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@@ -, +, @@ 
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---
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 layout/base/nsIPresShell.h | 2 +-
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 1 file changed, 1 insertion(+), 1 deletion(-)
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--- a/layout/base/nsIPresShell.h	
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+++ a/layout/base/nsIPresShell.h	
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@@ -224,7 +224,7 @@ public:
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    * to the same aSize value.  AllocateFrame returns zero-filled memory.
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    * AllocateFrame is infallible and will abort on out-of-memory.
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    */
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-  void* AllocateFrame(nsQueryFrame::FrameIID aID, size_t aSize)
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+  void* __attribute__((optimize("no-lifetime-dse"))) AllocateFrame(nsQueryFrame::FrameIID aID, size_t aSize)
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   {
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     void* result = mFrameArena.AllocateByFrameID(aID, aSize);
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     RecordAlloc(result);
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--