From b7698a49c2a9e732fa02c7ebee98ca5c7173b5fc Mon Sep 17 00:00:00 2001
From: Daniel Dunbar <daniel@zuster.org>
Date: Mon, 2 Aug 2010 00:39:42 +0000
Subject: [PATCH] tests: Add an 'llvm-lit' tool (script), which gets generated
 as part of the build and has the object build directory baked into it. This
 allows 'llvm-lit' to properly find the information needed to run the test
 suite in all cases, without requiring the user to have LLVM or 'lit'
 available in their PATH, for example.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110000 91177308-0d34-0410-b5e6-96231b3b80d8
---
 utils/Makefile             |  3 ++-
 utils/llvm-lit/Makefile    | 21 +++++++++++++++++++++
 utils/llvm-lit/llvm-lit.in | 21 +++++++++++++++++++++
 3 files changed, 44 insertions(+), 1 deletion(-)
 create mode 100644 utils/llvm-lit/Makefile
 create mode 100644 utils/llvm-lit/llvm-lit.in

diff --git a/utils/Makefile b/utils/Makefile
index 000705ead23..0d5cd28b61a 100644
--- a/utils/Makefile
+++ b/utils/Makefile
@@ -8,7 +8,8 @@
 ##===----------------------------------------------------------------------===##
 
 LEVEL = ..
-PARALLEL_DIRS := TableGen fpcmp PerfectShuffle FileCheck FileUpdate count not unittest
+PARALLEL_DIRS := FileCheck FileUpdate TableGen PerfectShuffle \
+	      count fpcmp llvm-lit not unittest
 
 EXTRA_DIST := cgiplotNLT.pl check-each-file codegen-diff countloc.sh cvsupdate \
               DSAclean.py DSAextract.py emacs findsym.pl GenLibDeps.pl \
diff --git a/utils/llvm-lit/Makefile b/utils/llvm-lit/Makefile
new file mode 100644
index 00000000000..3b96809c5ba
--- /dev/null
+++ b/utils/llvm-lit/Makefile
@@ -0,0 +1,21 @@
+##===- utils/llvm-lit/Makefile -----------------------------*- Makefile -*-===##
+# 
+#                     The LLVM Compiler Infrastructure
+#
+# This file is distributed under the University of Illinois Open Source
+# License. See LICENSE.TXT for details.
+# 
+##===----------------------------------------------------------------------===##
+
+LEVEL = ../..
+
+include $(LEVEL)/Makefile.common
+
+all:: $(ToolDir)/llvm-lit
+
+$(ToolDir)/llvm-lit: llvm-lit.in $(ObjDir)/.dir
+	$(Echo) "Creating 'llvm-lit' script..."
+	$(Verb)sed -e "s#@LLVM_SOURCE_DIR@#$(LLVM_SRC_ROOT)#g" \
+	     -e "s#@LLVM_BINARY_DIR@#$(LLVM_OBJ_ROOT)#g" \
+	     $< > $@
+	$(Verb)chmod +x $@
diff --git a/utils/llvm-lit/llvm-lit.in b/utils/llvm-lit/llvm-lit.in
new file mode 100644
index 00000000000..3ff2c2489c4
--- /dev/null
+++ b/utils/llvm-lit/llvm-lit.in
@@ -0,0 +1,21 @@
+#!/usr/bin/env python
+
+import os
+import sys
+
+# Variables configured at build time.
+llvm_source_root = "@LLVM_SOURCE_DIR@"
+llvm_obj_root = "@LLVM_BINARY_DIR@"
+
+# Make sure we can find the lit package.
+sys.path.append(os.path.join(llvm_source_root, 'utils', 'lit'))
+
+# Set up some builtin parameters, so that by default the LLVM test suite
+# configuration file knows how to find the object tree.
+builtin_parameters = {
+    'llvm_site_config' : os.path.join(llvm_obj_root, 'test', 'lit.site.cfg')
+    }
+
+if __name__=='__main__':
+    import lit
+    lit.main(builtin_parameters)