src/core/SkOnce.h - Issue 34353009: Borrow Android's ARMv6 memory barrier for SkOnce.

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Unified Diff: src/core/SkOnce.h

Issue 34353009: Borrow Android's ARMv6 memory barrier for SkOnce. (Closed) Base URL: https://skia.googlecode.com/svn/trunk

Patch Set: Created 7 years, 2 months ago

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Index: src/core/SkOnce.h

diff --git a/src/core/SkOnce.h b/src/core/SkOnce.h

index ddef0d56c438abbfed1870ae2460e6d743c627f4..a469e22c86246d681f4acbbab0da404223d01e48 100644

--- a/src/core/SkOnce.h

+++ b/src/core/SkOnce.h

@@ -64,7 +64,11 @@ inline static void compiler_barrier() {

inline static void full_barrier_on_arm() {

#ifdef SK_CPU_ARM

+#if SK_ARM_ARCH >= 7

asm volatile("dmb" : : : "memory");

+#else

+ asm volatile("mcr p15, 0, %0, c7, c10, 5" : : "r" (0) : "memory");

+#endif

#endif

}

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