[libcxx-commits] [libcxx] [libc++] Turn off PIE when running libc++ premerge tests. (PR #155689)

[via libcxx-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-libcxx

Author: None (cmtice)

<details>
<summary>Changes</summary>

Turning off PIE for the LLVM premerge tests gave us an 8-10% run time improvement on Linux. Hopefully it can also improve the libc++ premerge test run times.

---
Full diff: https://github.com/llvm/llvm-project/pull/155689.diff


1 Files Affected:

- (modified) libcxx/utils/ci/run-buildbot (+1) 


``````````diff
diff --git a/libcxx/utils/ci/run-buildbot b/libcxx/utils/ci/run-buildbot
index 57ecf1e49dbf2..3adca747b310e 100755
--- a/libcxx/utils/ci/run-buildbot
+++ b/libcxx/utils/ci/run-buildbot
@@ -148,6 +148,7 @@ function generate-cmake() {
           -DLLVM_ENABLE_RUNTIMES="libcxx;libcxxabi;libunwind" \
           -DLIBCXX_CXX_ABI=libcxxabi \
           -DCMAKE_EXPORT_COMPILE_COMMANDS=ON \
+          -DCMAKE_EXE_LINKER_FLAGS="-no-pie" \
           "${@}"
 }
 

``````````

</details>


https://github.com/llvm/llvm-project/pull/155689