ac: fix emit vertex stream parameter

Fixes the following piglit test on radeonsi:

./bin/arb_enhanced_layouts-gs-stream-location-aliasing

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

diff --git a/src/amd/common/ac_nir_to_llvm.c b/src/amd/common/ac_nir_to_llvm.c
index b90c313..53f5782 100644 (file)
--- a/src/amd/common/ac_nir_to_llvm.c
+++ b/src/amd/common/ac_nir_to_llvm.c
@@ -4162,6 +4162,8 @@ visit_emit_vertex(struct ac_shader_abi *abi, unsigned stream, LLVMValueRef *addr
        int idx;
        struct nir_to_llvm_context *ctx = nir_to_llvm_context_from_abi(abi);
 
+       assert(stream == 0);
+
        /* Write vertex attribute values to GSVS ring */
        gs_next_vertex = LLVMBuildLoad(ctx->builder,
                                       ctx->gs_next_vertex,
@@ -4468,8 +4470,7 @@ static void visit_intrinsic(struct ac_nir_context *ctx,
                result = visit_interp(ctx->nctx, instr);
                break;
        case nir_intrinsic_emit_vertex:
-               assert(instr->const_index[0] == 0);
-               ctx->abi->emit_vertex(ctx->abi, 0, ctx->outputs);
+               ctx->abi->emit_vertex(ctx->abi, nir_intrinsic_stream_id(instr), ctx->outputs);
                break;
        case nir_intrinsic_end_primitive:
                ctx->abi->emit_primitive(ctx->abi, nir_intrinsic_stream_id(instr));