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ba2ec1f369
Instead of emitting 1.0 / x which includes a slow division that LLVM doesn't always optimize even if the metadata is correctly set. No pipeline-db changes with VEGA10/LLVM 9. pipeline-db (VEGA10/LLVM 10): Totals from affected shaders: SGPRS: 6672 -> 6672 (0.00 %) VGPRS: 6652 -> 6652 (0.00 %) Spilled SGPRs: 0 -> 0 (0.00 %) Spilled VGPRs: 0 -> 0 (0.00 %) Code Size: 561780 -> 561692 (-0.02 %) bytes Max Waves: 1043 -> 1043 (0.00 %) pipeline-db (VEGA10/LLVM 11 - 92744f62478): Totals from affected shaders: SGPRS: 84608 -> 83768 (-0.99 %) VGPRS: 106768 -> 106636 (-0.12 %) Spilled SGPRs: 1625 -> 1713 (5.42 %) Spilled VGPRs: 0 -> 0 (0.00 %) Code Size: 10850936 -> 10726712 (-1.14 %) bytes Max Waves: 3152 -> 3180 (0.89 %) LLVM 11 (master) is more affected than previous versions, but based on the small impact with LLVM 9/10, I decided to emit it unconditionally. Cc: 20.0 <mesa-stable@lists.freedesktop.org> Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com> Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl> Reviewed-by: Marek Olšák <marek.olsak@amd.com> Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4326> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4326> |
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| .. | ||
| ac_llvm_build.c | ||
| ac_llvm_build.h | ||
| ac_llvm_cull.c | ||
| ac_llvm_cull.h | ||
| ac_llvm_helper.cpp | ||
| ac_llvm_util.c | ||
| ac_llvm_util.h | ||
| ac_nir_to_llvm.c | ||
| ac_nir_to_llvm.h | ||
| ac_shader_abi.h | ||
| meson.build | ||