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-rw-r--r--src/gallium/drivers/radeonsi/si_shader.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/src/gallium/drivers/radeonsi/si_shader.c b/src/gallium/drivers/radeonsi/si_shader.c
index 6e8b6746b9d..1bf5810322a 100644
--- a/src/gallium/drivers/radeonsi/si_shader.c
+++ b/src/gallium/drivers/radeonsi/si_shader.c
@@ -5213,6 +5213,23 @@ static void vote_eq_emit(
LLVMBuildSExt(gallivm->builder, tmp, ctx->i32, "");
}
+static void ballot_emit(
+ const struct lp_build_tgsi_action *action,
+ struct lp_build_tgsi_context *bld_base,
+ struct lp_build_emit_data *emit_data)
+{
+ struct si_shader_context *ctx = si_shader_context(bld_base);
+ LLVMBuilderRef builder = ctx->gallivm.builder;
+ LLVMValueRef tmp;
+
+ tmp = lp_build_emit_fetch(bld_base, emit_data->inst, 0, TGSI_CHAN_X);
+ tmp = si_emit_ballot(ctx, tmp);
+ tmp = LLVMBuildBitCast(builder, tmp, ctx->v2i32, "");
+
+ emit_data->output[0] = LLVMBuildExtractElement(builder, tmp, ctx->i32_0, "");
+ emit_data->output[1] = LLVMBuildExtractElement(builder, tmp, ctx->i32_1, "");
+}
+
static unsigned si_llvm_get_stream(struct lp_build_tgsi_context *bld_base,
struct lp_build_emit_data *emit_data)
{
@@ -6661,6 +6678,7 @@ static void si_init_shader_ctx(struct si_shader_context *ctx,
bld_base->op_actions[TGSI_OPCODE_VOTE_ALL].emit = vote_all_emit;
bld_base->op_actions[TGSI_OPCODE_VOTE_ANY].emit = vote_any_emit;
bld_base->op_actions[TGSI_OPCODE_VOTE_EQ].emit = vote_eq_emit;
+ bld_base->op_actions[TGSI_OPCODE_BALLOT].emit = ballot_emit;
bld_base->op_actions[TGSI_OPCODE_EMIT].emit = si_llvm_emit_vertex;
bld_base->op_actions[TGSI_OPCODE_ENDPRIM].emit = si_llvm_emit_primitive;