From 2aac53032750f4cc7a6d5904633f2606afc4607b Mon Sep 17 00:00:00 2001
From: Brendan Hansknecht <brendan.hansknecht@gmail.com>
Date: Sat, 11 Sep 2021 19:02:15 -0700
Subject: [PATCH] Change the default roc allocator to mimalloc

---
 Cargo.lock      | 19 +++++++++++++++++++
 cli/Cargo.toml  |  1 +
 cli/src/main.rs |  3 +++
 3 files changed, 23 insertions(+)

diff --git a/Cargo.lock b/Cargo.lock
index 272d75e8ea..5a26a1d7d0 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2026,6 +2026,15 @@ dependencies = [
  "winapi 0.3.9",
 ]
 
+[[package]]
+name = "libmimalloc-sys"
+version = "0.1.22"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1d1b8479c593dba88c2741fc50b92e13dbabbbe0bd504d979f244ccc1a5b1c01"
+dependencies = [
+ "cc",
+]
+
 [[package]]
 name = "linked-hash-map"
 version = "0.5.4"
@@ -2170,6 +2179,15 @@ dependencies = [
  "objc",
 ]
 
+[[package]]
+name = "mimalloc"
+version = "0.1.26"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fb74897ce508e6c49156fd1476fc5922cbc6e75183c65e399c765a09122e5130"
+dependencies = [
+ "libmimalloc-sys",
+]
+
 [[package]]
 name = "minimal-lexical"
 version = "0.1.3"
@@ -3432,6 +3450,7 @@ dependencies = [
  "libc",
  "libloading 0.6.7",
  "maplit",
+ "mimalloc",
  "pretty_assertions 0.5.1",
  "quickcheck 0.8.5",
  "quickcheck_macros 0.8.0",
diff --git a/cli/Cargo.toml b/cli/Cargo.toml
index a98ab09045..0225a11916 100644
--- a/cli/Cargo.toml
+++ b/cli/Cargo.toml
@@ -67,6 +67,7 @@ im-rc = "14" # im and im-rc should always have the same version!
 bumpalo = { version = "3.2", features = ["collections"] }
 libc = "0.2"
 libloading = "0.6"
+mimalloc = { version = "0.1.26", default-features = false }
 
 inkwell = { path = "../vendor/inkwell", optional = true }
 target-lexicon = "0.12.2"
diff --git a/cli/src/main.rs b/cli/src/main.rs
index cd9cac0752..5a699a3f57 100644
--- a/cli/src/main.rs
+++ b/cli/src/main.rs
@@ -6,6 +6,9 @@ use std::fs::{self, FileType};
 use std::io;
 use std::path::{Path, PathBuf};
 
+#[global_allocator]
+static ALLOC: mimalloc::MiMalloc = mimalloc::MiMalloc;
+
 #[cfg(feature = "llvm")]
 use roc_cli::build;
 use std::ffi::{OsStr, OsString};