https://git.ruby-lang.org/ruby.git/commit/?id=50d8c3d443

From 50d8c3d4430cc8726b0d2745440e9de01eb4dfb9 Mon Sep 17 00:00:00 2001
From: Alan Wu <XrXr@u...>
Date: Wed, 4 Nov 2020 12:03:39 -0500
Subject: MicroJIT: Count number of compiled instructions better

---
 ujit_compile.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/ujit_compile.c b/ujit_compile.c
index 6a2863c1c8..e6b3864cd9 100644
--- a/ujit_compile.c
+++ b/ujit_compile.c
@@ -402,8 +402,8 @@ ujit_compile_insn(const rb_iseq_t *iseq, unsigned int insn_idx, unsigned int *ne https://github.com/ruby/ruby/blob/trunk/ujit_compile.c#L402
     ctx.replacement_idx = insn_idx;
 
     // For each instruction to compile
-    unsigned num_instrs;
-    for (num_instrs = 0;; ++num_instrs) {
+    unsigned num_instrs = 0;
+    for (;;) {
         // Set the current PC
         ctx.pc = &encoded[insn_idx];
 
@@ -434,6 +434,7 @@ ujit_compile_insn(const rb_iseq_t *iseq, unsigned int insn_idx, unsigned int *ne https://github.com/ruby/ruby/blob/trunk/ujit_compile.c#L434
 
     	// Move to the next instruction
         insn_idx += insn_len(opcode);
+        num_instrs++;
 
         // Ensure we only have one send per region. Our code invalidation mechanism can't
         // invalidate running code and one send could invalidate the other if we had
-- 
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