subject:"\[PATCH\] RISC\-V\: Increase cost for vec_construct \[PR118019\]."

??????[PATCH] RISC-V: Increase cost for vec_construct [PR118019].

2024-12-13 Thread ??????

Could you add testcase and dump tree check?? --Reply to Message-- On Fri, Dec 13, 2024 19:47 PM Robin Dapp

[PATCH] RISC-V: Increase cost for vec_construct [PR118019].

2024-12-13 Thread Robin Dapp

Hi, for a generic vec_construct from scalar elements we need to load each scalar element and move it over to a vector register. This patch uses register-move cost and scalar_to_vec and multiplies it with the number of elements in the vector. This helps vectorization of e.g. x264 SATD with the def