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authorAndrew Weintraub <asweintraub@google.com>2017-11-02 14:29:38 +0000
committerChromium commit bot <commit-bot@chromium.org>2017-11-02 14:29:38 +0000
commitd4ef57288f19317de4e60a3b20425250cd6cd933 (patch)
tree655b6edd48c2561eaaf4498b985e8e3af9670720 /third_party/base/allocator/partition_allocator
parent87d06d37e0d04b2559598d1adbcb008074a20bd4 (diff)
downloadpdfium-d4ef57288f19317de4e60a3b20425250cd6cd933.tar.xz
Only use the yield instruction on architectures that support it.
This is a downstream patch of https://crrev.com/502028. Change-Id: Ib78784093332a81a7afd6959c66f5e266540f6d3 Reviewed-on: https://pdfium-review.googlesource.com/17350 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: dsinclair <dsinclair@chromium.org>
Diffstat (limited to 'third_party/base/allocator/partition_allocator')
-rw-r--r--third_party/base/allocator/partition_allocator/spin_lock.cc2
1 files changed, 1 insertions, 1 deletions
diff --git a/third_party/base/allocator/partition_allocator/spin_lock.cc b/third_party/base/allocator/partition_allocator/spin_lock.cc
index 803e4d6abc..8d7151a8b7 100644
--- a/third_party/base/allocator/partition_allocator/spin_lock.cc
+++ b/third_party/base/allocator/partition_allocator/spin_lock.cc
@@ -26,7 +26,7 @@
#elif defined(COMPILER_GCC) || defined(__clang__)
#if defined(ARCH_CPU_X86_64) || defined(ARCH_CPU_X86)
#define YIELD_PROCESSOR __asm__ __volatile__("pause")
-#elif defined(ARCH_CPU_ARMEL) || defined(ARCH_CPU_ARM64)
+#elif (defined(ARCH_CPU_ARMEL) && __ARM_ARCH >= 6) || defined(ARCH_CPU_ARM64)
#define YIELD_PROCESSOR __asm__ __volatile__("yield")
#elif defined(ARCH_CPU_MIPSEL)
// The MIPS32 docs state that the PAUSE instruction is a no-op on older