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* [Bug target/57431] New: ICE in simplify_const_unary_operation vld1_dup_s64/vst1_s64
@ 2013-05-27 11:50 christophe.lyon at st dot com
2013-08-02 15:16 ` [Bug target/57431] " rearnsha at gcc dot gnu.org
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: christophe.lyon at st dot com @ 2013-05-27 11:50 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57431
Bug ID: 57431
Summary: ICE in simplify_const_unary_operation
vld1_dup_s64/vst1_s64
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: christophe.lyon at st dot com
Created attachment 30204
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=30204&action=edit
testcase
The attached program makes GCC crash when using -O1, -O2 or -O3. Compiles fine
with -O0.
$ arm-none-linux-gnueabi-gcc -mcpu=cortex-a9 -mfloat-abi=softfp -mfpu=neon -O1
-c myref_vld1_dup.c
myref_vld1_dup.c: In function 'exec_vld1_dup':
myref_vld1_dup.c:16:1: internal compiler error: in
simplify_const_unary_operation, at simplify-rtx.c:1503
}
^
0xa768aa simplify_const_unary_operation(rtx_code, machine_mode, rtx_def*,
machine_mode)
/work1/lyon/Work/ARM/Linaro/sources/gcc-fsf/trunk/gcc/simplify-rtx.c:1503
0xa743b4 simplify_unary_operation(rtx_code, machine_mode, rtx_def*,
machine_mode)
/work1/lyon/Work/ARM/Linaro/sources/gcc-fsf/trunk/gcc/simplify-rtx.c:791
0xffc467 fold_rtx
/work1/lyon/Work/ARM/Linaro/sources/gcc-fsf/trunk/gcc/cse.c:3287
0xfff4d0 cse_insn
/work1/lyon/Work/ARM/Linaro/sources/gcc-fsf/trunk/gcc/cse.c:4573
0x1004e2e cse_extended_basic_block
/work1/lyon/Work/ARM/Linaro/sources/gcc-fsf/trunk/gcc/cse.c:6405
0x10053ca cse_main
/work1/lyon/Work/ARM/Linaro/sources/gcc-fsf/trunk/gcc/cse.c:6583
0x10070b1 rest_of_handle_cse
/work1/lyon/Work/ARM/Linaro/sources/gcc-fsf/trunk/gcc/cse.c:7433
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug target/57431] ICE in simplify_const_unary_operation vld1_dup_s64/vst1_s64
2013-05-27 11:50 [Bug target/57431] New: ICE in simplify_const_unary_operation vld1_dup_s64/vst1_s64 christophe.lyon at st dot com
@ 2013-08-02 15:16 ` rearnsha at gcc dot gnu.org
2013-08-08 13:48 ` rearnsha at gcc dot gnu.org
2013-09-05 12:31 ` clyon at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: rearnsha at gcc dot gnu.org @ 2013-08-02 15:16 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57431
Richard Earnshaw <rearnsha at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2013-08-02
Ever confirmed|0 |1
--- Comment #1 from Richard Earnshaw <rearnsha at gcc dot gnu.org> ---
Confirmed.
vld1_dup_[su]64() are degenerate into simple load operations and shouldn't be
using vec_duplicate at all.
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug target/57431] ICE in simplify_const_unary_operation vld1_dup_s64/vst1_s64
2013-05-27 11:50 [Bug target/57431] New: ICE in simplify_const_unary_operation vld1_dup_s64/vst1_s64 christophe.lyon at st dot com
2013-08-02 15:16 ` [Bug target/57431] " rearnsha at gcc dot gnu.org
@ 2013-08-08 13:48 ` rearnsha at gcc dot gnu.org
2013-09-05 12:31 ` clyon at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: rearnsha at gcc dot gnu.org @ 2013-08-08 13:48 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57431
Richard Earnshaw <rearnsha at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
Target Milestone|--- |4.9.0
--- Comment #2 from Richard Earnshaw <rearnsha at gcc dot gnu.org> ---
Fixed on trunk with:
PR target/57431
* arm/neon.md (neon_vld1_dupdi): New expand pattern.
(neon_vld1_dup<mode> VD iterator): Iterate over VD not VDX.
Committed to trunk as revision r201599.
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug target/57431] ICE in simplify_const_unary_operation vld1_dup_s64/vst1_s64
2013-05-27 11:50 [Bug target/57431] New: ICE in simplify_const_unary_operation vld1_dup_s64/vst1_s64 christophe.lyon at st dot com
2013-08-02 15:16 ` [Bug target/57431] " rearnsha at gcc dot gnu.org
2013-08-08 13:48 ` rearnsha at gcc dot gnu.org
@ 2013-09-05 12:31 ` clyon at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: clyon at gcc dot gnu.org @ 2013-09-05 12:31 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57431
--- Comment #3 from clyon at gcc dot gnu.org ---
Author: clyon
Date: Thu Sep 5 12:31:03 2013
New Revision: 202277
URL: http://gcc.gnu.org/viewcvs?rev=202277&root=gcc&view=rev
Log:
2013-09-05 Christophe Lyon <christophe.lyon@linaro.org>
Backport from trunk r201599.
2013-08-08 Richard Earnshaw <rearnsha@arm.com>
PR target/57431
* arm/neon.md (neon_vld1_dupdi): New expand pattern.
(neon_vld1_dup<mode> VD iterator): Iterate over VD not VDX.
Modified:
branches/linaro/gcc-4_8-branch/ (props changed)
branches/linaro/gcc-4_8-branch/gcc/ChangeLog.linaro
branches/linaro/gcc-4_8-branch/gcc/config/arm/neon.md
Propchange: branches/linaro/gcc-4_8-branch/
('svn:mergeinfo' modified)
^ permalink raw reply [flat|nested] 4+ messages in thread
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2013-05-27 11:50 [Bug target/57431] New: ICE in simplify_const_unary_operation vld1_dup_s64/vst1_s64 christophe.lyon at st dot com
2013-08-02 15:16 ` [Bug target/57431] " rearnsha at gcc dot gnu.org
2013-08-08 13:48 ` rearnsha at gcc dot gnu.org
2013-09-05 12:31 ` clyon at gcc dot gnu.org
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