[Webkit-unassigned] [Bug 188135] New: [audio] Hard dependency on SSE instruction set

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=188135

            Bug ID: 188135
           Summary: [audio] Hard dependency on SSE instruction set
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: PC
                OS: All
            Status: NEW
          Severity: Blocker
          Priority: P2
         Component: Web Audio
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: karogyoker2+webkit at gmail.com

In DenormalDisabler.h stmxcsr and ldmxcsr are used but these instructions are only available in CPUs with SSE.
Therefore this #if must be changed:
#if defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__))
to this:
#if defined(__GNUC__) && defined(__SSE__)

This #if must be changed at both occurrences in the file.
Here:
#if defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__))
#define HAVE_DENORMAL
#endif

and here:
#if defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__))
    inline int getCSR()

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