[PATCH] D148071: [LoopUnroll] Prevent LoopFullUnrollPass to perform partial/runtime unrolling

[Nikita Popov via Phabricator via llvm-commits]

nikic added inline comments.


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Comment at: llvm/test/Transforms/LoopUnroll/full-unroll-keep-first-exit.ll:3
 ; RUN: opt -S -passes=loop-unroll < %s | FileCheck %s
-; RUN: opt -S -passes='require<opt-remark-emit>,loop(loop-unroll-full)' < %s | FileCheck %s
 
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Can you please restore this check line, possibly with an additional prefix?


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Comment at: llvm/test/Transforms/LoopUnroll/revisit.ll:11
 ; Also run in a special mode that visits children.
 ; RUN: opt < %s -disable-output -debug-pass-manager -unroll-revisit-child-loops 2>&1 \
 ; RUN: -passes='require<opt-remark-emit>,loop(loop-unroll-full)' \
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yassingh wrote:
> How can I add an appropriate test for this option "unroll-revisit-child-loops"? 
I think you can just drop the option entirely, it no longer makes sense. We can probably `assert(!IsCurrentLoopValid)` now: Full unrolling should always invalidate the current loop.


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