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ac/radv: don't mark tess inner as used if we don't use it. 

This just avoids marking it as a used output if we don't
actually use it.

Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie 2018-02-19 20:33:17 +00:00
parent d5b2d7ed67
commit e9b9fb3616
1 changed files with 12 additions and 9 deletions
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21
src/amd/common/ac_nir_to_llvm.c
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@ -6360,8 +6360,8 @@ write_tess_factors(struct radv_shader_context *ctx)
struct ac_build_if_state if_ctx, inner_if_ctx;
LLVMValueRef invocation_id = unpack_param(&ctx->ac, ctx->abi.tcs_rel_ids, 8, 5);
LLVMValueRef rel_patch_id = unpack_param(&ctx->ac, ctx->abi.tcs_rel_ids, 0, 8);
unsigned tess_inner_index, tess_outer_index;
LLVMValueRef lds_base, lds_inner, lds_outer, byteoffset, buffer;
unsigned tess_inner_index = 0, tess_outer_index;
LLVMValueRef lds_base, lds_inner = NULL, lds_outer, byteoffset, buffer;
LLVMValueRef out[6], vec0, vec1, tf_base, inner[4], outer[4];
int i;
emit_barrier(&ctx->ac, ctx->stage);
@ -6390,14 +6390,17 @@ write_tess_factors(struct radv_shader_context *ctx)
LLVMBuildICmp(ctx->ac.builder, LLVMIntEQ,
invocation_id, ctx->ac.i32_0, ""));
tess_inner_index = shader_io_get_unique_index(VARYING_SLOT_TESS_LEVEL_INNER);
tess_outer_index = shader_io_get_unique_index(VARYING_SLOT_TESS_LEVEL_OUTER);
mark_tess_output(ctx, true, tess_inner_index);
mark_tess_output(ctx, true, tess_outer_index);
lds_base = get_tcs_out_current_patch_data_offset(ctx);
lds_inner = LLVMBuildAdd(ctx->ac.builder, lds_base,
LLVMConstInt(ctx->ac.i32, tess_inner_index * 4, false), "");
if (inner_comps) {
tess_inner_index = shader_io_get_unique_index(VARYING_SLOT_TESS_LEVEL_INNER);
mark_tess_output(ctx, true, tess_inner_index);
lds_inner = LLVMBuildAdd(ctx->ac.builder, lds_base,
LLVMConstInt(ctx->ac.i32, tess_inner_index * 4, false), "");
}
tess_outer_index = shader_io_get_unique_index(VARYING_SLOT_TESS_LEVEL_OUTER);
mark_tess_output(ctx, true, tess_outer_index);
lds_outer = LLVMBuildAdd(ctx->ac.builder, lds_base,
LLVMConstInt(ctx->ac.i32, tess_outer_index * 4, false), "");