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i965/nir: Use NIR for ARB_vertex_program support on Gen8+. 

Everything is already in place; we simply have to take the scalar code
generation path.  This gives us SIMD8 VS programs, instead of SIMD4x2.

v2: Rebase on the patch that drops brw->gen >= 8.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Connor Abbott <cwabbott0@gmail.com>
This commit is contained in:
Kenneth Graunke 2015-03-25 15:16:30 -07:00
parent ac69ab7302
commit 31dc63d5ca
1 changed files with 10 additions and 4 deletions
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14
src/mesa/drivers/dri/i965/brw_vec4.cpp
View File

@ -1823,7 +1823,7 @@ brw_vs_emit(struct brw_context *brw,
if (unlikely(INTEL_DEBUG & DEBUG_VS))
brw_dump_ir("vertex", prog, &shader->base, &c->vp->program.Base);
if (prog && brw->scalar_vs) {
if (brw->scalar_vs && (prog || brw_env_var_as_boolean("INTEL_USE_NIR", false))) {
fs_visitor v(brw, mem_ctx, &c->key, prog_data, prog, &c->vp->program, 8);
if (!v.run_vs()) {
if (prog) {
@ -1841,9 +1841,15 @@ brw_vs_emit(struct brw_context *brw,
&c->vp->program.Base, v.promoted_constants,
v.runtime_check_aads_emit, "VS");
if (INTEL_DEBUG & DEBUG_VS) {
char *name = ralloc_asprintf(mem_ctx, "%s vertex shader %d",
prog->Label ? prog->Label : "unnamed",
prog->Name);
char *name;
if (prog) {
name = ralloc_asprintf(mem_ctx, "%s vertex shader %d",
prog->Label ? prog->Label : "unnamed",
prog->Name);
} else {
name = ralloc_asprintf(mem_ctx, "vertex program %d",
c->vp->program.Base.Id);
}
g.enable_debug(name);
}
g.generate_code(v.cfg, 8);