diff --git a/Cargo.lock b/Cargo.lock
index bc0d08a..e00478e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,6 +1,6 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
-version = 3
+version = 4
 
 [[package]]
 name = "aho-corasick"
@@ -290,6 +290,12 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "diff"
+version = "0.1.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "56254986775e3233ffa9c4d7d3faaf6d36a2c09d30b20687e9f88bc8bafc16c8"
+
 [[package]]
 name = "dynasm"
 version = "1.2.3"
@@ -573,6 +579,16 @@ version = "1.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cc9c68a3f6da06753e9335d63e27f6b9754dd1920d941135b7ea8224f141adb2"
 
+[[package]]
+name = "pretty_assertions"
+version = "1.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3ae130e2f271fbc2ac3a40fb1d07180839cdbbe443c7a27e1e3c13c5cac0116d"
+dependencies = [
+ "diff",
+ "yansi",
+]
+
 [[package]]
 name = "prettyplease"
 version = "0.2.25"
@@ -643,6 +659,7 @@ dependencies = [
  "hip_runtime-sys",
  "llvm_zluda",
  "paste",
+ "pretty_assertions",
  "ptx_parser",
  "quick-error",
  "rustc-hash 2.0.0",
@@ -1114,6 +1131,12 @@ dependencies = [
  "serde_json",
 ]
 
+[[package]]
+name = "yansi"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cfe53a6657fd280eaa890a3bc59152892ffa3e30101319d168b781ed6529b049"
+
 [[package]]
 name = "zluda"
 version = "0.0.0"
diff --git a/ptx/Cargo.toml b/ptx/Cargo.toml
index 9f3fa02..08ae693 100644
--- a/ptx/Cargo.toml
+++ b/ptx/Cargo.toml
@@ -24,3 +24,4 @@ comgr = { path = "../comgr" }
 tempfile = "3"
 paste = "1.0"
 cuda-driver-sys = "0.3.0"
+pretty_assertions = "1.4.1"
\ No newline at end of file
diff --git a/ptx/src/test/spirv_run/mod.rs b/ptx/src/test/spirv_run/mod.rs
index 2ca6ad4..9131188 100644
--- a/ptx/src/test/spirv_run/mod.rs
+++ b/ptx/src/test/spirv_run/mod.rs
@@ -6,6 +6,7 @@ use std::fmt;
 use std::fmt::{Debug, Display, Formatter};
 use std::mem;
 use std::{ptr, str};
+use pretty_assertions;
 
 macro_rules! test_ptx {
     ($fn_name:ident, $input:expr, $output:expr) => {
@@ -242,7 +243,7 @@ fn test_llvm_assert<
     let ast = ptx_parser::parse_module_checked(ptx_text).unwrap();
     let llvm_ir = pass::to_llvm_module(ast).unwrap();
     let actual_ll = llvm_ir.llvm_ir.print_as_asm();
-    assert_eq!(actual_ll, expected_ll);
+    pretty_assertions::assert_eq!(actual_ll, expected_ll);
     Ok(())
 }