Support hardware divide instruction
Bug: 11299025
Uses sdiv for division and a combo of sdiv, mul and sub for modulus.
Only does this on processors that are capable of the sdiv instruction, as determined
by the build system.
Also provides a command line arg --instruction-set-features= to allow cross compilation.
Makefile adds the --instruction-set-features= arg to build-time dex2oat runs and defaults
it to something obtained from the target architecture.
Provides a GetInstructionSetFeatures() function on CompilerDriver that can be
queried for various features. The only feature supported right now is hasDivideInstruction().
Also adds a few more instructions to the ARM disassembler
b/11535253 is an addition to this CL to be done later.
Change-Id: Ia8aaf801fd94bc71e476902749cf20f74eba9f68
diff --git a/runtime/base/macros.h b/runtime/base/macros.h
index d00c64a..00a530a 100644
--- a/runtime/base/macros.h
+++ b/runtime/base/macros.h
@@ -130,6 +130,10 @@
#define LIKELY(x) __builtin_expect((x), true)
#define UNLIKELY(x) __builtin_expect((x), false)
+// Stringify the argument.
+#define QUOTE(x) #x
+#define STRINGIFY(x) QUOTE(x)
+
#ifndef NDEBUG
#define ALWAYS_INLINE
#else