https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69886
Bug ID: 69886
Summary: ICE: in process_insert_insn, at gcse.c:1976 with
--param=gcse-unrestricted-cost=0 @ aarch64
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: zsojka at seznam dot cz
Target Milestone: ---
Host: x86_64-pc-linux-gnu
Target: aarch64-unknown-linux-gnu
Build: x86_64-pc-linux-gnu
Created attachment 37745
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=37745&action=edit
reduced testcase
Compiler output:
$ aarch64-unknown-linux-gnu-gcc -v
Using built-in specs.
COLLECT_GCC=/repo/gcc-trunk/binary-latest-aarch64/bin/aarch64-unknown-linux-gnu-gcc
COLLECT_LTO_WRAPPER=/repo/gcc-trunk/binary-trunk-233588-checking-yes-rtl-df-nographite-aarch64/bin/../libexec/gcc/aarch64-unknown-linux-gnu/6.0.0/lto-wrapper
Target: aarch64-unknown-linux-gnu
Configured with: /repo/gcc-trunk//configure --enable-languages=c,c++
--enable-checking=yes,rtl,df --without-cloog --without-ppl --without-isl
--build=x86_64-pc-linux-gnu --host=x86_64-pc-linux-gnu
--target=aarch64-unknown-linux-gnu
--with-ld=/usr/bin/aarch64-unknown-linux-gnu-ld
--with-as=/usr/bin/aarch64-unknown-linux-gnu-as
--with-sysroot=/usr/aarch64-unknown-linux-gnu --disable-libstdcxx-pch
--prefix=/repo/gcc-trunk//binary-trunk-233588-checking-yes-rtl-df-nographite-aarch64
Thread model: posix
gcc version 6.0.0 20160220 (experimental) (GCC)
$ aarch64-unknown-linux-gnu-gcc -Os --param=gcse-unrestricted-cost=0 testcase.c
testcase.c: In function 'foo':
testcase.c:10:1: internal compiler error: in process_insert_insn, at
gcse.c:1976
}
^
0x871150 process_insert_insn
/repo/gcc-trunk/gcc/gcse.c:1976
0x871b24 insert_insn_end_basic_block
/repo/gcc-trunk/gcc/gcse.c:1998
0x8743c8 hoist_code
/repo/gcc-trunk/gcc/gcse.c:3297
0x8743c8 one_code_hoisting_pass
/repo/gcc-trunk/gcc/gcse.c:3527
0x8743c8 execute_rtl_hoist
/repo/gcc-trunk/gcc/gcse.c:4019
0x8743c8 execute
/repo/gcc-trunk/gcc/gcse.c:4100
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.
Only aarch64 seems to fail on this testcase.
Tested revisions:
trunk r233588 - ICE
5-branch r233581 - ICE
4_9-branch r233576 - ICE
4_8-branch r224828 - ICE
