Revert "Revert "Upgrade to 5.0.71.48"" DO NOT MERGE

This reverts commit f2e3994fa5148cc3d9946666f0b0596290192b0e,
and updates the x64 makefile properly so it doesn't break that
build.

FPIIM-449

Change-Id: Ib83e35bfbae6af627451c926a9650ec57c045605
(cherry picked from commit 109988c7ccb6f3fd1a58574fa3dfb88beaef6632)
diff --git a/src/compiler/mips/instruction-codes-mips.h b/src/compiler/mips/instruction-codes-mips.h
index c938177..64aecd0 100644
--- a/src/compiler/mips/instruction-codes-mips.h
+++ b/src/compiler/mips/instruction-codes-mips.h
@@ -28,6 +28,8 @@
   V(MipsNor)                       \
   V(MipsXor)                       \
   V(MipsClz)                       \
+  V(MipsCtz)                       \
+  V(MipsPopcnt)                    \
   V(MipsShl)                       \
   V(MipsShr)                       \
   V(MipsSar)                       \
@@ -76,9 +78,11 @@
   V(MipsFloorWS)                   \
   V(MipsCeilWS)                    \
   V(MipsTruncUwD)                  \
+  V(MipsTruncUwS)                  \
   V(MipsCvtDW)                     \
   V(MipsCvtDUw)                    \
   V(MipsCvtSW)                     \
+  V(MipsCvtSUw)                    \
   V(MipsLb)                        \
   V(MipsLbu)                       \
   V(MipsSb)                        \
@@ -103,7 +107,6 @@
   V(MipsStoreToStackSlot)          \
   V(MipsStackClaim)
 
-
 // Addressing modes represent the "shape" of inputs to an instruction.
 // Many instructions support multiple addressing modes. Addressing modes
 // are encoded into the InstructionCode of the instruction and tell the