Revert "[TurboProp] Add MidTierMachineLoweringPhase to avoid Late/MemoryOptimizationPhases"
This reverts commit c70de45c. Reason for revert: speculative revert Original change's description: > [TurboProp] Add MidTierMachineLoweringPhase to avoid Late/MemoryOptimizationPhases > > Adds a MidTierMachineLoweringPhase which does select and memory lowering to machine > nodes. This allows TurboProp to avoid the LateOptimizationPhase and > MemoryOptimizationPhase phases while still lowering all simplified nodes to > machine nodes before instruction selection. > > BUG=v8:9684 > > Change-Id: I60533db93152ff044a2fa8c1c31adedeb3747856 > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1815130 > Reviewed-by: Georg Neis <neis@chromium.org> > Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> > Cr-Commit-Position: refs/heads/master@{#63981} TBR=rmcilroy@chromium.org,neis@chromium.org Change-Id: I99cddb2c435ad6347bdc9b61b95d48dca94294c7 No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: v8:9684 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1826720Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org> Cr-Commit-Position: refs/heads/master@{#63984}
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