Module: Mesa Branch: master Commit: acab788578cd1ccd67b042798786a39394ad5f03 URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=acab788578cd1ccd67b042798786a39394ad5f03
Author: Alyssa Rosenzweig <alyssa.rosenzw...@collabora.com> Date: Tue Mar 10 07:56:14 2020 -0400 pan/bi: Disable lower_sub For float, fixing up the modifier ourselves is easy. For int, we have a dedicated isub instruction anyway. Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzw...@collabora.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4139> --- src/panfrost/bifrost/bifrost_compile.c | 4 ++++ src/panfrost/bifrost/bifrost_compile.h | 1 - 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/src/panfrost/bifrost/bifrost_compile.c b/src/panfrost/bifrost/bifrost_compile.c index 759f650f245..6fa982e50f4 100644 --- a/src/panfrost/bifrost/bifrost_compile.c +++ b/src/panfrost/bifrost/bifrost_compile.c @@ -231,6 +231,7 @@ bi_class_for_nir_alu(nir_op op) switch (op) { case nir_op_iadd: case nir_op_fadd: + case nir_op_fsub: return BI_ADD; case nir_op_i2i8: @@ -361,6 +362,9 @@ emit_alu(bi_context *ctx, nir_alu_instr *instr) case nir_op_fabs: alu.src_abs[0] = true; /* MOV */ break; + case nir_op_fsub: + alu.src_neg[1] = true; /* ADD */ + break; case nir_op_fmax: case nir_op_imax: case nir_op_umax: diff --git a/src/panfrost/bifrost/bifrost_compile.h b/src/panfrost/bifrost/bifrost_compile.h index f06e0b58700..8f1e9f1bc8d 100644 --- a/src/panfrost/bifrost/bifrost_compile.h +++ b/src/panfrost/bifrost/bifrost_compile.h @@ -35,7 +35,6 @@ void bifrost_compile_shader_nir(nir_shader *nir, bifrost_program *program, unsig static const nir_shader_compiler_options bifrost_nir_options = { .lower_ffma = true, - .lower_sub = true, .lower_scmp = true, .lower_flrp32 = true, .lower_flrp64 = true, _______________________________________________ mesa-commit mailing list mesa-commit@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/mesa-commit
