or
analyzing it or anything. While I believe it is somewhat related to
concatenating vectors to form a larger (supported) vector and thereby enticing
register allocation to use a suitable separable multi register accessible in
the wider mode (which works for trivial code), I haven't analyzed it enough to
state it as a fact.
Anyway, the following code does not ICE with "GNU C version 4.1.3 20080704
(prerelease) (Debian 4.1.2-25) (sparc-linux-gnu)". It does ICE with gcc-4.3.x
at least up to and including the "GNU C (GCC) version 4.3.6 20110410
(prerelease) (sparc64-unknown-linux-gnu)" snapshot. It does not ICE with
gcc-4.4.0. It does ICE with "GNU C (GCC) version 4.4.0 20080820 (experimental)
[trunk revision 139269] (sparc64-unknown-linux-gnu)" (trunk before the 4.4
branch) so bisecting trunk from that revision up to the 4.0 branch should find
a commit that fixes or hides the bug.
It is not trivially identical to bug 37053, because this bug does not appear
for gcc-4.4.0, and bug 37053 was not fixed until gcc-4.5.0 (the fix has not
been backported to the 4.4 branch IIUC).
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug rtl-optimization/48658] [4.3 Regression]: ICE in reload_cse_simplify_operands, at postreload.c:395
2011-04-18 3:50 [Bug rtl-optimization/48658] New: [4.3 Regression]: ICE in reload_cse_simplify_operands, at postreload.c:395 hp at gcc dot gnu.org
@ 2011-04-18 4:13 ` hp at gcc dot gnu.org
2011-06-01 20:54 ` ebotcazou at gcc dot gnu.org
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: hp at gcc dot gnu.org @ 2011-04-18 4:13 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48658
Hans-Peter Nilsson <hp at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2011.04.18 04:12:52
Known to work| |4.4.0
Version|4.3.6 |4.3.5
Target Milestone|--- |4.3.6
Ever Confirmed|0 |1
Known to fail| |4.3.5
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug rtl-optimization/48658] [4.3 Regression]: ICE in reload_cse_simplify_operands, at postreload.c:395
2011-04-18 3:50 [Bug rtl-optimization/48658] New: [4.3 Regression]: ICE in reload_cse_simplify_operands, at postreload.c:395 hp at gcc dot gnu.org
2011-04-18 4:13 ` [Bug rtl-optimization/48658] " hp at gcc dot gnu.org
@ 2011-06-01 20:54 ` ebotcazou at gcc dot gnu.org
2011-06-02 14:13 ` ebotcazou at gcc dot gnu.org
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: ebotcazou at gcc dot gnu.org @ 2011-06-01 20:54 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48658
Eric Botcazou <ebotcazou at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
CC| |ebotcazou at gcc dot
| |gnu.org
AssignedTo|unassigned at gcc dot |ebotcazou at gcc dot
|gnu.org |gnu.org
--- Comment #1 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2011-06-01 20:54:07 UTC ---
Investigating.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug rtl-optimization/48658] [4.3 Regression]: ICE in reload_cse_simplify_operands, at postreload.c:395
2011-04-18 3:50 [Bug rtl-optimization/48658] New: [4.3 Regression]: ICE in reload_cse_simplify_operands, at postreload.c:395 hp at gcc dot gnu.org
2011-04-18 4:13 ` [Bug rtl-optimization/48658] " hp at gcc dot gnu.org
2011-06-01 20:54 ` ebotcazou at gcc dot gnu.org
@ 2011-06-02 14:13 ` ebotcazou at gcc dot gnu.org
2011-06-27 10:45 ` rguenth at gcc dot gnu.org
2011-06-27 12:16 ` rguenth at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: ebotcazou at gcc dot gnu.org @ 2011-06-02 14:13 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48658
Eric Botcazou <ebotcazou at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |NEW
AssignedTo|ebotcazou at gcc dot |unassigned at gcc dot
|gnu.org |gnu.org
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug rtl-optimization/48658] [4.3 Regression]: ICE in reload_cse_simplify_operands, at postreload.c:395
2011-04-18 3:50 [Bug rtl-optimization/48658] New: [4.3 Regression]: ICE in reload_cse_simplify_operands, at postreload.c:395 hp at gcc dot gnu.org
` (2 preceding siblings ...)
2011-06-02 14:13 ` ebotcazou at gcc dot gnu.org
@ 2011-06-27 10:45 ` rguenth at gcc dot gnu.org
2011-06-27 12:16 ` rguenth at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: rguenth at gcc dot gnu.org @ 2011-06-27 10:45 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48658
Richard Guenther <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P4
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug rtl-optimization/48658] [4.3 Regression]: ICE in reload_cse_simplify_operands, at postreload.c:395
2011-04-18 3:50 [Bug rtl-optimization/48658] New: [4.3 Regression]: ICE in reload_cse_simplify_operands, at postreload.c:395 hp at gcc dot gnu.org
` (3 preceding siblings ...)
2011-06-27 10:45 ` rguenth at gcc dot gnu.org
@ 2011-06-27 12:16 ` rguenth at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: rguenth at gcc dot gnu.org @ 2011-06-27 12:16 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48658
Richard Guenther <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
Target Milestone|4.3.6 |4.4.0
--- Comment #2 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-06-27 12:06:22 UTC ---
Fixed for 4.4.0.
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2011-06-27 12:16 UTC | newest]
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2011-04-18 3:50 [Bug rtl-optimization/48658] New: [4.3 Regression]: ICE in reload_cse_simplify_operands, at postreload.c:395 hp at gcc dot gnu.org
2011-04-18 4:13 ` [Bug rtl-optimization/48658] " hp at gcc dot gnu.org
2011-06-01 20:54 ` ebotcazou at gcc dot gnu.org
2011-06-02 14:13 ` ebotcazou at gcc dot gnu.org
2011-06-27 10:45 ` rguenth at gcc dot gnu.org
2011-06-27 12:16 ` rguenth at gcc dot gnu.org
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