Set precedence for TOKgep as well, now that we have the assert back in expToCBuffer.

dmd/expression.h

@@ -1925,6 +1925,7 @@ struct LineInitExp : DefaultInitExp
 
 // this stuff is strictly LDC
 
+// Special expression to represent a LLVM GetElementPtr instruction.
 struct GEPExp : UnaExp
 {
     unsigned index;

dmd/parse.c

@@ -5625,6 +5625,11 @@ void initPrecedence()
 
     precedence[TOKcomma] = PREC_expr;
     precedence[TOKdeclaration] = PREC_expr;
+    
+#if IN_LLVM
+    // Need to set precedence for TOKgep as well, as expToCBuffer expects it.
+    precedence[TOKgep] = PREC_primary;
+#endif
 }