kongroo commented on a change in pull request #7561:
URL: https://github.com/apache/tvm/pull/7561#discussion_r585348096
##########
File path: src/target/source/codegen_cuda.cc
##########
@@ -238,12 +253,53 @@ void CodeGenCUDA::PrintType(DataType t, std::ostream& os)
{ // NOLINT(*)
break;
}
}
- case 16:
- os << "short";
- break;
- case 32:
- os << "int";
+ case 16: {
+ if (t.is_scalar()) {
+ os << "short";
+ } else if (t.lanes() <= 4) {
+ os << "short" << lanes;
+ } else if (t.lanes() <= 8) {
+ // Emit CUDA code to access int16 vector elements.
+ //
+ // short4 is stored as int2
+ //
+ // s4.x is emitted as *(short2*)(&(i2.x)).x
+ // s4.y is emitted as *(short2*)(&(i2.x)).y
+ // s4.z is emitted as *(short2*)(&(i2.y)).x
+ // s4.w is emitted as *(short2*)(&(i2.y)).y
+ //
+ ICHECK_EQ(t.lanes() % 2, 0) << "only support even lane for shorT
type with lanes > 4";
+ os << "int" << t.lanes() / 2;
+ } else {
+ fail = true;
+ }
+ if (!fail) {
+ return;
+ }
Review comment:
fixed
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