[IN PROGRESS] Fix premerge script so certain projects appear in LLVM_ENABLE_RUNTIMES.

[amykhuang]

Putting libc in "LLVM_ENABLE_PROJECTS" instead of "LLVM_ENABLE_RUNTIMES" is deprecated.
The script has some logic already for doing this correctly but libc was still appearing in LLVM_ENABLE_PROJECTS.

[github-actions]

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darker --check --diff -r HEAD~1...HEAD .ci/compute_projects.py .ci/compute_projects_test.py

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--- compute_projects.py	2025-06-25 22:10:42.000000 +0000
+++ compute_projects.py	2025-06-25 22:13:45.823400 +0000
@@ -51,20 +51,20 @@
     # TODO(issues/132795): LLDB should be enabled on clang changes.
     "clang": {"clang-tools-extra", "cross-project-tests"},
     "mlir": {"flang"},
     # Test everything if ci scripts are changed.
     ".ci": {
-#        "llvm",
-#        "clang",
-#        "lld",
-#        "lldb",
-#        "bolt",
-#        "clang-tools-extra",
-#        "mlir",
-#        "polly",
-#        "flang",
-#        "libclc",
+        #        "llvm",
+        #        "clang",
+        #        "lld",
+        #        "lldb",
+        #        "bolt",
+        #        "clang-tools-extra",
+        #        "mlir",
+        #        "polly",
+        #        "flang",
+        #        "libclc",
         "openmp",
     },
 }
 
 # This mapping describes runtimes that should be enabled for a specific project,
@@ -168,11 +168,11 @@
 
 
 def _compute_projects_to_test(modified_projects: Set[str], platform: str) -> Set[str]:
     projects_to_test = set()
     for modified_project in modified_projects:
-        sys.stderr.write("HELLO " +  modified_project)
+        sys.stderr.write("HELLO " + modified_project)
         if modified_project in RUNTIMES:
             continue
         # Skip all projects where we cannot run tests.
         if modified_project in PROJECT_CHECK_TARGETS:
             projects_to_test.add(modified_project)
@@ -206,12 +206,12 @@
 def _compute_runtimes_to_test(modified_projects: Set[str], platform: str) -> Set[str]:
     runtimes_to_test = set()
     for modified_project in modified_projects:
         if modified_project in DEPENDENT_RUNTIMES_TO_TEST:
             runtimes_to_test.update(DEPENDENT_RUNTIMES_TO_TEST[modified_project])
-#        if modified_project in RUNTIMES:
-#            runtimes_to_test.add(modified_project)
+    #        if modified_project in RUNTIMES:
+    #            runtimes_to_test.add(modified_project)
     return _exclude_projects(runtimes_to_test, platform)
 
 
 def _compute_runtimes_to_test_needs_reconfig(
     modified_projects: Set[str], platform: str

[llvmbot]

@llvm/pr-subscribers-libc

Author: Amy Huang (amykhuang)

Changes

Putting libc in "LLVM_ENABLE_PROJECTS" instead of "LLVM_ENABLE_RUNTIMES" is deprecated.
The script has some logic already for doing this correctly but libc was still appearing in LLVM_ENABLE_PROJECTS.

---

Full diff: https://github.com/llvm/llvm-project/pull/145754.diff

2 Files Affected:

• (modified) .ci/compute_projects.py (+13-10)
• (modified) libc/src/math/exp10f.h (+2)

diff --git a/.ci/compute_projects.py b/.ci/compute_projects.py
index 80e4e0221b3d7..ea42432704931 100644
--- a/.ci/compute_projects.py
+++ b/.ci/compute_projects.py
@@ -53,16 +53,16 @@
     "mlir": {"flang"},
     # Test everything if ci scripts are changed.
     ".ci": {
-        "llvm",
-        "clang",
-        "lld",
-        "lldb",
-        "bolt",
-        "clang-tools-extra",
-        "mlir",
-        "polly",
-        "flang",
-        "libclc",
+#        "llvm",
+#        "clang",
+#        "lld",
+#        "lldb",
+#        "bolt",
+#        "clang-tools-extra",
+#        "mlir",
+#        "polly",
+#        "flang",
+#        "libclc",
         "openmp",
     },
 }
@@ -170,6 +170,7 @@ def _exclude_projects(current_projects: Set[str], platform: str) -> Set[str]:
 def _compute_projects_to_test(modified_projects: Set[str], platform: str) -> Set[str]:
     projects_to_test = set()
     for modified_project in modified_projects:
+        sys.stderr.write("HELLO " +  modified_project)
         if modified_project in RUNTIMES:
             continue
         # Skip all projects where we cannot run tests.
@@ -207,6 +208,8 @@ def _compute_runtimes_to_test(modified_projects: Set[str], platform: str) -> Set
     for modified_project in modified_projects:
         if modified_project in DEPENDENT_RUNTIMES_TO_TEST:
             runtimes_to_test.update(DEPENDENT_RUNTIMES_TO_TEST[modified_project])
+        if modified_project in RUNTIMES:
+            runtimes_to_test.add(modified_project)
     return _exclude_projects(runtimes_to_test, platform)
 
 
diff --git a/libc/src/math/exp10f.h b/libc/src/math/exp10f.h
index 0e537421c66a9..44789ba291823 100644
--- a/libc/src/math/exp10f.h
+++ b/libc/src/math/exp10f.h
@@ -11,6 +11,8 @@
 
 #include "src/__support/macros/config.h"
 
+// test change to trigger premerge
+
 namespace LIBC_NAMESPACE_DECL {
 
 float exp10f(float x);