https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113506
Bug ID: 113506
Summary: ICE: RTL check: expected elt 2 type 'B', have '0' (rtx
barrier) in BLOCK_FOR_INSN, at rtl.h:1495 with -Os
-fno-tree-coalesce-vars -finline-stringops
Product: gcc
Version: 14.0
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
Target Milestone: ---
Host: x86_64-pc-linux-gnu
Target: riscv64-unknown-linux-gnu
Created attachment 57161
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=57161&action=edit
reduced testcase (from gcc.dg/torture/pr69886.c)
RTL checking might need to be enabled.
Compiler output:
$ riscv64-unknown-linux-gnu-gcc -Os -fno-tree-coalesce-vars -finline-stringops
testcase.c
during RTL pass: expand
testcase.c: In function 'foo':
testcase.c:12:1: internal compiler error: RTL check: expected elt 2 type 'B',
have '0' (rtx barrier) in BLOCK_FOR_INSN, at rtl.h:1495
12 | }
| ^
0xad3d4c rtl_check_failed_type1(rtx_def const*, int, int, char const*, int,
char const*)
/repo/gcc-trunk/gcc/rtl.cc:751
0xa20a79 BLOCK_FOR_INSN(rtx_def*)
/repo/gcc-trunk/gcc/rtl.h:1495
0xa242a6 BLOCK_FOR_INSN(rtx_def*)
/repo/gcc-trunk/gcc/emit-rtl.cc:4384
0xa242a6 set_block_for_insn(rtx_insn*, basic_block_def*)
/repo/gcc-trunk/gcc/rtl.h:1500
0xa242a6 add_insn_before(rtx_insn*, rtx_insn*, basic_block_def*)
/repo/gcc-trunk/gcc/emit-rtl.cc:4379
0x127efd0 emit_pattern_before_noloc
/repo/gcc-trunk/gcc/emit-rtl.cc:4647
0x11a0d04 commit_one_edge_insertion(edge_def*)
/repo/gcc-trunk/gcc/cfgrtl.cc:2071
0x11a6011 commit_edge_insertions()
/repo/gcc-trunk/gcc/cfgrtl.cc:2133
0x11866e0 execute
/repo/gcc-trunk/gcc/cfgexpand.cc:6956
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.
$ riscv64-unknown-linux-gnu-gcc -v
Using built-in specs.
COLLECT_GCC=/repo/gcc-trunk/binary-latest-riscv64/bin/riscv64-unknown-linux-gnu-gcc
COLLECT_LTO_WRAPPER=/repo/gcc-trunk/binary-trunk-r14-8284-20240119180625-g54519030b05-checking-yes-rtl-df-extra-riscv64/bin/../libexec/gcc/riscv64-unknown-linux-gnu/14.0.1/lto-wrapper
Target: riscv64-unknown-linux-gnu
Configured with: /repo/gcc-trunk//configure --enable-languages=c,c++
--enable-valgrind-annotations --disable-nls --enable-checking=yes,rtl,df,extra
--with-cloog --with-ppl --with-isl --with-isa-spec=2.2
--with-sysroot=/usr/riscv64-unknown-linux-gnu --build=x86_64-pc-linux-gnu
--host=x86_64-pc-linux-gnu --target=riscv64-unknown-linux-gnu
--with-ld=/usr/bin/riscv64-unknown-linux-gnu-ld
--with-as=/usr/bin/riscv64-unknown-linux-gnu-as --disable-multilib
--disable-libstdcxx-pch
--prefix=/repo/gcc-trunk//binary-trunk-r14-8284-20240119180625-g54519030b05-checking-yes-rtl-df-extra-riscv64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 14.0.1 20240119 (experimental) (GCC)
