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* [Bug middle-end/64413] New: [AArch64/ARMv7] ICE in copy_to_mode_reg, at explow.c:654
@ 2014-12-26 17:20 david.abdurachmanov at gmail dot com
2014-12-28 20:49 ` [Bug middle-end/64413] " david.abdurachmanov at gmail dot com
0 siblings, 1 reply; 2+ messages in thread
From: david.abdurachmanov at gmail dot com @ 2014-12-26 17:20 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64413
Bug ID: 64413
Summary: [AArch64/ARMv7] ICE in copy_to_mode_reg, at
explow.c:654
Product: gcc
Version: 4.9.2
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
Assignee: unassigned at gcc dot gnu.org
Reporter: david.abdurachmanov at gmail dot com
Created attachment 34338
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=34338&action=edit
testcase (AArch64, Fortran)
OpenLoops 1.0.1 package is failing to compile on AArch64 with GCC 4.9.{1,2}
there gfortran ICE'd:
test.f90: In function 'vert_aq_s':
test.f90:38:0: internal compiler error: in copy_to_mode_reg, at explow.c:654
Jout_S%j(1) = 0
^
I managed to extract a minimal testcase (testcase.f90). It should be compiled
like this:
gfortran -o testcase.os -c -ffixed-line-length-0 -ffree-line-length-0 -O0 -O0
-fPIC testcase.f90
A similar ICE was recently posted (Oct 20) with GCC 4.9.1, ARMv7, C++ on
stackoverflow:
http://stackoverflow.com/questions/26474507/compiler-crash-with-arm-neon-datatypes
I.e., the ICE point to the same "copy_to_mode_reg, at explow.c:654". Might be
related.
Have not tested with GCC 5.0 (trunk).
^ permalink raw reply [flat|nested] 2+ messages in thread
* [Bug middle-end/64413] [AArch64/ARMv7] ICE in copy_to_mode_reg, at explow.c:654
2014-12-26 17:20 [Bug middle-end/64413] New: [AArch64/ARMv7] ICE in copy_to_mode_reg, at explow.c:654 david.abdurachmanov at gmail dot com
@ 2014-12-28 20:49 ` david.abdurachmanov at gmail dot com
0 siblings, 0 replies; 2+ messages in thread
From: david.abdurachmanov at gmail dot com @ 2014-12-28 20:49 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64413
David Abdurachmanov <david.abdurachmanov at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
CC| |jakub at redhat dot com
Resolution|--- |DUPLICATE
--- Comment #1 from David Abdurachmanov <david.abdurachmanov at gmail dot com> ---
Worked fine with trunk. Bisecting showed that
5d098163f7aad3bed4124abc929983a620de2a82 / 216765 fixed the issue. Thus it's a
duplicate of PR 63442 ([AArch64] ICE with ubsan/overflow-int128.c test).
Applying the patch on top of GCC 4.9.1 resolved the ICE on OpenLoops 1.0.1
package.
The patch is one liner and resolves an ICE on valid code. Could I suggest RM to
have it backported for 4.9.3 release?
*** This bug has been marked as a duplicate of bug 63442 ***
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2014-12-26 17:20 [Bug middle-end/64413] New: [AArch64/ARMv7] ICE in copy_to_mode_reg, at explow.c:654 david.abdurachmanov at gmail dot com
2014-12-28 20:49 ` [Bug middle-end/64413] " david.abdurachmanov at gmail dot com
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