As urem needs positive operands, srcMod could generate negative operands.

To be safe, disable srcMod for urem.

Author: jgu222

IGC/Compiler/CISACodeGen/helper.cpp

@@ -1280,6 +1280,9 @@ namespace IGC
         case Instruction::Mul:
             // integer mul supports modifier if not int64.
             return !inst->getType()->isIntegerTy(64);
+        case Instruction::URem:
+            // neg mod is negative. Disable it as URem must have positive operands,
+            return false;
         default:
             break;
         }