From fa09bebacbbb28c1bd8381c7c677ca0f046afc42 Mon Sep 17 00:00:00 2001
From: Mars Saxman <mars@risczero.com>
Date: Mon, 26 Aug 2024 11:16:50 -0700
Subject: [PATCH] satisfy compiler's concern about mixed signed/unsigned
 comparison

---
 zirgen/dsl/passes/GenerateLayout.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/zirgen/dsl/passes/GenerateLayout.cpp b/zirgen/dsl/passes/GenerateLayout.cpp
index 8b638eaa..254fa5a3 100644
--- a/zirgen/dsl/passes/GenerateLayout.cpp
+++ b/zirgen/dsl/passes/GenerateLayout.cpp
@@ -110,7 +110,8 @@ class AllocationTable {
   int nextIndex(int n) {
     int next = storage.find_next_unset(n);
     size_t capacity = storage.getBitCapacity();
-    if (next == -1 || next >= capacity) {
+    assert(next >= -1);
+    if (next == -1 || (size_t)next >= capacity) {
       storage.resize(2 * capacity);
 
       AllocationTable* ancestor = parent;