From d76fe462f6fe40b374e992b86b9c12b0db861179 Mon Sep 17 00:00:00 2001
From: Jon Meow <46229924+jonmeow@users.noreply.github.com>
Date: Thu, 27 Jan 2022 12:49:44 -0800
Subject: [PATCH] Have FileCheck dump all input on errors. (#1050)

I'm hoping this improves debugability.
---
 executable_semantics/testdata/lit.cfg.py | 5 ++++-
 toolchain/driver/testdata/lit.cfg.py     | 5 ++++-
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/executable_semantics/testdata/lit.cfg.py b/executable_semantics/testdata/lit.cfg.py
index ad4ba539ab49..088dd25e8ac0 100644
--- a/executable_semantics/testdata/lit.cfg.py
+++ b/executable_semantics/testdata/lit.cfg.py
@@ -35,5 +35,8 @@ config.substitutions.append(
 )
 config.substitutions.append(("%{not}", fullpath("llvm-project/llvm/not")))
 config.substitutions.append(
-    ("%{FileCheck}", fullpath("llvm-project/llvm/FileCheck"))
+    (
+        "%{FileCheck}",
+        fullpath("llvm-project/llvm/FileCheck --dump-input-filter=all"),
+    )
 )
diff --git a/toolchain/driver/testdata/lit.cfg.py b/toolchain/driver/testdata/lit.cfg.py
index 47c48bd43242..e975c265d658 100644
--- a/toolchain/driver/testdata/lit.cfg.py
+++ b/toolchain/driver/testdata/lit.cfg.py
@@ -28,5 +28,8 @@ config.substitutions.append(
 )
 config.substitutions.append(("%{not}", fullpath("llvm-project/llvm/not")))
 config.substitutions.append(
-    ("%{FileCheck}", fullpath("llvm-project/llvm/FileCheck"))
+    (
+        "%{FileCheck}",
+        fullpath("llvm-project/llvm/FileCheck --dump-input-filter=all"),
+    )
 )