https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98383
Bug ID: 98383
Summary: internal compiler error: in make_decl_rtl, at
varasm.c:1342
Product: gcc
Version: 10.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: cebtenzzre at gmail dot com
Target Milestone: ---
Created attachment 49803
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=49803&action=edit
Preprocessed source that triggers the error
g++ crashes with an internal compiler error while compiling a version of oneDNN
used by ideep. Specifically, ref_shuffle.cpp at commit
7aed236906b1f7a05c0917e5257a1af05e9ff683
(https://github.com/oneapi-src/oneDNN/blob/7aed236906b1f7a05c0917e5257a1af05e9ff683/src/cpu/ref_shuffle.cpp).
I have not attempted to compile the latest version of this file. Preprocessed
source is gzipped and attached as ref_shuffle.ii.gz.
-fopenmp is necessary to reproduce the crash. It occurs with -O1 (but not -O0,
-O2, or -O3), with -fsanitize=address -O1 (same line in the error message), and
with -fsanitize=address and either -O2 or -O3 (different line in the error
message).
Output:
$ g++ -c ref_shuffle.ii -fopenmp -O1
during RTL pass: expand
../third_party/ideep/mkl-dnn/src/cpu/ref_shuffle.cpp: In function
‘_ZNK4dnnl4impl3cpu13ref_shuffle_tILi4EE8execute_IL17dnnl_format_tag_t112EEEvRKNS0_10exec_ctx_tE._omp_fn.0’:
../third_party/ideep/mkl-dnn/src/cpu/ref_shuffle.cpp:69:9: internal compiler
error: in make_decl_rtl, at varasm.c:1342
69 | #pragma omp parallel for collapse(3) schedule(static)
| ^~~
Please submit a full bug report,
with preprocessed source if appropriate.
See <https://bugs.archlinux.org/> for instructions.
$ g++ -c ref_shuffle.ii -fopenmp -fsanitize=address -O2
during RTL pass: expand
../third_party/ideep/mkl-dnn/src/cpu/ref_shuffle.cpp: In function
‘_ZNK4dnnl4impl3cpu13ref_shuffle_tILi4EE8execute_IL17dnnl_format_tag_t112EEEvRKNS0_10exec_ctx_tE._omp_fn.0’:
../third_party/ideep/mkl-dnn/src/cpu/ref_shuffle.cpp:76:56: internal compiler
error: in make_decl_rtl, at varasm.c:1342
76 | for (int cc = 0; cc < nstl::min(blksize, C - cb); ++cc) {
| ~~^~~~
Please submit a full bug report,
with preprocessed source if appropriate.
See <https://bugs.archlinux.org/> for instructions.
$ g++ -v
Using built-in specs.
COLLECT_GCC=g++
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-pc-linux-gnu/10.2.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: /build/gcc/src/gcc/configure --prefix=/usr --libdir=/usr/lib
--libexecdir=/usr/lib --mandir=/usr/share/man --infodir=/usr/share/info
--with-bugurl=https://bugs.archlinux.org/
--enable-languages=c,c++,ada,fortran,go,lto,objc,obj-c++,d --with-isl
--with-linker-hash-style=gnu --with-system-zlib --enable-__cxa_atexit
--enable-cet=auto --enable-checking=release --enable-clocale=gnu
--enable-default-pie --enable-default-ssp --enable-gnu-indirect-function
--enable-gnu-unique-object --enable-install-libiberty --enable-linker-build-id
--enable-lto --enable-multilib --enable-plugin --enable-shared
--enable-threads=posix --disable-libssp --disable-libstdcxx-pch
--disable-libunwind-exceptions --disable-werror
gdc_include_dir=/usr/include/dlang/gdc
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 10.2.0 (GCC)
