Blame SOURCES/mozilla-1253216.patch

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diff -up firefox-48.0/js/src/jit/AtomicOperations.h.old firefox-48.0/js/src/jit/AtomicOperations.h
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--- firefox-48.0/js/src/jit/AtomicOperations.h.old	2016-07-27 09:42:43.148175449 +0200
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+++ firefox-48.0/js/src/jit/AtomicOperations.h	2016-07-27 09:41:13.000000000 +0200
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@@ -340,7 +340,7 @@ AtomicOperations::isLockfree(int32_t siz
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 # elif defined(__aarch64__)
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 #  include "jit/arm64/AtomicOperations-arm64.h"
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 # else
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-#  include "jit/none/AtomicOperations-none.h" // These MOZ_CRASH() always
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+#  include "jit/none/AtomicOperations-ppc.h"
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 # endif
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 #elif defined(JS_CODEGEN_X86) || defined(JS_CODEGEN_X64)
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 # include "jit/x86-shared/AtomicOperations-x86-shared.h"