cconvey commented on code in PR #12639:
URL: https://github.com/apache/tvm/pull/12639#discussion_r974519945
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src/target/llvm/codegen_hexagon.cc:
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@@ -513,6 +513,13 @@ runtime::Module BuildHexagon(IRModule mod, Target target) {
{"-hexagon-small-data-threshold=0",
"-force-target-max-vector-interleave=1",
"-hexagon-autohvx=1"});
+ // Disable unrolling (bug fix in LLVM 16 for int8 vectors)
+ // TODO: figure out why unroll is causing significant compile
+ // time and binary size issues for bert int8 model among others.
+#if TVM_LLVM_VERSION >= 160
+ llvm_options_vec.insert({"-unroll-threshold=0"})
+#endif
Review Comment:
That makes sense. If someone really needs to work around this, they can
also just comment-out that `#ifdef` temporarily.
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