From 5a11098754979aaafd2f61f85d89ad9a28e6a8ba Mon Sep 17 00:00:00 2001
From: Max Bernstein <ruby@bernsteinbear.com>
Date: Mon, 19 Oct 2026 15:41:28 -0400
Subject: [PATCH] ZJIT: Don't profile splatkw instruction

We don't use the profiles anymore.
---
 insns.def                      |  1 -
 yjit/src/cruby_bindings.inc.rs | 63 +++++++++++++++++-----------------
 zjit/src/cruby_bindings.inc.rs | 63 +++++++++++++++++-----------------
 zjit/src/profile.rs            |  1 -
 4 files changed, 62 insertions(+), 66 deletions(-)

diff --git a/insns.def b/insns.def
index 40f155e25f3..69c31c052e4 100644
--- a/insns.def
+++ b/insns.def
@@ -569,7 +569,6 @@ splatkw
 (VALUE hash, VALUE block)
 (VALUE obj, VALUE block)
 // attr bool leaf = false; /* has rb_to_hash_type() */
-// attr bool zjit_profile = true;
 {
     if (NIL_P(hash)) {
         obj = Qnil;
diff --git a/yjit/src/cruby_bindings.inc.rs b/yjit/src/cruby_bindings.inc.rs
index 3547abdeec1..497fba74c9f 100644
--- a/yjit/src/cruby_bindings.inc.rs
+++ b/yjit/src/cruby_bindings.inc.rs
@@ -1008,38 +1008,37 @@ pub const YARVINSN_trace_putobject_INT2FIX_0_: ruby_vminsn_type = 224;
 pub const YARVINSN_trace_putobject_INT2FIX_1_: ruby_vminsn_type = 225;
 pub const YARVINSN_zjit_getinstancevariable: ruby_vminsn_type = 226;
 pub const YARVINSN_zjit_setinstancevariable: ruby_vminsn_type = 227;
-pub const YARVINSN_zjit_splatkw: ruby_vminsn_type = 228;
-pub const YARVINSN_zjit_definedivar: ruby_vminsn_type = 229;
-pub const YARVINSN_zjit_send: ruby_vminsn_type = 230;
-pub const YARVINSN_zjit_opt_send_without_block: ruby_vminsn_type = 231;
-pub const YARVINSN_zjit_objtostring: ruby_vminsn_type = 232;
-pub const YARVINSN_zjit_opt_nil_p: ruby_vminsn_type = 233;
-pub const YARVINSN_zjit_invokesuper: ruby_vminsn_type = 234;
-pub const YARVINSN_zjit_invokeblock: ruby_vminsn_type = 235;
-pub const YARVINSN_zjit_opt_case_dispatch: ruby_vminsn_type = 236;
-pub const YARVINSN_zjit_opt_plus: ruby_vminsn_type = 237;
-pub const YARVINSN_zjit_opt_minus: ruby_vminsn_type = 238;
-pub const YARVINSN_zjit_opt_mult: ruby_vminsn_type = 239;
-pub const YARVINSN_zjit_opt_div: ruby_vminsn_type = 240;
-pub const YARVINSN_zjit_opt_mod: ruby_vminsn_type = 241;
-pub const YARVINSN_zjit_opt_eq: ruby_vminsn_type = 242;
-pub const YARVINSN_zjit_opt_neq: ruby_vminsn_type = 243;
-pub const YARVINSN_zjit_opt_lt: ruby_vminsn_type = 244;
-pub const YARVINSN_zjit_opt_le: ruby_vminsn_type = 245;
-pub const YARVINSN_zjit_opt_gt: ruby_vminsn_type = 246;
-pub const YARVINSN_zjit_opt_ge: ruby_vminsn_type = 247;
-pub const YARVINSN_zjit_opt_ltlt: ruby_vminsn_type = 248;
-pub const YARVINSN_zjit_opt_and: ruby_vminsn_type = 249;
-pub const YARVINSN_zjit_opt_or: ruby_vminsn_type = 250;
-pub const YARVINSN_zjit_opt_aref: ruby_vminsn_type = 251;
-pub const YARVINSN_zjit_opt_aset: ruby_vminsn_type = 252;
-pub const YARVINSN_zjit_opt_length: ruby_vminsn_type = 253;
-pub const YARVINSN_zjit_opt_size: ruby_vminsn_type = 254;
-pub const YARVINSN_zjit_opt_empty_p: ruby_vminsn_type = 255;
-pub const YARVINSN_zjit_opt_succ: ruby_vminsn_type = 256;
-pub const YARVINSN_zjit_opt_not: ruby_vminsn_type = 257;
-pub const YARVINSN_zjit_opt_regexpmatch2: ruby_vminsn_type = 258;
-pub const VM_INSTRUCTION_SIZE: ruby_vminsn_type = 259;
+pub const YARVINSN_zjit_definedivar: ruby_vminsn_type = 228;
+pub const YARVINSN_zjit_send: ruby_vminsn_type = 229;
+pub const YARVINSN_zjit_opt_send_without_block: ruby_vminsn_type = 230;
+pub const YARVINSN_zjit_objtostring: ruby_vminsn_type = 231;
+pub const YARVINSN_zjit_opt_nil_p: ruby_vminsn_type = 232;
+pub const YARVINSN_zjit_invokesuper: ruby_vminsn_type = 233;
+pub const YARVINSN_zjit_invokeblock: ruby_vminsn_type = 234;
+pub const YARVINSN_zjit_opt_case_dispatch: ruby_vminsn_type = 235;
+pub const YARVINSN_zjit_opt_plus: ruby_vminsn_type = 236;
+pub const YARVINSN_zjit_opt_minus: ruby_vminsn_type = 237;
+pub const YARVINSN_zjit_opt_mult: ruby_vminsn_type = 238;
+pub const YARVINSN_zjit_opt_div: ruby_vminsn_type = 239;
+pub const YARVINSN_zjit_opt_mod: ruby_vminsn_type = 240;
+pub const YARVINSN_zjit_opt_eq: ruby_vminsn_type = 241;
+pub const YARVINSN_zjit_opt_neq: ruby_vminsn_type = 242;
+pub const YARVINSN_zjit_opt_lt: ruby_vminsn_type = 243;
+pub const YARVINSN_zjit_opt_le: ruby_vminsn_type = 244;
+pub const YARVINSN_zjit_opt_gt: ruby_vminsn_type = 245;
+pub const YARVINSN_zjit_opt_ge: ruby_vminsn_type = 246;
+pub const YARVINSN_zjit_opt_ltlt: ruby_vminsn_type = 247;
+pub const YARVINSN_zjit_opt_and: ruby_vminsn_type = 248;
+pub const YARVINSN_zjit_opt_or: ruby_vminsn_type = 249;
+pub const YARVINSN_zjit_opt_aref: ruby_vminsn_type = 250;
+pub const YARVINSN_zjit_opt_aset: ruby_vminsn_type = 251;
+pub const YARVINSN_zjit_opt_length: ruby_vminsn_type = 252;
+pub const YARVINSN_zjit_opt_size: ruby_vminsn_type = 253;
+pub const YARVINSN_zjit_opt_empty_p: ruby_vminsn_type = 254;
+pub const YARVINSN_zjit_opt_succ: ruby_vminsn_type = 255;
+pub const YARVINSN_zjit_opt_not: ruby_vminsn_type = 256;
+pub const YARVINSN_zjit_opt_regexpmatch2: ruby_vminsn_type = 257;
+pub const VM_INSTRUCTION_SIZE: ruby_vminsn_type = 258;
 pub type ruby_vminsn_type = u32;
 pub const DEFINED_NOT_DEFINED: defined_type = 0;
 pub const DEFINED_NIL: defined_type = 1;
diff --git a/zjit/src/cruby_bindings.inc.rs b/zjit/src/cruby_bindings.inc.rs
index 2ce31249af2..6b62ce2a42f 100644
--- a/zjit/src/cruby_bindings.inc.rs
+++ b/zjit/src/cruby_bindings.inc.rs
@@ -1989,38 +1989,37 @@ pub const YARVINSN_trace_putobject_INT2FIX_0_: ruby_vminsn_type = 224;
 pub const YARVINSN_trace_putobject_INT2FIX_1_: ruby_vminsn_type = 225;
 pub const YARVINSN_zjit_getinstancevariable: ruby_vminsn_type = 226;
 pub const YARVINSN_zjit_setinstancevariable: ruby_vminsn_type = 227;
-pub const YARVINSN_zjit_splatkw: ruby_vminsn_type = 228;
-pub const YARVINSN_zjit_definedivar: ruby_vminsn_type = 229;
-pub const YARVINSN_zjit_send: ruby_vminsn_type = 230;
-pub const YARVINSN_zjit_opt_send_without_block: ruby_vminsn_type = 231;
-pub const YARVINSN_zjit_objtostring: ruby_vminsn_type = 232;
-pub const YARVINSN_zjit_opt_nil_p: ruby_vminsn_type = 233;
-pub const YARVINSN_zjit_invokesuper: ruby_vminsn_type = 234;
-pub const YARVINSN_zjit_invokeblock: ruby_vminsn_type = 235;
-pub const YARVINSN_zjit_opt_case_dispatch: ruby_vminsn_type = 236;
-pub const YARVINSN_zjit_opt_plus: ruby_vminsn_type = 237;
-pub const YARVINSN_zjit_opt_minus: ruby_vminsn_type = 238;
-pub const YARVINSN_zjit_opt_mult: ruby_vminsn_type = 239;
-pub const YARVINSN_zjit_opt_div: ruby_vminsn_type = 240;
-pub const YARVINSN_zjit_opt_mod: ruby_vminsn_type = 241;
-pub const YARVINSN_zjit_opt_eq: ruby_vminsn_type = 242;
-pub const YARVINSN_zjit_opt_neq: ruby_vminsn_type = 243;
-pub const YARVINSN_zjit_opt_lt: ruby_vminsn_type = 244;
-pub const YARVINSN_zjit_opt_le: ruby_vminsn_type = 245;
-pub const YARVINSN_zjit_opt_gt: ruby_vminsn_type = 246;
-pub const YARVINSN_zjit_opt_ge: ruby_vminsn_type = 247;
-pub const YARVINSN_zjit_opt_ltlt: ruby_vminsn_type = 248;
-pub const YARVINSN_zjit_opt_and: ruby_vminsn_type = 249;
-pub const YARVINSN_zjit_opt_or: ruby_vminsn_type = 250;
-pub const YARVINSN_zjit_opt_aref: ruby_vminsn_type = 251;
-pub const YARVINSN_zjit_opt_aset: ruby_vminsn_type = 252;
-pub const YARVINSN_zjit_opt_length: ruby_vminsn_type = 253;
-pub const YARVINSN_zjit_opt_size: ruby_vminsn_type = 254;
-pub const YARVINSN_zjit_opt_empty_p: ruby_vminsn_type = 255;
-pub const YARVINSN_zjit_opt_succ: ruby_vminsn_type = 256;
-pub const YARVINSN_zjit_opt_not: ruby_vminsn_type = 257;
-pub const YARVINSN_zjit_opt_regexpmatch2: ruby_vminsn_type = 258;
-pub const VM_INSTRUCTION_SIZE: ruby_vminsn_type = 259;
+pub const YARVINSN_zjit_definedivar: ruby_vminsn_type = 228;
+pub const YARVINSN_zjit_send: ruby_vminsn_type = 229;
+pub const YARVINSN_zjit_opt_send_without_block: ruby_vminsn_type = 230;
+pub const YARVINSN_zjit_objtostring: ruby_vminsn_type = 231;
+pub const YARVINSN_zjit_opt_nil_p: ruby_vminsn_type = 232;
+pub const YARVINSN_zjit_invokesuper: ruby_vminsn_type = 233;
+pub const YARVINSN_zjit_invokeblock: ruby_vminsn_type = 234;
+pub const YARVINSN_zjit_opt_case_dispatch: ruby_vminsn_type = 235;
+pub const YARVINSN_zjit_opt_plus: ruby_vminsn_type = 236;
+pub const YARVINSN_zjit_opt_minus: ruby_vminsn_type = 237;
+pub const YARVINSN_zjit_opt_mult: ruby_vminsn_type = 238;
+pub const YARVINSN_zjit_opt_div: ruby_vminsn_type = 239;
+pub const YARVINSN_zjit_opt_mod: ruby_vminsn_type = 240;
+pub const YARVINSN_zjit_opt_eq: ruby_vminsn_type = 241;
+pub const YARVINSN_zjit_opt_neq: ruby_vminsn_type = 242;
+pub const YARVINSN_zjit_opt_lt: ruby_vminsn_type = 243;
+pub const YARVINSN_zjit_opt_le: ruby_vminsn_type = 244;
+pub const YARVINSN_zjit_opt_gt: ruby_vminsn_type = 245;
+pub const YARVINSN_zjit_opt_ge: ruby_vminsn_type = 246;
+pub const YARVINSN_zjit_opt_ltlt: ruby_vminsn_type = 247;
+pub const YARVINSN_zjit_opt_and: ruby_vminsn_type = 248;
+pub const YARVINSN_zjit_opt_or: ruby_vminsn_type = 249;
+pub const YARVINSN_zjit_opt_aref: ruby_vminsn_type = 250;
+pub const YARVINSN_zjit_opt_aset: ruby_vminsn_type = 251;
+pub const YARVINSN_zjit_opt_length: ruby_vminsn_type = 252;
+pub const YARVINSN_zjit_opt_size: ruby_vminsn_type = 253;
+pub const YARVINSN_zjit_opt_empty_p: ruby_vminsn_type = 254;
+pub const YARVINSN_zjit_opt_succ: ruby_vminsn_type = 255;
+pub const YARVINSN_zjit_opt_not: ruby_vminsn_type = 256;
+pub const YARVINSN_zjit_opt_regexpmatch2: ruby_vminsn_type = 257;
+pub const VM_INSTRUCTION_SIZE: ruby_vminsn_type = 258;
 pub type ruby_vminsn_type = u32;
 #[repr(C)]
 #[repr(align(8))]
diff --git a/zjit/src/profile.rs b/zjit/src/profile.rs
index beacb6ba117..036163ca41c 100644
--- a/zjit/src/profile.rs
+++ b/zjit/src/profile.rs
@@ -101,7 +101,6 @@ fn profile_insn_sample(
             profile_operands(profiler, profile, argc + 1);
             profile_splat_length(profiler, profile, unsafe { (*cd).ci });
         }
-        YARVINSN_splatkw => profile_operands(profiler, profile, 2),
         _ => return false,
     }