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nir: use nir_foreach_ssa_def for indexing ssa defs

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This is both simpler and more correct.  The old code didn't properly index
load_const instructions.

Reviewed-by: Connor Abbott <cwabbott0@gmail.com>
This commit is contained in:
Jason Ekstrand 2015-02-03 21:04:57 -08:00
parent 0167c38cac
commit e025943134
1 changed files with 6 additions and 24 deletions
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30
src/glsl/nir/nir.c
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@ -2004,38 +2004,20 @@ nir_index_blocks(nir_function_impl *impl)
impl->num_blocks = index;
}
static void
index_ssa_def(nir_ssa_def *def, unsigned *index)
{
def->index = (*index)++;
}
static bool
index_ssa_def_cb(nir_dest *dest, void *state)
index_ssa_def_cb(nir_ssa_def *def, void *state)
{
unsigned *index = state;
if (dest->is_ssa)
index_ssa_def(&dest->ssa, index);
return true;
}
unsigned *index = (unsigned *) state;
def->index = (*index)++;
static void
index_ssa_undef(nir_ssa_undef_instr *instr, unsigned *index)
{
index_ssa_def(&instr->def, index);
return true;
}
static bool
index_ssa_block(nir_block *block, void *state)
{
unsigned *index = state;
nir_foreach_instr(block, instr) {
if (instr->type == nir_instr_type_ssa_undef)
index_ssa_undef(nir_instr_as_ssa_undef(instr), index);
else
nir_foreach_dest(instr, index_ssa_def_cb, state);
}
nir_foreach_instr(block, instr)
nir_foreach_ssa_def(instr, index_ssa_def_cb, state);
return true;
}