A64: Eliminate static initializers

src/a64/constants-a64.h

Index: src/a64/constants-a64.h
diff --git a/src/a64/constants-a64.h b/src/a64/constants-a64.h
index e54871954d4382f50c7e911f0e450fae27ff34af..625f9872e506ce56fbd7cab8e662385274fef2ba 100644
--- a/src/a64/constants-a64.h
+++ b/src/a64/constants-a64.h
@@ -65,19 +65,19 @@ const unsigned kJSCalleeSavedRegList = 0x03f80000;
 // TODO(all): k<Y>RegSize should probably be k<Y>RegSizeInBits.
 const unsigned kWRegSize = 32;
 const unsigned kWRegSizeLog2 = 5;
-const unsigned kWRegSizeInBytes = kWRegSize / 8;
+const unsigned kWRegSizeInBytes = kWRegSize >> 3;
 const unsigned kWRegSizeInBytesLog2 = kWRegSizeLog2 - 3;
 const unsigned kXRegSize = 64;
 const unsigned kXRegSizeLog2 = 6;
-const unsigned kXRegSizeInBytes = kXRegSize / 8;
+const unsigned kXRegSizeInBytes = kXRegSize >> 3;
 const unsigned kXRegSizeInBytesLog2 = kXRegSizeLog2 - 3;
 const unsigned kSRegSize = 32;
 const unsigned kSRegSizeLog2 = 5;
-const unsigned kSRegSizeInBytes = kSRegSize / 8;
+const unsigned kSRegSizeInBytes = kSRegSize >> 3;
 const unsigned kSRegSizeInBytesLog2 = kSRegSizeLog2 - 3;
 const unsigned kDRegSize = 64;
 const unsigned kDRegSizeLog2 = 6;
-const unsigned kDRegSizeInBytes = kDRegSize / 8;
+const unsigned kDRegSizeInBytes = kDRegSize >> 3;
 const unsigned kDRegSizeInBytesLog2 = kDRegSizeLog2 - 3;
 const int64_t kWRegMask = 0x00000000ffffffffL;
 const int64_t kXRegMask = 0xffffffffffffffffL;
@@ -108,19 +108,19 @@ const unsigned kSPRegInternalCode = 63;
 const unsigned kRegCodeMask = 0x1f;
 // Standard machine types defined by AAPCS64.
 const unsigned kByteSize = 8;
-const unsigned kByteSizeInBytes = kByteSize / 8;
+const unsigned kByteSizeInBytes = kByteSize >> 3;
 const unsigned kHalfWordSize = 16;
 const unsigned kHalfWordSizeLog2 = 4;
-const unsigned kHalfWordSizeInBytes = kHalfWordSizeInBytes / 8;
+const unsigned kHalfWordSizeInBytes = kHalfWordSize >> 3;
 const unsigned kHalfWordSizeInBytesLog2 = kHalfWordSizeLog2 - 3;
 const unsigned kWordSize = 32;
 const unsigned kWordSizeLog2 = 5;
-const unsigned kWordSizeInBytes = kWordSizeInBytes / 8;
+const unsigned kWordSizeInBytes = kWordSize >> 3;
 const unsigned kWordSizeInBytesLog2 = kWordSizeLog2 - 3;
 const unsigned kDoubleWordSize = 64;
-const unsigned kDoubleWordSizeInBytes = kDoubleWordSizeInBytes / 8;
+const unsigned kDoubleWordSizeInBytes = kDoubleWordSize >> 3;
 const unsigned kQuadWordSize = 128;
-const unsigned kQuadWordSizeInBytes = kQuadWordSizeInBytes / 8;
+const unsigned kQuadWordSizeInBytes = kQuadWordSize >> 3;
 // AArch64 floating-point specifics. These match IEEE-754.
 const unsigned kDoubleMantissaBits = 52;
 const unsigned kDoubleExponentBits = 11;