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authorSamuel Pitoiset <[email protected]>2017-12-14 17:32:41 +0100
committerSamuel Pitoiset <[email protected]>2017-12-14 22:22:26 +0100
commit90c3bf07892c27c86c2474b14388e6b627454d76 (patch)
treec6120db7014f93241ec7d215db92a7b83eb10644 /src
parent2294d35b243dee15af15895e876a63b7d22e48cc (diff)
radv: do not load the local invocation index when it's unused
Signed-off-by: Samuel Pitoiset <[email protected]> Reviewed-by: Bas Nieuwenhuizen <[email protected]>
Diffstat (limited to 'src')
-rw-r--r--src/amd/common/ac_nir_to_llvm.c3
-rw-r--r--src/amd/common/ac_shader_info.c3
-rw-r--r--src/amd/common/ac_shader_info.h1
-rw-r--r--src/amd/vulkan/radv_shader.c2
4 files changed, 7 insertions, 2 deletions
diff --git a/src/amd/common/ac_nir_to_llvm.c b/src/amd/common/ac_nir_to_llvm.c
index 0e1d7e0082f..2fe346b012e 100644
--- a/src/amd/common/ac_nir_to_llvm.c
+++ b/src/amd/common/ac_nir_to_llvm.c
@@ -751,7 +751,8 @@ static void create_function(struct nir_to_llvm_context *ctx,
&ctx->num_work_groups);
}
add_sgpr_argument(&args, ctx->ac.v3i32, &ctx->workgroup_ids);
- add_sgpr_argument(&args, ctx->ac.i32, &ctx->tg_size);
+ if (ctx->shader_info->info.cs.uses_local_invocation_idx)
+ add_sgpr_argument(&args, ctx->ac.i32, &ctx->tg_size);
add_vgpr_argument(&args, ctx->ac.v3i32, &ctx->local_invocation_ids);
break;
case MESA_SHADER_VERTEX:
diff --git a/src/amd/common/ac_shader_info.c b/src/amd/common/ac_shader_info.c
index 87744ed23e1..3299b47e6b8 100644
--- a/src/amd/common/ac_shader_info.c
+++ b/src/amd/common/ac_shader_info.c
@@ -58,6 +58,9 @@ gather_intrinsic_info(nir_intrinsic_instr *instr, struct ac_shader_info *info)
}
break;
}
+ case nir_intrinsic_load_local_invocation_index:
+ info->cs.uses_local_invocation_idx = true;
+ break;
case nir_intrinsic_load_sample_id:
info->ps.force_persample = true;
break;
diff --git a/src/amd/common/ac_shader_info.h b/src/amd/common/ac_shader_info.h
index 0136d5af403..79e5615254b 100644
--- a/src/amd/common/ac_shader_info.h
+++ b/src/amd/common/ac_shader_info.h
@@ -45,6 +45,7 @@ struct ac_shader_info {
bool uses_grid_size;
bool uses_block_id[3];
bool uses_thread_id[3];
+ bool uses_local_invocation_idx;
} cs;
};
diff --git a/src/amd/vulkan/radv_shader.c b/src/amd/vulkan/radv_shader.c
index 907c1986f8a..ab8ba42511e 100644
--- a/src/amd/vulkan/radv_shader.c
+++ b/src/amd/vulkan/radv_shader.c
@@ -400,7 +400,7 @@ radv_fill_shader_variant(struct radv_device *device,
S_00B84C_TGID_Z_EN(info->cs.uses_block_id[2]) |
S_00B84C_TIDIG_COMP_CNT(info->cs.uses_thread_id[2] ? 2 :
info->cs.uses_thread_id[1] ? 1 : 0) |
- S_00B84C_TG_SIZE_EN(1) |
+ S_00B84C_TG_SIZE_EN(info->cs.uses_local_invocation_idx) |
S_00B84C_LDS_SIZE(variant->config.lds_size);
break;
}