From f48fcfe55280a6ff2672588581d44711cb840cc4 Mon Sep 17 00:00:00 2001
From: Mel Henning <mhenning@darkrefraction.com>
Date: Fri, 5 Dec 2025 15:17:52 -0500
Subject: [PATCH] nak: impl fmt::Debug for SSAValue

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/38807>
---
 src/nouveau/compiler/nak/ssa_value.rs | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/src/nouveau/compiler/nak/ssa_value.rs b/src/nouveau/compiler/nak/ssa_value.rs
index c01191234fa..6f055aa3943 100644
--- a/src/nouveau/compiler/nak/ssa_value.rs
+++ b/src/nouveau/compiler/nak/ssa_value.rs
@@ -67,6 +67,12 @@ impl fmt::Display for SSAValue {
     }
 }
 
+impl fmt::Debug for SSAValue {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        fmt::Display::fmt(self, f)
+    }
+}
+
 #[derive(Clone, Eq, Hash, PartialEq)]
 struct SSAValueArray<const SIZE: usize> {
     v: [SSAValue; SIZE],
@@ -343,3 +349,15 @@ impl SSAValueAllocator {
         SSARef::from_iter((0..comps).map(|_| self.alloc(file)))
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_ssa_value_print() {
+        let ssa = SSAValue::new(RegFile::UPred, 42);
+        assert_eq!(format!("{}", ssa), "%up42");
+        assert_eq!(format!("{:?}", ssa), "%up42");
+    }
+}