[flags] Move --regexp-interpret-all implication to flag-definitions

The new flags implementation can handle these kinds of implications.

Change-Id: I97cb5adbe00e4c6d92d13b4378582b4035c36475
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3030707
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#75784}

src/flags/flag-definitions.h

@@ -1678,6 +1678,7 @@ DEFINE_BOOL(regexp_interpret_all, false, "interpret all regexp code")
 DEFINE_BOOL(regexp_tier_up, true,
             "enable regexp interpreter and tier up to the compiler after the "
             "number of executions set by the tier up ticks flag")
+DEFINE_NEG_IMPLICATION(regexp_interpret_all, regexp_tier_up)
 DEFINE_INT(regexp_tier_up_ticks, 1,
            "set the number of executions for the regexp interpreter before "
            "tiering-up to the compiler")

src/init/v8.cc

@@ -160,12 +160,6 @@ void V8::InitializeOncePerProcessImpl() {
     DISABLE_FLAG(trace_turbo_stack_accesses);
   }
 
-  if (FLAG_regexp_interpret_all && FLAG_regexp_tier_up) {
-    // Turning off the tier-up strategy, because the --regexp-interpret-all and
-    // --regexp-tier-up flags are incompatible.
-    DISABLE_FLAG(regexp_tier_up);
-  }
-
   // The --jitless and --interpreted-frames-native-stack flags are incompatible
   // since the latter requires code generation while the former prohibits code
   // generation.

tools/testrunner/local/variants.py

@@ -53,7 +53,8 @@ ALL_VARIANT_FLAGS = {
 # implications defined in flag-definitions.h.
 INCOMPATIBLE_FLAGS_PER_VARIANT = {
   "jitless": ["--opt", "--always-opt", "--liftoff", "--track-field-types",
-              "--validate-asm", "--sparkplug", "--always-sparkplug"],
+              "--validate-asm", "--sparkplug", "--always-sparkplug",
+              "--regexp-tier-up"],
   "nooptimization": ["--always-opt"],
   "slow_path": ["--no-force-slow-path"],
   "stress_concurrent_allocation": ["--single-threaded-gc", "--predictable"],