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i965/fs: Include everything but the final FB write in shader_time.

Browse source 
Previously, if you just wrote a constant color to the render target, no
time got noted at all.  This is convenient for doing single-instruction
timings, but not so much for actual program analysis.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
Eric Anholt 2013-03-19 15:14:20 -07:00
parent 5c5218ea61
commit 47e795d861
2 changed files with 15 additions and 5 deletions
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3
src/mesa/drivers/dri/i965/brw_fs.cpp
View file

@ -2784,9 +2784,6 @@ fs_visitor::run()
if (failed)
return false;
if (INTEL_DEBUG & DEBUG_SHADER_TIME)
emit_shader_time_end();
emit_fb_writes();
split_virtual_grfs();

17
src/mesa/drivers/dri/i965/brw_fs_visitor.cpp
View file

@ -2263,6 +2263,9 @@ fs_visitor::emit_fb_writes()
inst->saturate = c->key.clamp_fragment_color;
}
if (INTEL_DEBUG & DEBUG_SHADER_TIME)
emit_shader_time_end();
fs_inst *inst = emit(FS_OPCODE_FB_WRITE);
inst->target = 0;
inst->base_mrf = base_mrf;
@ -2297,6 +2300,14 @@ fs_visitor::emit_fb_writes()
for (unsigned i = 0; i < this->output_components[target]; i++)
emit_color_write(target, i, write_color_mrf);
bool eot = false;
if (target == c->key.nr_color_regions - 1) {
eot = true;
if (INTEL_DEBUG & DEBUG_SHADER_TIME)
emit_shader_time_end();
}
fs_inst *inst = emit(FS_OPCODE_FB_WRITE);
inst->target = target;
inst->base_mrf = base_mrf;
@ -2304,8 +2315,7 @@ fs_visitor::emit_fb_writes()
inst->mlen = nr - base_mrf - reg_width;
else
inst->mlen = nr - base_mrf;
if (target == c->key.nr_color_regions - 1)
inst->eot = true;
inst->eot = eot;
inst->header_present = header_present;
}
@ -2316,6 +2326,9 @@ fs_visitor::emit_fb_writes()
*/
emit_color_write(0, 3, color_mrf);
if (INTEL_DEBUG & DEBUG_SHADER_TIME)
emit_shader_time_end();
fs_inst *inst = emit(FS_OPCODE_FB_WRITE);
inst->base_mrf = base_mrf;
inst->mlen = nr - base_mrf;