https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70219
Bug ID: 70219
Summary: [6 Regression] ICE: in delete_move_and_clobber, at
lra-constraints.c:5864 with -O2
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: rtl-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: zsojka at seznam dot cz
CC: vmakarov at gcc dot gnu.org
Target Milestone: ---
Target: x86_64-pc-linux-gnu
The failing assert has been added in a fix of PR69614.
Compiler output:
$ gcc -O2 testcase.c
testcase.c: In function 'foo':
testcase.c:5:1: note: The ABI for passing parameters with 32-byte alignment has
changed in GCC 4.6
foo(int u32_0, i128 u128_0, int u16_1, int u64_1, v8si v32u128_0, v8si
v32u32_1, v8si v32u128_1)
^~~
testcase.c:5:1: warning: AVX vector argument without AVX enabled changes the
ABI [-Wpsabi]
testcase.c:11:1: internal compiler error: in delete_move_and_clobber, at
lra-constraints.c:5864
}
^
0xa08790 delete_move_and_clobber
/repo/gcc-trunk/gcc/lra-constraints.c:5864
0xa166e8 remove_inheritance_pseudos
/repo/gcc-trunk/gcc/lra-constraints.c:5943
0xa166e8 lra_undo_inheritance()
/repo/gcc-trunk/gcc/lra-constraints.c:6231
0x9fe567 lra(_IO_FILE*)
/repo/gcc-trunk/gcc/lra.c:2333
0x9a4c79 do_reload
/repo/gcc-trunk/gcc/ira.c:5398
0x9a4c79 execute
/repo/gcc-trunk/gcc/ira.c:5582
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.
$ gcc -v
Using built-in specs.
COLLECT_GCC=/repo/gcc-trunk/binary-latest/bin/gcc
COLLECT_LTO_WRAPPER=/repo/gcc-trunk/binary-trunk-234167-checking-yes-rtl-df-nographite/bin/../libexec/gcc/x86_64-pc-linux-gnu/6.0.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: /repo/gcc-trunk//configure --enable-languages=c,c++
--enable-checking=yes,rtl,df --without-cloog --without-ppl --without-isl
--disable-libstdcxx-pch
--prefix=/repo/gcc-trunk//binary-trunk-234167-checking-yes-rtl-df-nographite
Thread model: posix
gcc version 6.0.0 20160313 (experimental) (GCC)
