Implements simple returns and call args for Mips.

src/IceRegistersMIPS32.h

Index: src/IceRegistersMIPS32.h
diff --git a/src/IceRegistersMIPS32.h b/src/IceRegistersMIPS32.h
index 8c75488e8e358c031c5d7c649626e61856223c4b..e8e3221fdf38c0564b93b40584b8a5823143b08f 100644
--- a/src/IceRegistersMIPS32.h
+++ b/src/IceRegistersMIPS32.h
@@ -27,7 +27,8 @@ namespace RegMIPS32 {
 /// used to binary encode register operands in instructions.
 enum AllRegisters {
 #define X(val, encode, name, scratch, preserved, stackptr, frameptr, isInt,    \
-          isFP)                                                                \
+          isI64Pair, isFP32, isFP64, isVec128, alias_init)                     \
+                                                                               \

[Jim Stichnoth, 2015/10/20 04:41:00]

Remove extra blank line for consistency with other uses of x-macros.
Here and below.

(That said, it would be nice to find a more pleasing style of x-macro blank line
usage to use everywhere.)

[rkotlerimgtec, 2015/10/21 00:30:54]

Done.

   val,
   REGMIPS32_TABLE
 #undef X
@@ -41,7 +42,8 @@ enum AllRegisters {
 /// to binary encode register operands in instructions.
 enum GPRRegister {
 #define X(val, encode, name, scratch, preserved, stackptr, frameptr, isInt,    \
-          isFP)                                                                \
+          isI64Pair, isFP32, isFP64, isVec128, alias_init)                     \
+                                                                               \
   Encoded_##val encode,
   REGMIPS32_GPR_TABLE
 #undef X