https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107934
Bug ID: 107934
Summary: ICE: SIGSEGV in immediate_operand (recog.cc:1618) with
-O2 -mtune=knl -ffinite-math-only and __bf16
Product: gcc
Version: 13.0
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: x86_64-pc-linux-gnu
Created attachment 53991
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=53991&action=edit
reduced testcase
Compiler output:
$ x86_64-pc-linux-gnu-gcc -O2 -mtune=knl -ffinite-math-only testcase.c -wrapper
valgrind,-q
==28622== Invalid read of size 1
==28622== at 0x12E3F8B: immediate_operand(rtx_def*, machine_mode)
(recog.cc:1618)
==28622== by 0x1FB1F98: insn_default_latency_slm(rtx_insn*) (i386.md:17163)
==28622== by 0x2406941: insn_sched_cost(rtx_insn*) (haifa-sched.cc:1421)
==28622== by 0x240AF22: dep_cost_1(_dep*, unsigned int)
(haifa-sched.cc:1474)
==28622== by 0x240CBE1: dep_cost (haifa-sched.cc:1510)
==28622== by 0x240CBE1: priority(rtx_insn*, bool) [clone .part.0]
(haifa-sched.cc:1661)
==28622== by 0x240D4C2: priority (haifa-sched.cc:1593)
==28622== by 0x240D4C2: set_priorities(rtx_insn*, rtx_insn*)
(haifa-sched.cc:7166)
==28622== by 0x13390D2: compute_priorities() (sched-rgn.cc:3025)
==28622== by 0x133BE05: schedule_region (sched-rgn.cc:3139)
==28622== by 0x133BE05: schedule_insns() [clone .part.0] (sched-rgn.cc:3527)
==28622== by 0x133C4BD: schedule_insns (sched-rgn.cc:3513)
==28622== by 0x133C4BD: rest_of_handle_sched2 (sched-rgn.cc:3751)
==28622== by 0x133C4BD: (anonymous
namespace)::pass_sched2::execute(function*) (sched-rgn.cc:3890)
==28622== by 0x1294BDA: execute_one_pass(opt_pass*) (passes.cc:2644)
==28622== by 0x12954CF: execute_pass_list_1(opt_pass*) (passes.cc:2753)
==28622== by 0x12954E1: execute_pass_list_1(opt_pass*) (passes.cc:2754)
==28622== Address 0xabababababababad is not stack'd, malloc'd or (recently)
free'd
==28622==
during RTL pass: sched2
testcase.c: In function 'foo':
testcase.c:5:1: internal compiler error: Segmentation fault
5 | }
| ^
0x139d15f crash_signal
/repo/gcc-trunk/gcc/toplev.cc:314
0x12e3f8b immediate_operand(rtx_def*, machine_mode)
/repo/gcc-trunk/gcc/recog.cc:1618
0x1fb1f98 insn_default_latency_slm(rtx_insn*)
/repo/gcc-trunk/gcc/config/i386/i386.md:17163
0x2406941 insn_sched_cost(rtx_insn*)
/repo/gcc-trunk/gcc/haifa-sched.cc:1421
0x240af22 dep_cost_1(_dep*, unsigned int)
/repo/gcc-trunk/gcc/haifa-sched.cc:1474
0x240cbe1 dep_cost(_dep*)
/repo/gcc-trunk/gcc/haifa-sched.cc:1510
0x240cbe1 priority
/repo/gcc-trunk/gcc/haifa-sched.cc:1661
0x240d4c2 priority
/repo/gcc-trunk/gcc/haifa-sched.cc:1593
0x240d4c2 set_priorities(rtx_insn*, rtx_insn*)
/repo/gcc-trunk/gcc/haifa-sched.cc:7166
0x13390d2 compute_priorities()
/repo/gcc-trunk/gcc/sched-rgn.cc:3025
0x133be05 schedule_region
/repo/gcc-trunk/gcc/sched-rgn.cc:3139
0x133be05 schedule_insns()
/repo/gcc-trunk/gcc/sched-rgn.cc:3527
0x133c4bd schedule_insns()
/repo/gcc-trunk/gcc/sched-rgn.cc:3513
0x133c4bd rest_of_handle_sched2
/repo/gcc-trunk/gcc/sched-rgn.cc:3751
0x133c4bd execute
/repo/gcc-trunk/gcc/sched-rgn.cc:3890
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
$ 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-r13-4410-20221130163048-g7c01d029fca-checking-yes-rtl-df-extra-nobootstrap-amd64/bin/../libexec/gcc/x86_64-pc-linux-gnu/13.0.0/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 --disable-libstdcxx-pch
--prefix=/repo/gcc-trunk//binary-trunk-r13-4410-20221130163048-g7c01d029fca-checking-yes-rtl-df-extra-nobootstrap-amd64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 13.0.0 20221130 (experimental) (GCC)
