https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114885
Bug ID: 114885
Summary: RISC-V: ICE of unrecog insn when graphite for both the
c/c++ and fortran
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: pan2.li at intel dot com
Target Milestone: ---
When some graphite (require the isl build for gcc) tests, there are sorts of
ICE that cannot recog the insn.
FAIL: gcc.dg/graphite/pr111878.c (internal compiler error: in
extract_insn, at recog.cc:2812)
FAIL: gfortran.dg/graphite/id-27.f90 -O (internal compiler error: in
extract_insn, at recog.cc:2812)
FAIL: gfortran.dg/graphite/id-27.f90 -O (test for excess errors)
FAIL: gfortran.dg/graphite/pr14741.f90 -O (internal compiler error:
in extract_insn, at recog.cc:2812)
FAIL: gfortran.dg/graphite/pr14741.f90 -O (test for excess errors)
FAIL: gfortran.dg/graphite/pr29581.f90 -O3 -fomit-frame-pointer
-funroll-loops -fpeel-loops -ftracer -finline-functions (internal
compiler error: in extract_insn, at recog.cc:2812)
FAIL: gfortran.dg/graphite/pr29581.f90 -O3 -fomit-frame-pointer
-funroll-loops -fpeel-loops -ftracer -finline-functions (test for
excess errors)
FAIL: gfortran.dg/graphite/pr29581.f90 -O3 -g (internal compiler
error: in extract_insn, at recog.cc:2812)
FAIL: gfortran.dg/graphite/pr29581.f90 -O3 -g (test for excess errors)
FAIL: gfortran.dg/graphite/pr29832.f90 -O3 -fomit-frame-pointer
-funroll-loops -fpeel-loops -ftracer -finline-functions (internal
compiler error: in extract_insn, at recog.cc:2812)
FAIL: gfortran.dg/graphite/pr29832.f90 -O3 -fomit-frame-pointer
-funroll-loops -fpeel-loops -ftracer -finline-functions (test for
excess errors)
FAIL: gfortran.dg/graphite/pr29832.f90 -O3 -g (internal compiler
error: in extract_insn, at recog.cc:2812)
FAIL: gfortran.dg/graphite/pr29832.f90 -O3 -g (test for excess errors)
FAIL: gfortran.dg/graphite/vect-pr40979.f90 -O (internal compiler
error: in extract_insn, at recog.cc:2812)
FAIL: gfortran.dg/graphite/vect-pr40979.f90 -O (test for excess errors)
Reproduce step(s):
1. download isl-0.24, let isl -> /some-where/riscv-gnu-toolchain/gcc/isl-0.24
2. mkdir __BUILD__ && cd __BUILD__ && ../configure \
--target=riscv64-unknown-elf \
--prefix=${INSTALL_DIR} \
--disable-shared \
--enable-threads \
--enable-tls \
--enable-languages=c,c++,fortran \
--with-system-zlib \
--with-newlib \
--disable-libmudflap \
--disable-libssp \
--disable-libquadmath \
--disable-libgomp \
--enable-nls \
--disable-tm-clone-registry \
--src=`pwd`/../ \
--with-abi=lp64d \
--with-arch=rv64gcv \
--with-tune=rocket \
--with-isa-spec=20191213 \
CFLAGS_FOR_BUILD="-O0 -g" \
CXXFLAGS_FOR_BUILD="-O0 -g" \
CFLAGS_FOR_TARGET="-O0 -g" \
CXXFLAGS_FOR_TARGET="-O0 -g" \
BOOT_CFLAGS="-O0 -g" \
CFLAGS="-O0 -g" \
CXXFLAGS="-O0 -g" \
GM2FLAGS_FOR_TARGET="-O0 -g" \
GOCFLAGS_FOR_TARGET="-O0 -g" \
GDCFLAGS_FOR_TARGET="-O0 -g"
make -j $(nproc) all-gcc && make install-gcc
3. ../__RISC-V_INSTALL___RV64/bin/riscv64-unknown-elf-gcc
gcc/testsuite/gcc.dg/graphite/pr111878.c -O3 -fgraphite-identity
-fsave-optimization-record -march=rv64gcv -mabi=lp64d -c -S -o -
