https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108927
Bug ID: 108927
Summary: error: too few arguments to function 'long unsigned
int __riscv_vsetvlmax_e8mf8(void)'
Product: gcc
Version: 13.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: malat at debian dot org
Target Milestone: ---
For some reason riscv64 rvv extension is broken. It is supposed to work with
the new naming convention:
* https://www.mail-archive.com/gcc-patches@gcc.gnu.org/msg298381.html
% head ./gcc/testsuite/gcc.target/riscv/rvv/base/vsetvl-1.c
/* { dg-do compile } */
/* { dg-options "-march=rv32gcv -mabi=ilp32d -O3" } */
However consider now
```
% cat t.c
#include <riscv_vector.h>
int main()
{
size_t vl = __riscv_vsetvlmax_e8mf8();
return vl;
}
```
gives:
```
g++ -march=rv64gcv1p0 t.c
t.c: In function 'int main()':
t.c:5:39: error: too few arguments to function 'long unsigned int
__riscv_vsetvlmax_e8mf8(void)'
5 | size_t vl = __riscv_vsetvlmax_e8mf8();
| ~~~~~~~~~~~~~~~~~~~~~~~^~
In file included from t.c:1:
/usr/lib/gcc-snapshot/lib/gcc/riscv64-linux-gnu/13/include/riscv_vector.h:94:25:
note: declared here
94 | #pragma riscv intrinsic "vector"
| ^~~~~~~~
```
Full log:
% LIBRARY_PATH=/usr/lib/gcc-snapshot/lib /usr/lib/gcc-snapshot/bin/g++
-march=rv64gcv1p0 -v t.c
Using built-in specs.
COLLECT_GCC=/usr/lib/gcc-snapshot/bin/g++
COLLECT_LTO_WRAPPER=/usr/lib/gcc-snapshot/libexec/gcc/riscv64-linux-gnu/13/lto-wrapper
Target: riscv64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Debian 20230108-1'
--with-bugurl=file:///usr/share/doc/gcc-snapshot/README.Bugs
--enable-languages=c,ada,c++,go,d,fortran,objc,obj-c++,m2,rust
--prefix=/usr/lib/gcc-snapshot --with-gcc-major-version-only --program-prefix=
--enable-shared --enable-linker-build-id --disable-nls --enable-bootstrap
--enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes
--with-default-libstdcxx-abi=new --enable-gnu-unique-object --disable-libitm
--disable-libquadmath --disable-libquadmath-support --enable-plugin
--with-system-zlib --enable-libphobos-checking=release
--with-target-system-zlib=auto --enable-objc-gc=auto --enable-multiarch
--disable-werror --disable-multilib --with-arch=rv64gc --with-abi=lp64d
--enable-checking=yes --build=riscv64-linux-gnu --host=riscv64-linux-gnu
--target=riscv64-linux-gnu --with-build-config=bootstrap-lto-lean
--enable-link-serialization=2
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 13.0.0 20230108 (experimental) [master r13-5059-gd901bf8a44a]
(Debian 20230108-1)
COLLECT_GCC_OPTIONS='-march=rv64gcv1p0' '-v' '-shared-libgcc' '-mabi=lp64d'
'-misa-spec=20191213'
'-march=rv64imafdc_v1p0_zicsr_zifencei_zve32f_zve32x_zve64d_zve64f_zve64x_zvl128b_zvl32b_zvl64b'
'-dumpdir' 'a-'
/usr/lib/gcc-snapshot/libexec/gcc/riscv64-linux-gnu/13/cc1plus -quiet -v
-imultilib . -imultiarch riscv64-linux-gnu -D_GNU_SOURCE t.c -quiet -dumpdir a-
-dumpbase t.c -dumpbase-ext .c -march=rv64gcv1p0 -mabi=lp64d
-misa-spec=20191213
-march=rv64imafdc_v1p0_zicsr_zifencei_zve32f_zve32x_zve64d_zve64f_zve64x_zvl128b_zvl32b_zvl64b
-version -o /tmp/ccVVv6RI.s
GNU C++17 (Debian 20230108-1) version 13.0.0 20230108 (experimental) [master
r13-5059-gd901bf8a44a] (riscv64-linux-gnu)
compiled by GNU C version 13.0.0 20230108 (experimental) [master
r13-5059-gd901bf8a44a], GMP version 6.2.1, MPFR version 4.1.1-p1, MPC version
1.3.1, isl version isl-0.25-GMP
warning: MPFR header version 4.1.1-p1 differs from library version 4.2.0.
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
ignoring nonexistent directory "/usr/local/include/riscv64-linux-gnu"
ignoring nonexistent directory
"/usr/lib/gcc-snapshot/lib/gcc/riscv64-linux-gnu/13/include-fixed/riscv64-linux-gnu"
ignoring nonexistent directory
"/usr/lib/gcc-snapshot/lib/gcc/riscv64-linux-gnu/13/include-fixed"
ignoring nonexistent directory
"/usr/lib/gcc-snapshot/lib/gcc/riscv64-linux-gnu/13/../../../../riscv64-linux-gnu/include"
#include "..." search starts here:
#include <...> search starts here:
/usr/lib/gcc-snapshot/lib/gcc/riscv64-linux-gnu/13/../../../../include/c++/13
/usr/lib/gcc-snapshot/lib/gcc/riscv64-linux-gnu/13/../../../../include/c++/13/riscv64-linux-gnu/.
/usr/lib/gcc-snapshot/lib/gcc/riscv64-linux-gnu/13/../../../../include/c++/13/backward
/usr/lib/gcc-snapshot/lib/gcc/riscv64-linux-gnu/13/include
/usr/local/include
/usr/lib/gcc-snapshot/include
/usr/include/riscv64-linux-gnu
/usr/include
End of search list.
GNU C++17 (Debian 20230108-1) version 13.0.0 20230108 (experimental) [master
r13-5059-gd901bf8a44a] (riscv64-linux-gnu)
compiled by GNU C version 13.0.0 20230108 (experimental) [master
r13-5059-gd901bf8a44a], GMP version 6.2.1, MPFR version 4.1.1-p1, MPC version
1.3.1, isl version isl-0.25-GMP
warning: MPFR header version 4.1.1-p1 differs from library version 4.2.0.
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
Compiler executable checksum: 8b0a1f9bde5380a9cce8ac18dbcd4399
t.c: In function 'int main()':
t.c:5:39: error: too few arguments to function 'long unsigned int
__riscv_vsetvlmax_e8mf8(void)'
5 | size_t vl = __riscv_vsetvlmax_e8mf8();
| ~~~~~~~~~~~~~~~~~~~~~~~^~
In file included from t.c:1:
/usr/lib/gcc-snapshot/lib/gcc/riscv64-linux-gnu/13/include/riscv_vector.h:94:25:
note: declared here
94 | #pragma riscv intrinsic "vector"
| ^~~~~~~~
