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[CODEGEN] Fix extract_N_bufferable in layout analysis (#728)

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This commit is contained in:
Shintaro Iwasaki
2022-09-30 12:21:22 -07:00
committed by GitHub
parent ae59f51c2d
commit 7b61303ea1
1 changed files with 12 additions and 8 deletions
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14
lib/codegen/analysis/layout.cc
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@@ -367,11 +367,15 @@ void shared_layout::extract_double_bufferable(ir::value *v, std::shared_ptr<doub
res.reset(new double_buffer_info_t{value_1, value_0, phi});
}
static bool is_smem(ir::value* v) {
static bool is_smem_in(ir::value* v, const ir::basic_block* bb) {
if (ir::instruction *instr = dynamic_cast<ir::instruction*>(v)) {
if (instr->get_parent() != bb)
return false;
if (dynamic_cast<ir::copy_to_shared_inst*>(v) ||
dynamic_cast<ir::masked_load_async_inst*>(v))
dynamic_cast<ir::masked_load_async_inst*>(v)) {
return true;
else
}
}
return false;
}
@@ -387,14 +391,14 @@ static bool is_multistage_pipe_phi(ir::phi_node* phi, ir::basic_block* bb0, ir::
ir::basic_block *cbb0 = cphi->get_incoming_block(0);
ir::basic_block *cbb1 = cphi->get_incoming_block(1);
if (is_smem(c0)) {
if (is_smem_in(c0, cbb0)) {
assert(cbb0 == bb0);
values_0.push_back(c0);
if (auto phi1 = dynamic_cast<ir::phi_node*>(c1)) {
next = phi1;
continue;
} else {
if (is_smem(c1)) {
if (is_smem_in(c1, cbb1)) {
value_1 = c1;
assert(cbb1 == bb1);
return true;