diff --git a/compiler/src/dmd/backend/cdef.d b/compiler/src/dmd/backend/cdef.d
index bdefdb4e8d..7e70e6a52c 100644
--- a/compiler/src/dmd/backend/cdef.d
+++ b/compiler/src/dmd/backend/cdef.d
@@ -700,11 +700,11 @@ struct con_t
 import dmd.backend.bcomplex;
 
 /*********************************
- * Union of all data types. Storage allocated must be the right
+ * Union of all arithmetic data types. Storage allocated must be the right
  * size of the data on the TARGET, not the host.
  */
 
-union eve
+union Vconst
 {
         targ_char       Vchar;
         targ_schar      Vschar;
diff --git a/compiler/src/dmd/backend/cgxmm.d b/compiler/src/dmd/backend/cgxmm.d
index d011450229..88aac75cf6 100644
--- a/compiler/src/dmd/backend/cgxmm.d
+++ b/compiler/src/dmd/backend/cgxmm.d
@@ -59,7 +59,7 @@ bool isXMMstore(opcode_t op)
  */
 
 @trusted
-void movxmmconst(ref CodeBuilder cdb, reg_t xreg, tym_t ty, eve* pev, regm_t flags)
+void movxmmconst(ref CodeBuilder cdb, reg_t xreg, tym_t ty, Vconst* pev, regm_t flags)
 {
     //printf("movxmmconst() %s ty: %s value: %lld\n", regm_str(mask(xreg)), tym_str(ty), pev.Vllong);
 
@@ -187,7 +187,7 @@ void orthxmm(ref CodeBuilder cdb, elem *e, regm_t *pretregs)
             regm_t nretregs = XMMREGS & ~retregs;
             const sreg = allocreg(cdb,nretregs,e2.Ety); // hold sign bit
             const uint sz = tysize(e1.Ety);
-            eve signbit;
+            Vconst signbit;
             signbit.Vint = 0x80000000;
             if (sz == 8)
                 signbit.Vllong = 0x8000_0000_0000_0000;
@@ -706,7 +706,7 @@ void xmmneg(ref CodeBuilder cdb,elem *e,regm_t *pretregs)
     regm_t rretregs = XMMREGS & ~retregs;
     const rreg = allocreg(cdb,rretregs,tyml);
 
-    eve signbit;
+    Vconst signbit;
     signbit.Vint = 0x80000000;
     if (sz == 8)
         signbit.Vllong = 0x8000_0000_0000_0000;
@@ -747,7 +747,7 @@ void xmmabs(ref CodeBuilder cdb,elem *e,regm_t *pretregs)
     regm_t rretregs = XMMREGS & ~retregs;
     const rreg = allocreg(cdb,rretregs,tyml);
 
-    eve mask;
+    Vconst mask;
     mask.Vint = 0x7FFF_FFFF;
     if (sz == 8)
         mask.Vllong = 0x7FFF_FFFF_FFFF_FFFFL;
diff --git a/compiler/src/dmd/backend/el.d b/compiler/src/dmd/backend/el.d
index e36cd02dab..59518d1f4d 100644
--- a/compiler/src/dmd/backend/el.d
+++ b/compiler/src/dmd/backend/el.d
@@ -78,7 +78,7 @@ struct elem
 
     union
     {
-        eve EV;                 // arithmetic constants
+        Vconst EV;                 // arithmetic constants
 
         struct
         {
diff --git a/compiler/src/dmd/backend/elem.d b/compiler/src/dmd/backend/elem.d
index ae0342c92f..a7dc378c9d 100644
--- a/compiler/src/dmd/backend/elem.d
+++ b/compiler/src/dmd/backend/elem.d
@@ -1315,7 +1315,7 @@ elem *el_convfloat(elem *e)
 @trusted
 elem *el_convxmm(elem *e)
 {
-    ubyte[eve.sizeof] buffer = void;
+    ubyte[Vconst.sizeof] buffer = void;
 
     // Do not convert if the constants can be loaded with the special XMM instructions
     if (loadxmmconst(e))
@@ -1558,7 +1558,7 @@ elem *el_convert(elem *e)
  */
 
 @safe
-elem * el_const(tym_t ty, ref eve pconst)
+elem * el_const(tym_t ty, ref Vconst pconst)
 {
     elem* e = el_calloc();
     e.Eoper = OPconst;
@@ -1659,7 +1659,7 @@ elem *el_ctor_dtor(elem *ec, elem *ed, out elem* pedtor)
         ector.Ety = TYvoid;
 //      ector.ed.Edecl = decl;
 
-        eve c = void;
+        Vconst c = void;
         memset(&c, 0, c.sizeof);
         elem *e_flag_0 = el_bin(OPeq, TYvoid, el_var(sflag), el_const(TYbool, c));  // __flag = 0
         er = el_bin(OPinfo, ec ? ec.Ety : TYvoid, ector, el_combine(e_flag_0, ec));
@@ -2720,7 +2720,7 @@ case_tym:
         case TYulong16:           // uint[16]
         case TYllong8:            // long[8]
         case TYullong8:           // ulong[8]
-            printf("512 bit vector ");  // not supported yet with union eve
+            printf("512 bit vector ");  // not supported yet with union Vconst
             break;
 
         default:
diff --git a/compiler/src/dmd/backend/evalu8.d b/compiler/src/dmd/backend/evalu8.d
index 768f0491ec..126117a8e6 100644
--- a/compiler/src/dmd/backend/evalu8.d
+++ b/compiler/src/dmd/backend/evalu8.d
@@ -345,7 +345,7 @@ static if (0)
       debug printf("d1 = %Lg, d2 = %Lg, op = %d, OPne = %d, tym = x%lx\n",d1,d2,op,OPne,tym);
       debug printf("tym1 = x%lx, tym2 = x%lx, e2 = %g\n",tym,tym2,e2.Vdouble);
 
-      eve u;
+      Vconst u = void;
       debug printf("d1 = x%16llx\n", (u.Vldouble = d1, u.Vullong));
       debug printf("d2 = x%16llx\n", (u.Vldouble = d2, u.Vullong));
   }
diff --git a/compiler/src/dmd/backend/gloop.d b/compiler/src/dmd/backend/gloop.d
index 721fcd5125..be500cc4ee 100644
--- a/compiler/src/dmd/backend/gloop.d
+++ b/compiler/src/dmd/backend/gloop.d
@@ -1903,7 +1903,7 @@ private void appendelem(elem *n,elem **pn)
 @trusted
 private void newfamlist(famlist* fl, tym_t ty)
 {
-    eve c = void;
+    Vconst c = void;
     memset(&c,0,c.sizeof);
 
     fl.FLty = ty;