Revert "Reland "[vm, compiler] Reduce alignment of Instructions and remove some debugging trap instructions."" This reverts commit 44da8af04f9c8b85ec8195c0f66992e33245cbdf. Reason for revert: SIMARM_X64 assembly generation is still broken. You can see the new bot "vm-kernel-precomp-linux-debug-simarm_x64" for failing tests. Also https://github.com/dart-lang/sdk/issues/38617 and https://github.com/flutter/flutter/issues/41484. Original change's description: > Reland "[vm, compiler] Reduce alignment of Instructions and remove some debugging trap instructions." > > Fix generating assembly from simarm_x64. > > Bug: https://github.com/dart-lang/sdk/issues/37103 > Bug: https://github.com/dart-lang/sdk/issues/38452 > Change-Id: Ic3402beb0278dc483ba82874cb573ce26b8669b2 > Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/118702 > Commit-Queue: Ryan Macnak <rmacnak@google.com> > Reviewed-by: Aart Bik <ajcbik@google.com> > Reviewed-by: Liam Appelbe <liama@google.com> TBR=aam@google.com,rmacnak@google.com,alexmarkov@google.com,ajcbik@google.com,liama@google.com # Not skipping CQ checks because original CL landed > 1 day ago. Bug: https://github.com/dart-lang/sdk/issues/37103, https://github.com/dart-lang/sdk/issues/38452 Change-Id: If9fe95a04371d2960200ffc1f5e5c008298b9890 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/119149 Reviewed-by: Samir Jindel <sjindel@google.com> Commit-Queue: Samir Jindel <sjindel@google.com>
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