From 9fa69d222fe3175c59060164a41f2ed1b020080c Mon Sep 17 00:00:00 2001
From: ringabout <43030857+ringabout@users.noreply.github.com>
Date: Thu, 5 Feb 2026 12:41:54 +0800
Subject: [PATCH] fixes #25482; ICE leaking temporary 3 slotTempInt (#25483)

fixes #25482

(cherry picked from commit a04f720217f3d7c34506bc85e91c9e47ef3873fa)
---
 compiler/vmgen.nim   | 2 ++
 tests/vm/tvmmisc.nim | 7 +++++++
 2 files changed, 9 insertions(+)

diff --git a/compiler/vmgen.nim b/compiler/vmgen.nim
index 8deb3048e4..9ea0b6ef74 100644
--- a/compiler/vmgen.nim
+++ b/compiler/vmgen.nim
@@ -803,6 +803,8 @@ proc genNarrow(c: PCtx; n: PNode; dest: TDest) =
     let first = c.genx(newIntTypeNode(firstOrd(c.config, t), intType))
     let last = c.genx(newIntTypeNode(lastOrd(c.config, t), intType))
     c.gABC(n, opcNarrowR, dest, first, last)
+    c.freeTemp(first)
+    c.freeTemp(last)
 
 proc genNarrowU(c: PCtx; n: PNode; dest: TDest) =
   let t = skipTypes(n.typ, abstractVar-{tyTypeDesc})
diff --git a/tests/vm/tvmmisc.nim b/tests/vm/tvmmisc.nim
index e2d979fad6..35ac6f0ccf 100644
--- a/tests/vm/tvmmisc.nim
+++ b/tests/vm/tvmmisc.nim
@@ -821,3 +821,10 @@ proc g1314(_: static bool) = discard
 proc g1314(_: int) = discard
 proc y1314() = g1314((; let k = 0; k))
 y1314()
+
+proc myProc(first: range[0..100]) =
+  var x = first
+  while x > 0:
+    dec(x)
+
+const r = (myProc(3); 1)