[GCC14] Avoid std::clamp in device code

cms-sw · Feb 5, 2025 · 4d90f6a · 4d90f6a
1 parent e740ec1
commit 4d90f6a
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/RecoVertex/PixelVertexFinding/plugins/alpaka/clusterTracksByDensity.h b/RecoVertex/PixelVertexFinding/plugins/alpaka/clusterTracksByDensity.h
@@ -76,7 +76,11 @@ namespace ALPAKA_ACCELERATOR_NAMESPACE::vertexFinder {
     // fill hist (bin shall be wider than "eps")
     for (auto i : cms::alpakatools::uniform_elements(acc, nt)) {
       int iz = static_cast<int>(zt[i] * 10.f);  // valid if eps <= 0.1
-      iz = std::clamp(iz, INT8_MIN, INT8_MAX);
+      // Equivalent of iz = std::clamp(iz, INT8_MIN, INT8_MAX)
+      // which doesn't compile with gcc14 due to reference to __glibcxx_assert
+      // See https://github.com/llvm/llvm-project/issues/95183
+      int tmp_max = std::max<int>(iz, INT8_MIN);
+      iz = std::min<int>(iz, INT8_MAX);
       ALPAKA_ASSERT_ACC(iz - INT8_MIN >= 0);
       ALPAKA_ASSERT_ACC(iz - INT8_MIN < 256);
       izt[i] = iz - INT8_MIN;