[Webkit-unassigned] [Bug 264034] New: Host function isPureNaN is inlined into true in DFGByteCodeParser.cpp handleIntrinsicCall.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=264034

            Bug ID: 264034
           Summary: Host function isPureNaN is inlined into true in
                    DFGByteCodeParser.cpp handleIntrinsicCall.
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: entryhii at gmail.com

===================test.js==================
for (let v0 = 0; v0 < 100; v0++) {
  const v2 = this.isPureNaN(v0);
  print(v2)
}
============================================


Run args: ./jsc -f test.js --useConcurrentJIT=0  --jitPolicyScale=0.01


JSC prints `true` in DFG. The correct result should be `false`.

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