Pretty print fixnum

2 files changed, 6 insertions, 0 deletions

diff --git a/zjit/src/cruby.rs b/zjit/src/cruby.rs
index 709f60bcd0..4f2e881f36 100644
--- a/zjit/src/cruby.rs
+++ b/zjit/src/cruby.rs
@@ -466,6 +466,11 @@ impl VALUE {
         }
     }
 
+    pub fn as_fixnum(self) -> i64 {
+        assert!(self.fixnum_p());
+        (self.0 >> 1) as i64
+    }
+
     pub fn as_isize(self) -> isize {
         let VALUE(is) = self;
         is as isize
diff --git a/zjit/src/ir.rs b/zjit/src/ir.rs
index ad198f2fca..28ac98e5ea 100644
--- a/zjit/src/ir.rs
+++ b/zjit/src/ir.rs
@@ -32,6 +32,7 @@ enum Opnd {
 impl std::fmt::Display for Opnd {
     fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
         match self {
+            Opnd::Const(val) if val.fixnum_p() => write!(f, "Fixnum({})", val.as_fixnum()),
             Opnd::Const(val) => write!(f, "Const({:?})", val.as_ptr::<u8>()),
             Opnd::Insn(insn_id) => write!(f, "{insn_id}"),
         }