From 47e0badbcaeeb178dab747f87ba528be011ee904 Mon Sep 17 00:00:00 2001
From: radik878 <radikpadik76@gmail.com>
Date: Tue, 17 Feb 2026 22:11:56 +0200
Subject: [PATCH] fix(cranelift): correct sign extension operators to use
 ireduce result

---
 .../src/translate/code_translator.rs          | 25 ++++++++-----------
 1 file changed, 10 insertions(+), 15 deletions(-)

diff --git a/crates/cranelift/src/translate/code_translator.rs b/crates/cranelift/src/translate/code_translator.rs
index b7565bd24e12..2bdfe0cf344c 100644
--- a/crates/cranelift/src/translate/code_translator.rs
+++ b/crates/cranelift/src/translate/code_translator.rs
@@ -1161,33 +1161,28 @@ pub fn translate_operator(
         }
         Operator::I32Extend8S => {
             let val = environ.stacks.pop1();
-            environ.stacks.push1(builder.ins().ireduce(I8, val));
-            let val = environ.stacks.pop1();
-            environ.stacks.push1(builder.ins().sextend(I32, val));
+            let reduced = builder.ins().ireduce(I8, val);
+            environ.stacks.push1(builder.ins().sextend(I32, reduced));
         }
         Operator::I32Extend16S => {
             let val = environ.stacks.pop1();
-            environ.stacks.push1(builder.ins().ireduce(I16, val));
-            let val = environ.stacks.pop1();
-            environ.stacks.push1(builder.ins().sextend(I32, val));
+            let reduced = builder.ins().ireduce(I16, val);
+            environ.stacks.push1(builder.ins().sextend(I32, reduced));
         }
         Operator::I64Extend8S => {
             let val = environ.stacks.pop1();
-            environ.stacks.push1(builder.ins().ireduce(I8, val));
-            let val = environ.stacks.pop1();
-            environ.stacks.push1(builder.ins().sextend(I64, val));
+            let reduced = builder.ins().ireduce(I8, val);
+            environ.stacks.push1(builder.ins().sextend(I64, reduced));
         }
         Operator::I64Extend16S => {
             let val = environ.stacks.pop1();
-            environ.stacks.push1(builder.ins().ireduce(I16, val));
-            let val = environ.stacks.pop1();
-            environ.stacks.push1(builder.ins().sextend(I64, val));
+            let reduced = builder.ins().ireduce(I16, val);
+            environ.stacks.push1(builder.ins().sextend(I64, reduced));
         }
         Operator::I64Extend32S => {
             let val = environ.stacks.pop1();
-            environ.stacks.push1(builder.ins().ireduce(I32, val));
-            let val = environ.stacks.pop1();
-            environ.stacks.push1(builder.ins().sextend(I64, val));
+            let reduced = builder.ins().ireduce(I32, val);
+            environ.stacks.push1(builder.ins().sextend(I64, reduced));
         }
         /****************************** Binary Operators ************************************/
         Operator::I32Add | Operator::I64Add => {