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).
