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gallium/radeon: avoid redundant work with overlapping in/out arrays

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Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
This commit is contained in:
Nicolai Hähnle 2016-10-07 12:54:34 +02:00
parent 77c81164bc
commit 39a29c2431
1 changed files with 4 additions and 1 deletions
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5
src/gallium/drivers/radeon/radeon_setup_tgsi_llvm.c
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@ -680,7 +680,8 @@ static void emit_declaration(struct lp_build_tgsi_context *bld_base,
{
unsigned idx;
for (idx = decl->Range.First; idx <= decl->Range.Last; idx++) {
if (ctx->load_input) {
if (ctx->load_input &&
ctx->input_decls[idx].Declaration.File != TGSI_FILE_INPUT) {
ctx->input_decls[idx] = *decl;
if (bld_base->info->processor != PIPE_SHADER_FRAGMENT)
@ -706,6 +707,8 @@ static void emit_declaration(struct lp_build_tgsi_context *bld_base,
for (idx = decl->Range.First; idx <= decl->Range.Last; idx++) {
unsigned chan;
assert(idx < RADEON_LLVM_MAX_OUTPUTS);
if (ctx->soa.outputs[idx][0])
continue;
for (chan = 0; chan < TGSI_NUM_CHANNELS; chan++) {
ctx->soa.outputs[idx][chan] = lp_build_alloca_undef(
&ctx->gallivm,