https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63823
Bug ID: 63823
Summary: [5.0 Regression] MIPS will not build due to LRA ICE
with 64 bit ABI
Product: gcc
Version: 5.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: rtl-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: sje at gcc dot gnu.org
My x86 to MIPS build is failing when the new compiler cannot compile a file
from glibc. A cut-down preprocessed test case is attached. It only fails with
the 64 bit ABI, with LRA, and with -O2 -g.
% install-mips-linux-gnu/bin/mips-linux-gnu-gcc -mips64r2 -mabi=64 -O2 -g -c
x.c
x.c: In function '__ieee754_jnl':
x.c:73:1: internal compiler error: in alter_subregs, at lra-spills.c:633
}
^
0x8ddafa alter_subregs
/scratch/sellcey/repos/ice/src/gcc/gcc/lra-spills.c:633
0x8df1fd lra_final_code_change()
/scratch/sellcey/repos/ice/src/gcc/gcc/lra-spills.c:739
0x8c48fb lra(_IO_FILE*)
/scratch/sellcey/repos/ice/src/gcc/gcc/lra.c:2358
0x880729 do_reload
/scratch/sellcey/repos/ice/src/gcc/gcc/ira.c:5380
0x880729 execute
/scratch/sellcey/repos/ice/src/gcc/gcc/ira.c:5550
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.
