thunderbird/rhbz-1354671.patch

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diff -up firefox-70.0/layout/base/PresShell.h.1354671 firefox-70.0/layout/base/PresShell.h
--- firefox-70.0/layout/base/PresShell.h.1354671 2019-10-22 12:33:12.987775587 +0200
+++ firefox-70.0/layout/base/PresShell.h 2019-10-22 12:36:39.999366086 +0200
@@ -257,7 +257,7 @@ class PresShell final : public nsStubDoc
* 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) {
#define FRAME_ID(classname, ...) \
static_assert(size_t(nsQueryFrame::FrameIID::classname##_id) == \
size_t(eArenaObjectID_##classname), \