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radeonsi/gfx10: separate code for getting edgeflags from the gs_invocation_id VGPR

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Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
This commit is contained in:
Marek Olšák 2020-01-03 16:25:48 -05:00
parent cf65c6f0d2
commit 7a25521f92
1 changed files with 13 additions and 9 deletions
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22
src/gallium/drivers/radeonsi/gfx10_shader_ngg.c
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@ -71,6 +71,18 @@ static LLVMValueRef ngg_get_query_buf(struct si_shader_context *ctx)
LLVMConstInt(ctx->i32, GFX10_GS_QUERY_BUF, false));
}
static LLVMValueRef ngg_get_initial_edgeflag(struct si_shader_context *ctx, unsigned index)
{
if (ctx->type == PIPE_SHADER_VERTEX) {
LLVMValueRef tmp;
tmp = LLVMBuildLShr(ctx->ac.builder,
ac_get_arg(&ctx->ac, ctx->args.gs_invocation_id),
LLVMConstInt(ctx->ac.i32, 8 + index, false), "");
return LLVMBuildTrunc(ctx->ac.builder, tmp, ctx->ac.i1, "");
}
return ctx->i1false;
}
static void build_streamout_vertex(struct si_shader_context *ctx,
LLVMValueRef *so_buffer, LLVMValueRef *wg_offset_dw,
unsigned stream, LLVMValueRef offset_vtx,
@ -668,15 +680,7 @@ void gfx10_emit_ngg_epilogue(struct ac_shader_abi *abi,
memcpy(prim.index, vtxindex, sizeof(vtxindex[0]) * 3);
for (unsigned i = 0; i < num_vertices; ++i) {
if (ctx->type != PIPE_SHADER_VERTEX) {
prim.edgeflag[i] = ctx->i1false;
continue;
}
tmp = LLVMBuildLShr(builder,
ac_get_arg(&ctx->ac, ctx->args.gs_invocation_id),
LLVMConstInt(ctx->ac.i32, 8 + i, false), "");
prim.edgeflag[i] = LLVMBuildTrunc(builder, tmp, ctx->ac.i1, "");
prim.edgeflag[i] = ngg_get_initial_edgeflag(ctx, i);
if (sel->info.writes_edgeflag) {
tmp2 = LLVMBuildLoad(builder, user_edgeflags[i], "");