Subzero. Removes references to %ah.

src/IceRegistersX8632.h

Index: src/IceRegistersX8632.h
diff --git a/src/IceRegistersX8632.h b/src/IceRegistersX8632.h
index da920e28d9552238ed0773fcddfe82f179df15ab..b0d22bb12ff10a8f2e12b94431aa50a635b892e3 100644
--- a/src/IceRegistersX8632.h
+++ b/src/IceRegistersX8632.h
@@ -78,19 +78,20 @@ public:
   };
 
   static inline GPRRegister getEncodedGPR(int32_t RegNum) {
-    assert(Reg_GPR_First <= RegNum && RegNum <= Reg_GPR_Last);
+    assert(Reg_GPR_First <= RegNum);
+    assert(RegNum <= Reg_GPR_Last);
     return GPRRegister(RegNum - Reg_GPR_First);
   }
 
   static inline XmmRegister getEncodedXmm(int32_t RegNum) {
-    assert(Reg_XMM_First <= RegNum && RegNum <= Reg_XMM_Last);
+    assert(Reg_XMM_First <= RegNum);
+    assert(RegNum <= Reg_XMM_Last);
     return XmmRegister(RegNum - Reg_XMM_First);
   }
 
   static inline ByteRegister getEncodedByteReg(int32_t RegNum) {
-    assert(RegNum == Reg_ah || (Reg_GPR_First <= RegNum && RegNum <= Reg_ebx));
-    if (RegNum == Reg_ah)
-      return Encoded_Reg_ah;
+    assert(Reg_GPR_First <= RegNum);
+    assert(RegNum <= Reg_ebx);
     return ByteRegister(RegNum - Reg_GPR_First);
   }
 
@@ -102,7 +103,8 @@ public:
   }
 
   static inline X87STRegister getEncodedSTReg(int32_t RegNum) {
-    assert(Encoded_X87ST_First <= RegNum && RegNum <= Encoded_X87ST_Last);
+    assert(Encoded_X87ST_First <= RegNum);
+    assert(RegNum <= Encoded_X87ST_Last);
     return X87STRegister(RegNum);
   }
 };