FrozenGene commented on a change in pull request #6042:
URL: https://github.com/apache/incubator-tvm/pull/6042#discussion_r453482210
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File path: src/tir/transforms/unroll_loop.cc
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@@ -57,6 +58,9 @@ struct UnrollLoopConfigNode : public
tvm::AttrsNode<UnrollLoopConfigNode> {
TVM_ATTR_FIELD(explicit_unroll)
.describe("Whether to explicitly unroll the loop instead of setting a
pragma")
.set_default(true);
+ TVM_ATTR_FIELD(explicit_unroll_max_extent)
+ .describe("The maximum extent of a loop that can be unrolled
explicitly (-1 for infinite)")
+ .set_default(32);
Review comment:
How about change the default value to `16`? As like ARM CPU (especially
arm 32 bits), 32 is still a little bigger for them. `16` should cover common
hardwares.
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