nir/nir: Use a linked list instead of a hash set for use/def sets
This commit switches us from the current setup of using hash sets for use/def sets to using linked lists. Doing so should save us quite a bit of memory because we aren't carrying around 3 hash sets per register and 2 per SSA value. It should also save us CPU time because adding/removing things from use/def sets is 4 pointer manipulations instead of a hash lookup. Running shader-db 50 times with USE_NIR=0, NIR, and NIR + use/def lists: GLSL IR Only: 586.4 +/- 1.653833 NIR with hash sets: 675.4 +/- 2.502108 NIR + use/def lists: 641.2 +/- 1.557043 I also ran a memory usage experiment with Ken's patch to delete GLSL IR and keep NIR. This patch cuts an aditional 42.9 MiB of ralloc'd memory over and above what we gained by deleting the GLSL IR on the same dota trace. On the code complexity side of things, some things are now much easier and others are a bit harder. One of the operations we perform constantly in optimization passes is to replace one source with another. Due to the fact that an instruction can use the same SSA value multiple times, we had to iterate through the sources of the instruction and determine if the use we were replacing was the only one before removing it from the set of uses. With this patch, uses are per-source not per-instruction so we can just remove it safely. On the other hand, trying to iterate over all of the instructions that use a given value is more difficult. Fortunately, the two places we do that are the ffma peephole where it doesn't matter and GCM where we already gracefully handle duplicates visits to an instruction. Another aspect here is that using linked lists in this way can be tricky to get right. With sets, things were quite forgiving and the worst that happened if you didn't properly remove a use was that it would get caught in the validator. With linked lists, it can lead to linked list corruption which can be harder to track. However, we do just as much validation of the linked lists as we did of the sets so the validator should still catch these problems. While working on this series, the vast majority of the bugs I had to fix were caught by assertions. I don't think the lists are going to be that much worse than the sets. Reviewed-by: Connor Abbott <cwabbott0@gmail.com>
This commit is contained in:
parent
2c2cd368aa
commit
f752effa08
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@ -58,12 +58,9 @@ reg_create(void *mem_ctx, struct exec_list *list)
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nir_register *reg = ralloc(mem_ctx, nir_register);
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reg->parent_instr = NULL;
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reg->uses = _mesa_set_create(reg, _mesa_hash_pointer,
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_mesa_key_pointer_equal);
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reg->defs = _mesa_set_create(reg, _mesa_hash_pointer,
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_mesa_key_pointer_equal);
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reg->if_uses = _mesa_set_create(reg, _mesa_hash_pointer,
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_mesa_key_pointer_equal);
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list_inithead(®->uses);
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list_inithead(®->defs);
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list_inithead(®->if_uses);
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reg->num_components = 0;
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reg->num_array_elems = 0;
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@ -1070,11 +1067,14 @@ update_if_uses(nir_cf_node *node)
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nir_if *if_stmt = nir_cf_node_as_if(node);
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struct set *if_uses_set = if_stmt->condition.is_ssa ?
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if_stmt->condition.ssa->if_uses :
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if_stmt->condition.reg.reg->uses;
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_mesa_set_add(if_uses_set, if_stmt);
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if_stmt->condition.parent_if = if_stmt;
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if (if_stmt->condition.is_ssa) {
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list_addtail(&if_stmt->condition.use_link,
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&if_stmt->condition.ssa->if_uses);
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} else {
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list_addtail(&if_stmt->condition.use_link,
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&if_stmt->condition.reg.reg->if_uses);
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}
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}
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void
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@ -1227,16 +1227,7 @@ cleanup_cf_node(nir_cf_node *node)
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foreach_list_typed(nir_cf_node, child, node, &if_stmt->else_list)
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cleanup_cf_node(child);
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struct set *if_uses;
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if (if_stmt->condition.is_ssa) {
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if_uses = if_stmt->condition.ssa->if_uses;
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} else {
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if_uses = if_stmt->condition.reg.reg->if_uses;
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}
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struct set_entry *entry = _mesa_set_search(if_uses, if_stmt);
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assert(entry);
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_mesa_set_remove(if_uses, entry);
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list_del(&if_stmt->condition.use_link);
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break;
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}
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@ -1293,9 +1284,9 @@ add_use_cb(nir_src *src, void *state)
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{
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nir_instr *instr = state;
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struct set *uses_set = src->is_ssa ? src->ssa->uses : src->reg.reg->uses;
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_mesa_set_add(uses_set, instr);
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src->parent_instr = instr;
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list_addtail(&src->use_link,
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src->is_ssa ? &src->ssa->uses : &src->reg.reg->uses);
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return true;
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}
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@ -1320,8 +1311,10 @@ add_reg_def_cb(nir_dest *dest, void *state)
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{
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nir_instr *instr = state;
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if (!dest->is_ssa)
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_mesa_set_add(dest->reg.reg->defs, instr);
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if (!dest->is_ssa) {
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dest->reg.parent_instr = instr;
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list_addtail(&dest->reg.def_link, &dest->reg.reg->defs);
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}
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return true;
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}
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@ -1436,13 +1429,7 @@ nir_instr_insert_after_cf_list(struct exec_list *list, nir_instr *after)
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static bool
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remove_use_cb(nir_src *src, void *state)
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{
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nir_instr *instr = state;
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struct set *uses_set = src->is_ssa ? src->ssa->uses : src->reg.reg->uses;
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struct set_entry *entry = _mesa_set_search(uses_set, instr);
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if (entry)
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_mesa_set_remove(uses_set, entry);
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list_del(&src->use_link);
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return true;
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}
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@ -1450,16 +1437,8 @@ remove_use_cb(nir_src *src, void *state)
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static bool
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remove_def_cb(nir_dest *dest, void *state)
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{
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nir_instr *instr = state;
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if (dest->is_ssa)
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return true;
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nir_register *reg = dest->reg.reg;
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struct set_entry *entry = _mesa_set_search(reg->defs, instr);
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if (entry)
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_mesa_set_remove(reg->defs, entry);
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if (!dest->is_ssa)
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list_del(&dest->reg.def_link);
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return true;
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}
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@ -1834,86 +1813,77 @@ nir_srcs_equal(nir_src src1, nir_src src2)
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}
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static bool
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src_does_not_use_def(nir_src *src, void *void_def)
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src_is_valid(const nir_src *src)
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{
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nir_ssa_def *def = void_def;
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return src->is_ssa ? (src->ssa != NULL) : (src->reg.reg != NULL);
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}
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if (src->is_ssa) {
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return src->ssa != def;
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} else {
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return true;
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static void
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src_remove_all_uses(nir_src *src)
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{
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for (; src; src = src->is_ssa ? NULL : src->reg.indirect) {
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if (!src_is_valid(src))
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continue;
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list_del(&src->use_link);
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}
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}
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static bool
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src_does_not_use_reg(nir_src *src, void *void_reg)
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static void
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src_add_all_uses(nir_src *src, nir_instr *parent_instr, nir_if *parent_if)
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{
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nir_register *reg = void_reg;
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for (; src; src = src->is_ssa ? NULL : src->reg.indirect) {
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if (!src_is_valid(src))
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continue;
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if (src->is_ssa) {
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return true;
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} else {
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return src->reg.reg != reg;
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if (parent_instr) {
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src->parent_instr = parent_instr;
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if (src->is_ssa)
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list_addtail(&src->use_link, &src->ssa->uses);
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else
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list_addtail(&src->use_link, &src->reg.reg->uses);
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} else {
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assert(parent_if);
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src->parent_if = parent_if;
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if (src->is_ssa)
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list_addtail(&src->use_link, &src->ssa->if_uses);
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else
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list_addtail(&src->use_link, &src->reg.reg->if_uses);
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}
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}
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}
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void
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nir_instr_rewrite_src(nir_instr *instr, nir_src *src, nir_src new_src)
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{
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nir_src old_src = *src;
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assert(!src_is_valid(src) || src->parent_instr == instr);
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src_remove_all_uses(src);
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*src = new_src;
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src_add_all_uses(src, instr, NULL);
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}
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for (nir_src *iter_src = &old_src; iter_src;
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iter_src = iter_src->is_ssa ? NULL : iter_src->reg.indirect) {
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if (iter_src->is_ssa) {
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nir_ssa_def *ssa = iter_src->ssa;
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if (ssa && nir_foreach_src(instr, src_does_not_use_def, ssa)) {
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struct set_entry *entry = _mesa_set_search(ssa->uses, instr);
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assert(entry);
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_mesa_set_remove(ssa->uses, entry);
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}
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} else {
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nir_register *reg = iter_src->reg.reg;
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if (reg && nir_foreach_src(instr, src_does_not_use_reg, reg)) {
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struct set_entry *entry = _mesa_set_search(reg->uses, instr);
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assert(entry);
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_mesa_set_remove(reg->uses, entry);
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}
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}
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}
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void
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nir_instr_move_src(nir_instr *dest_instr, nir_src *dest, nir_src *src)
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{
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assert(!src_is_valid(dest) || dest->parent_instr == dest_instr);
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for (nir_src *iter_src = &new_src; iter_src;
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iter_src = iter_src->is_ssa ? NULL : iter_src->reg.indirect) {
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if (iter_src->is_ssa) {
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if (iter_src->ssa)
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_mesa_set_add(iter_src->ssa->uses, instr);
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} else {
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if (iter_src->reg.reg)
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_mesa_set_add(iter_src->reg.reg->uses, instr);
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}
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}
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src_remove_all_uses(dest);
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src_remove_all_uses(src);
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*dest = *src;
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*src = NIR_SRC_INIT;
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src_add_all_uses(dest, dest_instr, NULL);
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}
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void
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nir_if_rewrite_condition(nir_if *if_stmt, nir_src new_src)
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{
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for (nir_src *src = &if_stmt->condition; src;
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src = src->is_ssa ? NULL : src->reg.indirect) {
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struct set *uses = src->is_ssa ? src->ssa->if_uses
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: src->reg.reg->if_uses;
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struct set_entry *entry = _mesa_set_search(uses, if_stmt);
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assert(entry);
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_mesa_set_remove(uses, entry);
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}
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nir_src *src = &if_stmt->condition;
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assert(!src_is_valid(src) || src->parent_if == if_stmt);
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if_stmt->condition = new_src;
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for (nir_src *src = &if_stmt->condition; src;
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src = src->is_ssa ? NULL : src->reg.indirect) {
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struct set *uses = src->is_ssa ? src->ssa->if_uses
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: src->reg.reg->if_uses;
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_mesa_set_add(uses, if_stmt);
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}
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src_remove_all_uses(src);
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*src = new_src;
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src_add_all_uses(src, NULL, if_stmt);
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}
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void
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@ -1922,10 +1892,8 @@ nir_ssa_def_init(nir_instr *instr, nir_ssa_def *def,
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{
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def->name = name;
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def->parent_instr = instr;
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def->uses = _mesa_set_create(instr, _mesa_hash_pointer,
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_mesa_key_pointer_equal);
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def->if_uses = _mesa_set_create(instr, _mesa_hash_pointer,
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_mesa_key_pointer_equal);
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list_inithead(&def->uses);
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list_inithead(&def->if_uses);
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def->num_components = num_components;
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if (instr->block) {
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@ -1946,57 +1914,23 @@ nir_ssa_dest_init(nir_instr *instr, nir_dest *dest,
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nir_ssa_def_init(instr, &dest->ssa, num_components, name);
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}
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struct ssa_def_rewrite_state {
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void *mem_ctx;
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nir_ssa_def *old;
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nir_src new_src;
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};
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static bool
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ssa_def_rewrite_uses_src(nir_src *src, void *void_state)
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{
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struct ssa_def_rewrite_state *state = void_state;
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if (src->is_ssa && src->ssa == state->old)
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nir_src_copy(src, &state->new_src, state->mem_ctx);
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return true;
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}
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void
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nir_ssa_def_rewrite_uses(nir_ssa_def *def, nir_src new_src, void *mem_ctx)
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{
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struct ssa_def_rewrite_state state;
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state.mem_ctx = mem_ctx;
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state.old = def;
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state.new_src = new_src;
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assert(!new_src.is_ssa || def != new_src.ssa);
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struct set *new_uses, *new_if_uses;
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if (new_src.is_ssa) {
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new_uses = new_src.ssa->uses;
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new_if_uses = new_src.ssa->if_uses;
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} else {
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new_uses = new_src.reg.reg->uses;
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new_if_uses = new_src.reg.reg->if_uses;
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nir_foreach_use_safe(def, use_src) {
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nir_instr *src_parent_instr = use_src->parent_instr;
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list_del(&use_src->use_link);
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nir_src_copy(use_src, &new_src, mem_ctx);
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src_add_all_uses(use_src, src_parent_instr, NULL);
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}
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struct set_entry *entry;
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set_foreach(def->uses, entry) {
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nir_instr *instr = (nir_instr *)entry->key;
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_mesa_set_remove(def->uses, entry);
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nir_foreach_src(instr, ssa_def_rewrite_uses_src, &state);
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_mesa_set_add(new_uses, instr);
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}
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set_foreach(def->if_uses, entry) {
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nir_if *if_use = (nir_if *)entry->key;
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_mesa_set_remove(def->if_uses, entry);
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nir_src_copy(&if_use->condition, &new_src, mem_ctx);
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_mesa_set_add(new_if_uses, if_use);
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nir_foreach_if_use_safe(def, use_src) {
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nir_if *src_parent_if = use_src->parent_if;
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list_del(&use_src->use_link);
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nir_src_copy(use_src, &new_src, mem_ctx);
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src_add_all_uses(use_src, NULL, src_parent_if);
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}
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}
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@ -30,6 +30,7 @@
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#include "util/hash_table.h"
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#include "../list.h"
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#include "GL/gl.h" /* GLenum */
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#include "util/list.h"
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#include "util/ralloc.h"
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#include "util/set.h"
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#include "util/bitset.h"
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@ -397,13 +398,13 @@ typedef struct {
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struct nir_instr *parent_instr;
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/** set of nir_instr's where this register is used (read from) */
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struct set *uses;
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struct list_head uses;
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/** set of nir_instr's where this register is defined (written to) */
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struct set *defs;
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struct list_head defs;
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/** set of nir_if's where this register is used as a condition */
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struct set *if_uses;
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struct list_head if_uses;
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} nir_register;
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typedef enum {
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@ -462,10 +463,10 @@ typedef struct {
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nir_instr *parent_instr;
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/** set of nir_instr's where this register is used (read from) */
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struct set *uses;
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struct list_head uses;
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/** set of nir_if's where this register is used as a condition */
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struct set *if_uses;
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struct list_head if_uses;
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uint8_t num_components;
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} nir_ssa_def;
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@ -481,6 +482,9 @@ typedef struct {
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} nir_reg_src;
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typedef struct {
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nir_instr *parent_instr;
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struct list_head def_link;
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nir_register *reg;
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struct nir_src *indirect; /** < NULL for no indirect offset */
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unsigned base_offset;
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@ -488,7 +492,16 @@ typedef struct {
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/* TODO def-use chain goes here */
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} nir_reg_dest;
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struct nir_if;
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typedef struct nir_src {
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union {
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nir_instr *parent_instr;
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struct nir_if *parent_if;
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};
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struct list_head use_link;
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union {
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nir_reg_src reg;
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nir_ssa_def *ssa;
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@ -497,7 +510,19 @@ typedef struct nir_src {
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bool is_ssa;
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} nir_src;
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#define NIR_SRC_INIT (nir_src) { { { NULL } } }
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#define NIR_SRC_INIT (nir_src) { { NULL } }
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#define nir_foreach_use(reg_or_ssa_def, src) \
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list_for_each_entry(nir_src, src, &(reg_or_ssa_def)->uses, use_link)
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#define nir_foreach_use_safe(reg_or_ssa_def, src) \
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list_for_each_entry_safe(nir_src, src, &(reg_or_ssa_def)->uses, use_link)
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|
||||
#define nir_foreach_if_use(reg_or_ssa_def, src) \
|
||||
list_for_each_entry(nir_src, src, &(reg_or_ssa_def)->if_uses, use_link)
|
||||
|
||||
#define nir_foreach_if_use_safe(reg_or_ssa_def, src) \
|
||||
list_for_each_entry_safe(nir_src, src, &(reg_or_ssa_def)->if_uses, use_link)
|
||||
|
||||
typedef struct {
|
||||
union {
|
||||
|
@ -510,6 +535,12 @@ typedef struct {
|
|||
|
||||
#define NIR_DEST_INIT (nir_dest) { { { NULL } } }
|
||||
|
||||
#define nir_foreach_def(reg, dest) \
|
||||
list_for_each_entry(nir_dest, dest, &(reg)->defs, reg.def_link)
|
||||
|
||||
#define nir_foreach_def_safe(reg, dest) \
|
||||
list_for_each_entry_safe(nir_dest, dest, &(reg)->defs, reg.def_link)
|
||||
|
||||
static inline nir_src
|
||||
nir_src_for_ssa(nir_ssa_def *def)
|
||||
{
|
||||
|
@ -1208,7 +1239,7 @@ nir_block_last_instr(nir_block *block)
|
|||
#define nir_foreach_instr_safe(block, instr) \
|
||||
foreach_list_typed_safe(nir_instr, instr, node, &(block)->instr_list)
|
||||
|
||||
typedef struct {
|
||||
typedef struct nir_if {
|
||||
nir_cf_node cf_node;
|
||||
nir_src condition;
|
||||
|
||||
|
@ -1549,6 +1580,7 @@ bool nir_foreach_src(nir_instr *instr, nir_foreach_src_cb cb, void *state);
|
|||
nir_const_value *nir_src_as_const_value(nir_src src);
|
||||
bool nir_srcs_equal(nir_src src1, nir_src src2);
|
||||
void nir_instr_rewrite_src(nir_instr *instr, nir_src *src, nir_src new_src);
|
||||
void nir_instr_move_src(nir_instr *dest_instr, nir_src *dest, nir_src *src);
|
||||
void nir_if_rewrite_condition(nir_if *if_stmt, nir_src new_src);
|
||||
|
||||
void nir_ssa_dest_init(nir_instr *instr, nir_dest *dest,
|
||||
|
|
|
@ -503,7 +503,7 @@ rewrite_ssa_def(nir_ssa_def *def, void *void_state)
|
|||
}
|
||||
|
||||
nir_ssa_def_rewrite_uses(def, nir_src_for_reg(reg), state->mem_ctx);
|
||||
assert(def->uses->entries == 0 && def->if_uses->entries == 0);
|
||||
assert(list_empty(&def->uses) && list_empty(&def->if_uses));
|
||||
|
||||
if (def->parent_instr->type == nir_instr_type_ssa_undef)
|
||||
return true;
|
||||
|
@ -515,12 +515,9 @@ rewrite_ssa_def(nir_ssa_def *def, void *void_state)
|
|||
*/
|
||||
nir_dest *dest = exec_node_data(nir_dest, def, ssa);
|
||||
|
||||
_mesa_set_destroy(dest->ssa.uses, NULL);
|
||||
_mesa_set_destroy(dest->ssa.if_uses, NULL);
|
||||
|
||||
*dest = nir_dest_for_reg(reg);
|
||||
|
||||
_mesa_set_add(reg->defs, state->instr);
|
||||
dest->reg.parent_instr = state->instr;
|
||||
list_addtail(&dest->reg.def_link, ®->defs);
|
||||
|
||||
return true;
|
||||
}
|
||||
|
|
|
@ -269,18 +269,16 @@ lower_locals_to_regs_block(nir_block *block, void *void_state)
|
|||
static nir_block *
|
||||
compute_reg_usedef_lca(nir_register *reg)
|
||||
{
|
||||
struct set_entry *entry;
|
||||
nir_block *lca = NULL;
|
||||
|
||||
set_foreach(reg->defs, entry)
|
||||
lca = nir_dominance_lca(lca, ((nir_instr *)entry->key)->block);
|
||||
list_for_each_entry(nir_dest, def_dest, ®->defs, reg.def_link)
|
||||
lca = nir_dominance_lca(lca, def_dest->reg.parent_instr->block);
|
||||
|
||||
set_foreach(reg->uses, entry)
|
||||
lca = nir_dominance_lca(lca, ((nir_instr *)entry->key)->block);
|
||||
list_for_each_entry(nir_src, use_src, ®->uses, use_link)
|
||||
lca = nir_dominance_lca(lca, use_src->parent_instr->block);
|
||||
|
||||
set_foreach(reg->if_uses, entry) {
|
||||
nir_if *if_stmt = (nir_if *)entry->key;
|
||||
nir_cf_node *prev_node = nir_cf_node_prev(&if_stmt->cf_node);
|
||||
list_for_each_entry(nir_src, use_src, ®->if_uses, use_link) {
|
||||
nir_cf_node *prev_node = nir_cf_node_prev(&use_src->parent_if->cf_node);
|
||||
assert(prev_node->type == nir_cf_node_block);
|
||||
lca = nir_dominance_lca(lca, nir_cf_node_as_block(prev_node));
|
||||
}
|
||||
|
|
|
@ -83,21 +83,30 @@ lower_sampler(nir_tex_instr *instr, const struct gl_shader_program *shader_progr
|
|||
ralloc_asprintf_append(&name, "[%u]", deref_array->base_offset);
|
||||
break;
|
||||
case nir_deref_array_type_indirect: {
|
||||
instr->src = reralloc(instr, instr->src, nir_tex_src,
|
||||
instr->num_srcs + 1);
|
||||
memset(&instr->src[instr->num_srcs], 0, sizeof *instr->src);
|
||||
/* First, we have to resize the array of texture sources */
|
||||
nir_tex_src *new_srcs = rzalloc_array(instr, nir_tex_src,
|
||||
instr->num_srcs + 1);
|
||||
|
||||
for (unsigned i = 0; i < instr->num_srcs; i++) {
|
||||
new_srcs[i].src_type = instr->src[i].src_type;
|
||||
nir_instr_move_src(&instr->instr, &new_srcs[i].src,
|
||||
&instr->src[i].src);
|
||||
}
|
||||
|
||||
ralloc_free(instr->src);
|
||||
instr->src = new_srcs;
|
||||
|
||||
/* Now we can go ahead and move the source over to being a
|
||||
* first-class texture source.
|
||||
*/
|
||||
instr->src[instr->num_srcs].src_type = nir_tex_src_sampler_offset;
|
||||
instr->num_srcs++;
|
||||
|
||||
nir_instr_rewrite_src(&instr->instr,
|
||||
&instr->src[instr->num_srcs - 1].src,
|
||||
deref_array->indirect);
|
||||
nir_instr_move_src(&instr->instr,
|
||||
&instr->src[instr->num_srcs - 1].src,
|
||||
&deref_array->indirect);
|
||||
|
||||
instr->sampler_array_size = glsl_get_length(deref->type);
|
||||
|
||||
nir_instr_rewrite_src(&instr->instr, &deref_array->indirect,
|
||||
NIR_SRC_INIT);
|
||||
|
||||
if (deref_array->deref.child)
|
||||
ralloc_strcat(&name, "[0]");
|
||||
break;
|
||||
|
|
|
@ -111,9 +111,10 @@ nir_lower_tex_projector_block(nir_block *block, void *void_state)
|
|||
*/
|
||||
nir_instr_rewrite_src(&tex->instr, &tex->src[proj_index].src,
|
||||
NIR_SRC_INIT);
|
||||
memmove(&tex->src[proj_index],
|
||||
&tex->src[proj_index + 1],
|
||||
(tex->num_srcs - proj_index) * sizeof(*tex->src));
|
||||
for (int i = proj_index + 1; i < tex->num_srcs; i++) {
|
||||
tex->src[i-1].src_type = tex->src[i].src_type;
|
||||
nir_instr_move_src(&tex->instr, &tex->src[i-1].src, &tex->src[i].src);
|
||||
}
|
||||
tex->num_srcs--;
|
||||
}
|
||||
|
||||
|
|
|
@ -88,8 +88,8 @@ nir_lower_to_source_mods_block(nir_block *block, void *state)
|
|||
alu->src[i].swizzle[j] = parent->src[0].swizzle[alu->src[i].swizzle[j]];
|
||||
}
|
||||
|
||||
if (parent->dest.dest.ssa.uses->entries == 0 &&
|
||||
parent->dest.dest.ssa.if_uses->entries == 0)
|
||||
if (list_empty(&parent->dest.dest.ssa.uses) &&
|
||||
list_empty(&parent->dest.dest.ssa.if_uses))
|
||||
nir_instr_remove(&parent->instr);
|
||||
}
|
||||
|
||||
|
@ -131,13 +131,13 @@ nir_lower_to_source_mods_block(nir_block *block, void *state)
|
|||
if (nir_op_infos[alu->op].output_type != nir_type_float)
|
||||
continue;
|
||||
|
||||
if (alu->dest.dest.ssa.if_uses->entries != 0)
|
||||
if (!list_empty(&alu->dest.dest.ssa.if_uses))
|
||||
continue;
|
||||
|
||||
bool all_children_are_sat = true;
|
||||
struct set_entry *entry;
|
||||
set_foreach(alu->dest.dest.ssa.uses, entry) {
|
||||
const nir_instr *child = entry->key;
|
||||
nir_foreach_use(&alu->dest.dest.ssa, child_src) {
|
||||
assert(child_src->is_ssa);
|
||||
nir_instr *child = child_src->parent_instr;
|
||||
if (child->type != nir_instr_type_alu) {
|
||||
all_children_are_sat = false;
|
||||
continue;
|
||||
|
@ -161,8 +161,12 @@ nir_lower_to_source_mods_block(nir_block *block, void *state)
|
|||
|
||||
alu->dest.saturate = true;
|
||||
|
||||
set_foreach(alu->dest.dest.ssa.uses, entry) {
|
||||
nir_alu_instr *child_alu = nir_instr_as_alu((nir_instr *)entry->key);
|
||||
nir_foreach_use(&alu->dest.dest.ssa, child_src) {
|
||||
assert(child_src->is_ssa);
|
||||
nir_instr *child = child_src->parent_instr;
|
||||
assert(child->type == nir_instr_type_alu);
|
||||
nir_alu_instr *child_alu = nir_instr_as_alu(child);
|
||||
|
||||
child_alu->op = nir_op_fmov;
|
||||
child_alu->dest.saturate = false;
|
||||
/* We could propagate the dest of our instruction to the
|
||||
|
|
|
@ -567,10 +567,11 @@ add_phi_sources(nir_block *block, nir_block *pred,
|
|||
|
||||
nir_phi_src *src = ralloc(phi, nir_phi_src);
|
||||
src->pred = pred;
|
||||
src->src.parent_instr = &phi->instr;
|
||||
src->src.is_ssa = true;
|
||||
src->src.ssa = get_ssa_def_for_block(node, pred, state);
|
||||
|
||||
_mesa_set_add(src->src.ssa->uses, instr);
|
||||
list_addtail(&src->src.use_link, &src->src.ssa->uses);
|
||||
|
||||
exec_list_push_tail(&phi->srcs, &src->node);
|
||||
}
|
||||
|
|
|
@ -279,9 +279,8 @@ gcm_schedule_late_def(nir_ssa_def *def, void *void_state)
|
|||
|
||||
nir_block *lca = NULL;
|
||||
|
||||
struct set_entry *entry;
|
||||
set_foreach(def->uses, entry) {
|
||||
nir_instr *use_instr = (nir_instr *)entry->key;
|
||||
nir_foreach_use(def, use_src) {
|
||||
nir_instr *use_instr = use_src->parent_instr;
|
||||
|
||||
gcm_schedule_late_instr(use_instr, state);
|
||||
|
||||
|
@ -304,8 +303,8 @@ gcm_schedule_late_def(nir_ssa_def *def, void *void_state)
|
|||
}
|
||||
}
|
||||
|
||||
set_foreach(def->if_uses, entry) {
|
||||
nir_if *if_stmt = (nir_if *)entry->key;
|
||||
nir_foreach_if_use(def, use_src) {
|
||||
nir_if *if_stmt = use_src->parent_if;
|
||||
|
||||
/* For if statements, we consider the block to be the one immediately
|
||||
* preceding the if CF node.
|
||||
|
@ -377,9 +376,8 @@ gcm_place_instr(nir_instr *instr, struct gcm_state *state);
|
|||
static bool
|
||||
gcm_place_instr_def(nir_ssa_def *def, void *state)
|
||||
{
|
||||
struct set_entry *entry;
|
||||
set_foreach(def->uses, entry)
|
||||
gcm_place_instr((nir_instr *)entry->key, state);
|
||||
nir_foreach_use(def, use_src)
|
||||
gcm_place_instr(use_src->parent_instr, state);
|
||||
|
||||
return false;
|
||||
}
|
||||
|
|
|
@ -34,9 +34,8 @@ global_to_local(nir_register *reg)
|
|||
|
||||
assert(reg->is_global);
|
||||
|
||||
struct set_entry *entry;
|
||||
set_foreach(reg->defs, entry) {
|
||||
nir_instr *instr = (nir_instr *) entry->key;
|
||||
nir_foreach_def(reg, def_dest) {
|
||||
nir_instr *instr = def_dest->reg.parent_instr;
|
||||
nir_function_impl *instr_impl =
|
||||
nir_cf_node_get_function(&instr->block->cf_node);
|
||||
if (impl != NULL) {
|
||||
|
@ -47,8 +46,8 @@ global_to_local(nir_register *reg)
|
|||
}
|
||||
}
|
||||
|
||||
set_foreach(reg->uses, entry) {
|
||||
nir_instr *instr = (nir_instr *) entry->key;
|
||||
nir_foreach_use(reg, use_src) {
|
||||
nir_instr *instr = use_src->parent_instr;
|
||||
nir_function_impl *instr_impl =
|
||||
nir_cf_node_get_function(&instr->block->cf_node);
|
||||
if (impl != NULL) {
|
||||
|
@ -59,8 +58,8 @@ global_to_local(nir_register *reg)
|
|||
}
|
||||
}
|
||||
|
||||
set_foreach(reg->if_uses, entry) {
|
||||
nir_if *if_stmt = (nir_if *) entry->key;
|
||||
nir_foreach_if_use(reg, use_src) {
|
||||
nir_if *if_stmt = use_src->parent_if;
|
||||
nir_function_impl *if_impl = nir_cf_node_get_function(&if_stmt->cf_node);
|
||||
if (impl != NULL) {
|
||||
if (impl != if_impl)
|
||||
|
|
|
@ -41,12 +41,11 @@ struct peephole_ffma_state {
|
|||
static inline bool
|
||||
are_all_uses_fadd(nir_ssa_def *def)
|
||||
{
|
||||
if (def->if_uses->entries > 0)
|
||||
if (!list_empty(&def->if_uses))
|
||||
return false;
|
||||
|
||||
struct set_entry *use_iter;
|
||||
set_foreach(def->uses, use_iter) {
|
||||
nir_instr *use_instr = (nir_instr *)use_iter->key;
|
||||
nir_foreach_use(def, use_src) {
|
||||
nir_instr *use_instr = use_src->parent_instr;
|
||||
|
||||
if (use_instr->type != nir_instr_type_alu)
|
||||
return false;
|
||||
|
@ -220,7 +219,7 @@ nir_opt_peephole_ffma_block(nir_block *block, void *void_state)
|
|||
state->mem_ctx);
|
||||
|
||||
nir_instr_insert_before(&add->instr, &ffma->instr);
|
||||
assert(add->dest.dest.ssa.uses->entries == 0);
|
||||
assert(list_empty(&add->dest.dest.ssa.uses));
|
||||
nir_instr_remove(&add->instr);
|
||||
|
||||
state->progress = true;
|
||||
|
|
|
@ -98,15 +98,13 @@ block_check_for_allowed_instrs(nir_block *block)
|
|||
return false;
|
||||
|
||||
/* It cannot have any if-uses */
|
||||
if (mov->dest.dest.ssa.if_uses->entries != 0)
|
||||
if (!list_empty(&mov->dest.dest.ssa.if_uses))
|
||||
return false;
|
||||
|
||||
/* The only uses of this definition must be phi's in the successor */
|
||||
struct set_entry *entry;
|
||||
set_foreach(mov->dest.dest.ssa.uses, entry) {
|
||||
const nir_instr *dest_instr = entry->key;
|
||||
if (dest_instr->type != nir_instr_type_phi ||
|
||||
dest_instr->block != block->successors[0])
|
||||
nir_foreach_use(&mov->dest.dest.ssa, use) {
|
||||
if (use->parent_instr->type != nir_instr_type_phi ||
|
||||
use->parent_instr->block != block->successors[0])
|
||||
return false;
|
||||
}
|
||||
break;
|
||||
|
|
|
@ -89,9 +89,8 @@ insert_phi_nodes(nir_function_impl *impl)
|
|||
w_start = w_end = 0;
|
||||
iter_count++;
|
||||
|
||||
struct set_entry *entry;
|
||||
set_foreach(reg->defs, entry) {
|
||||
nir_instr *def = (nir_instr *) entry->key;
|
||||
nir_foreach_def(reg, dest) {
|
||||
nir_instr *def = dest->reg.parent_instr;
|
||||
if (work[def->block->index] < iter_count)
|
||||
W[w_end++] = def->block;
|
||||
work[def->block->index] = iter_count;
|
||||
|
@ -99,6 +98,7 @@ insert_phi_nodes(nir_function_impl *impl)
|
|||
|
||||
while (w_start != w_end) {
|
||||
nir_block *cur = W[w_start++];
|
||||
struct set_entry *entry;
|
||||
set_foreach(cur->dom_frontier, entry) {
|
||||
nir_block *next = (nir_block *) entry->key;
|
||||
|
||||
|
@ -190,13 +190,12 @@ rewrite_use(nir_src *src, void *_state)
|
|||
if (state->states[index].stack == NULL)
|
||||
return true;
|
||||
|
||||
src->is_ssa = true;
|
||||
src->ssa = get_ssa_src(src->reg.reg, state);
|
||||
|
||||
nir_ssa_def *def = get_ssa_src(src->reg.reg, state);
|
||||
if (state->parent_instr)
|
||||
_mesa_set_add(src->ssa->uses, state->parent_instr);
|
||||
nir_instr_rewrite_src(state->parent_instr, src, nir_src_for_ssa(def));
|
||||
else
|
||||
_mesa_set_add(src->ssa->if_uses, state->parent_if);
|
||||
nir_if_rewrite_condition(state->parent_if, nir_src_for_ssa(def));
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
|
@ -219,6 +218,7 @@ rewrite_def_forwards(nir_dest *dest, void *_state)
|
|||
name = ralloc_asprintf(state->mem_ctx, "%s_%u", dest->reg.reg->name,
|
||||
state->states[index].num_defs);
|
||||
|
||||
list_del(&dest->reg.def_link);
|
||||
nir_ssa_dest_init(state->parent_instr, dest, reg->num_components, name);
|
||||
|
||||
/* push our SSA destination on the stack */
|
||||
|
@ -270,6 +270,7 @@ rewrite_alu_instr_forward(nir_alu_instr *instr, rewrite_state *state)
|
|||
reg->name, state->states[index].num_defs);
|
||||
|
||||
instr->dest.write_mask = (1 << num_components) - 1;
|
||||
list_del(&instr->dest.dest.reg.def_link);
|
||||
nir_ssa_dest_init(&instr->instr, &instr->dest.dest, num_components, name);
|
||||
|
||||
if (nir_op_infos[instr->op].output_size == 0) {
|
||||
|
@ -484,7 +485,7 @@ init_rewrite_state(nir_function_impl *impl, rewrite_state *state)
|
|||
* called after phi nodes are inserted so we can count phi node
|
||||
* definitions too.
|
||||
*/
|
||||
unsigned stack_size = reg->defs->entries;
|
||||
unsigned stack_size = list_length(®->defs);
|
||||
|
||||
state->states[reg->index].stack = ralloc_array(state->states,
|
||||
nir_ssa_def *,
|
||||
|
|
|
@ -97,50 +97,47 @@ typedef struct {
|
|||
static void validate_src(nir_src *src, validate_state *state);
|
||||
|
||||
static void
|
||||
validate_reg_src(nir_reg_src *src, validate_state *state)
|
||||
validate_reg_src(nir_src *src, validate_state *state)
|
||||
{
|
||||
assert(src->reg != NULL);
|
||||
assert(src->reg.reg != NULL);
|
||||
|
||||
struct hash_entry *entry;
|
||||
entry = _mesa_hash_table_search(state->regs, src->reg);
|
||||
entry = _mesa_hash_table_search(state->regs, src->reg.reg);
|
||||
assert(entry);
|
||||
|
||||
reg_validate_state *reg_state = (reg_validate_state *) entry->data;
|
||||
|
||||
if (state->instr) {
|
||||
_mesa_set_add(reg_state->uses, state->instr);
|
||||
|
||||
assert(_mesa_set_search(src->reg->uses, state->instr));
|
||||
_mesa_set_add(reg_state->uses, src);
|
||||
} else {
|
||||
assert(state->if_stmt);
|
||||
_mesa_set_add(reg_state->if_uses, state->if_stmt);
|
||||
|
||||
assert(_mesa_set_search(src->reg->if_uses, state->if_stmt));
|
||||
_mesa_set_add(reg_state->if_uses, src);
|
||||
}
|
||||
|
||||
if (!src->reg->is_global) {
|
||||
if (!src->reg.reg->is_global) {
|
||||
assert(reg_state->where_defined == state->impl &&
|
||||
"using a register declared in a different function");
|
||||
}
|
||||
|
||||
assert((src->reg->num_array_elems == 0 ||
|
||||
src->base_offset < src->reg->num_array_elems) &&
|
||||
assert((src->reg.reg->num_array_elems == 0 ||
|
||||
src->reg.base_offset < src->reg.reg->num_array_elems) &&
|
||||
"definitely out-of-bounds array access");
|
||||
|
||||
if (src->indirect) {
|
||||
assert(src->reg->num_array_elems != 0);
|
||||
assert((src->indirect->is_ssa || src->indirect->reg.indirect == NULL) &&
|
||||
if (src->reg.indirect) {
|
||||
assert(src->reg.reg->num_array_elems != 0);
|
||||
assert((src->reg.indirect->is_ssa ||
|
||||
src->reg.indirect->reg.indirect == NULL) &&
|
||||
"only one level of indirection allowed");
|
||||
validate_src(src->indirect, state);
|
||||
validate_src(src->reg.indirect, state);
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
validate_ssa_src(nir_ssa_def *def, validate_state *state)
|
||||
validate_ssa_src(nir_src *src, validate_state *state)
|
||||
{
|
||||
assert(def != NULL);
|
||||
assert(src->ssa != NULL);
|
||||
|
||||
struct hash_entry *entry = _mesa_hash_table_search(state->ssa_defs, def);
|
||||
struct hash_entry *entry = _mesa_hash_table_search(state->ssa_defs, src->ssa);
|
||||
|
||||
assert(entry);
|
||||
|
||||
|
@ -150,14 +147,10 @@ validate_ssa_src(nir_ssa_def *def, validate_state *state)
|
|||
"using an SSA value defined in a different function");
|
||||
|
||||
if (state->instr) {
|
||||
_mesa_set_add(def_state->uses, state->instr);
|
||||
|
||||
assert(_mesa_set_search(def->uses, state->instr));
|
||||
_mesa_set_add(def_state->uses, src);
|
||||
} else {
|
||||
assert(state->if_stmt);
|
||||
_mesa_set_add(def_state->if_uses, state->if_stmt);
|
||||
|
||||
assert(_mesa_set_search(def->if_uses, state->if_stmt));
|
||||
_mesa_set_add(def_state->if_uses, src);
|
||||
}
|
||||
|
||||
/* TODO validate that the use is dominated by the definition */
|
||||
|
@ -166,10 +159,15 @@ validate_ssa_src(nir_ssa_def *def, validate_state *state)
|
|||
static void
|
||||
validate_src(nir_src *src, validate_state *state)
|
||||
{
|
||||
if (src->is_ssa)
|
||||
validate_ssa_src(src->ssa, state);
|
||||
if (state->instr)
|
||||
assert(src->parent_instr == state->instr);
|
||||
else
|
||||
validate_reg_src(&src->reg, state);
|
||||
assert(src->parent_if == state->if_stmt);
|
||||
|
||||
if (src->is_ssa)
|
||||
validate_ssa_src(src, state);
|
||||
else
|
||||
validate_reg_src(src, state);
|
||||
}
|
||||
|
||||
static void
|
||||
|
@ -201,8 +199,7 @@ validate_reg_dest(nir_reg_dest *dest, validate_state *state)
|
|||
{
|
||||
assert(dest->reg != NULL);
|
||||
|
||||
struct set_entry *entry = _mesa_set_search(dest->reg->defs, state->instr);
|
||||
assert(entry && "definition not in nir_register.defs");
|
||||
assert(dest->parent_instr == state->instr);
|
||||
|
||||
struct hash_entry *entry2;
|
||||
entry2 = _mesa_hash_table_search(state->regs, dest->reg);
|
||||
|
@ -210,7 +207,7 @@ validate_reg_dest(nir_reg_dest *dest, validate_state *state)
|
|||
assert(entry2);
|
||||
|
||||
reg_validate_state *reg_state = (reg_validate_state *) entry2->data;
|
||||
_mesa_set_add(reg_state->defs, state->instr);
|
||||
_mesa_set_add(reg_state->defs, dest);
|
||||
|
||||
if (!dest->reg->is_global) {
|
||||
assert(reg_state->where_defined == state->impl &&
|
||||
|
@ -240,6 +237,9 @@ validate_ssa_def(nir_ssa_def *def, validate_state *state)
|
|||
|
||||
assert(def->num_components <= 4);
|
||||
|
||||
list_validate(&def->uses);
|
||||
list_validate(&def->if_uses);
|
||||
|
||||
ssa_def_validate_state *def_state = ralloc(state->ssa_defs,
|
||||
ssa_def_validate_state);
|
||||
def_state->where_defined = state->impl;
|
||||
|
@ -701,6 +701,10 @@ prevalidate_reg_decl(nir_register *reg, bool is_global, validate_state *state)
|
|||
assert(!BITSET_TEST(state->regs_found, reg->index));
|
||||
BITSET_SET(state->regs_found, reg->index);
|
||||
|
||||
list_validate(®->uses);
|
||||
list_validate(®->defs);
|
||||
list_validate(®->if_uses);
|
||||
|
||||
reg_validate_state *reg_state = ralloc(state->regs, reg_validate_state);
|
||||
reg_state->uses = _mesa_set_create(reg_state, _mesa_hash_pointer,
|
||||
_mesa_key_pointer_equal);
|
||||
|
@ -721,47 +725,47 @@ postvalidate_reg_decl(nir_register *reg, validate_state *state)
|
|||
|
||||
reg_validate_state *reg_state = (reg_validate_state *) entry->data;
|
||||
|
||||
if (reg_state->uses->entries != reg->uses->entries) {
|
||||
nir_foreach_use(reg, src) {
|
||||
struct set_entry *entry = _mesa_set_search(reg_state->uses, src);
|
||||
assert(entry);
|
||||
_mesa_set_remove(reg_state->uses, entry);
|
||||
}
|
||||
|
||||
if (reg_state->uses->entries != 0) {
|
||||
printf("extra entries in register uses:\n");
|
||||
struct set_entry *entry;
|
||||
set_foreach(reg->uses, entry) {
|
||||
struct set_entry *entry2 =
|
||||
_mesa_set_search(reg_state->uses, entry->key);
|
||||
|
||||
if (entry2 == NULL) {
|
||||
printf("%p\n", entry->key);
|
||||
}
|
||||
}
|
||||
set_foreach(reg_state->uses, entry)
|
||||
printf("%p\n", entry->key);
|
||||
|
||||
abort();
|
||||
}
|
||||
|
||||
if (reg_state->if_uses->entries != reg->if_uses->entries) {
|
||||
nir_foreach_if_use(reg, src) {
|
||||
struct set_entry *entry = _mesa_set_search(reg_state->if_uses, src);
|
||||
assert(entry);
|
||||
_mesa_set_remove(reg_state->if_uses, entry);
|
||||
}
|
||||
|
||||
if (reg_state->if_uses->entries != 0) {
|
||||
printf("extra entries in register if_uses:\n");
|
||||
struct set_entry *entry;
|
||||
set_foreach(reg->if_uses, entry) {
|
||||
struct set_entry *entry2 =
|
||||
_mesa_set_search(reg_state->if_uses, entry->key);
|
||||
|
||||
if (entry2 == NULL) {
|
||||
printf("%p\n", entry->key);
|
||||
}
|
||||
}
|
||||
set_foreach(reg_state->if_uses, entry)
|
||||
printf("%p\n", entry->key);
|
||||
|
||||
abort();
|
||||
}
|
||||
|
||||
if (reg_state->defs->entries != reg->defs->entries) {
|
||||
nir_foreach_def(reg, src) {
|
||||
struct set_entry *entry = _mesa_set_search(reg_state->defs, src);
|
||||
assert(entry);
|
||||
_mesa_set_remove(reg_state->defs, entry);
|
||||
}
|
||||
|
||||
if (reg_state->defs->entries != 0) {
|
||||
printf("extra entries in register defs:\n");
|
||||
struct set_entry *entry;
|
||||
set_foreach(reg->defs, entry) {
|
||||
struct set_entry *entry2 =
|
||||
_mesa_set_search(reg_state->defs, entry->key);
|
||||
|
||||
if (entry2 == NULL) {
|
||||
printf("%p\n", entry->key);
|
||||
}
|
||||
}
|
||||
set_foreach(reg_state->defs, entry)
|
||||
printf("%p\n", entry->key);
|
||||
|
||||
abort();
|
||||
}
|
||||
|
@ -790,32 +794,32 @@ postvalidate_ssa_def(nir_ssa_def *def, void *void_state)
|
|||
struct hash_entry *entry = _mesa_hash_table_search(state->ssa_defs, def);
|
||||
ssa_def_validate_state *def_state = (ssa_def_validate_state *)entry->data;
|
||||
|
||||
if (def_state->uses->entries != def->uses->entries) {
|
||||
printf("extra entries in SSA def uses:\n");
|
||||
struct set_entry *entry;
|
||||
set_foreach(def->uses, entry) {
|
||||
struct set_entry *entry2 =
|
||||
_mesa_set_search(def_state->uses, entry->key);
|
||||
nir_foreach_use(def, src) {
|
||||
struct set_entry *entry = _mesa_set_search(def_state->uses, src);
|
||||
assert(entry);
|
||||
_mesa_set_remove(def_state->uses, entry);
|
||||
}
|
||||
|
||||
if (entry2 == NULL) {
|
||||
printf("%p\n", entry->key);
|
||||
}
|
||||
}
|
||||
if (def_state->uses->entries != 0) {
|
||||
printf("extra entries in register uses:\n");
|
||||
struct set_entry *entry;
|
||||
set_foreach(def_state->uses, entry)
|
||||
printf("%p\n", entry->key);
|
||||
|
||||
abort();
|
||||
}
|
||||
|
||||
if (def_state->if_uses->entries != def->if_uses->entries) {
|
||||
printf("extra entries in SSA def uses:\n");
|
||||
struct set_entry *entry;
|
||||
set_foreach(def->if_uses, entry) {
|
||||
struct set_entry *entry2 =
|
||||
_mesa_set_search(def_state->if_uses, entry->key);
|
||||
nir_foreach_if_use(def, src) {
|
||||
struct set_entry *entry = _mesa_set_search(def_state->if_uses, src);
|
||||
assert(entry);
|
||||
_mesa_set_remove(def_state->if_uses, entry);
|
||||
}
|
||||
|
||||
if (entry2 == NULL) {
|
||||
printf("%p\n", entry->key);
|
||||
}
|
||||
}
|
||||
if (def_state->if_uses->entries != 0) {
|
||||
printf("extra entries in register uses:\n");
|
||||
struct set_entry *entry;
|
||||
set_foreach(def_state->if_uses, entry)
|
||||
printf("%p\n", entry->key);
|
||||
|
||||
abort();
|
||||
}
|
||||
|
|
Loading…
Reference in New Issue