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i965/nir: Report NIR instruction counts (in SSA form) via KHR_debug.

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This allows us to count NIR instructions via shader-db.

Use "run" as normal.  The results file will contain both NIR and
assembly.

Then, to generate a NIR report:
./report.py <(grep    NIR results/foo) <(grep    NIR results/bar)

Or, to generate an i965 report:
./report.py <(grep -v NIR results/foo) <(grep -v NIR results/bar)

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
This commit is contained in:
Kenneth Graunke 2015-01-21 01:51:21 -08:00
parent f3e06fcc6a
commit d7743bb1c2
1 changed files with 32 additions and 0 deletions
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32
src/mesa/drivers/dri/i965/brw_fs_nir.cpp
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@ -49,6 +49,28 @@ nir_optimize(nir_shader *nir)
} while (progress);
}
static bool
count_nir_instrs_in_block(nir_block *block, void *state)
{
int *count = (int *) state;
nir_foreach_instr(block, instr) {
*count = *count + 1;
}
return true;
}
static int
count_nir_instrs(nir_shader *nir)
{
int count = 0;
nir_foreach_overload(nir, overload) {
if (!overload->impl)
continue;
nir_foreach_block(overload->impl, count_nir_instrs_in_block, &count);
}
return count;
}
void
fs_visitor::emit_nir_code()
{
@ -99,6 +121,16 @@ fs_visitor::emit_nir_code()
nir_print_shader(nir, stderr);
}
if (dispatch_width == 8) {
static GLuint msg_id = 0;
_mesa_gl_debug(&brw->ctx, &msg_id,
MESA_DEBUG_SOURCE_SHADER_COMPILER,
MESA_DEBUG_TYPE_OTHER,
MESA_DEBUG_SEVERITY_NOTIFICATION,
"FS NIR shader: %d inst\n",
count_nir_instrs(nir));
}
nir_convert_from_ssa(nir);
nir_validate_shader(nir);
nir_lower_vec_to_movs(nir);