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nir/lower_goto_ifs: Add asserts for SSA forks 

Reviewed-by: Karol Herbst <kherbst@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6750>
This commit is contained in:
Jason Ekstrand 2020-09-23 16:52:18 -05:00 committed by Marge Bot
parent dc010cb74e
commit 7749983658
1 changed files with 8 additions and 4 deletions
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12
src/compiler/nir/nir_lower_goto_ifs.c
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@ -170,10 +170,12 @@ set_path_vars_cond(nir_builder *b, struct path_fork *fork, nir_src condition,
for (i = 0; i < 2; i++) {
if (_mesa_set_search(fork->paths[i].reachable, then_block)) {
if (_mesa_set_search(fork->paths[i].reachable, else_block)) {
if (fork->is_var)
if (fork->is_var) {
nir_store_var(b, fork->path_var, nir_imm_bool(b, i), 1);
else
} else {
assert(fork->path_ssa == NULL);
fork->path_ssa = nir_imm_bool(b, i);
}
fork = fork->paths[i].fork;
break;
}
@ -184,10 +186,12 @@ set_path_vars_cond(nir_builder *b, struct path_fork *fork, nir_src condition,
assert(ssa_def->num_components == 1);
if (!i)
ssa_def = nir_inot(b, ssa_def);
if (fork->is_var)
if (fork->is_var) {
nir_store_var(b, fork->path_var, ssa_def, 1);
else
} else {
assert(fork->path_ssa == NULL);
fork->path_ssa = ssa_def;
}
set_path_vars(b, fork->paths[i].fork, then_block);
set_path_vars(b, fork->paths[!i].fork, else_block);
return;