Attachment 346059 Details for Bug 188145 – Patch

[patch] Patch

bug-188145-20180730174244.patch (text/plain), 1.13 KB, created by karogyoker2+webkit on 2018-07-30 08:42:44 PDT

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Creator: karogyoker2+webkit

Created: 2018-07-30 08:42:44 PDT

Size: 1.13 KB

patch

obsolete

>Index: Source/WTF/ChangeLog
>===================================================================
>--- Source/WTF/ChangeLog	(revision 234364)
>+++ Source/WTF/ChangeLog	(working copy)
>@@ -1,3 +1,13 @@
>+2018-07-30  Karo Gyoker  <karogyoker2@gmail.com>
>+
>+        Only use LFENCE if CPU supports SSE2, otherwise use the slower CPUID.
>+        https://bugs.webkit.org/show_bug.cgi?id=188145
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        * wtf/Atomics.h:
>+        (WTF::speculationFence):
>+
> 2018-07-28  Mark Lam  <mark.lam@apple.com>
> 
>         Gardening: build fix for internal builds.
>Index: Source/WTF/wtf/Atomics.h
>===================================================================
>--- Source/WTF/wtf/Atomics.h	(revision 234364)
>+++ Source/WTF/wtf/Atomics.h	(working copy)
>@@ -322,7 +322,11 @@ inline void storeStoreFence() { compiler
> inline void memoryBarrierAfterLock() { compilerFence(); }
> inline void memoryBarrierBeforeUnlock() { compilerFence(); }
> inline void crossModifyingCodeFence() { x86_cpuid(); }
>+#if CPU(X86_SSE2)
> inline void speculationFence() { x86_lfence(); }
>+#else
>+inline void speculationFence() { x86_cpuid(); }
>+#endif
> 
> #else
>

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