[Bug target/125390] New: [17 Regression][RISC-V][RVV] ICE in cc1 during tree loop vectorization with -march=rv64gcv_zvl256b at -O2/-O3

[skothadiya at whileone dot in via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=125390

            Bug ID: 125390
           Summary: [17 Regression][RISC-V][RVV] ICE in cc1 during tree
                    loop vectorization with -march=rv64gcv_zvl256b at
                    -O2/-O3
           Product: gcc
           Version: 17.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: skothadiya at whileone dot in
  Target Milestone: ---

Created attachment 64501
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=64501&action=edit
Testcase

Command & output
```
...sujayk/CIFUZZR/riscv-gnu-toolchain-build/bin/riscv64-unknown-linux-gnu-gcc
-I/compiler-fuzz-ci/csmith-build/include -fsigned-char -fno-strict-aliasing
-fwrapv -march=rv64gcv_zvl256b -O2 -mrvv-vector-bits=zvl red.c -o rv64gcv.out
-w -freport-bug
riscv64-unknown-linux-gnu-gcc: internal compiler error: Segmentation fault
signal terminated program cc1
Segmentation fault (core dumped)
```