From 5011373e2b48320abfa5aafbcd9c876f1815060a Mon Sep 17 00:00:00 2001 From: Italo Nicola Date: Wed, 15 Jul 2020 18:43:18 +0000 Subject: [PATCH] pan/mdg: eliminate references to ins->alu.outmod In an effort to simplify MIR by not prepacking instructions, this commit removes references to `ins->alu.outmod` so that we can later remove the `ins->alu` field from midgard_instruction. Every place that was using `ins->alu.outmod` was changed to now use the generic `ins->outmod` field instead. We then reconstruct the outmod field right before emission. Signed-off-by: Italo Nicola Reviewed-by: Alyssa Rosenzweig Part-of: --- src/panfrost/midgard/compiler.h | 10 +++++++--- src/panfrost/midgard/midgard_compile.c | 7 +------ src/panfrost/midgard/midgard_emit.c | 2 ++ src/panfrost/midgard/mir.c | 2 +- 4 files changed, 11 insertions(+), 10 deletions(-) diff --git a/src/panfrost/midgard/compiler.h b/src/panfrost/midgard/compiler.h index 8d7af77..86465d9 100644 --- a/src/panfrost/midgard/compiler.h +++ b/src/panfrost/midgard/compiler.h @@ -178,6 +178,12 @@ typedef struct midgard_instruction { /* Use this in conjunction with `type` */ unsigned op; + /* This refers to midgard_outmod_float or midgard_outmod_int. + * In case of a ALU op, use midgard_is_integer_out_op() to know which + * one is used. + * If it's a texture op, it's always midgard_outmod_float. */ + unsigned outmod; + union { midgard_load_store_word load_store; midgard_vector_alu alu; @@ -556,9 +562,7 @@ v_mov(unsigned src, unsigned dest) .dest = dest, .dest_type = nir_type_uint32, .op = midgard_alu_op_imov, - .alu = { - .outmod = midgard_outmod_int_wrap - }, + .outmod = midgard_outmod_int_wrap }; return ins; diff --git a/src/panfrost/midgard/midgard_compile.c b/src/panfrost/midgard/midgard_compile.c index 7119108..db3b6bb 100644 --- a/src/panfrost/midgard/midgard_compile.c +++ b/src/panfrost/midgard/midgard_compile.c @@ -1161,10 +1161,6 @@ emit_alu(compiler_context *ctx, nir_alu_instr *instr) ins.mask = mask_of(nr_components); - midgard_vector_alu alu = { - .outmod = outmod, - }; - /* Apply writemask if non-SSA, keeping in mind that we can't write to * components that don't exist. Note modifier => SSA => !reg => no * writemask, so we don't have to worry about writemasks here.*/ @@ -1172,9 +1168,8 @@ emit_alu(compiler_context *ctx, nir_alu_instr *instr) if (!is_ssa) ins.mask &= instr->dest.write_mask; - ins.alu = alu; - ins.op = op; + ins.outmod = outmod; /* Late fixup for emulated instructions */ diff --git a/src/panfrost/midgard/midgard_emit.c b/src/panfrost/midgard/midgard_emit.c index 92a962d..99a26c8 100644 --- a/src/panfrost/midgard/midgard_emit.c +++ b/src/panfrost/midgard/midgard_emit.c @@ -492,6 +492,7 @@ vector_alu_from_instr(midgard_instruction *ins) { midgard_vector_alu alu = ins->alu; alu.op = ins->op; + alu.outmod = ins->outmod; alu.reg_mode = reg_mode_for_bitsize(max_bitsize_for_alu(ins)); return alu; } @@ -699,6 +700,7 @@ emit_binary_bundle(compiler_context *ctx, ins->texture.out_upper = override > 0; ins->texture.in_reg_full = (isz == 32); ins->texture.sampler_type = midgard_sampler_type(ins->dest_type); + ins->texture.outmod = ins->outmod; if (mir_op_computes_derivatives(ctx->stage, ins->texture.op)) { ins->texture.cont = !ins->helper_terminate; diff --git a/src/panfrost/midgard/mir.c b/src/panfrost/midgard/mir.c index 806dffd..40669ed 100644 --- a/src/panfrost/midgard/mir.c +++ b/src/panfrost/midgard/mir.c @@ -141,7 +141,7 @@ bool mir_nontrivial_outmod(midgard_instruction *ins) { bool is_int = midgard_is_integer_op(ins->op); - unsigned mod = ins->alu.outmod; + unsigned mod = ins->outmod; if (ins->dest_type != ins->src_types[1]) return true; -- 2.7.4