https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110299

            Bug ID: 110299
           Summary: RISC-V: ICE when build RVV intrinsic widen with
                    "-march=rv32gc_zve64d -mabi=ilp32d", both GCC 14 and
                    13.
           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: ---

Created attachment 55358
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=55358&action=edit
Reproduce code

Given we have the below code.

#include "riscv_vector.h"

#include "riscv_vector.h"

vfloat32m1_t test_vfwredosum_vs_f16m1_f32m1(vfloat16m1_t vector, vfloat32m1_t
scalar, size_t vl) {
  return __riscv_vfwredosum_vs_f16m1_f32m1(vector, scalar, vl);
}

There will be the ICE when build similar as "riscv64-unknown-elf-gcc
-march=rv64gc_zve64d -mabi=lp64 -O3 -Wno-psabi -c -S test-float.c -o -".

        .text
test-widen.c: In function 'test_vfwredosum_vs_f16m1_f32m1':
test-widen.c:4:10: error: invalid argument to built-in function
    4 |   return __riscv_vfwredosum_vs_f16m1_f32m1(vector, scalar, vl);
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
during RTL pass: expand
test-widen.c:4:10: internal compiler error: Segmentation fault
0x1044343 crash_signal
        ../.././gcc/gcc/toplev.cc:314
0x7f76d0c4251f ???
        ./signal/../sysdeps/unix/sysv/linux/x86_64/libc_sigaction.c:0
0xc5d1d7 store_expr(tree_node*, rtx_def*, int, bool, bool)
        ../.././gcc/gcc/expr.cc:6345
0xc5f500 expand_assignment(tree_node*, tree_node*, bool)
        ../.././gcc/gcc/expr.cc:6048
0xb2142c expand_call_stmt
        ../.././gcc/gcc/cfgexpand.cc:2829
0xb2142c expand_gimple_stmt_1
        ../.././gcc/gcc/cfgexpand.cc:3880
0xb2142c expand_gimple_stmt
        ../.././gcc/gcc/cfgexpand.cc:4044
0xb26770 expand_gimple_basic_block
        ../.././gcc/gcc/cfgexpand.cc:6096
0xb28837 execute
        ../.././gcc/gcc/cfgexpand.cc:6831
  • [Bug c/110299] New: RISC-V: ICE... pan2.li at intel dot com via Gcc-bugs

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