From 4acb394f459b58725a2059a911b6236703c44eb2 Mon Sep 17 00:00:00 2001 From: Jason Ekstrand Date: Fri, 18 Dec 2015 12:25:53 +0000 Subject: [PATCH] i965/nir: Remove unused indirect handling The one and only place where the FS backend allows reladdr is on uniforms. For locals, inputs, and outputs, we lower it away before the backend ever sees it. This commit gets rid of the dead indirect handling code. Cc: "11.0" Reviewed-by: Kenneth Graunke (cherry picked from commit 22c273de2b97743587310f7bbf66767191bde866) [Emil Velikov: squash trivial conflicts] Signed-off-by: Emil Velikov Conflicts: src/mesa/drivers/dri/i965/brw_fs_nir.cpp --- src/mesa/drivers/dri/i965/brw_fs_nir.cpp | 44 ++++++------------------ 1 file changed, 11 insertions(+), 33 deletions(-) diff --git a/src/mesa/drivers/dri/i965/brw_fs_nir.cpp b/src/mesa/drivers/dri/i965/brw_fs_nir.cpp index 1230383c480..6b6820f7a55 100644 --- a/src/mesa/drivers/dri/i965/brw_fs_nir.cpp +++ b/src/mesa/drivers/dri/i965/brw_fs_nir.cpp @@ -1131,28 +1131,6 @@ fs_visitor::nir_emit_undef(const fs_builder &bld, nir_ssa_undef_instr *instr) instr->def.num_components); } -static fs_reg -fs_reg_for_nir_reg(fs_visitor *v, nir_register *nir_reg, - unsigned base_offset, nir_src *indirect) -{ - fs_reg reg; - - assert(!nir_reg->is_global); - - reg = v->nir_locals[nir_reg->index]; - - reg = offset(reg, v->bld, base_offset * nir_reg->num_components); - if (indirect) { - int multiplier = nir_reg->num_components * (v->dispatch_width / 8); - - reg.reladdr = new(v->mem_ctx) fs_reg(v->vgrf(glsl_type::int_type)); - v->bld.MUL(*reg.reladdr, v->get_nir_src(*indirect), - fs_reg(multiplier)); - } - - return reg; -} - fs_reg fs_visitor::get_nir_src(nir_src src) { @@ -1160,8 +1138,10 @@ fs_visitor::get_nir_src(nir_src src) if (src.is_ssa) { reg = nir_ssa_values[src.ssa->index]; } else { - reg = fs_reg_for_nir_reg(this, src.reg.reg, src.reg.base_offset, - src.reg.indirect); + /* We don't handle indirects on locals */ + assert(src.reg.indirect == NULL); + reg = offset(nir_locals[src.reg.reg->index], bld, + src.reg.base_offset * src.reg.reg->num_components); } /* to avoid floating-point denorm flushing problems, set the type by @@ -1178,10 +1158,12 @@ fs_visitor::get_nir_dest(nir_dest dest) nir_ssa_values[dest.ssa.index] = bld.vgrf(BRW_REGISTER_TYPE_F, dest.ssa.num_components); return nir_ssa_values[dest.ssa.index]; + } else { + /* We don't handle indirects on locals */ + assert(dest.reg.indirect == NULL); + return offset(nir_locals[dest.reg.reg->index], bld, + dest.reg.base_offset * dest.reg.reg->num_components); } - - return fs_reg_for_nir_reg(this, dest.reg.reg, dest.reg.base_offset, - dest.reg.indirect); } fs_reg @@ -1619,15 +1601,13 @@ fs_visitor::nir_emit_intrinsic(const fs_builder &bld, nir_intrinsic_instr *instr } case nir_intrinsic_load_input_indirect: - has_indirect = true; + unreachable("Not allowed"); /* fallthrough */ case nir_intrinsic_load_input: { unsigned index = 0; for (unsigned j = 0; j < instr->num_components; j++) { fs_reg src = offset(retype(nir_inputs, dest.type), bld, instr->const_index[0] + index); - if (has_indirect) - src.reladdr = new(mem_ctx) fs_reg(get_nir_src(instr->src[0])); index++; bld.MOV(dest, src); @@ -1753,7 +1733,7 @@ fs_visitor::nir_emit_intrinsic(const fs_builder &bld, nir_intrinsic_instr *instr } case nir_intrinsic_store_output_indirect: - has_indirect = true; + unreachable("Not allowed"); /* fallthrough */ case nir_intrinsic_store_output: { fs_reg src = get_nir_src(instr->src[0]); @@ -1761,8 +1741,6 @@ fs_visitor::nir_emit_intrinsic(const fs_builder &bld, nir_intrinsic_instr *instr for (unsigned j = 0; j < instr->num_components; j++) { fs_reg new_dest = offset(retype(nir_outputs, src.type), bld, instr->const_index[0] + index); - if (has_indirect) - src.reladdr = new(mem_ctx) fs_reg(get_nir_src(instr->src[1])); index++; bld.MOV(new_dest, src); src = offset(src, bld, 1);