Hi, we want to support vector-scalar and vector-immediate bitwise logic instructions, It was implemented by referring to RVV v1.0 [1]. please take a look and have some reviews. Thanks a lot.
We can use the Int256VectorTests.java[2] to print the compilation log, verify and observe the generation of nodes.

For example, we can use the following command to print the compilation log of a jtreg test case:

```
/home/zifeihan/jdk-tools/jtreg/bin/jtreg \
-v:default \
-concurrency:16 -timeout:50 \
-javaoption:-XX:+UnlockExperimentalVMOptions \
-javaoption:-XX:+UseRVV \
-javaoption:-XX:+PrintOptoAssembly \
-javaoption:-XX:LogFile=/home/zifeihan/jdk/Int256VectorTests_PrintOptoAssembly.log \
-jdk:/home/zifeihan/jdk/build/linux-riscv64-server-fastdebug/jdk \
/home/zifeihan/jdk/test/jdk/jdk/incubator/vector/Int256VectorTests.java
```


 we can observe the specified compilation log `Int256VectorTests_PrintOptoAssembly.log`, which contains the vector-scalar and vector-immediate bitwise logic node for the PR implementation.

vand_immI Node

```
0b4 vloadcon V3 # generate iota indices
0bc vmla V2, V2, V3, V1
0c4 vand_immI V2, V2, #7
0cc addi R7, R30, #16 # ptr, #@addP_reg_imm
0d0 storeV [R7], V2 # vector (rvv)
```

vor_regI Node

```
180 vor_regI V1, V1, R30
188 add R31, R14, R31 # ptr, #@addP_reg_reg
18a addi R31, R31, #16 # ptr, #@addP_reg_imm
18c storeV [R31], V1 # vector (rvv)
194 addiw R11, R11, #8 #@addI_reg_imm
196 blt R11, R13, B17 #@cmpI_loop P=0.500000 C=30564.000000
```

vxor_regI
```
198 vxor_regI V1, V1, R30
1a0 add R14, R16, R14 # ptr, #@addP_reg_reg
1a2 addi R14, R14, #16 # ptr, #@addP_reg_imm
1a4 storeV [R14], V1 # vector (rvv)
1ac addiw R11, R11, #8 #@addI_reg_imm
1ae blt R11, R13, B21 #@cmpI_loop P=0.500000 C=30564.000000
```

vnotI Node

```
13c B23: # out( B52 B24 ) <- in( B22 ) Freq: 75.1106
13c loadV V2, [R16] # vector (rvv)
144 vnotI V2, V2
14c vand V1, V1, V2
154 bgeu R9, R12, B52 #@cmpU_branch P=0.000001 C=-1.000000
```

[1] https://github.com/riscv/riscv-v-spec/blob/v1.0/v-spec.adoc
[2] https://github.com/openjdk/jdk/blob/master/test/jdk/jdk/incubator/vector/Int256VectorTests.java