https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109773
Bug ID: 109773
Summary: RISC-V: ICE when build RVV Intrinisc
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: ---
There will be one ICE when trying to build the below code with the option
'-march=rv64gcv -O3 -fno-schedule-insns -c -S test.c -o -'.
#include "riscv_vector.h"
void f4 (int32_t * a, int32_t * b, int n)
{
if (n <= 0)
return;
int i = n;
size_t vl = __riscv_vsetvl_e8mf4 (i);
for (; i >= 0; i--)
{
vint32m1_t v = __riscv_vle32_v_i32m1 (a + i, vl);
v = __riscv_vle32_v_i32m1_tu (v, a + i + 100, vl);
__riscv_vse32_v_i32m1 (b + i, v, vl);
if (i >= vl)
continue;
if (i == 0)
return;
vl = __riscv_vsetvl_e8mf4 (vl);
}
}
The output of compiling.
> riscv64-unknown-linux-gnu-gcc -march=rv64gcv -O3 -fno-schedule-insns -c -S
> test.c -o -
.file "test.c"
.option nopic
.attribute arch,
"rv64i2p1_m2p0_a2p1_f2p2_d2p2_c2p0_v1p0_zicsr2p0_zifencei2p0_zve32f1p0_zve32x1p0_zve64d1p0_zve64f1p0_zve64x1p0_zvl128b1p0_zvl32b1p0_zvl64b1p0"
.attribute unaligned_access, 0
.attribute stack_align, 16
.text
riscv64-unknown-linux-gnu-gcc: internal compiler error: Segmentation fault
signal terminated program cc1
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
See <https://gcc.gnu.org/bugs/> for instructions.
> riscv-gnu-toolchain@<22:46:54 一 5月
> 08>[4]*1*[3s]"~/bin/gnu-rv64-linux-13/bin/riscv64-unknown-linux-gnu-gcc
> -march=rv64gcv -O3 -fno-schedule-insns -c -S test.c -o -"
>> ~/bin/gnu-rv64-linux-13/bin/riscv64-unknown-linux-gnu-gcc --version
riscv64-unknown-linux-gnu-gcc (g1c9c53f0256) 13.1.1 20230508
Copyright (C) 2023 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
