https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114312
Bug ID: 114312
Summary: ICE: SIGSEGV: infinite recursion in chrec_fold_plus_1
(tree-chrec.cc:336) at -O3 with _BitInt()
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: middle-end
Assignee: unassigned at gcc dot gnu.org
Reporter: zsojka at seznam dot cz
CC: jakub at gcc dot gnu.org
Target Milestone: ---
Host: x86_64-pc-linux-gnu
Target: x86_64-pc-linux-gnu
Created attachment 57673
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=57673&action=edit
reduced testcase
Compiler output:
$ x86_64-pc-linux-gnu-gcc -O3 testcase.c -wrapper gdb,--args
GNU gdb (Gentoo 14.1 vanilla) 14.1
...
(gdb) r
Starting program:
/repo/gcc-trunk/binary-trunk-r14-9425-20240311112226-g119f5ae0455-checking-yes-rtl-df-extra-nobootstrap-amd64/libexec/gcc/x86_64-pc-linux-gnu/14.0.1/cc1
-quiet -iprefix
/repo/gcc-trunk/binary-trunk-r14-9425-20240311112226-g119f5ae0455-checking-yes-rtl-df-extra-nobootstrap-amd64/bin/../lib/gcc/x86_64-pc-linux-gnu/14.0.1/
testcase.c -quiet -dumpdir a- -dumpbase testcase.c -dumpbase-ext .c
-mtune=generic -march=x86-64 -O3 -o /tmp/ccMD8BgN.s
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
Program received signal SIGSEGV, Segmentation fault.
ggc_internal_alloc (size=size@entry=32, f=f@entry=0x0, s=s@entry=0,
n=n@entry=1) at /repo/gcc-trunk/gcc/ggc-page.cc:1401
1401 memset (result, 0xaf, object_size);
(gdb) bt
#0 ggc_internal_alloc (size=size@entry=32, f=f@entry=0x0, s=s@entry=0,
n=n@entry=1) at /repo/gcc-trunk/gcc/ggc-page.cc:1401
#1 0x0000000001820695 in ggc_internal_alloc (s=32) at
/repo/gcc-trunk/gcc/ggc.h:136
#2 ggc_alloc_tree_node_stat (s=32) at /repo/gcc-trunk/gcc/ggc.h:319
#3 build1 (code=code@entry=NOP_EXPR, type=type@entry=0x7ffff75b1888,
node=node@entry=0x7ffff75ea870) at /repo/gcc-trunk/gcc/tree.cc:5010
#4 0x000000000110e71d in build1_loc (arg1=0x7ffff75ea870, type=0x7ffff75b1888,
code=NOP_EXPR, loc=0) at /repo/gcc-trunk/gcc/tree.h:4740
#5 fold_build1_loc (loc=0, code=NOP_EXPR, type=0x7ffff75b1888,
op0=0x7ffff75ea870) at /repo/gcc-trunk/gcc/fold-const.cc:14144
#6 0x00000000027db3a1 in chrec_convert_1 (type=0x7ffff75b1888,
chrec=0x7ffff75ea870, at_stmt=0x0, use_overflow_semantics=<optimized out>,
from=0x0)
at /repo/gcc-trunk/gcc/tree-chrec.cc:1601
#7 0x00000000027dd2b4 in chrec_convert (from=0x0, use_overflow_semantics=true,
at_stmt=0x0, chrec=0x7ffff75ea870, type=0x7ffff75b1888) at
/repo/gcc-trunk/gcc/tree-chrec.cc:1655
#8 chrec_fold_plus_1 (op1=<optimized out>, op0=0x7ffff75ea870,
type=0x7ffff7422000, code=MINUS_EXPR) at /repo/gcc-trunk/gcc/tree-chrec.cc:336
#9 chrec_fold_plus_1 (code=MINUS_EXPR, type=0x7ffff7422000,
op0=0x7ffff75ea870, op1=<optimized out>) at
/repo/gcc-trunk/gcc/tree-chrec.cc:233
#10 0x00000000027dcfd5 in chrec_fold_plus_1 (op1=<optimized out>,
op0=0x7ffff5f4e900, type=0x7ffff75b1888, code=MINUS_EXPR) at
/repo/gcc-trunk/gcc/tree-chrec.cc:336
#11 chrec_fold_plus_1 (code=MINUS_EXPR, type=0x7ffff75b1888,
op0=0x7ffff5f4e900, op1=<optimized out>) at
/repo/gcc-trunk/gcc/tree-chrec.cc:233
#12 0x00000000027dcfd5 in chrec_fold_plus_1 (op1=<optimized out>,
op0=0x7ffff75ea870, type=0x7ffff7422000, code=MINUS_EXPR) at
/repo/gcc-trunk/gcc/tree-chrec.cc:336
#13 chrec_fold_plus_1 (code=MINUS_EXPR, type=0x7ffff7422000,
op0=0x7ffff75ea870, op1=<optimized out>) at
/repo/gcc-trunk/gcc/tree-chrec.cc:233
#14 0x00000000027dcfd5 in chrec_fold_plus_1 (op1=<optimized out>,
op0=0x7ffff5f4e8c0, type=0x7ffff75b1888, code=MINUS_EXPR) at
/repo/gcc-trunk/gcc/tree-chrec.cc:336
#15 chrec_fold_plus_1 (code=MINUS_EXPR, type=0x7ffff75b1888,
op0=0x7ffff5f4e8c0, op1=<optimized out>) at
/repo/gcc-trunk/gcc/tree-chrec.cc:233
#16 0x00000000027dcfd5 in chrec_fold_plus_1 (op1=<optimized out>,
op0=0x7ffff75ea870, type=0x7ffff7422000, code=MINUS_EXPR) at
/repo/gcc-trunk/gcc/tree-chrec.cc:336
#17 chrec_fold_plus_1 (code=MINUS_EXPR, type=0x7ffff7422000,
op0=0x7ffff75ea870, op1=<optimized out>) at
/repo/gcc-trunk/gcc/tree-chrec.cc:233
#18 0x00000000027dcfd5 in chrec_fold_plus_1 (op1=<optimized out>,
op0=0x7ffff5f4e880, type=0x7ffff75b1888, code=MINUS_EXPR) at
/repo/gcc-trunk/gcc/tree-chrec.cc:336
#19 chrec_fold_plus_1 (code=MINUS_EXPR, type=0x7ffff75b1888,
op0=0x7ffff5f4e880, op1=<optimized out>) at
/repo/gcc-trunk/gcc/tree-chrec.cc:233
...
$ x86_64-pc-linux-gnu-gcc -v
Using built-in specs.
COLLECT_GCC=/repo/gcc-trunk/binary-latest-amd64/bin/x86_64-pc-linux-gnu-gcc
COLLECT_LTO_WRAPPER=/repo/gcc-trunk/binary-trunk-r14-9425-20240311112226-g119f5ae0455-checking-yes-rtl-df-extra-nobootstrap-amd64/bin/../libexec/gcc/x86_64-pc-linux-gnu/14.0.1/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: /repo/gcc-trunk//configure --enable-languages=c,c++
--enable-valgrind-annotations --disable-nls --enable-checking=yes,rtl,df,extra
--disable-bootstrap --with-cloog --with-ppl --with-isl
--build=x86_64-pc-linux-gnu --host=x86_64-pc-linux-gnu
--target=x86_64-pc-linux-gnu --with-ld=/usr/bin/x86_64-pc-linux-gnu-ld
--with-as=/usr/bin/x86_64-pc-linux-gnu-as --enable-libsanitizer
--disable-libstdcxx-pch
--prefix=/repo/gcc-trunk//binary-trunk-r14-9425-20240311112226-g119f5ae0455-checking-yes-rtl-df-extra-nobootstrap-amd64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 14.0.1 20240311 (experimental) (GCC)
