fdo-mirrors/mesa
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/mesa/mesa.git synced 2026-01-02 18:10:17 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions 4

nir/inline: Break the guts of rewrite_param-derefs into a helper

Browse source 
Reviewed-by: Connor Abbott <cwabbott0@gmail.com>
This commit is contained in:
Jason Ekstrand 2016-05-25 10:48:05 -07:00
parent d19c406395
commit 2522180845
1 changed files with 30 additions and 19 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

49
src/compiler/nir/nir_inline_functions.c
View file

@ -27,6 +27,35 @@
static bool inline_function_impl(nir_function_impl *impl, struct set *inlined);
static void
convert_deref_to_param_deref(nir_instr *instr, nir_deref_var **deref,
nir_call_instr *call)
{
/* This isn't a parameter, just return the deref */
if ((*deref)->var->data.mode != nir_var_param)
return;
int param_idx = (*deref)->var->data.location;
nir_deref_var *call_deref;
if (param_idx >= 0) {
assert(param_idx < call->callee->num_params);
call_deref = call->params[param_idx];
} else {
call_deref = call->return_deref;
}
assert(call_deref);
/* Now we make a new deref by concatenating the deref in the call's
* parameter with the deref we were given.
*/
nir_deref_var *new_deref = nir_deref_as_var(nir_copy_deref(instr, &call_deref->deref));
nir_deref *new_tail = nir_deref_tail(&new_deref->deref);
new_tail->child = (*deref)->deref.child;
ralloc_steal(new_tail, new_tail->child);
*deref = new_deref;
}
static void
rewrite_param_derefs(nir_instr *instr, nir_call_instr *call)
{
@ -37,25 +66,7 @@ rewrite_param_derefs(nir_instr *instr, nir_call_instr *call)
for (unsigned i = 0;
i < nir_intrinsic_infos[intrin->intrinsic].num_variables; i++) {
if (intrin->variables[i]->var->data.mode != nir_var_param)
continue;
int param_idx = intrin->variables[i]->var->data.location;
nir_deref_var *call_deref;
if (param_idx >= 0) {
assert(param_idx < call->callee->num_params);
call_deref = call->params[param_idx];
} else {
call_deref = call->return_deref;
}
assert(call_deref);
nir_deref_var *new_deref = nir_deref_as_var(nir_copy_deref(intrin, &call_deref->deref));
nir_deref *new_tail = nir_deref_tail(&new_deref->deref);
new_tail->child = intrin->variables[i]->deref.child;
ralloc_steal(new_tail, new_tail->child);
intrin->variables[i] = new_deref;
convert_deref_to_param_deref(instr, &intrin->variables[i], call);
}
}