radv/gfx10: simplify some duplicated NGG GS code
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com> Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl> Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3382> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3382>
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@ -2371,6 +2371,30 @@ ngg_gs_emit_vertex_ptr(struct radv_shader_context *ctx, LLVMValueRef gsthread,
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return ngg_gs_vertex_ptr(ctx, vertexidx);
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}
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static LLVMValueRef
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ngg_gs_get_emit_output_ptr(struct radv_shader_context *ctx, LLVMValueRef vertexptr,
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unsigned out_idx)
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{
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LLVMValueRef gep_idx[3] = {
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ctx->ac.i32_0, /* implied C-style array */
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ctx->ac.i32_0, /* first struct entry */
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LLVMConstInt(ctx->ac.i32, out_idx, false),
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};
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return LLVMBuildGEP(ctx->ac.builder, vertexptr, gep_idx, 3, "");
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}
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static LLVMValueRef
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ngg_gs_get_emit_primflag_ptr(struct radv_shader_context *ctx, LLVMValueRef vertexptr,
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unsigned stream)
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{
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LLVMValueRef gep_idx[3] = {
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ctx->ac.i32_0, /* implied C-style array */
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ctx->ac.i32_1, /* second struct entry */
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LLVMConstInt(ctx->ac.i32, stream, false),
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};
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return LLVMBuildGEP(ctx->ac.builder, vertexptr, gep_idx, 3, "");
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}
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static struct radv_stream_output *
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radv_get_stream_output_by_loc(struct radv_streamout_info *so, unsigned location)
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{
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@ -3100,13 +3124,8 @@ static void gfx10_ngg_gs_emit_epilogue_1(struct radv_shader_context *ctx)
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LLVMBuildStore(builder, tmp, ctx->gs_next_vertex[stream]);
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tmp = ngg_gs_emit_vertex_ptr(ctx, gsthread, vertexidx);
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LLVMValueRef gep_idx[3] = {
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ctx->ac.i32_0, /* implied C-style array */
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ctx->ac.i32_1, /* second entry of struct */
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LLVMConstInt(ctx->ac.i32, stream, false),
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};
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tmp = LLVMBuildGEP(builder, tmp, gep_idx, 3, "");
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LLVMBuildStore(builder, i8_0, tmp);
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LLVMBuildStore(builder, i8_0,
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ngg_gs_get_emit_primflag_ptr(ctx, tmp, stream));
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ac_build_endloop(&ctx->ac, 5100);
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}
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@ -3158,13 +3177,8 @@ static void gfx10_ngg_gs_emit_epilogue_2(struct radv_shader_context *ctx)
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if (!ctx->args->shader_info->gs.num_stream_output_components[stream])
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continue;
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LLVMValueRef gep_idx[3] = {
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ctx->ac.i32_0, /* implicit C-style array */
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ctx->ac.i32_1, /* second value of struct */
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LLVMConstInt(ctx->ac.i32, stream, false),
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};
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tmp = LLVMBuildGEP(builder, vertexptr, gep_idx, 3, "");
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tmp = LLVMBuildLoad(builder, tmp, "");
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tmp = LLVMBuildLoad(builder,
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ngg_gs_get_emit_primflag_ptr(ctx, vertexptr, stream), "");
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tmp = LLVMBuildTrunc(builder, tmp, ctx->ac.i1, "");
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tmp2 = LLVMBuildICmp(builder, LLVMIntULT, tid, num_emit_threads, "");
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nggso.prim_enable[stream] = LLVMBuildAnd(builder, tmp, tmp2, "");
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@ -3200,13 +3214,8 @@ static void gfx10_ngg_gs_emit_epilogue_2(struct radv_shader_context *ctx)
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/* Load primitive liveness */
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tmp = ngg_gs_vertex_ptr(ctx, primidx);
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LLVMValueRef gep_idx[3] = {
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ctx->ac.i32_0, /* implicit C-style array */
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ctx->ac.i32_1, /* second value of struct */
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ctx->ac.i32_0, /* stream 0 */
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};
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tmp = LLVMBuildGEP(builder, tmp, gep_idx, 3, "");
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tmp = LLVMBuildLoad(builder, tmp, "");
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tmp = LLVMBuildLoad(builder,
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ngg_gs_get_emit_primflag_ptr(ctx, tmp, 0), "");
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const LLVMValueRef primlive =
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LLVMBuildTrunc(builder, tmp, ctx->ac.i1, "");
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@ -3261,14 +3270,9 @@ static void gfx10_ngg_gs_emit_epilogue_2(struct radv_shader_context *ctx)
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ac_build_ifcc(&ctx->ac, vertlive, 5130);
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{
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tmp = ngg_gs_vertex_ptr(ctx, vertlive_scan.result_exclusive);
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LLVMValueRef gep_idx[3] = {
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ctx->ac.i32_0, /* implicit C-style array */
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ctx->ac.i32_1, /* second value of struct */
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ctx->ac.i32_1, /* stream 1 */
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};
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tmp = LLVMBuildGEP(builder, tmp, gep_idx, 3, "");
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tmp2 = LLVMBuildTrunc(builder, tid, ctx->ac.i8, "");
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LLVMBuildStore(builder, tmp2, tmp);
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LLVMBuildStore(builder, tmp2,
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ngg_gs_get_emit_primflag_ptr(ctx, tmp, 1));
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}
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ac_build_endif(&ctx->ac, 5130);
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@ -3283,13 +3287,8 @@ static void gfx10_ngg_gs_emit_epilogue_2(struct radv_shader_context *ctx)
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prim.num_vertices = verts_per_prim;
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tmp = ngg_gs_vertex_ptr(ctx, tid);
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LLVMValueRef gep_idx[3] = {
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ctx->ac.i32_0, /* implicit C-style array */
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ctx->ac.i32_1, /* second value of struct */
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ctx->ac.i32_0, /* primflag */
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};
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tmp = LLVMBuildGEP(builder, tmp, gep_idx, 3, "");
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flags = LLVMBuildLoad(builder, tmp, "");
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flags = LLVMBuildLoad(builder,
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ngg_gs_get_emit_primflag_ptr(ctx, tmp, 0), "");
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prim.isnull = LLVMBuildNot(builder, LLVMBuildTrunc(builder, flags, ctx->ac.i1, ""), "");
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for (unsigned i = 0; i < verts_per_prim; ++i) {
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@ -3338,18 +3337,12 @@ static void gfx10_ngg_gs_emit_epilogue_2(struct radv_shader_context *ctx)
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outinfo->pos_exports = 0;
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tmp = ngg_gs_vertex_ptr(ctx, tid);
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LLVMValueRef gep_idx[3] = {
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ctx->ac.i32_0, /* implicit C-style array */
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ctx->ac.i32_1, /* second value of struct */
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ctx->ac.i32_1, /* stream 1: source data index */
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};
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tmp = LLVMBuildGEP(builder, tmp, gep_idx, 3, "");
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tmp = LLVMBuildLoad(builder, tmp, "");
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tmp = LLVMBuildLoad(builder,
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ngg_gs_get_emit_primflag_ptr(ctx, tmp, 1), "");
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tmp = LLVMBuildZExt(builder, tmp, ctx->ac.i32, "");
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const LLVMValueRef vertexptr = ngg_gs_vertex_ptr(ctx, tmp);
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unsigned out_idx = 0;
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gep_idx[1] = ctx->ac.i32_0;
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for (unsigned i = 0; i < AC_LLVM_MAX_OUTPUTS; ++i) {
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unsigned output_usage_mask =
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ctx->args->shader_info->gs.output_usage_mask[i];
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@ -3366,8 +3359,7 @@ static void gfx10_ngg_gs_emit_epilogue_2(struct radv_shader_context *ctx)
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if (!(output_usage_mask & (1 << j)))
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continue;
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gep_idx[2] = LLVMConstInt(ctx->ac.i32, out_idx, false);
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tmp = LLVMBuildGEP(builder, vertexptr, gep_idx, 3, "");
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tmp = ngg_gs_get_emit_output_ptr(ctx, vertexptr, out_idx);
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tmp = LLVMBuildLoad(builder, tmp, "");
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LLVMTypeRef type = LLVMGetAllocatedType(ctx->abi.outputs[ac_llvm_reg_index_soa(i, j)]);
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@ -3447,17 +3439,11 @@ static void gfx10_ngg_gs_emit_vertex(struct radv_shader_context *ctx,
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LLVMValueRef out_val = LLVMBuildLoad(ctx->ac.builder,
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out_ptr[j], "");
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LLVMValueRef gep_idx[3] = {
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ctx->ac.i32_0, /* implied C-style array */
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ctx->ac.i32_0, /* first entry of struct */
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LLVMConstInt(ctx->ac.i32, out_idx, false),
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};
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LLVMValueRef ptr = LLVMBuildGEP(builder, vertexptr, gep_idx, 3, "");
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out_val = ac_to_integer(&ctx->ac, out_val);
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out_val = LLVMBuildZExtOrBitCast(ctx->ac.builder, out_val, ctx->ac.i32, "");
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LLVMBuildStore(builder, out_val, ptr);
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LLVMBuildStore(builder, out_val,
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ngg_gs_get_emit_output_ptr(ctx, vertexptr, out_idx));
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}
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}
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assert(out_idx * 4 <= ctx->args->shader_info->gs.gsvs_vertex_size);
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@ -3483,14 +3469,6 @@ static void gfx10_ngg_gs_emit_vertex(struct radv_shader_context *ctx,
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tmp = LLVMBuildAdd(builder, curverts, ctx->ac.i32_1, "");
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LLVMBuildStore(builder, tmp, ctx->gs_curprim_verts[stream]);
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LLVMValueRef gep_idx[3] = {
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ctx->ac.i32_0, /* implied C-style array */
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ctx->ac.i32_1, /* second struct entry */
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LLVMConstInt(ctx->ac.i32, stream, false),
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};
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const LLVMValueRef primflagptr =
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LLVMBuildGEP(builder, vertexptr, gep_idx, 3, "");
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/* The per-vertex primitive flag encoding:
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* bit 0: whether this vertex finishes a primitive
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* bit 1: whether the primitive is odd (if we are emitting triangle strips)
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@ -3500,7 +3478,8 @@ static void gfx10_ngg_gs_emit_vertex(struct radv_shader_context *ctx,
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LLVMBuildShl(builder,
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LLVMBuildZExt(builder, is_odd, ctx->ac.i8, ""),
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ctx->ac.i8_1, ""), "");
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LLVMBuildStore(builder, tmp, primflagptr);
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LLVMBuildStore(builder, tmp,
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ngg_gs_get_emit_primflag_ptr(ctx, vertexptr, stream));
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tmp = LLVMBuildLoad(builder, ctx->gs_generated_prims[stream], "");
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tmp = LLVMBuildAdd(builder, tmp, LLVMBuildZExt(builder, iscompleteprim, ctx->ac.i32, ""), "");
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