Skip to content

cinn(op): fix broadcast op #62594

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
BiynXu merged 2 commits into from
Mar 11, 2024
Merged

cinn(op): fix broadcast op #62594

Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
ba44930
cinn(op): fix broadcast op
6clc Mar 10, 2024
573f72f
cinn(op): fix broadcast op message
6clc Mar 10, 2024
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
15 changes: 10 additions & 5 deletions paddle/cinn/hlir/pe/broadcast.cc
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -23,6 +23,7 @@
#include "paddle/cinn/ir/utils/ir_copy.h"
#include "paddle/cinn/lang/builtin.h"
#include "paddle/cinn/lang/compute.h"
#include "paddle/common/errors.h"
PD_DECLARE_bool(cinn_bucket_compile);

namespace cinn {
Expand Down Expand Up @@ -376,16 +377,20 @@ Tensor BroadcastTo(const Tensor& A,
const std::vector<ir::Expr>& out_shape,
const std::string& out_name) {
auto A_shape = A->shape;
CHECK_EQ(A_shape.size(), out_shape.size())
<< "broadcast_to's out_shape's size should be same with the input "
"shape's size";
PADDLE_ENFORCE_GE(
out_shape.size(),
A_shape.size(),
::common::errors::InvalidArgument(
"broadcast_to's out_shape's size should be GreaterEqual "
"with the input shape's size"));

return Compute(
ToCinnExprs(out_shape),
[=](const std::vector<Expr>& indice) {
std::vector<Expr> broadcast_indice;
for (int idx = 0; idx < out_shape.size(); ++idx) {
ir::Expr a_shape_i = A_shape[idx];
int out_A_offset = out_shape.size() - A_shape.size();
for (int idx = out_A_offset; idx < out_shape.size(); ++idx) {
ir::Expr a_shape_i = A_shape[idx - out_A_offset];
if (MathEqual(a_shape_i, ir::Expr(1))) {
broadcast_indice.push_back(ir::Expr(0));
} else if (MathEqual(a_shape_i, out_shape[idx])) {
Expand Down