[3.15] gh-148825: Fix build error if specialization is disabled (GH-148826) (#152206)

miss-islington · cdce8p · web-flow · commit eaf4d7311292 · 2026-06-25T14:36:04.000Z
gh-148825: Fix build error if specialization is disabled (GH-148826) (cherry picked from commit 56ae0b8) Co-authored-by: Marc Mueller <30130371+cdce8p@users.noreply.github.com>
diff --git a/Misc/NEWS.d/next/Core_and_Builtins/2026-04-21-15-07-03.gh-issue-148825.AbJzmZ.rst b/Misc/NEWS.d/next/Core_and_Builtins/2026-04-21-15-07-03.gh-issue-148825.AbJzmZ.rst
@@ -0,0 +1 @@
+Fix build error if specialization is disabled.
diff --git a/Python/specialize.c b/Python/specialize.c
@@ -113,7 +113,8 @@ _PyCode_Quicken(_Py_CODEUNIT *instructions, Py_ssize_t size, int enable_counters
     }
     #else
     for (Py_ssize_t i = 0; i < size-1; i++) {
-        if (instructions[i].op.code == GET_ITER) {
+        int opcode = instructions[i].op.code;
+        if (opcode == GET_ITER) {
             fixup_getiter(&instructions[i], flags);
         }
         i += _PyOpcode_Caches[opcode];

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1 @@`
	`1`	`+Fix build error if specialization is disabled.`
Original file line number	Diff line number	Diff line change
`@@ -113,7 +113,8 @@ _PyCode_Quicken(_Py_CODEUNIT *instructions, Py_ssize_t size, int enable_counters`
`113`	`113`	`}`
`114`	`114`	`#else`
`115`	`115`	`for (Py_ssize_t i = 0; i < size-1; i++) {`
`116`		`- if (instructions[i].op.code == GET_ITER) {`
	`116`	`+ int opcode = instructions[i].op.code;`
	`117`	`+ if (opcode == GET_ITER) {`
`117`	`118`	`fixup_getiter(&instructions[i], flags);`
`118`	`119`	`}`
`119`	`120`	`i += _PyOpcode_Caches[opcode];`