From c801c569dc2b264ee4b6db024155093ea1d616d0 Mon Sep 17 00:00:00 2001
From: Trevor Gross <tmgross@umich.edu>
Date: Sun, 18 May 2025 15:42:35 +0000
Subject: [PATCH] Do not run `rustfmt` on the `compiler-builtins` subtree

This will get checked in the compiler-builtins repository. The rules are
slightly different from rust-lang/rust since `use_small_heuristics =
"Max"` tends to create difficult to read output with math-heavy code
(e.g.  multiple `if` statements with numbers are small enough that they
sometimes get collapsed into a single line).
---
 rustfmt.toml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/rustfmt.toml b/rustfmt.toml
index d9857a7e3e78..689e390b990c 100644
--- a/rustfmt.toml
+++ b/rustfmt.toml
@@ -29,6 +29,7 @@ ignore = [
 
     # Do not format submodules.
     "library/backtrace",
+    "library/compiler-builtins",
     "library/portable-simd",
     "library/stdarch",
     "src/doc/book",