[Mesa-dev] [PATCH 04/11] radeonsi: use si_get_indirect_index for CONST indexing

Marek Olšák maraeo at gmail.com
Fri Sep 29 12:25:27 UTC 2017


From: Marek Olšák <marek.olsak at amd.com>

---
 src/gallium/drivers/radeonsi/si_shader.c          | 24 +++++++++++------------
 src/gallium/drivers/radeonsi/si_shader_internal.h |  2 +-
 src/gallium/drivers/radeonsi/si_shader_tgsi_mem.c |  2 +-
 3 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/src/gallium/drivers/radeonsi/si_shader.c b/src/gallium/drivers/radeonsi/si_shader.c
index d012c19..213628f 100644
--- a/src/gallium/drivers/radeonsi/si_shader.c
+++ b/src/gallium/drivers/radeonsi/si_shader.c
@@ -713,41 +713,46 @@ static LLVMValueRef get_primitive_id(struct si_shader_context *ctx,
 		return ctx->i32_0;
 	}
 }
 
 /**
  * Return the value of tgsi_ind_register for indexing.
  * This is the indirect index with the constant offset added to it.
  */
 LLVMValueRef si_get_indirect_index(struct si_shader_context *ctx,
 				   const struct tgsi_ind_register *ind,
+				   unsigned addr_mul,
 				   int rel_index)
 {
 	struct gallivm_state *gallivm = &ctx->gallivm;
 	LLVMValueRef result;
 
 	result = ctx->addrs[ind->Index][ind->Swizzle];
 	result = LLVMBuildLoad(gallivm->builder, result, "");
+
+	if (addr_mul != 1)
+		result = LLVMBuildMul(gallivm->builder, result,
+				      LLVMConstInt(ctx->i32, addr_mul, 0), "");
 	result = LLVMBuildAdd(gallivm->builder, result,
 			      LLVMConstInt(ctx->i32, rel_index, 0), "");
 	return result;
 }
 
 /**
  * Like si_get_indirect_index, but restricts the return value to a (possibly
  * undefined) value inside [0..num).
  */
 LLVMValueRef si_get_bounded_indirect_index(struct si_shader_context *ctx,
 					   const struct tgsi_ind_register *ind,
 					   int rel_index, unsigned num)
 {
-	LLVMValueRef result = si_get_indirect_index(ctx, ind, rel_index);
+	LLVMValueRef result = si_get_indirect_index(ctx, ind, 1, rel_index);
 
 	return si_llvm_bound_index(ctx, result, num);
 }
 
 
 /**
  * Calculate a dword address given an input or output register and a stride.
  */
 static LLVMValueRef get_dw_address(struct si_shader_context *ctx,
 				   const struct tgsi_full_dst_register *dst,
@@ -774,21 +779,21 @@ static LLVMValueRef get_dw_address(struct si_shader_context *ctx,
 	} else
 		reg = *dst;
 
 	/* If the register is 2-dimensional (e.g. an array of vertices
 	 * in a primitive), calculate the base address of the vertex. */
 	if (reg.Register.Dimension) {
 		LLVMValueRef index;
 
 		if (reg.Dimension.Indirect)
 			index = si_get_indirect_index(ctx, &reg.DimIndirect,
-						   reg.Dimension.Index);
+						      1, reg.Dimension.Index);
 		else
 			index = LLVMConstInt(ctx->i32, reg.Dimension.Index, 0);
 
 		base_addr = LLVMBuildAdd(gallivm->builder, base_addr,
 					 LLVMBuildMul(gallivm->builder, index,
 						      vertex_dw_stride, ""), "");
 	}
 
 	/* Get information about the register. */
 	if (reg.Register.File == TGSI_FILE_INPUT) {
@@ -807,21 +812,21 @@ static LLVMValueRef get_dw_address(struct si_shader_context *ctx,
 	if (reg.Register.Indirect) {
 		/* Add the relative address of the element. */
 		LLVMValueRef ind_index;
 
 		if (reg.Indirect.ArrayID)
 			first = array_first[reg.Indirect.ArrayID];
 		else
 			first = reg.Register.Index;
 
 		ind_index = si_get_indirect_index(ctx, &reg.Indirect,
-					   reg.Register.Index - first);
+						  1, reg.Register.Index - first);
 
 		base_addr = LLVMBuildAdd(gallivm->builder, base_addr,
 				    LLVMBuildMul(gallivm->builder, ind_index,
 						 LLVMConstInt(ctx->i32, 4, 0), ""), "");
 
 		param = reg.Register.Dimension ?
 			si_shader_io_get_unique_index(name[first], index[first]) :
 			si_shader_io_get_unique_index_patch(name[first], index[first]);
 	} else {
 		param = reg.Register.Dimension ?
@@ -910,21 +915,21 @@ static LLVMValueRef get_tcs_tes_buffer_address_from_reg(
 	LLVMValueRef vertex_index = NULL;
 	LLVMValueRef param_index = NULL;
 	unsigned param_index_base, param_base;
 
 	reg = src ? *src : tgsi_full_src_register_from_dst(dst);
 
 	if (reg.Register.Dimension) {
 
 		if (reg.Dimension.Indirect)
 			vertex_index = si_get_indirect_index(ctx, &reg.DimIndirect,
-			                                  reg.Dimension.Index);
+							     1, reg.Dimension.Index);
 		else
 			vertex_index = LLVMConstInt(ctx->i32, reg.Dimension.Index, 0);
 	}
 
 	/* Get information about the register. */
 	if (reg.Register.File == TGSI_FILE_INPUT) {
 		name = info->input_semantic_name;
 		index = info->input_semantic_index;
 		array_first = info->input_array_first;
 	} else if (reg.Register.File == TGSI_FILE_OUTPUT) {
@@ -936,21 +941,21 @@ static LLVMValueRef get_tcs_tes_buffer_address_from_reg(
 		return NULL;
 	}
 
 	if (reg.Register.Indirect) {
 		if (reg.Indirect.ArrayID)
 			param_base = array_first[reg.Indirect.ArrayID];
 		else
 			param_base = reg.Register.Index;
 
 		param_index = si_get_indirect_index(ctx, &reg.Indirect,
-		                                 reg.Register.Index - param_base);
+						    1, reg.Register.Index - param_base);
 
 	} else {
 		param_base = reg.Register.Index;
 		param_index = ctx->i32_0;
 	}
 
 	param_index_base = reg.Register.Dimension ?
 		si_shader_io_get_unique_index(name[param_base], index[param_base]) :
 		si_shader_io_get_unique_index_patch(name[param_base], index[param_base]);
 
@@ -1904,21 +1909,20 @@ load_ssbo(struct ac_shader_abi *abi, LLVMValueRef index, bool write)
 	return ac_build_indexed_load_const(&ctx->ac, rsrc_ptr, index);
 }
 
 static LLVMValueRef fetch_constant(
 	struct lp_build_tgsi_context *bld_base,
 	const struct tgsi_full_src_register *reg,
 	enum tgsi_opcode_type type,
 	unsigned swizzle)
 {
 	struct si_shader_context *ctx = si_shader_context(bld_base);
-	struct lp_build_context *base = &bld_base->base;
 	const struct tgsi_ind_register *ireg = &reg->Indirect;
 	unsigned buf, idx;
 
 	LLVMValueRef addr, bufp;
 	LLVMValueRef result;
 
 	if (swizzle == LP_CHAN_ALL) {
 		unsigned chan;
 		LLVMValueRef values[4];
 		for (chan = 0; chan < TGSI_NUM_CHANNELS; ++chan)
@@ -1937,25 +1941,21 @@ static LLVMValueRef fetch_constant(
 		index = si_get_bounded_indirect_index(ctx, &reg->DimIndirect,
 						      reg->Dimension.Index,
 						      ctx->num_const_buffers);
 		index = LLVMBuildAdd(ctx->gallivm.builder, index,
 				     LLVMConstInt(ctx->i32, SI_NUM_SHADER_BUFFERS, 0), "");
 		bufp = ac_build_indexed_load_const(&ctx->ac, ptr, index);
 	} else
 		bufp = load_const_buffer_desc(ctx, buf);
 
 	if (reg->Register.Indirect) {
-		addr = ctx->addrs[ireg->Index][ireg->Swizzle];
-		addr = LLVMBuildLoad(base->gallivm->builder, addr, "load addr reg");
-		addr = lp_build_mul_imm(&bld_base->uint_bld, addr, 16);
-		addr = lp_build_add(&bld_base->uint_bld, addr,
-				    LLVMConstInt(ctx->i32, idx * 4, 0));
+		addr = si_get_indirect_index(ctx, ireg, 16, idx * 4);
 	} else {
 		addr = LLVMConstInt(ctx->i32, idx * 4, 0);
 	}
 
 	result = buffer_load_const(ctx, bufp, addr);
 
 	if (!tgsi_type_is_64bit(type))
 		result = bitcast(bld_base, type, result);
 	else {
 		LLVMValueRef addr2, result2;
@@ -3780,21 +3780,21 @@ static void build_interp_intrinsic(const struct lp_build_tgsi_action *action,
 
 		if (array_id) {
 			input_base = info->input_array_first[array_id];
 			input_array_size = info->input_array_last[array_id] - input_base + 1;
 		} else {
 			input_base = inst->Src[0].Register.Index;
 			input_array_size = info->num_inputs - input_base;
 		}
 
 		array_idx = si_get_indirect_index(ctx, &input->Indirect,
-					       input->Register.Index - input_base);
+						  1, input->Register.Index - input_base);
 	} else {
 		input_base = inst->Src[0].Register.Index;
 		input_array_size = 1;
 		array_idx = ctx->i32_0;
 	}
 
 	interp = shader->selector->info.input_interpolate[input_base];
 
 	if (inst->Instruction.Opcode == TGSI_OPCODE_INTERP_OFFSET ||
 	    inst->Instruction.Opcode == TGSI_OPCODE_INTERP_SAMPLE)
diff --git a/src/gallium/drivers/radeonsi/si_shader_internal.h b/src/gallium/drivers/radeonsi/si_shader_internal.h
index 141dd34..932e457 100644
--- a/src/gallium/drivers/radeonsi/si_shader_internal.h
+++ b/src/gallium/drivers/radeonsi/si_shader_internal.h
@@ -294,21 +294,21 @@ void si_llvm_emit_store(struct lp_build_tgsi_context *bld_base,
 
 /* Combine these with & instead of |. */
 #define NOOP_WAITCNT 0xf7f
 #define LGKM_CNT 0x07f
 #define VM_CNT 0xf70
 
 void si_emit_waitcnt(struct si_shader_context *ctx, unsigned simm16);
 
 LLVMValueRef si_get_indirect_index(struct si_shader_context *ctx,
 				   const struct tgsi_ind_register *ind,
-				   int rel_index);
+				   unsigned addr_mul, int rel_index);
 LLVMValueRef si_get_bounded_indirect_index(struct si_shader_context *ctx,
 					   const struct tgsi_ind_register *ind,
 					   int rel_index, unsigned num);
 
 LLVMTypeRef si_const_array(LLVMTypeRef elem_type, int num_elements);
 
 void si_shader_context_init_alu(struct lp_build_tgsi_context *bld_base);
 void si_shader_context_init_mem(struct si_shader_context *ctx);
 
 LLVMValueRef si_load_sampler_desc(struct si_shader_context *ctx,
diff --git a/src/gallium/drivers/radeonsi/si_shader_tgsi_mem.c b/src/gallium/drivers/radeonsi/si_shader_tgsi_mem.c
index be92044..ba13d3b 100644
--- a/src/gallium/drivers/radeonsi/si_shader_tgsi_mem.c
+++ b/src/gallium/drivers/radeonsi/si_shader_tgsi_mem.c
@@ -75,21 +75,21 @@ static LLVMValueRef
 shader_buffer_fetch_rsrc(struct si_shader_context *ctx,
 			 const struct tgsi_full_src_register *reg,
 			 bool ubo)
 {
 	LLVMValueRef index;
 
 	if (!reg->Register.Indirect) {
 		index = LLVMConstInt(ctx->i32, reg->Register.Index, false);
 	} else {
 		index = si_get_indirect_index(ctx, &reg->Indirect,
-					      reg->Register.Index);
+					      1, reg->Register.Index);
 	}
 
 	if (ubo)
 		return ctx->abi.load_ubo(&ctx->abi, index);
 	else
 		return ctx->abi.load_ssbo(&ctx->abi, index, false);
 }
 
 static bool tgsi_is_array_sampler(unsigned target)
 {
-- 
2.7.4



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