[Polly] [Tests] Update `lit.cfg` uses of `lit.util.capture` to `subprocess.check_output`

- `lit.util.capture` was removed in `r306625`.
- Replace `lit.util.capture` to `subprocess.check_output` as LLVM did.
- LLVM revision of this change: `https://reviews.llvm.org/D35088`.

Differential Revision: https://reviews.llvm.org/D35255

llvm-svn: 307765

diff --git a/polly/test/lit.cfg b/polly/test/lit.cfg
index dc98292..ac4eeee 100644 (file)
--- a/polly/test/lit.cfg
+++ b/polly/test/lit.cfg
@@ -3,6 +3,7 @@
 import os
 import platform
 import re
+import subprocess
 
 import lit.formats
 import lit.util
@@ -80,8 +81,9 @@ if config.test_exec_root is None:
         lit_config.fatal('No site specific configuration available!')
 
     # Get the source and object roots.
-    llvm_src_root = lit.util.capture(['llvm-config', '--src-root']).strip()
-    llvm_obj_root = lit.util.capture(['llvm-config', '--obj-root']).strip()
+    llvm_src_root = subprocess.check_output(['llvm-config', '--src-root']).decode("utf-8").strip()
+    llvm_obj_root = subprocess.check_output(['llvm-config', '--obj-root']).decode("utf-8").strip()
+
     polly_src_root = os.path.join(llvm_src_root, "tools", "polly")
     polly_obj_root = os.path.join(llvm_obj_root, "tools", "polly")