Test Case:
TURIN>cat test_isnanfp32.java

import java.util.stream.IntStream;
import java.util.Arrays;

public class test_isnanfp32 {
    public static void micro(boolean [] dst, float [] src) {
        for (int i = 0; i < dst.length; i++) {
            dst[i] = Float.isNaN(src[i]);
        }
    }

    public static void main(String [] args) {
        float [] src = new float[4096];
        boolean [] dst = new boolean[4096];
        IntStream.range(0, src.length).forEach(i -> {
               if (i % 10 == 0) {
                   src[i] = Float.NaN;
               } else {
                   src[i] = (float)i;
               }
           }
        );

        for (int i = 0; i < 100000; i++) {
            micro(dst, src);
        }

        long t1 = System.currentTimeMillis();
        for (int i = 0; i < 100000; i++) {
            micro(dst, src);
        }
        long t2 = System.currentTimeMillis();
        IO.println("[time] " + (t2-t1) + " ms [res] " + Arrays.toString(Arrays.copyOfRange(dst, 0, 16)));
    }
}


CommandLine:
java -XX:-TieredCompilation -XX:CompileCommand=Print,test_isnanfp32::micro -XX:CompileCommand=compileonly,test_isnanfp32::micro -cp . test_isnanfp32

OS: SUSE Linux Enterprise Server 15 SP7 (x86_64)

CompileCommand: print test_isnanfp32.micro bool print = true
CompileCommand: compileonly test_isnanfp32.micro bool compileonly = true

============================= C2-compiled nmethod ==============================
#
# A fatal error has been detected by the Java Runtime Environment:
#
# SIGSEGV (0xb) at pc=0x0000152a2469f4ae, pid=346494, tid=346518
#
# JRE version: OpenJDK Runtime Environment (26.0) (slowdebug build 26-internal-adhoc.root.jdk)
# Java VM: OpenJDK 64-Bit Server VM (slowdebug 26-internal-adhoc.root.jdk, mixed mode, sharing, compressed oops, compressed class ptrs, g1 gc, linux-amd64)
# Problematic frame:
# V [libjvm.so+0xa9f4ae] ConstantPool::print_value_on(outputStream*) const+0xf8
#
# Core dump will be written. Default location: Determined by the following: "/usr/lib/systemd/systemd-coredump %P %u %g %s %t %c %h %d" (alternatively, falling back to /home/javauser/jbhateja/code/java/auto-vec/core.346494)
#
# An error report file with more information is saved as:
# /home/javauser/jbhateja/code/java/auto-vec/hs_err_pid346494.log
#
# Compiler replay data is saved as:
# /home/javauser/jbhateja/code/java/auto-vec/replay_pid346494.log
#
# If you would like to submit a bug report, please visit:
# https://bugreport.java.com/bugreport/crash.jsp
#
Aborted (core dumped)