[clang] Revert "[Clang] [Test] Use lit Syntax for Environment Variables in Clang subproject" (PR #106267)

[via cfe-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->
@llvm/pr-subscribers-clang-driver

@llvm/pr-subscribers-clang

Author: None (Harini0924)

<details>
<summary>Changes</summary>

Reverts llvm/llvm-project#<!-- -->102647

I am reverting this change because the `readfile` doesn't actually perform any useful operation, and yet, for some reason, the test still passed. This indicates that the modification was unnecessary and could lead to confusion or unexpected behavior in the future.

---
Full diff: https://github.com/llvm/llvm-project/pull/106267.diff


3 Files Affected:

- (modified) clang/test/ClangScanDeps/pr61006.cppm (+5-5) 
- (modified) clang/test/Driver/coverage.c (+2-2) 
- (modified) clang/test/Driver/program-path-priority.c (+2-2) 


``````````diff
diff --git a/clang/test/ClangScanDeps/pr61006.cppm b/clang/test/ClangScanDeps/pr61006.cppm
index 9ce6edaf2010e1..f75edd38c81ba9 100644
--- a/clang/test/ClangScanDeps/pr61006.cppm
+++ b/clang/test/ClangScanDeps/pr61006.cppm
@@ -6,13 +6,13 @@
 // RUN: mkdir -p %t
 // RUN: split-file %s %t
 //
-// RUN: %clang -print-resource-dir > %t/resource-dir.txt && \
+// RUN: EXPECTED_RESOURCE_DIR=`%clang -print-resource-dir` && \
 // RUN: ln -s %clang++ %t/clang++ && \
-// RUN: sed "s|EXPECTED_RESOURCE_DIR|%{readfile:%t/resource-dir.txt}|g; s|DIR|%/t|g" %t/P1689.json.in > %t/P1689.json && \
-// RUN: env EXPECTED_RESOURCE_DIR=%{readfile:%t/resource-dir.txt} clang-scan-deps -compilation-database %t/P1689.json -format=p1689 | FileCheck %t/a.cpp -DPREFIX=%/t && \
-// RUN: env EXPECTED_RESOURCE_DIR=%{readfile:%t/resource-dir.txt} clang-scan-deps -format=p1689 \
+// RUN: sed "s|EXPECTED_RESOURCE_DIR|$EXPECTED_RESOURCE_DIR|g; s|DIR|%/t|g" %t/P1689.json.in > %t/P1689.json && \
+// RUN: clang-scan-deps -compilation-database %t/P1689.json -format=p1689 | FileCheck %t/a.cpp -DPREFIX=%/t && \
+// RUN: clang-scan-deps -format=p1689 \
 // RUN:   -- %t/clang++ -std=c++20 -c -fprebuilt-module-path=%t %t/a.cpp -o %t/a.o \
-// RUN:      -resource-dir %{env:EXPECTED_RESOURCE_DIR} | FileCheck %t/a.cpp -DPREFIX=%/t
+// RUN:      -resource-dir $EXPECTED_RESOURCE_DIR | FileCheck %t/a.cpp -DPREFIX=%/t
 
 //--- P1689.json.in
 [
diff --git a/clang/test/Driver/coverage.c b/clang/test/Driver/coverage.c
index ab791ada2d351a..e5ed064aab457c 100644
--- a/clang/test/Driver/coverage.c
+++ b/clang/test/Driver/coverage.c
@@ -18,7 +18,7 @@
 // GCNO-LOCATION-REL: "-coverage-notes-file={{.*}}{{/|\\\\}}foo/bar.gcno"
 
 /// GCC allows PWD to change the paths.
-// RUN: %if system-linux %{ env PWD=/proc/self/cwd %clang -### -c --coverage %s -o foo/bar.o 2>&1 | FileCheck --check-prefix=PWD %s %}
+// RUN: %if system-linux %{ PWD=/proc/self/cwd %clang -### -c --coverage %s -o foo/bar.o 2>&1 | FileCheck --check-prefix=PWD %s %}
 // PWD: "-coverage-notes-file=/proc/self/cwd/foo/bar.gcno" "-coverage-data-file=/proc/self/cwd/foo/bar.gcda"
 
 /// Don't warn -Wunused-command-line-argument.
@@ -50,6 +50,6 @@
 // LINK2: -cc1{{.*}} "-coverage-notes-file={{.*}}{{/|\\\\}}f/gb.gcno" "-coverage-data-file={{.*}}{{/|\\\\}}f/gb.gcda"
 
 /// GCC allows PWD to change the paths.
-// RUN: %if system-linux %{ env PWD=/proc/self/cwd %clang -### --coverage d/a.c d/b.c -o e/x -fprofile-dir=f 2>&1 | FileCheck %s --check-prefix=LINK3 %}
+// RUN: %if system-linux %{ PWD=/proc/self/cwd %clang -### --coverage d/a.c d/b.c -o e/x -fprofile-dir=f 2>&1 | FileCheck %s --check-prefix=LINK3 %}
 // LINK3: -cc1{{.*}} "-coverage-notes-file=/proc/self/cwd/e/x-a.gcno" "-coverage-data-file=f/proc/self/cwd/e/x-a.gcda"
 // LINK3: -cc1{{.*}} "-coverage-notes-file=/proc/self/cwd/e/x-b.gcno" "-coverage-data-file=f/proc/self/cwd/e/x-b.gcda"
diff --git a/clang/test/Driver/program-path-priority.c b/clang/test/Driver/program-path-priority.c
index 358a06d7c6d1b5..c940c4ced94420 100644
--- a/clang/test/Driver/program-path-priority.c
+++ b/clang/test/Driver/program-path-priority.c
@@ -87,8 +87,8 @@
 
 /// <default-triple>-gcc has lowest priority so <triple>-gcc
 /// on PATH beats default triple in program path
-// RUN: %t/clang --version | grep "Target:" | cut -d ' ' -f2 > %t/default-triple.txt
-// RUN: env DEFAULT_TRIPLE=%{readfile:%t/default-triple.txt} touch %t/%{env:DEFAULT_TRIPLE}-gcc && chmod +x %t/%{env:DEFAULT_TRIPLE}-gcc
+// RUN: DEFAULT_TRIPLE=`%t/clang --version | grep "Target:" | cut -d ' ' -f2`
+// RUN: touch %t/$DEFAULT_TRIPLE-gcc && chmod +x %t/$DEFAULT_TRIPLE-gcc
 // RUN: touch %t/%target_triple-gcc && chmod +x %t/%target_triple-gcc
 // RUN: env "PATH=%t/env/" %t/clang -### -target notreal-none-elf %s 2>&1 | \
 // RUN:   FileCheck --check-prefix=DEFAULT_TRIPLE_GCC %s

``````````

</details>


https://github.com/llvm/llvm-project/pull/106267