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* [Bug middle-end/40446] New: [4.4/4.5 Regression] ICE in gen_lowpart_general
@ 2009-06-15 13:35 jakub at gcc dot gnu dot org
2009-06-15 13:59 ` [Bug middle-end/40446] " rguenth at gcc dot gnu dot org
` (6 more replies)
0 siblings, 7 replies; 8+ messages in thread
From: jakub at gcc dot gnu dot org @ 2009-06-15 13:35 UTC (permalink / raw)
To: gcc-bugs
#include <emmintrin.h>
#include <complex>
#include <cstdlib>
int
main ()
{
union { __m128d vec; double val[2]; } u;
std::complex<double> c = std::complex<double>(0, 1);
u.vec = _mm_load_pd ((double*)&c);
if (u.val[0] != 0 || u.val[1] != 1)
abort ();
}
ICEs with -O1 and above in g++ 4.4 and above. More reduced testcase:
struct S
{
S (double r, double i) { __real__ s = r; __imag__ s = i; }
__complex__ double s;
};
double __attribute__((vector_size (16)))
foo ()
{
S c (0, 1);
return *(double __attribute__((vector_size (16))) *) &c;
}
--
Summary: [4.4/4.5 Regression] ICE in gen_lowpart_general
Product: gcc
Version: 4.4.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: middle-end
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: jakub at gcc dot gnu dot org
GCC target triplet: x86_64-linux
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40446
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug middle-end/40446] [4.4/4.5 Regression] ICE in gen_lowpart_general
2009-06-15 13:35 [Bug middle-end/40446] New: [4.4/4.5 Regression] ICE in gen_lowpart_general jakub at gcc dot gnu dot org
@ 2009-06-15 13:59 ` rguenth at gcc dot gnu dot org
2009-06-15 14:35 ` jakub at gcc dot gnu dot org
` (5 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2009-06-15 13:59 UTC (permalink / raw)
To: gcc-bugs
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |4.4.1
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40446
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug middle-end/40446] [4.4/4.5 Regression] ICE in gen_lowpart_general
2009-06-15 13:35 [Bug middle-end/40446] New: [4.4/4.5 Regression] ICE in gen_lowpart_general jakub at gcc dot gnu dot org
2009-06-15 13:59 ` [Bug middle-end/40446] " rguenth at gcc dot gnu dot org
@ 2009-06-15 14:35 ` jakub at gcc dot gnu dot org
2009-06-15 14:55 ` pinskia at gcc dot gnu dot org
` (4 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: jakub at gcc dot gnu dot org @ 2009-06-15 14:35 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from jakub at gcc dot gnu dot org 2009-06-15 14:35 -------
Caused by
http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=134947
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40446
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug middle-end/40446] [4.4/4.5 Regression] ICE in gen_lowpart_general
2009-06-15 13:35 [Bug middle-end/40446] New: [4.4/4.5 Regression] ICE in gen_lowpart_general jakub at gcc dot gnu dot org
2009-06-15 13:59 ` [Bug middle-end/40446] " rguenth at gcc dot gnu dot org
2009-06-15 14:35 ` jakub at gcc dot gnu dot org
@ 2009-06-15 14:55 ` pinskia at gcc dot gnu dot org
2009-06-16 9:08 ` jakub at gcc dot gnu dot org
` (3 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2009-06-15 14:55 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from pinskia at gcc dot gnu dot org 2009-06-15 14:55 -------
(In reply to comment #1)
> Caused by
> http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=134947
In this case, exposed as VIEW_CONVERT_EXPR was not widely used before so there
will be some bugs that we did not hit until that patch :).
--
pinskia 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=40446
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug middle-end/40446] [4.4/4.5 Regression] ICE in gen_lowpart_general
2009-06-15 13:35 [Bug middle-end/40446] New: [4.4/4.5 Regression] ICE in gen_lowpart_general jakub at gcc dot gnu dot org
` (2 preceding siblings ...)
2009-06-15 14:55 ` pinskia at gcc dot gnu dot org
@ 2009-06-16 9:08 ` jakub at gcc dot gnu dot org
2009-06-16 13:48 ` jakub at gcc dot gnu dot org
` (2 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: jakub at gcc dot gnu dot org @ 2009-06-16 9:08 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from jakub at gcc dot gnu dot org 2009-06-16 09:07 -------
Testing a patch.
--
jakub at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |jakub at gcc dot gnu dot org
|dot org |
Status|UNCONFIRMED |ASSIGNED
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2009-06-16 09:07:48
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40446
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug middle-end/40446] [4.4/4.5 Regression] ICE in gen_lowpart_general
2009-06-15 13:35 [Bug middle-end/40446] New: [4.4/4.5 Regression] ICE in gen_lowpart_general jakub at gcc dot gnu dot org
` (3 preceding siblings ...)
2009-06-16 9:08 ` jakub at gcc dot gnu dot org
@ 2009-06-16 13:48 ` jakub at gcc dot gnu dot org
2009-06-16 14:29 ` jakub at gcc dot gnu dot org
2009-06-16 14:30 ` jakub at gcc dot gnu dot org
6 siblings, 0 replies; 8+ messages in thread
From: jakub at gcc dot gnu dot org @ 2009-06-16 13:48 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from jakub at gcc dot gnu dot org 2009-06-16 13:48 -------
Subject: Bug 40446
Author: jakub
Date: Tue Jun 16 13:48:07 2009
New Revision: 148533
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=148533
Log:
PR middle-end/40446
* expr.c (expand_expr_real_1) <case VIEW_CONVERT_EXPR>: Don't
use gen_lowpart if op0 has complex mode.
* g++.dg/other/pr40446.C: New test.
Added:
trunk/gcc/testsuite/g++.dg/other/pr40446.C
Modified:
trunk/gcc/ChangeLog
trunk/gcc/expr.c
trunk/gcc/testsuite/ChangeLog
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40446
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug middle-end/40446] [4.4/4.5 Regression] ICE in gen_lowpart_general
2009-06-15 13:35 [Bug middle-end/40446] New: [4.4/4.5 Regression] ICE in gen_lowpart_general jakub at gcc dot gnu dot org
` (4 preceding siblings ...)
2009-06-16 13:48 ` jakub at gcc dot gnu dot org
@ 2009-06-16 14:29 ` jakub at gcc dot gnu dot org
2009-06-16 14:30 ` jakub at gcc dot gnu dot org
6 siblings, 0 replies; 8+ messages in thread
From: jakub at gcc dot gnu dot org @ 2009-06-16 14:29 UTC (permalink / raw)
To: gcc-bugs
------- Comment #5 from jakub at gcc dot gnu dot org 2009-06-16 14:29 -------
Subject: Bug 40446
Author: jakub
Date: Tue Jun 16 14:28:47 2009
New Revision: 148536
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=148536
Log:
PR middle-end/40446
* expr.c (expand_expr_real_1) <case VIEW_CONVERT_EXPR>: Don't
use gen_lowpart if op0 has complex mode.
* g++.dg/other/pr40446.C: New test.
Added:
branches/gcc-4_4-branch/gcc/testsuite/g++.dg/other/pr40446.C
Modified:
branches/gcc-4_4-branch/gcc/ChangeLog
branches/gcc-4_4-branch/gcc/expr.c
branches/gcc-4_4-branch/gcc/testsuite/ChangeLog
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40446
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug middle-end/40446] [4.4/4.5 Regression] ICE in gen_lowpart_general
2009-06-15 13:35 [Bug middle-end/40446] New: [4.4/4.5 Regression] ICE in gen_lowpart_general jakub at gcc dot gnu dot org
` (5 preceding siblings ...)
2009-06-16 14:29 ` jakub at gcc dot gnu dot org
@ 2009-06-16 14:30 ` jakub at gcc dot gnu dot org
6 siblings, 0 replies; 8+ messages in thread
From: jakub at gcc dot gnu dot org @ 2009-06-16 14:30 UTC (permalink / raw)
To: gcc-bugs
------- Comment #6 from jakub at gcc dot gnu dot org 2009-06-16 14:30 -------
Fixed.
--
jakub at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40446
^ permalink raw reply [flat|nested] 8+ messages in thread
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2009-06-15 13:35 [Bug middle-end/40446] New: [4.4/4.5 Regression] ICE in gen_lowpart_general jakub at gcc dot gnu dot org
2009-06-15 13:59 ` [Bug middle-end/40446] " rguenth at gcc dot gnu dot org
2009-06-15 14:35 ` jakub at gcc dot gnu dot org
2009-06-15 14:55 ` pinskia at gcc dot gnu dot org
2009-06-16 9:08 ` jakub at gcc dot gnu dot org
2009-06-16 13:48 ` jakub at gcc dot gnu dot org
2009-06-16 14:29 ` jakub at gcc dot gnu dot org
2009-06-16 14:30 ` jakub at gcc dot gnu dot org
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