Nico Hartmann 88eac4b870 [turboshaft] Basic TypedOptimization and new DeadCodeElimination ... This CL introduces typed optimizations for Turboshaft, which replaces all operations that produce a constant output (and don't have side effects) by the corresponding constant. In addition, a new pass for eliminating dead code is introduced that cannot only remove dead operations, but also rewrite branches that are not required into GotoOps. Drive-by: Introduce -0 as a "special value" for Float32Type and Float64Type to fix a few issues where 0 and -0 have been treated as identical. Bug: v8:12783 Change-Id: Ia1450ad7a9abb5d58c7d753596ed08a33a73184f Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4110993 Reviewed-by: Darius Mercadier <dmercadier@chromium.org> Commit-Queue: Nico Hartmann <nicohartmann@chromium.org> Cr-Commit-Position: refs/heads/main@{#85143}		2023-01-09 13:23:56 +00:00
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snapshot-table-unittest.cc	[turboshaft] SnapshotTable: remove Scope and add predecessors	2022-11-17 13:47:27 +00:00
turboshaft-types-unittest.cc	[turboshaft] Basic TypedOptimization and new DeadCodeElimination	2023-01-09 13:23:56 +00:00