Subzero: Strength-reduce mul by certain constants.

crosstest/test_strengthreduce.h

Index: crosstest/test_strengthreduce.h
diff --git a/crosstest/test_strengthreduce.h b/crosstest/test_strengthreduce.h
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+++ b/crosstest/test_strengthreduce.h
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+//===- subzero/crosstest/test_strengthreduce.h - Prototypes ---*- C++ -*---===//
+//
+//                        The Subzero Code Generator
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file declares the function prototypes used for crosstesting strength
+// reduction.
+//
+//===----------------------------------------------------------------------===//
+
+#include <stdint.h>
+
+#include "test_strengthreduce.def"
+
+#define X(constant, suffix)                                                    \
+  uint32_t multiplyByConst##suffix(uint32_t val);                              \
+  int32_t multiplyByConst##suffix(int32_t val);
+CONST_TABLE
+#undef X