[Webkit-unassigned] [Bug 183488] New: testmasm crashes in testBranchTruncateDoubleToInt32() on ARM64

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=183488

            Bug ID: 183488
           Summary: testmasm crashes in testBranchTruncateDoubleToInt32()
                    on ARM64
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: msaboff at apple.com

The code was written by adjusting sp down by 8 bytes.  ARM64 hardware asserts that sp is 16 byte align when used as the destination of the load/store.  The fix is to keep the stack aligned.

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