[maglev] Enable loop SPeeling

o- · V8 LUCI CQ · commit a44a16f55c41 · 2024-07-31T12:39:16.000Z
Bug: 350764035 Change-Id: Iab0ea608b9a997d3ab1e11cae9ca0717bca622e9 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/5743764 Auto-Submit: Olivier Flückiger <olivf@chromium.org> Reviewed-by: Victor Gomes <victorgomes@chromium.org> Commit-Queue: Olivier Flückiger <olivf@chromium.org> Cr-Commit-Position: refs/heads/main@{#95405}
diff --git a/src/flags/flag-definitions.h b/src/flags/flag-definitions.h
@@ -566,8 +566,8 @@ DEFINE_BOOL(maglev_inlining, true,
             "enable inlining in the maglev optimizing compiler")
 DEFINE_BOOL(maglev_loop_peeling, true,
             "enable loop peeling in the maglev optimizing compiler")
-DEFINE_BOOL(maglev_optimistic_peeled_loops, false,
-            "enable speculation on loop state using peeling as fallback in the "
+DEFINE_BOOL(maglev_optimistic_peeled_loops, true,
+            "enable aggressive optimizations for loops (loop SPeeling) in the "
             "maglev optimizing compiler")
 DEFINE_INT(maglev_loop_peeling_max_size, 200,
            "max loop size for loop peeling in the maglev optimizing compiler")
@@ -581,7 +581,6 @@ DEFINE_BOOL(maglev_destroy_on_background, true,
             "Destroy compilation jobs on background thread")
 DEFINE_BOOL(maglev_inline_api_calls, false,
             "Inline CallApiCallback builtin into generated code")
-DEFINE_WEAK_IMPLICATION(maglev_future, maglev_optimistic_peeled_loops)
 DEFINE_WEAK_IMPLICATION(maglev_future, maglev_speculative_hoist_phi_untagging)
 DEFINE_WEAK_IMPLICATION(maglev_future, maglev_inline_api_calls)
 DEFINE_WEAK_IMPLICATION(maglev_future, maglev_escape_analysis)
