Force WriteByte to be inlined

runtime/platform/globals.h

Index: runtime/platform/globals.h
diff --git a/runtime/platform/globals.h b/runtime/platform/globals.h
index 4c5d053bb4de8bd9e034c9784b7a2de21d87af21..f06f04c75c40a3f347c74ac67f1e56933b633625 100644
--- a/runtime/platform/globals.h
+++ b/runtime/platform/globals.h
@@ -124,6 +124,19 @@ typedef struct {
 #error Architecture was not detected as supported by Dart.
 #endif
 
+// DART_FORCE_INLINE strongly hints to the compiler that a function should
+// be inlined. Your function is not guaranteed to be inlined but this is
+// stronger than just using "inline".
+// See: http://msdn.microsoft.com/en-us/library/z8y1yy88.aspx for an
+// explanation of some the cases when a function can never be inlined.
+#ifdef _MSC_VER
+#define DART_FORCE_INLINE __forceinline
+#elif __GNUC__
+#define DART_FORCE_INLINE inline __attribute__((always_inline))
+#else

[Søren Gjesse, 2013/02/27 12:57:44]

Wouldn't an empty define for DART_FORCE_INLINE work here - will work with any
other compiler that might become supported.

+#error Automatic compiler detection failed.
+#endif
+
 #if !defined(TARGET_ARCH_MIPS)
 #if !defined(TARGET_ARCH_ARM)
 #if !defined(TARGET_ARCH_X64)