From: Timothy Arceri <tarceri@itsqueeze.com>
Date: Sun, 14 Jan 2018 09:51:35 +0000 (+1100)
Subject: radeonsi/nir: add prim_mask to the abi
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=97058168a4bcf7d0dddbb13af02972a0edbcefd4;p=mesa.git

radeonsi/nir: add prim_mask to the abi

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
---

diff --git a/src/amd/common/ac_nir_to_llvm.c b/src/amd/common/ac_nir_to_llvm.c
index bcacd4953f4..e4963dc3593 100644
--- a/src/amd/common/ac_nir_to_llvm.c
+++ b/src/amd/common/ac_nir_to_llvm.c
@@ -123,7 +123,6 @@ struct nir_to_llvm_context {
 	LLVMValueRef hs_ring_tess_offchip;
 	LLVMValueRef hs_ring_tess_factor;
 
-	LLVMValueRef prim_mask;
 	LLVMValueRef sample_pos_offset;
 	LLVMValueRef persp_sample, persp_center, persp_centroid;
 	LLVMValueRef linear_sample, linear_center, linear_centroid;
@@ -1005,7 +1004,7 @@ static void create_function(struct nir_to_llvm_context *ctx,
 			add_arg(&args, ARG_SGPR, ctx->ac.i32,
 				&ctx->sample_pos_offset);
 
-		add_arg(&args, ARG_SGPR, ctx->ac.i32, &ctx->prim_mask);
+		add_arg(&args, ARG_SGPR, ctx->ac.i32, &ctx->abi.prim_mask);
 		add_arg(&args, ARG_VGPR, ctx->ac.v2i32, &ctx->persp_sample);
 		add_arg(&args, ARG_VGPR, ctx->ac.v2i32, &ctx->persp_center);
 		add_arg(&args, ARG_VGPR, ctx->ac.v2i32, &ctx->persp_centroid);
@@ -4146,12 +4145,12 @@ static LLVMValueRef visit_interp(struct nir_to_llvm_context *ctx,
 
 			result[chan] = ac_build_fs_interp(&ctx->ac,
 							  llvm_chan, attr_number,
-							  ctx->prim_mask, i, j);
+							  ctx->abi.prim_mask, i, j);
 		} else {
 			result[chan] = ac_build_fs_interp_mov(&ctx->ac,
 							      LLVMConstInt(ctx->ac.i32, 2, false),
 							      llvm_chan, attr_number,
-							      ctx->prim_mask);
+							      ctx->abi.prim_mask);
 		}
 	}
 	return ac_build_varying_gather_values(&ctx->ac, result, instr->num_components,
@@ -5464,7 +5463,7 @@ prepare_interp_optimize(struct nir_to_llvm_context *ctx,
 	}
 
 	if (uses_center && uses_centroid) {
-		LLVMValueRef sel = LLVMBuildICmp(ctx->builder, LLVMIntSLT, ctx->prim_mask, ctx->ac.i32_0, "");
+		LLVMValueRef sel = LLVMBuildICmp(ctx->builder, LLVMIntSLT, ctx->abi.prim_mask, ctx->ac.i32_0, "");
 		ctx->persp_centroid = LLVMBuildSelect(ctx->builder, sel, ctx->persp_center, ctx->persp_centroid, "");
 		ctx->linear_centroid = LLVMBuildSelect(ctx->builder, sel, ctx->linear_center, ctx->linear_centroid, "");
 	}
@@ -5495,7 +5494,7 @@ handle_fs_inputs(struct nir_to_llvm_context *ctx,
 		if (i >= VARYING_SLOT_VAR0 || i == VARYING_SLOT_PNTC ||
 		    i == VARYING_SLOT_PRIMITIVE_ID || i == VARYING_SLOT_LAYER) {
 			interp_param = *inputs;
-			interp_fs_input(ctx, index, interp_param, ctx->prim_mask,
+			interp_fs_input(ctx, index, interp_param, ctx->abi.prim_mask,
 					inputs);
 
 			if (!interp_param)
diff --git a/src/amd/common/ac_shader_abi.h b/src/amd/common/ac_shader_abi.h
index 409b49a6cd7..9cdfd9d1dfc 100644
--- a/src/amd/common/ac_shader_abi.h
+++ b/src/amd/common/ac_shader_abi.h
@@ -53,6 +53,7 @@ struct ac_shader_abi {
 	LLVMValueRef front_face;
 	LLVMValueRef ancillary;
 	LLVMValueRef sample_coverage;
+	LLVMValueRef prim_mask;
 
 	/* For VS and PS: pre-loaded shader inputs.
 	 *
diff --git a/src/gallium/drivers/radeonsi/si_shader.c b/src/gallium/drivers/radeonsi/si_shader.c
index 71a8733780c..dfec070d33e 100644
--- a/src/gallium/drivers/radeonsi/si_shader.c
+++ b/src/gallium/drivers/radeonsi/si_shader.c
@@ -1848,7 +1848,7 @@ void si_llvm_load_input_fs(
 	interp_fs_input(ctx, input_index, semantic_name,
 			semantic_index, 0, /* this param is unused */
 			shader->selector->info.colors_read, interp_param,
-			LLVMGetParam(main_fn, SI_PARAM_PRIM_MASK),
+			ctx->abi.prim_mask,
 			LLVMGetParam(main_fn, SI_PARAM_FRONT_FACE),
 			&out[0]);
 }
@@ -4076,7 +4076,7 @@ static void build_interp_intrinsic(const struct lp_build_tgsi_action *action,
 	int input_base, input_array_size;
 	int chan;
 	int i;
-	LLVMValueRef prim_mask = LLVMGetParam(ctx->main_fn, SI_PARAM_PRIM_MASK);
+	LLVMValueRef prim_mask = ctx->abi.prim_mask;
 	LLVMValueRef array_idx;
 	int interp_param_idx;
 	unsigned interp;
@@ -4879,7 +4879,8 @@ static void create_function(struct si_shader_context *ctx)
 		declare_global_desc_pointers(ctx, &fninfo);
 		declare_per_stage_desc_pointers(ctx, &fninfo, true);
 		add_arg_checked(&fninfo, ARG_SGPR, ctx->f32, SI_PARAM_ALPHA_REF);
-		add_arg_checked(&fninfo, ARG_SGPR, ctx->i32, SI_PARAM_PRIM_MASK);
+		add_arg_assign_checked(&fninfo, ARG_SGPR, ctx->i32,
+				       &ctx->abi.prim_mask, SI_PARAM_PRIM_MASK);
 
 		add_arg_checked(&fninfo, ARG_VGPR, ctx->v2i32, SI_PARAM_PERSP_SAMPLE);
 		add_arg_checked(&fninfo, ARG_VGPR, ctx->v2i32, SI_PARAM_PERSP_CENTER);