[llvm] [LIT] Add support for `%basename_s` to get base name of source file (PR #110993)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-testing-tools

Author: Rahul Joshi (jurahul)

<details>
<summary>Changes</summary>

Add support for `%basename_s` pattern in the RUN commands to get the base name of the source file, and adopt it in a TableGen LIT test.

---
Full diff: https://github.com/llvm/llvm-project/pull/110993.diff


3 Files Affected:

- (modified) llvm/docs/CommandGuide/lit.rst (+1) 
- (modified) llvm/test/TableGen/anonymous-location.td (+1-1) 
- (modified) llvm/utils/lit/lit/TestRunner.py (+4-2) 


``````````diff
diff --git a/llvm/docs/CommandGuide/lit.rst b/llvm/docs/CommandGuide/lit.rst
index c9d5baba3e2f49..9216eb223d1491 100644
--- a/llvm/docs/CommandGuide/lit.rst
+++ b/llvm/docs/CommandGuide/lit.rst
@@ -535,6 +535,7 @@ TestRunner.py:
  %{fs-tmp-root}          root component of file system paths pointing to the test's temporary directory
  %{fs-sep}               file system path separator
  %t                      temporary file name unique to the test
+ %basename_s             The last path component of %s
  %basename_t             The last path component of %t but without the ``.tmp`` extension
  %T                      parent directory of %t (not unique, deprecated, do not use)
  %%                      %
diff --git a/llvm/test/TableGen/anonymous-location.td b/llvm/test/TableGen/anonymous-location.td
index ffeba6ebcb686f..5485d2027b9fd0 100644
--- a/llvm/test/TableGen/anonymous-location.td
+++ b/llvm/test/TableGen/anonymous-location.td
@@ -1,4 +1,4 @@
-// RUN: llvm-tblgen --print-detailed-records %s | FileCheck %s -DFILE=anonymous-location.td
+// RUN: llvm-tblgen --print-detailed-records %s | FileCheck %s -DFILE=%basename_s
 
 class A<int a> {
   int Num = a;
diff --git a/llvm/utils/lit/lit/TestRunner.py b/llvm/utils/lit/lit/TestRunner.py
index a1785073547ad0..080a618572645d 100644
--- a/llvm/utils/lit/lit/TestRunner.py
+++ b/llvm/utils/lit/lit/TestRunner.py
@@ -1394,10 +1394,12 @@ def getDefaultSubstitutions(test, tmpDir, tmpBase, normalize_slashes=False):
     substitutions = []
     substitutions.extend(test.config.substitutions)
     tmpName = tmpBase + ".tmp"
-    baseName = os.path.basename(tmpBase)
+    tmpBaseName = os.path.basename(tmpBase)
+    sourceBaseName = os.path.basename(sourcepath)
 
     substitutions.append(("%{pathsep}", os.pathsep))
-    substitutions.append(("%basename_t", baseName))
+    substitutions.append(("%basename_t", tmpBaseName))
+    substitutions.append(("%basename_s", sourceBaseName))
 
     substitutions.extend(
         [

``````````

</details>


https://github.com/llvm/llvm-project/pull/110993