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* [Bug c/17961] New: ICE for operation on small vector with altivec enabled
@ 2004-10-12 23:41 janis187 at us dot ibm dot com
2004-10-14 13:34 ` [Bug middle-end/17961] " pinskia at gcc dot gnu dot org
` (11 more replies)
0 siblings, 12 replies; 13+ messages in thread
From: janis187 at us dot ibm dot com @ 2004-10-12 23:41 UTC (permalink / raw)
To: gcc-bugs
This test case causes two different internal compiler errors in GCC when
compiled with "-m32 -maltivec", with VECSIZE either 2 or 8:
__attribute__ ((vector_size (VECSIZE))) unsigned char v1, v2, v3;
void vxor (void) { v1 = v2 ^ v3; }
Using a cross compiler on i686-linux with today's mainline:
laptop% $XGCC -m32 -maltivec -DVECSIZE=2 -c bug2.c
bug2.c: In function 'vxor':
bug2.c:9: internal compiler error: in operand_subword_force, at
/emit-rtl.c:1384Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
laptop% $XGCC -m32 -maltivec -DVECSIZE=8 -c bug2.c
bug2.c: In function 'vxor':
bug2.c:10: internal compiler error: in simplify_subreg, at /simplify-rtx.c:3572
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
There is no ICE when VECSIZE is 4. Hardware-supported AltiVec vectors
are 16 bytes, so all of these are smaller than hardware-supported
vectors. The larger testcase compiles and runs as expected when hardware
vector support is not enabled.
--
Summary: ICE for operation on small vector with altivec enabled
Product: gcc
Version: 4.0.0
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: janis187 at us dot ibm dot com
CC: gcc-bugs at gcc dot gnu dot org
GCC target triplet: powerpc-unknown-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17961
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug middle-end/17961] ICE for operation on small vector with altivec enabled
2004-10-12 23:41 [Bug c/17961] New: ICE for operation on small vector with altivec enabled janis187 at us dot ibm dot com
@ 2004-10-14 13:34 ` pinskia at gcc dot gnu dot org
2004-10-14 13:37 ` pinskia at gcc dot gnu dot org
` (10 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-10-14 13:34 UTC (permalink / raw)
To: gcc-bugs
--
What |Removed |Added
----------------------------------------------------------------------------
Component|c |middle-end
Keywords| |ice-on-valid-code
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17961
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug middle-end/17961] ICE for operation on small vector with altivec enabled
2004-10-12 23:41 [Bug c/17961] New: ICE for operation on small vector with altivec enabled janis187 at us dot ibm dot com
2004-10-14 13:34 ` [Bug middle-end/17961] " pinskia at gcc dot gnu dot org
@ 2004-10-14 13:37 ` pinskia at gcc dot gnu dot org
2004-11-01 2:48 ` belyshev at lubercy dot com
` (9 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-10-14 13:37 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-10-14 13:37 -------
Hmm this works on ppc-darwin.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17961
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug middle-end/17961] ICE for operation on small vector with altivec enabled
2004-10-12 23:41 [Bug c/17961] New: ICE for operation on small vector with altivec enabled janis187 at us dot ibm dot com
2004-10-14 13:34 ` [Bug middle-end/17961] " pinskia at gcc dot gnu dot org
2004-10-14 13:37 ` pinskia at gcc dot gnu dot org
@ 2004-11-01 2:48 ` belyshev at lubercy dot com
2004-11-01 3:03 ` belyshev at lubercy dot com
` (8 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: belyshev at lubercy dot com @ 2004-11-01 2:48 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From belyshev at lubercy dot com 2004-11-01 02:48 -------
Confirmed with -DVECSIZE=2, here the backtrace:
----------------------------------------------------------------------------------------
Program received signal SIGSEGV, Segmentation fault.
0x08164577 in extract_fixed_bit_field (tmode=SImode, op0=0x0, offset=0,
bitsize=16, bitpos=16,
target=0x0, unsignedp=1) at ../../gcc/gcc/expmed.c:1674
1674 if (GET_CODE (op0) == SUBREG || REG_P (op0))
#0 0x08164577 in extract_fixed_bit_field (tmode=SImode, op0=0x0, offset=0,
bitsize=16, bitpos=16, target=0x0, unsignedp=1) at ../../gcc/gcc/expmed.c:1674
#1 0x08165021 in extract_split_bit_field (op0=0xb7b3c360, bitsize=32,
bitpos=16, unsignedp=0) at ../../gcc/gcc/expmed.c:1920
#2 0x081645f4 in extract_fixed_bit_field (tmode=SImode, op0=0xb7b3c360,
offset=0, bitsize=32, bitpos=16, target=0xb7b3c330, unsignedp=0) at
../../gcc/gcc/expmed.c:1678
#3 0x0816449d in extract_bit_field (str_rtx=0x9, bitsize=32, bitnum=0,
unsignedp=0, target=0xb7b3c330, mode=SImode, tmode=SImode) at
../../gcc/gcc/expmed.c:1622
#4 0x081795ba in expand_expr_real_1 (exp=0xb7b3b050, target=0xb7b3c330,
tmode=SImode, modifier=EXPAND_NORMAL, alt_rtl=0xbfffe808) at
../../gcc/gcc/expr.c:7038
#5 0x08177a24 in expand_expr_real (exp=0xb7b3b050, target=0xb7b3c330,
tmode=SImode, modifier=EXPAND_NORMAL, alt_rtl=0xbfffe808) at
../../gcc/gcc/expr.c:6205
#6 0x08173269 in store_expr (exp=0xb7b3b050, target=0xb7b3c330, call_param_p=0)
at ../../gcc/gcc/expr.c:3887
#7 0x08172ed3 in expand_assignment (to=0xb7b42f80, from=0xb7b3b050) at
../../gcc/gcc/expr.c:3766
#8 0x0817bbed in expand_expr_real_1 (exp=0xb7abd4ec, target=0x0,
tmode=VOIDmode, modifier=EXPAND_NORMAL, alt_rtl=0x0) at ../../gcc/gcc/expr.c:7987
#9 0x081779ee in expand_expr_real (exp=0xb7abd4ec, target=0xb7abc300,
tmode=VOIDmode, modifier=EXPAND_NORMAL, alt_rtl=0x0) at ../../gcc/gcc/expr.c:6199
#10 0x08298263 in expand_expr_stmt (exp=0xb7abd4ec) at expr.h:493
#11 0x082bda71 in expand_gimple_basic_block (bb=0xb7b42c98,
dump_file=0xb7b3b208) at ../../gcc/gcc/cfgexpand.c:1133
#12 0x082bdebb in tree_expand_cfg () at ../../gcc/gcc/cfgexpand.c:1306
#13 0x0809d4f4 in execute_one_pass (pass=0x84d4de0) at
../../gcc/gcc/tree-optimize.c:508
#14 0x0809d5bb in execute_pass_list (pass=0x84d4de0) at
../../gcc/gcc/tree-optimize.c:545
#15 0x0809d797 in tree_rest_of_compilation (fndecl=0xb7b425d0) at
../../gcc/gcc/tree-optimize.c:640
#16 0x08059682 in c_expand_body (fndecl=0xb7b425d0) at ../../gcc/gcc/c-decl.c:6363
#17 0x082e004c in cgraph_expand_function (node=0xb7b42744) at
../../gcc/gcc/cgraphunit.c:822
#18 0x082df625 in cgraph_assemble_pending_functions () at
../../gcc/gcc/cgraphunit.c:305
#19 0x082df727 in cgraph_finalize_function (decl=0xb7b425d0, nested=0 '\0') at
../../gcc/gcc/cgraphunit.c:388
#20 0x0805963a in finish_function () at ../../gcc/gcc/c-decl.c:6335
#21 0x0804a412 in yyparse () at c-parse.y:401
#22 0x0804f80e in c_parse_file () at c-parse.y:2908
#23 0x0807eebe in c_common_parse_file (set_yydebug=32) at
../../gcc/gcc/c-opts.c:1095
#24 0x082a0485 in compile_file () at ../../gcc/gcc/toplev.c:986
#25 0x082a1cde in do_compile () at ../../gcc/gcc/toplev.c:2074
#26 0x082a1d3c in toplev_main (argc=32, argv=0xbffff564) at
../../gcc/gcc/toplev.c:2106
#27 0x0808c1f8 in main (argc=32, argv=0x20) at ../../gcc/gcc/main.c:35
----------------------------------------------------------------------------------------
--
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed| |1
Known to fail| |4.0.0
Last reconfirmed|0000-00-00 00:00:00 |2004-11-01 02:48:55
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17961
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug middle-end/17961] ICE for operation on small vector with altivec enabled
2004-10-12 23:41 [Bug c/17961] New: ICE for operation on small vector with altivec enabled janis187 at us dot ibm dot com
` (2 preceding siblings ...)
2004-11-01 2:48 ` belyshev at lubercy dot com
@ 2004-11-01 3:03 ` belyshev at lubercy dot com
2005-02-01 0:10 ` pinskia at gcc dot gnu dot org
` (7 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: belyshev at lubercy dot com @ 2004-11-01 3:03 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From belyshev at lubercy dot com 2004-11-01 03:03 -------
3.4.3 rejects -DVECSIZE=2 code with "error: no vector mode with the size and
type specified could be found"
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17961
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug middle-end/17961] ICE for operation on small vector with altivec enabled
2004-10-12 23:41 [Bug c/17961] New: ICE for operation on small vector with altivec enabled janis187 at us dot ibm dot com
` (3 preceding siblings ...)
2004-11-01 3:03 ` belyshev at lubercy dot com
@ 2005-02-01 0:10 ` pinskia at gcc dot gnu dot org
2005-02-01 1:51 ` janis at gcc dot gnu dot org
` (6 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-02-01 0:10 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2005-02-01 00:10 -------
I think this has been fixed on the mainline but I don't know for sure.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17961
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug middle-end/17961] ICE for operation on small vector with altivec enabled
2004-10-12 23:41 [Bug c/17961] New: ICE for operation on small vector with altivec enabled janis187 at us dot ibm dot com
` (4 preceding siblings ...)
2005-02-01 0:10 ` pinskia at gcc dot gnu dot org
@ 2005-02-01 1:51 ` janis at gcc dot gnu dot org
2005-04-16 22:54 ` pinskia at gcc dot gnu dot org
` (5 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: janis at gcc dot gnu dot org @ 2005-02-01 1:51 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From janis at gcc dot gnu dot org 2005-02-01 01:51 -------
I just tried with today's mainline for powerpc64-unknown-linux-gnu and get the
same two ICEs as were reported originally. The 3.4 branch gives the error that
Serge noted for -DVECSIZE=2 and accepts -DVECSIZE=8.
This is a regression, but no one seems to expect generic vectors to actually work.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17961
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug middle-end/17961] ICE for operation on small vector with altivec enabled
2004-10-12 23:41 [Bug c/17961] New: ICE for operation on small vector with altivec enabled janis187 at us dot ibm dot com
` (5 preceding siblings ...)
2005-02-01 1:51 ` janis at gcc dot gnu dot org
@ 2005-04-16 22:54 ` pinskia at gcc dot gnu dot org
2005-06-09 12:03 ` aldyh at gcc dot gnu dot org
` (4 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-04-16 22:54 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2005-04-16 22:54 -------
This is weird in that it works on ppc-darwin, maybe the altivec ABI is changing something or the just
the ABI difference.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17961
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug middle-end/17961] ICE for operation on small vector with altivec enabled
2004-10-12 23:41 [Bug c/17961] New: ICE for operation on small vector with altivec enabled janis187 at us dot ibm dot com
` (6 preceding siblings ...)
2005-04-16 22:54 ` pinskia at gcc dot gnu dot org
@ 2005-06-09 12:03 ` aldyh at gcc dot gnu dot org
2005-06-10 17:04 ` cvs-commit at gcc dot gnu dot org
` (3 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: aldyh at gcc dot gnu dot org @ 2005-06-09 12:03 UTC (permalink / raw)
To: gcc-bugs
--
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |aldyh at gcc dot gnu dot org
|dot org |
Status|NEW |ASSIGNED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17961
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug middle-end/17961] ICE for operation on small vector with altivec enabled
2004-10-12 23:41 [Bug c/17961] New: ICE for operation on small vector with altivec enabled janis187 at us dot ibm dot com
` (7 preceding siblings ...)
2005-06-09 12:03 ` aldyh at gcc dot gnu dot org
@ 2005-06-10 17:04 ` cvs-commit at gcc dot gnu dot org
2005-06-10 17:06 ` aldyh at gcc dot gnu dot org
` (2 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: cvs-commit at gcc dot gnu dot org @ 2005-06-10 17:04 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From cvs-commit at gcc dot gnu dot org 2005-06-10 17:04 -------
Subject: Bug 17961
CVSROOT: /cvs/gcc
Module name: gcc
Changes by: aldyh@gcc.gnu.org 2005-06-10 17:04:09
Modified files:
gcc/config/rs6000: sysv4.h linux64.h
Added files:
gcc/testsuite/gcc.dg: simd-3.c
Log message:
PR 17961
* config/rs6000/sysv4.h (ROUND_TYPE_ALIGN): Remove.
* config/rs6000/linux64.h (ROUND_TYPE_ALIGN): Remove vector check.
* testsuite/gcc.dg/simd-3.c: New.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/rs6000/sysv4.h.diff?cvsroot=gcc&r1=1.163&r2=1.164
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/rs6000/linux64.h.diff?cvsroot=gcc&r1=1.78&r2=1.79
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/simd-3.c.diff?cvsroot=gcc&r1=NONE&r2=1.1
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17961
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug middle-end/17961] ICE for operation on small vector with altivec enabled
2004-10-12 23:41 [Bug c/17961] New: ICE for operation on small vector with altivec enabled janis187 at us dot ibm dot com
` (8 preceding siblings ...)
2005-06-10 17:04 ` cvs-commit at gcc dot gnu dot org
@ 2005-06-10 17:06 ` aldyh at gcc dot gnu dot org
2005-06-14 19:40 ` pinskia at gcc dot gnu dot org
2005-07-08 19:35 ` cvs-commit at gcc dot gnu dot org
11 siblings, 0 replies; 13+ messages in thread
From: aldyh at gcc dot gnu dot org @ 2005-06-10 17:06 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From aldyh at gcc dot gnu dot org 2005-06-10 17:06 -------
Fixed in mainline. Waiting for 4.0 freeze to be lifted to commit there.
http://gcc.gnu.org/ml/gcc-patches/2005-06/msg00959.html
--
What |Removed |Added
----------------------------------------------------------------------------
URL|http://gcc.gnu.org/ml/gcc- |http://gcc.gnu.org/ml/gcc-
|patches/2005- |patches/2005-
|06/msg00920.html |06/msg00959.html
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17961
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug middle-end/17961] ICE for operation on small vector with altivec enabled
2004-10-12 23:41 [Bug c/17961] New: ICE for operation on small vector with altivec enabled janis187 at us dot ibm dot com
` (9 preceding siblings ...)
2005-06-10 17:06 ` aldyh at gcc dot gnu dot org
@ 2005-06-14 19:40 ` pinskia at gcc dot gnu dot org
2005-07-08 19:35 ` cvs-commit at gcc dot gnu dot org
11 siblings, 0 replies; 13+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-06-14 19:40 UTC (permalink / raw)
To: gcc-bugs
--
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |4.0.2
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17961
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug middle-end/17961] ICE for operation on small vector with altivec enabled
2004-10-12 23:41 [Bug c/17961] New: ICE for operation on small vector with altivec enabled janis187 at us dot ibm dot com
` (10 preceding siblings ...)
2005-06-14 19:40 ` pinskia at gcc dot gnu dot org
@ 2005-07-08 19:35 ` cvs-commit at gcc dot gnu dot org
11 siblings, 0 replies; 13+ messages in thread
From: cvs-commit at gcc dot gnu dot org @ 2005-07-08 19:35 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From cvs-commit at gcc dot gnu dot org 2005-07-08 19:34 -------
Subject: Bug 17961
CVSROOT: /cvs/gcc
Module name: gcc
Branch: gcc-4_0-branch
Changes by: aldyh@gcc.gnu.org 2005-07-08 19:34:41
Modified files:
gcc : ChangeLog
gcc/config/rs6000: sysv4.h linux64.h
Added files:
gcc/testsuite/gcc.dg: simd-3.c
Log message:
PR 17961
* config/rs6000/sysv4.h (ROUND_TYPE_ALIGN): Remove.
* config/rs6000/linux64.h (ROUND_TYPE_ALIGN): Remove vector check.
* testsuite/gcc.dg/simd-3.c: New.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=2.7592.2.302&r2=2.7592.2.303
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/rs6000/sysv4.h.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=1.158&r2=1.158.4.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/rs6000/linux64.h.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=1.74.10.1&r2=1.74.10.2
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/simd-3.c.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=NONE&r2=1.1.8.1
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17961
^ permalink raw reply [flat|nested] 13+ messages in thread
end of thread, other threads:[~2005-07-08 19:35 UTC | newest]
Thread overview: 13+ messages (download: mbox.gz / follow: Atom feed)
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2004-10-12 23:41 [Bug c/17961] New: ICE for operation on small vector with altivec enabled janis187 at us dot ibm dot com
2004-10-14 13:34 ` [Bug middle-end/17961] " pinskia at gcc dot gnu dot org
2004-10-14 13:37 ` pinskia at gcc dot gnu dot org
2004-11-01 2:48 ` belyshev at lubercy dot com
2004-11-01 3:03 ` belyshev at lubercy dot com
2005-02-01 0:10 ` pinskia at gcc dot gnu dot org
2005-02-01 1:51 ` janis at gcc dot gnu dot org
2005-04-16 22:54 ` pinskia at gcc dot gnu dot org
2005-06-09 12:03 ` aldyh at gcc dot gnu dot org
2005-06-10 17:04 ` cvs-commit at gcc dot gnu dot org
2005-06-10 17:06 ` aldyh at gcc dot gnu dot org
2005-06-14 19:40 ` pinskia at gcc dot gnu dot org
2005-07-08 19:35 ` cvs-commit at gcc dot gnu dot org
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