diff --git a/tests/filecheck/dialects/llvm/icmp.mlir b/tests/filecheck/dialects/llvm/icmp.mlir
new file mode 100644
index 0000000000..dc558e3010
--- /dev/null
+++ b/tests/filecheck/dialects/llvm/icmp.mlir
@@ -0,0 +1,53 @@
+// RUN: xdsl-opt %s | xdsl-opt --print-op-generic | filecheck %s
+
+%arg0, %arg1 = "test.op"() : () -> (i32, i32)
+
+%icmp_eq_p = "llvm.icmp"(%arg0, %arg1) <{predicate = 0 : i64}> : (i32, i32) -> i1
+%icmp_eq = llvm.icmp "eq" %arg0, %arg1 : i32
+// CHECK:  %icmp_eq_p = "llvm.icmp"(%arg0, %arg1) <{"predicate" = 0 : i64}> : (i32, i32) -> i1
+// CHECK-NEXT:  %icmp_eq = "llvm.icmp"(%arg0, %arg1) <{"predicate" = 0 : i64}> : (i32, i32) -> i1
+
+%icmp_ne_p = "llvm.icmp"(%arg0, %arg1) <{predicate = 1 : i64}> : (i32, i32) -> i1
+%icmp_ne = llvm.icmp "ne" %arg0, %arg1 : i32
+// CHECK-NEXT:  %icmp_ne_p = "llvm.icmp"(%arg0, %arg1) <{"predicate" = 1 : i64}> : (i32, i32) -> i1
+// CHECK-NEXT:  %icmp_ne = "llvm.icmp"(%arg0, %arg1) <{"predicate" = 1 : i64}> : (i32, i32) -> i1
+
+%icmp_slt_p = "llvm.icmp"(%arg0, %arg1) <{predicate = 2 : i64}> : (i32, i32) -> i1
+%icmp_slt = llvm.icmp "slt" %arg0, %arg1 : i32
+// CHECK-NEXT:  %icmp_slt_p = "llvm.icmp"(%arg0, %arg1) <{"predicate" = 2 : i64}> : (i32, i32) -> i1
+// CHECK-NEXT:  %icmp_slt = "llvm.icmp"(%arg0, %arg1) <{"predicate" = 2 : i64}> : (i32, i32) -> i1
+
+%icmp_sle_p = "llvm.icmp"(%arg0, %arg1) <{predicate = 3 : i64}> : (i32, i32) -> i1
+%icmp_sle = llvm.icmp "sle" %arg0, %arg1 : i32
+// CHECK-NEXT:  %icmp_sle_p = "llvm.icmp"(%arg0, %arg1) <{"predicate" = 3 : i64}> : (i32, i32) -> i1
+// CHECK-NEXT:  %icmp_sle = "llvm.icmp"(%arg0, %arg1) <{"predicate" = 3 : i64}> : (i32, i32) -> i1
+
+%icmp_sgt_p = "llvm.icmp"(%arg0, %arg1) <{predicate = 4 : i64}> : (i32, i32) -> i1
+%icmp_sgt = llvm.icmp "sgt" %arg0, %arg1 : i32
+// CHECK-NEXT:  %icmp_sgt_p = "llvm.icmp"(%arg0, %arg1) <{"predicate" = 4 : i64}> : (i32, i32) -> i1
+// CHECK-NEXT:  %icmp_sgt = "llvm.icmp"(%arg0, %arg1) <{"predicate" = 4 : i64}> : (i32, i32) -> i1
+
+%icmp_sge_p = "llvm.icmp"(%arg0, %arg1) <{predicate = 5 : i64}> : (i32, i32) -> i1
+%icmp_sge = llvm.icmp "sge" %arg0, %arg1 : i32
+// CHECK-NEXT:  %icmp_sge_p = "llvm.icmp"(%arg0, %arg1) <{"predicate" = 5 : i64}> : (i32, i32) -> i1
+// CHECK-NEXT:  %icmp_sge = "llvm.icmp"(%arg0, %arg1) <{"predicate" = 5 : i64}> : (i32, i32) -> i1
+
+%icmp_ult_p = "llvm.icmp"(%arg0, %arg1) <{predicate = 6 : i64}> : (i32, i32) -> i1
+%icmp_ult = llvm.icmp "ult" %arg0, %arg1 : i32
+// CHECK-NEXT:  %icmp_ult_p = "llvm.icmp"(%arg0, %arg1) <{"predicate" = 6 : i64}> : (i32, i32) -> i1
+// CHECK-NEXT:  %icmp_ult = "llvm.icmp"(%arg0, %arg1) <{"predicate" = 6 : i64}> : (i32, i32) -> i1
+
+%icmp_ule_p = "llvm.icmp"(%arg0, %arg1) <{predicate = 7 : i64}> : (i32, i32) -> i1
+%icmp_ule = llvm.icmp "ule" %arg0, %arg1 : i32
+// CHECK-NEXT:  %icmp_ule_p = "llvm.icmp"(%arg0, %arg1) <{"predicate" = 7 : i64}> : (i32, i32) -> i1
+// CHECK-NEXT:  %icmp_ule = "llvm.icmp"(%arg0, %arg1) <{"predicate" = 7 : i64}> : (i32, i32) -> i1
+
+%icmp_ugt_p = "llvm.icmp"(%arg0, %arg1) <{predicate = 8 : i64}> : (i32, i32) -> i1
+%icmp_ugt = llvm.icmp "ugt" %arg0, %arg1 : i32
+// CHECK-NEXT:  %icmp_ugt_p = "llvm.icmp"(%arg0, %arg1) <{"predicate" = 8 : i64}> : (i32, i32) -> i1
+// CHECK-NEXT:  %icmp_ugt = "llvm.icmp"(%arg0, %arg1) <{"predicate" = 8 : i64}> : (i32, i32) -> i1
+
+%icmp_uge_p = "llvm.icmp"(%arg0, %arg1) <{predicate = 9 : i64}> : (i32, i32) -> i1
+%icmp_uge = llvm.icmp "uge" %arg0, %arg1 : i32
+// CHECK-NEXT:  %icmp_uge_p = "llvm.icmp"(%arg0, %arg1) <{"predicate" = 9 : i64}> : (i32, i32) -> i1
+// CHECK-NEXT:  %icmp_uge = "llvm.icmp"(%arg0, %arg1) <{"predicate" = 9 : i64}> : (i32, i32) -> i1
diff --git a/tests/filecheck/mlir-conversion/with-mlir/dialects/llvm/icmp.mlir b/tests/filecheck/mlir-conversion/with-mlir/dialects/llvm/icmp.mlir
new file mode 100644
index 0000000000..85982700d7
--- /dev/null
+++ b/tests/filecheck/mlir-conversion/with-mlir/dialects/llvm/icmp.mlir
@@ -0,0 +1,53 @@
+// RUN: mlir-opt %s --mlir-print-op-generic | xdsl-opt --print-op-generic | filecheck %s
+
+%0, %1 = "test.op"() : () -> (i32, i32)
+
+%2 = "llvm.icmp"(%0, %1) <{predicate = 0 : i64}> : (i32, i32) -> i1
+%3 = llvm.icmp "eq" %0, %1 : i32
+// CHECK:  %2 = "llvm.icmp"(%0, %1) <{"predicate" = 0 : i64}> : (i32, i32) -> i1
+// CHECK-NEXT:  %3 = "llvm.icmp"(%0, %1) <{"predicate" = 0 : i64}> : (i32, i32) -> i1
+
+%4 = "llvm.icmp"(%0, %1) <{predicate = 1 : i64}> : (i32, i32) -> i1
+%5 = llvm.icmp "ne" %0, %1 : i32
+// CHECK-NEXT:  %4 = "llvm.icmp"(%0, %1) <{"predicate" = 1 : i64}> : (i32, i32) -> i1
+// CHECK-NEXT:  %5 = "llvm.icmp"(%0, %1) <{"predicate" = 1 : i64}> : (i32, i32) -> i1
+
+%6 = "llvm.icmp"(%0, %1) <{predicate = 2 : i64}> : (i32, i32) -> i1
+%7 = llvm.icmp "slt" %0, %1 : i32
+// CHECK-NEXT:  %6 = "llvm.icmp"(%0, %1) <{"predicate" = 2 : i64}> : (i32, i32) -> i1
+// CHECK-NEXT:  %7 = "llvm.icmp"(%0, %1) <{"predicate" = 2 : i64}> : (i32, i32) -> i1
+
+%8 = "llvm.icmp"(%0, %1) <{predicate = 3 : i64}> : (i32, i32) -> i1
+%9 = llvm.icmp "sle" %0, %1 : i32
+// CHECK-NEXT:  %8 = "llvm.icmp"(%0, %1) <{"predicate" = 3 : i64}> : (i32, i32) -> i1
+// CHECK-NEXT:  %9 = "llvm.icmp"(%0, %1) <{"predicate" = 3 : i64}> : (i32, i32) -> i1
+
+%10 = "llvm.icmp"(%0, %1) <{predicate = 4 : i64}> : (i32, i32) -> i1
+%11 = llvm.icmp "sgt" %0, %1 : i32
+// CHECK-NEXT:  %10 = "llvm.icmp"(%0, %1) <{"predicate" = 4 : i64}> : (i32, i32) -> i1
+// CHECK-NEXT:  %11 = "llvm.icmp"(%0, %1) <{"predicate" = 4 : i64}> : (i32, i32) -> i1
+
+%12 = "llvm.icmp"(%0, %1) <{predicate = 5 : i64}> : (i32, i32) -> i1
+%13 = llvm.icmp "sge" %0, %1 : i32
+// CHECK-NEXT:  %12 = "llvm.icmp"(%0, %1) <{"predicate" = 5 : i64}> : (i32, i32) -> i1
+// CHECK-NEXT:  %13 = "llvm.icmp"(%0, %1) <{"predicate" = 5 : i64}> : (i32, i32) -> i1
+
+%14 = "llvm.icmp"(%0, %1) <{predicate = 6 : i64}> : (i32, i32) -> i1
+%15 = llvm.icmp "ult" %0, %1 : i32
+// CHECK-NEXT:  %14 = "llvm.icmp"(%0, %1) <{"predicate" = 6 : i64}> : (i32, i32) -> i1
+// CHECK-NEXT:  %15 = "llvm.icmp"(%0, %1) <{"predicate" = 6 : i64}> : (i32, i32) -> i1
+
+%16 = "llvm.icmp"(%0, %1) <{predicate = 7 : i64}> : (i32, i32) -> i1
+%17 = llvm.icmp "ule" %0, %1 : i32
+// CHECK-NEXT:  %16 = "llvm.icmp"(%0, %1) <{"predicate" = 7 : i64}> : (i32, i32) -> i1
+// CHECK-NEXT:  %17 = "llvm.icmp"(%0, %1) <{"predicate" = 7 : i64}> : (i32, i32) -> i1
+
+%18 = "llvm.icmp"(%0, %1) <{predicate = 8 : i64}> : (i32, i32) -> i1
+%19 = llvm.icmp "ugt" %0, %1 : i32
+// CHECK-NEXT:  %18 = "llvm.icmp"(%0, %1) <{"predicate" = 8 : i64}> : (i32, i32) -> i1
+// CHECK-NEXT:  %19 = "llvm.icmp"(%0, %1) <{"predicate" = 8 : i64}> : (i32, i32) -> i1
+
+%20 = "llvm.icmp"(%0, %1) <{predicate = 9 : i64}> : (i32, i32) -> i1
+%21 = llvm.icmp "uge" %0, %1 : i32
+// CHECK-NEXT:  %20 = "llvm.icmp"(%0, %1) <{"predicate" = 9 : i64}> : (i32, i32) -> i1
+// CHECK-NEXT:  %21 = "llvm.icmp"(%0, %1) <{"predicate" = 9 : i64}> : (i32, i32) -> i1
diff --git a/xdsl/dialects/llvm.py b/xdsl/dialects/llvm.py
index fbbd6bc204..e6da96bb99 100644
--- a/xdsl/dialects/llvm.py
+++ b/xdsl/dialects/llvm.py
@@ -20,6 +20,7 @@
     StringAttr,
     SymbolRefAttr,
     UnitAttr,
+    i1,
     i32,
     i64,
 )
@@ -31,7 +32,6 @@
     Operation,
     ParametrizedAttribute,
     Region,
-    SpacedOpaqueSyntaxAttribute,
     SSAValue,
     TypeAttribute,
 )
@@ -623,15 +623,16 @@ class ICmpPredicateFlag(StrEnum):
     UGT = "ugt"
     UGE = "uge"
 
+    @staticmethod
+    def from_int(index: int) -> ICmpPredicateFlag:
+        return ALL_ICMP_FLAGS[index]
 
-@irdl_attr_definition
-class ICmpPredicateAttr(SpacedOpaqueSyntaxAttribute, EnumAttribute[ICmpPredicateFlag]):
-    name = "llvm.predicate"
-    ALL_PREDICATES = tuple(ICmpPredicateFlag)
+    def to_int(self) -> int:
+        return ICMP_INDEX_BY_FLAG[self]
 
-    @classmethod
-    def from_int(cls, i: int):
-        return ICmpPredicateAttr(cls.ALL_PREDICATES[i])
+
+ALL_ICMP_FLAGS = tuple(ICmpPredicateFlag)
+ICMP_INDEX_BY_FLAG = {f: i for (i, f) in enumerate(ALL_ICMP_FLAGS)}
 
 
 @irdl_op_definition
@@ -641,8 +642,8 @@ class ICmpOp(IRDLOperation):
 
     lhs = operand_def(T)
     rhs = operand_def(T)
-    res = result_def(T)
-    predicate = prop_def(ICmpPredicateAttr)
+    res = result_def(i1)
+    predicate = prop_def(IntegerAttr[i64])
 
     traits = frozenset([NoMemoryEffect()])
 
@@ -650,13 +651,13 @@ def __init__(
         self,
         lhs: SSAValue,
         rhs: SSAValue,
-        predicate: ICmpPredicateAttr,
+        predicate: IntegerAttr[IntegerType],
         attributes: dict[str, Attribute] = {},
     ):
         super().__init__(
             operands=[lhs, rhs],
             attributes=attributes,
-            result_types=[lhs.type],
+            result_types=[i1],
             properties={
                 "predicate": predicate,
             },
@@ -666,7 +667,8 @@ def __init__(
     def parse(cls, parser: Parser):
         predicate_literal = parser.parse_str_literal()
         predicate_value = ICmpPredicateFlag[predicate_literal.upper()]
-        predicate = ICmpPredicateAttr(predicate_value)
+        predicate_int = predicate_value.to_int()
+        predicate = IntegerAttr(predicate_int, i64)
         lhs = parser.parse_unresolved_operand()
         parser.parse_characters(",")
         rhs = parser.parse_unresolved_operand()
@@ -677,7 +679,8 @@ def parse(cls, parser: Parser):
         return cls(operands[0], operands[1], predicate, attributes)
 
     def print_predicate(self, printer: Printer):
-        self.predicate.print_parameter(printer)
+        flag = ICmpPredicateFlag.from_int(self.predicate.value.data)
+        printer.print_string(f"{flag}")
 
     def print(self, printer: Printer):
         printer.print_string(' "')
@@ -1609,6 +1612,5 @@ class ZeroOp(IRDLOperation):
         TailCallKindAttr,
         FastMathAttr,
         OverflowAttr,
-        ICmpPredicateAttr,
     ],
 )