diff -up firefox-60.7/layout/base/nsIPresShell.h.1354671 firefox-60.7/layout/base/nsIPresShell.h --- firefox-60.7/layout/base/nsIPresShell.h.1354671 2017-04-27 13:07:43.808653320 +0200 +++ firefox-60.7/layout/base/nsIPresShell.h 2017-04-27 13:09:40.404427641 +0200 @@ -204,7 +204,7 @@ public: * to the same aSize value. AllocateFrame is infallible and will abort * on out-of-memory. */ - void* AllocateFrame(nsQueryFrame::FrameIID aID, size_t aSize) { + void* __attribute__((optimize("no-lifetime-dse"))) AllocateFrame(nsQueryFrame::FrameIID aID, size_t aSize) { void* result = mFrameArena.AllocateByFrameID(aID, aSize); RecordAlloc(result); return result;