COMP: Gcc 11+ potential fix - see #2434

2022-06-09 11:56:26 +01:00 · 2022-06-09 11:56:26 +01:00 · e93f3f6812
commit e93f3f6812
parent 1949a31efb
1 changed files with 4 additions and 0 deletions
--- a/src/OpenFOAM/primitives/Tensor/TensorI.H
+++ b/src/OpenFOAM/primitives/Tensor/TensorI.H
@ -641,6 +641,10 @@ operator&(const Tensor<Cmpt>& t1, const Tensor<Cmpt>& t2)


 template<class Cmpt>
+#if defined(__GNUC__) && !defined(__clang__)
+// Workaround for gcc (11+) that fails to handle tensor dot vector
+__attribute__((optimize("no-tree-vectorize")))
+#endif
 inline typename innerProduct<Tensor<Cmpt>, Vector<Cmpt>>::type
 operator&(const Tensor<Cmpt>& t, const Vector<Cmpt>& v)
 {