RustPython
diff --git a/‎crates/vm/src/builtins/frame.rs‎
Lines changed: 2 additions & 2 deletions b/‎crates/vm/src/builtins/frame.rs‎
Lines changed: 2 additions & 2 deletions
@@ -182,8 +182,8 @@ pub(crate) mod stack_analysis {
                 }
                 oparg = (oparg << 8) | u32::from(u8::from(instructions[i].arg));
 
-                // De-instrument: get the underlying real instruction
-                let opcode = opcode.to_base().unwrap_or(opcode);
+                // De-instrument and de-specialize: get the underlying base instruction
+                let opcode = opcode.to_base().unwrap_or(opcode).deoptimize();
 
                 let caches = opcode.cache_entries();
                 let next_i = i + 1 + caches;
Original file line number	Diff line number	Diff line change
`@@ -182,8 +182,8 @@ pub(crate) mod stack_analysis {`
`182`	`182`	`}`
`183`	`183`	`oparg = (oparg << 8) \| u32::from(u8::from(instructions[i].arg));`
`184`	`184`
`185`		`- // De-instrument: get the underlying real instruction`
`186`		`- let opcode = opcode.to_base().unwrap_or(opcode);`
	`185`	`+ // De-instrument and de-specialize: get the underlying base instruction`
	`186`	`+ let opcode = opcode.to_base().unwrap_or(opcode).deoptimize();`
`187`	`187`
`188`	`188`	`let caches = opcode.cache_entries();`
`189`	`189`	`let next_i = i + 1 + caches;`