Subzero. ARM32. Strength reduce multiplications.

crosstest/test_arith.cpp

 //===- subzero/crosstest/test_arith.cpp - Arithmetic operator tests -------===//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
 // Implementation for crosstesting arithmetic operations.
@@ skipping 31 matching lines @@
   v16si8 test##inst(v16si8 a, v16si8 b) { return a op b; }
 SINTOP_TABLE
 #undef X
 
 #define X(inst, op, func)                                                      \
   float test##inst(float a, float b) { return func(a op b); }                  \
   double test##inst(double a, double b) { return func(a op b); }               \
   v4f32 test##inst(v4f32 a, v4f32 b) { return func(a op b); }
 FPOP_TABLE
 #undef X
+
+#define X(mult_by)                                                             \
+  bool testMultiplyBy##mult_by(bool a, bool /*unused*/) {                      \
+    return a * (mult_by);                                                      \
+  }                                                                            \
+  bool testMultiplyByNeg##mult_by(bool a, bool /*unused*/) {                   \
+    return a * (-(mult_by));                                                   \
+  }                                                                            \
+  uint8_t testMultiplyBy##mult_by(uint8_t a, uint8_t /*unused*/) {             \
+    return a * (mult_by);                                                      \
+  }                                                                            \
+  uint8_t testMultiplyByNeg##mult_by(uint8_t a, uint8_t /*unused*/) {          \
+    return a * (-(mult_by));                                                   \
+  }                                                                            \
+  uint16_t testMultiplyBy##mult_by(uint16_t a, uint16_t /*unused*/) {          \
+    return a * (mult_by);                                                      \
+  }                                                                            \
+  uint16_t testMultiplyByNeg##mult_by(uint16_t a, uint16_t /*unused*/) {       \
+    return a * (-(mult_by));                                                   \
+  }                                                                            \
+  uint32_t testMultiplyBy##mult_by(uint32_t a, uint32_t /*unused*/) {          \
+    return a * (mult_by);                                                      \
+  }                                                                            \
+  uint32_t testMultiplyByNeg##mult_by(uint32_t a, uint32_t /*unused*/) {       \
+    return a * (-(mult_by));                                                   \
+  }                                                                            \
+  uint64_t testMultiplyBy##mult_by(uint64_t a, uint64_t /*unused*/) {          \
+    return a * (mult_by);                                                      \
+  }                                                                            \
+  uint64_t testMultiplyByNeg##mult_by(uint64_t a, uint64_t /*unused*/) {       \
+    return a * (-(mult_by));                                                   \
+  }
+MULIMM_TABLE
+#undef X