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From: "pan2.li at intel dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/114639] [riscv] ICE in create_pre_exit, at
 mode-switching.cc:451
Date: Tue, 09 Apr 2024 07:22:47 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D114639

--- Comment #8 from Li Pan <pan2.li at intel dot com> ---
Find an even simpler code for reproduction.

#include <riscv_vector.h>

extern unsigned long get_vl ();

vbool16_t test (vuint64m4_t a)
{
  unsigned long b;
  return __riscv_vmsne_vx_u64m4_b16 (a, b, get_vl ());
}

../__RISC-V_INSTALL___RV64/bin/riscv64-unknown-elf-g++ -O3 -march=3Drv64gcv=
 -c
ref.c -S -o -

acc22d56e140220e7dc6c138918cb6754b6d1c0b enabled the vector abi by default,=
 and
trigger this assert in create_pre_exit. Replace get_vl () with a local vari=
able
could bypass this issue. will continue to investigate.=