From fcb55c0037baab6f98f91ee38ce84b6f874f034a Mon Sep 17 00:00:00 2001
From: Mark Shannon <mark@hotpy.org>
Date: Thu, 1 Apr 2021 16:00:31 +0100
Subject: bpo-27129: Use instruction offsets, not byte offsets, in bytecode and
 internally. (GH-25069)

* Use instruction offset, rather than bytecode offset. Streamlines interpreter dispatch a bit, and removes most EXTENDED_ARGs for jumps.

* Change some uses of PyCode_Addr2Line to PyFrame_GetLineNumber
---
 Objects/codeobject.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'Objects/codeobject.c')

diff --git a/Objects/codeobject.c b/Objects/codeobject.c
index 69cb31c1ab..9bb49f108b 100644
--- a/Objects/codeobject.c
+++ b/Objects/codeobject.c
@@ -1246,7 +1246,7 @@ PyTypeObject PyCode_Type = {
 int
 PyCode_Addr2Line(PyCodeObject *co, int addrq)
 {
-    if (addrq == -1) {
+    if (addrq < 0) {
         return co->co_firstlineno;
     }
     assert(addrq >= 0 && addrq < PyBytes_GET_SIZE(co->co_code));
-- 
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