From 54d9969b4ce25c04700503cac465842ede798317 Mon Sep 17 00:00:00 2001
From: Jarred Sumner <jarred@jarredsumner.com>
Date: Fri, 28 May 2021 13:33:02 -0700
Subject: [PATCH] Fix integer overflow

---
 src/js_parser/js_parser.zig | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/js_parser/js_parser.zig b/src/js_parser/js_parser.zig
index ec9883f3fe..21c045fe88 100644
--- a/src/js_parser/js_parser.zig
+++ b/src/js_parser/js_parser.zig
@@ -10816,9 +10816,9 @@ pub const P = struct {
 
     pub fn ignoreUsage(p: *P, ref: Ref) void {
         if (!p.is_control_flow_dead) {
-            p.symbols.items[ref.inner_index].use_count_estimate = std.math.max(p.symbols.items[ref.inner_index].use_count_estimate - 1, 0);
+            p.symbols.items[ref.inner_index].use_count_estimate = std.math.max(p.symbols.items[ref.inner_index].use_count_estimate, 1) - 1;
             var use = p.symbol_uses.get(ref) orelse p.panic("Expected symbol_uses to exist {s}\n{s}", .{ ref, p.symbol_uses });
-            use.count_estimate = std.math.max(use.count_estimate - 1, 0);
+            use.count_estimate = std.math.max(use.count_estimate, 1) - 1;
             if (use.count_estimate == 0) {
                 _ = p.symbol_uses.remove(ref);
             } else {