https://git.ruby-lang.org/ruby.git/commit/?id=c299112fd7

From c299112fd7eb4432f3fdc83a9f5716e8e79249f4 Mon Sep 17 00:00:00 2001
From: Maxime Chevalier-Boisvert <maxime.chevalierboisvert@s...>
Date: Thu, 1 Apr 2021 16:56:20 -0400
Subject: use ctx_stack_push_self()

---
 yjit_codegen.c | 6 ++++--
 yjit_core.h    | 7 +++++--
 2 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/yjit_codegen.c b/yjit_codegen.c
index 12aa893993..18c8f7c4e9 100644
--- a/yjit_codegen.c
+++ b/yjit_codegen.c
@@ -429,7 +429,7 @@ gen_putobject(jitstate_t* jit, ctx_t* ctx) https://github.com/ruby/ruby/blob/trunk/yjit_codegen.c#L429
     }
     else if (arg == Qtrue || arg == Qfalse)
     {
-        x86opnd_t stack_top = ctx_stack_push(ctx, TYPE_UNKNOWN);
+        x86opnd_t stack_top = ctx_stack_push(ctx, TYPE_IMM);
         mov(cb, stack_top, imm_opnd((int64_t)arg));
     }
     else
@@ -440,6 +440,8 @@ gen_putobject(jitstate_t* jit, ctx_t* ctx) https://github.com/ruby/ruby/blob/trunk/yjit_codegen.c#L440
         mov(cb, RAX, pc_plus_one);
         mov(cb, RAX, mem_opnd(64, RAX, 0));
 
+        // TODO: check if argument is a heap object
+
         // Write argument at SP
         x86opnd_t stack_top = ctx_stack_push(ctx, TYPE_UNKNOWN);
         mov(cb, stack_top, RAX);
@@ -468,7 +470,7 @@ gen_putself(jitstate_t* jit, ctx_t* ctx) https://github.com/ruby/ruby/blob/trunk/yjit_codegen.c#L470
     mov(cb, RAX, member_opnd(REG_CFP, rb_control_frame_t, self));
 
     // Write it on the stack
-    x86opnd_t stack_top = ctx_stack_push(ctx, TYPE_UNKNOWN);
+    x86opnd_t stack_top = ctx_stack_push_self(ctx);
     mov(cb, stack_top, RAX);
 
     return YJIT_KEEP_COMPILING;
diff --git a/yjit_core.h b/yjit_core.h
index 6001838c50..1a55408a7b 100644
--- a/yjit_core.h
+++ b/yjit_core.h
@@ -31,7 +31,8 @@ typedef enum yjit_type_enum https://github.com/ruby/ruby/blob/trunk/yjit_core.h#L31
     ETYPE_UNKNOWN = 0,
     ETYPE_NIL,
     ETYPE_FIXNUM,
-    //ETYPE_ARRAY
+    ETYPE_ARRAY,
+    ETYPE_HASH
     //ETYPE_SYMBOL
     //ETYPE_STRING
 
@@ -63,9 +64,10 @@ STATIC_ASSERT(val_type_size, sizeof(val_type_t) == 1); https://github.com/ruby/ruby/blob/trunk/yjit_core.h#L64
 // Could be any immediate
 #define TYPE_IMM ( (val_type_t){ .is_imm = 1 } )
 
-// Immediate types
 #define TYPE_NIL ( (val_type_t){ .is_imm = 1, .type = ETYPE_NIL } )
 #define TYPE_FIXNUM ( (val_type_t){ .is_imm = 1, .type = ETYPE_FIXNUM } )
+#define TYPE_ARRAY ( (val_type_t){ .is_heap = 1, .type = ETYPE_ARRAY } )
+#define TYPE_HASH ( (val_type_t){ .is_heap = 1, .type = ETYPE_HASH } )
 
 typedef enum yjit_temp_loc
 {
@@ -215,6 +217,7 @@ typedef struct yjit_block_version https://github.com/ruby/ruby/blob/trunk/yjit_core.h#L217
 // Context object methods
 x86opnd_t ctx_sp_opnd(ctx_t* ctx, int32_t offset_bytes);
 x86opnd_t ctx_stack_push(ctx_t* ctx, val_type_t type);
+x86opnd_t ctx_stack_push_self(ctx_t* ctx);
 x86opnd_t ctx_stack_pop(ctx_t* ctx, size_t n);
 x86opnd_t ctx_stack_opnd(ctx_t* ctx, int32_t idx);
 val_type_t ctx_get_temp_type(const ctx_t* ctx, size_t idx);
-- 
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