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radeon/llvm: Add helpers for loading and storing data from arrays.

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Reviewed-by: Marek Olšák <marek.olsak@amd.com>
This commit is contained in:
Tom Stellard 2016-05-17 14:48:42 +00:00
parent 2dc48984b2
commit 02873a7b0c
1 changed files with 41 additions and 10 deletions
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51
src/gallium/drivers/radeon/radeon_setup_tgsi_llvm.c
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@ -160,6 +160,43 @@ emit_array_fetch(
return result;
}
static LLVMValueRef
load_value_from_array(
struct lp_build_tgsi_context *bld_base,
unsigned file,
enum tgsi_opcode_type type,
unsigned swizzle,
unsigned reg_index,
const struct tgsi_ind_register *reg_indirect)
{
struct lp_build_tgsi_soa_context *bld = lp_soa_context(bld_base);
LLVMBuilderRef builder = bld_base->base.gallivm->builder;
struct tgsi_declaration_range range = get_array_range(bld_base, file, reg_indirect);
return LLVMBuildExtractElement(builder,
emit_array_fetch(bld_base, file, type, range, swizzle),
emit_array_index(bld, reg_indirect, reg_index - range.First), "");
}
static LLVMValueRef store_value_to_array(
struct lp_build_tgsi_context *bld_base,
LLVMValueRef value,
unsigned file,
unsigned chan_index,
unsigned reg_index,
const struct tgsi_ind_register *reg_indirect)
{
struct lp_build_tgsi_soa_context *bld = lp_soa_context(bld_base);
LLVMBuilderRef builder = bld_base->base.gallivm->builder;
struct tgsi_declaration_range range = get_array_range(bld_base, file, reg_indirect);
return LLVMBuildInsertElement(builder,
emit_array_fetch(bld_base, file, TGSI_TYPE_FLOAT, range, chan_index),
value, emit_array_index(bld, reg_indirect, reg_index - range.First), "");
return NULL;
}
LLVMValueRef radeon_llvm_emit_fetch(struct lp_build_tgsi_context *bld_base,
const struct tgsi_full_src_register *reg,
enum tgsi_opcode_type type,
@ -181,12 +218,8 @@ LLVMValueRef radeon_llvm_emit_fetch(struct lp_build_tgsi_context *bld_base,
}
if (reg->Register.Indirect) {
struct tgsi_declaration_range range = get_array_range(bld_base,
reg->Register.File, &reg->Indirect);
return LLVMBuildExtractElement(builder,
emit_array_fetch(bld_base, reg->Register.File, type, range, swizzle),
emit_array_index(bld, &reg->Indirect, reg->Register.Index - range.First),
"");
return load_value_from_array(bld_base, reg->Register.File, type,
swizzle, reg->Register.Index, &reg->Indirect);
}
switch(reg->Register.File) {
@ -430,10 +463,8 @@ void radeon_llvm_emit_store(
reg->Register.File, &reg->Indirect);
unsigned i, size = range.Last - range.First + 1;
LLVMValueRef array = LLVMBuildInsertElement(builder,
emit_array_fetch(bld_base, reg->Register.File, TGSI_TYPE_FLOAT, range, chan_index),
value, emit_array_index(bld, &reg->Indirect, reg->Register.Index - range.First), "");
LLVMValueRef array = store_value_to_array(bld_base, value, reg->Register.File, chan_index,
reg->Register.Index, &reg->Indirect);
for (i = 0; i < size; ++i) {
switch(reg->Register.File) {
case TGSI_FILE_OUTPUT: