Introduction of improved switch lowering.

src/IceTargetLoweringX8632.cpp

 //===- subzero/src/IceTargetLoweringX8632.cpp - x86-32 lowering -----------===//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 ///
 /// \file
@@ skipping 317 matching lines @@
 namespace dummy3 {
 // Define a temporary set of enum values based on low-level table
 // entries.
 enum _tmp_enum {
 #define X(tag, elementty, cvt, sdss, pack, width, fld) _tmp_##tag,
   ICETYPEX8632_TABLE
 #undef X
       _num
 };
 // Define a set of constants based on high-level table entries.
-#define X(tag, size, align, elts, elty, str)                                   \
+#define X(tag, sizeLog2, align, elts, elty, str)                               \
   static const int _table1_##tag = tag;
 ICETYPE_TABLE
 #undef X
 // Define a set of constants based on low-level table entries, and
 // ensure the table entry keys are consistent.
 #define X(tag, elementty, cvt, sdss, pack, width, fld)                         \
   static const int _table2_##tag = _tmp_##tag;                                 \
   static_assert(_table1_##tag == _table2_##tag,                                \
                 "Inconsistency between ICETYPEX8632_TABLE and ICETYPE_TABLE");
 ICETYPEX8632_TABLE
 #undef X
 // Repeat the static asserts with respect to the high-level table
 // entries in case the high-level table has extra entries.
-#define X(tag, size, align, elts, elty, str)                                   \
+#define X(tag, sizeLog2, align, elts, elty, str)                               \
   static_assert(_table1_##tag == _table2_##tag,                                \
                 "Inconsistency between ICETYPEX8632_TABLE and ICETYPE_TABLE");
 ICETYPE_TABLE
 #undef X
 } // end of namespace dummy3
 } // end of anonymous namespace
 
 } // end of namespace Ice