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gallium/radeon: extract common lookup code into get_temp_array function

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Reviewed-by: Marek Olšák <marek.olsak@amd.com>
This commit is contained in:
Nicolai Hähnle 2016-08-08 22:43:09 +02:00
parent fa84296a5a
commit b76aabffa2
1 changed files with 40 additions and 33 deletions
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73
src/gallium/drivers/radeon/radeon_setup_tgsi_llvm.c
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@ -111,58 +111,65 @@ static LLVMValueRef emit_swizzle(struct lp_build_tgsi_context *bld_base,
LLVMConstVector(swizzles, 4), "");
}
/**
* Return the description of the array covering the given temporary register
* index.
*/
static const struct radeon_llvm_array *
get_temp_array(struct lp_build_tgsi_context *bld_base,
unsigned reg_index,
const struct tgsi_ind_register *reg)
{
struct radeon_llvm_context *ctx = radeon_llvm_context(bld_base);
unsigned num_arrays = ctx->soa.bld_base.info->array_max[TGSI_FILE_TEMPORARY];
unsigned i;
if (reg && reg->ArrayID > 0 && reg->ArrayID <= num_arrays)
return &ctx->arrays[reg->ArrayID - 1];
for (i = 0; i < num_arrays; i++) {
const struct radeon_llvm_array *array = &ctx->arrays[i];
if (reg_index >= array->range.First && reg_index <= array->range.Last)
return array;
}
return NULL;
}
static struct tgsi_declaration_range
get_array_range(struct lp_build_tgsi_context *bld_base,
unsigned File, unsigned reg_index,
const struct tgsi_ind_register *reg)
{
struct radeon_llvm_context *ctx = radeon_llvm_context(bld_base);
struct tgsi_declaration_range range;
if (!reg) {
unsigned i;
unsigned num_arrays = bld_base->info->array_max[TGSI_FILE_TEMPORARY];
for (i = 0; i < num_arrays; i++) {
const struct tgsi_declaration_range *range =
&ctx->arrays[i].range;
if (reg_index >= range->First && reg_index <= range->Last) {
return ctx->arrays[i].range;
}
}
if (File == TGSI_FILE_TEMPORARY) {
const struct radeon_llvm_array *array =
get_temp_array(bld_base, reg_index, reg);
if (array)
return array->range;
}
if (File != TGSI_FILE_TEMPORARY || !reg || reg->ArrayID == 0 ||
reg->ArrayID > bld_base->info->array_max[TGSI_FILE_TEMPORARY]) {
struct tgsi_declaration_range range;
range.First = 0;
range.Last = bld_base->info->file_max[File];
return range;
}
return ctx->arrays[reg->ArrayID - 1].range;
range.First = 0;
range.Last = bld_base->info->file_max[File];
return range;
}
static LLVMValueRef get_alloca_for_array(struct lp_build_tgsi_context *bld_base,
unsigned file,
unsigned index)
{
unsigned i;
unsigned num_arrays;
struct radeon_llvm_context *ctx = radeon_llvm_context(bld_base);
const struct radeon_llvm_array *array;
if (file != TGSI_FILE_TEMPORARY)
return NULL;
num_arrays = bld_base->info->array_max[TGSI_FILE_TEMPORARY];
for (i = 0; i < num_arrays; i++) {
const struct tgsi_declaration_range *range =
&ctx->arrays[i].range;
array = get_temp_array(bld_base, index, NULL);
if (!array)
return NULL;
if (index >= range->First && index <= range->Last) {
return ctx->arrays[i].alloca;
}
}
return NULL;
return array->alloca;
}
static LLVMValueRef