diff --git a/cranelift/codegen/src/preopt.peepmatic b/cranelift/codegen/src/preopt.peepmatic
index a571d82947af..cd988ff7d956 100644
--- a/cranelift/codegen/src/preopt.peepmatic
+++ b/cranelift/codegen/src/preopt.peepmatic
@@ -196,4 +196,4 @@
 (=> (when (urem_imm $C $x)
           (is-power-of-two $C)
           (fits-in-native-word $C))
-    (band_imm $(isub 1 $C) $x))
+    (band_imm $(isub $C 1) $x))
diff --git a/cranelift/codegen/src/preopt.serialized b/cranelift/codegen/src/preopt.serialized
index 27023cfad28a..1bb11b24ad37 100644
Binary files a/cranelift/codegen/src/preopt.serialized and b/cranelift/codegen/src/preopt.serialized differ
diff --git a/cranelift/peepmatic/crates/runtime/src/operator.rs b/cranelift/peepmatic/crates/runtime/src/operator.rs
index 71fc2c4ca4b9..2915f36290fa 100644
--- a/cranelift/peepmatic/crates/runtime/src/operator.rs
+++ b/cranelift/peepmatic/crates/runtime/src/operator.rs
@@ -233,14 +233,14 @@ pub enum UnquoteOperator {
     #[peepmatic(params(iNN, iNN), result(iNN))]
     Iadd,
 
-    /// Compile-time `isub` of two constant values.
-    #[peepmatic(params(iNN, iNN), result(iNN))]
-    Isub,
-
     /// Compile-time `imul` of two constant values.
     #[peepmatic(params(iNN, iNN), result(iNN))]
     Imul,
 
+    /// Compile-time `isub` of two constant values.
+    #[peepmatic(params(iNN, iNN), result(iNN))]
+    Isub,
+
     /// Take the base-2 log of a power of two integer.
     #[peepmatic(params(iNN), result(iNN))]
     Log2,
diff --git a/cranelift/peepmatic/crates/runtime/src/optimizer.rs b/cranelift/peepmatic/crates/runtime/src/optimizer.rs
index ce4a6b8e57ec..f477db85ac69 100644
--- a/cranelift/peepmatic/crates/runtime/src/optimizer.rs
+++ b/cranelift/peepmatic/crates/runtime/src/optimizer.rs
@@ -77,8 +77,8 @@ where
             | UnquoteOperator::Bor
             | UnquoteOperator::Bxor
             | UnquoteOperator::Iadd
-            | UnquoteOperator::Isub
-            | UnquoteOperator::Imul => unreachable!("not a unary unquote operator: {:?}", operator),
+            | UnquoteOperator::Imul
+            | UnquoteOperator::Isub => unreachable!("not a unary unquote operator: {:?}", operator),
         }
     }
 
@@ -99,8 +99,8 @@ where
             UnquoteOperator::Bor => fold_ints!(a, b, |x, y| x | y),
             UnquoteOperator::Bxor => fold_ints!(a, b, |x, y| x ^ y),
             UnquoteOperator::Iadd => fold_ints!(a, b, |x, y| x.wrapping_add(y)),
-            UnquoteOperator::Isub => fold_ints!(a, b, |x, y| x.wrapping_sub(y)),
             UnquoteOperator::Imul => fold_ints!(a, b, |x, y| x.wrapping_mul(y)),
+            UnquoteOperator::Isub => fold_ints!(a, b, |x, y| x.wrapping_sub(y)),
             UnquoteOperator::Log2 | UnquoteOperator::Neg => {
                 unreachable!("not a binary unquote operator: {:?}", operator)
             }