From: Dave Airlie <[email protected]>

This seems to get lost in the rebases, should fix
the tessellation demos, crash in llvm.

Signed-off-by: Dave Airlie <[email protected]>
---
 src/amd/common/ac_nir_to_llvm.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/amd/common/ac_nir_to_llvm.c b/src/amd/common/ac_nir_to_llvm.c
index dfb4672..048601f 100644
--- a/src/amd/common/ac_nir_to_llvm.c
+++ b/src/amd/common/ac_nir_to_llvm.c
@@ -548,6 +548,14 @@ static void set_userdata_location_indirect(struct 
ac_userdata_info *ud_info, uin
 }
 #endif
 
+static void declare_tess_lds(struct nir_to_llvm_context *ctx)
+{
+       unsigned lds_size = ctx->options->chip_class >= CIK ? 65536 : 32768;
+       ctx->lds = LLVMBuildIntToPtr(ctx->builder, ctx->i32zero,
+                                    LLVMPointerType(LLVMArrayType(ctx->i32, 
lds_size / 4), LOCAL_ADDR_SPACE),
+               "tess_lds");
+}
+
 static void create_function(struct nir_to_llvm_context *ctx)
 {
        LLVMTypeRef arg_types[23];
@@ -785,6 +793,8 @@ static void create_function(struct nir_to_llvm_context *ctx)
                        ctx->vs_prim_id = LLVMGetParam(ctx->main_function, 
arg_idx++);
                        ctx->instance_id = LLVMGetParam(ctx->main_function, 
arg_idx++);
                }
+               if (ctx->options->key.vs.as_ls)
+                       declare_tess_lds(ctx);
                break;
        case MESA_SHADER_TESS_CTRL:
                set_userdata_location_shader(ctx, AC_UD_TCS_OFFCHIP_LAYOUT, 
user_sgpr_idx, 4);
@@ -797,6 +807,8 @@ static void create_function(struct nir_to_llvm_context *ctx)
                ctx->tess_factor_offset = LLVMGetParam(ctx->main_function, 
arg_idx++);
                ctx->tcs_patch_id = LLVMGetParam(ctx->main_function, arg_idx++);
                ctx->tcs_rel_ids = LLVMGetParam(ctx->main_function, arg_idx++);
+
+               declare_tess_lds(ctx);
                break;
        case MESA_SHADER_TESS_EVAL:
                set_userdata_location_shader(ctx, AC_UD_TES_OFFCHIP_LAYOUT, 
user_sgpr_idx, 1);
-- 
2.9.3

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