https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116504
Bug ID: 116504
Summary: wrong code with -mcpu=sifive-x280
Product: gcc
Version: 15.0
Status: UNCONFIRMED
Keywords: wrong-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: riscv64-unknown-linux-gnu
Created attachment 59014
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=59014&action=edit
reduced testcase
I am using qemu-riscv64 userspace emulation; this might be an issue in the
emulator, or in the way how I am using it, and not in the gcc. I am unable to
tell where the issue is. I am having problems with -mcpu=sifive-x280 often, so
I welcome any feedback on this.
$ riscv64-unknown-linux-gnu-gcc -mcpu=sifive-x280 testcase.c -static
$ qemu-riscv64 -- ./a.out
Aborted
$ 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-r15-3209-20240827075350-g103127cd939-checking-yes-rtl-df-extra-riscv64/bin/../libexec/gcc/riscv64-unknown-linux-gnu/15.0.0/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
--enable-libsanitizer --disable-libstdcxx-pch
--prefix=/repo/gcc-trunk//binary-trunk-r15-3209-20240827075350-g103127cd939-checking-yes-rtl-df-extra-riscv64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 15.0.0 20240826 (experimental) (GCC)
