merrymercy commented on a change in pull request #5898:
URL: https://github.com/apache/incubator-tvm/pull/5898#discussion_r444982909
##########
File path: src/tir/analysis/verify_gpu_code.cc
##########
@@ -62,6 +64,9 @@ class GPUCodeVerifier : public StmtVisitor {
size_t size = static_cast<size_t>(op->constant_allocation_size());
shared_memory_per_block_ += size * op->dtype.bytes() * op->dtype.lanes();
}
+ if (op->dtype.lanes() > 1) {
+ valid_ &= op->dtype.lanes() * op->dtype.bytes() <=
static_cast<int>(max_vector_bytes_);
Review comment:
Cast INT64_MAX to int will cause overflow. You should cast the LHS.
##########
File path: src/tir/analysis/verify_gpu_code.cc
##########
@@ -62,6 +64,9 @@ class GPUCodeVerifier : public StmtVisitor {
size_t size = static_cast<size_t>(op->constant_allocation_size());
shared_memory_per_block_ += size * op->dtype.bytes() * op->dtype.lanes();
}
+ if (op->dtype.lanes() > 1) {
+ valid_ &= op->dtype.lanes() * op->dtype.bytes() <=
static_cast<int>(max_vector_bytes_);
Review comment:
Cast INT64_MAX to int will cause an overflow. You should cast the LHS.
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