GH-104584: Fix incorrect uoperands (GH-107513) · python/cpython@5e584eb · GitHub

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brandtbucher

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GH-104584: Fix incorrect uoperands (GH-107513)

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+4-1Lines changed: 4 additions & 1 deletion

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• Misc/NEWS.d/next/Core and Builtins
  • 2023-07-29-22-01-30.gh-issue-104584.tINuoA.rst
• Python
  • optimizer.c

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‎Misc/NEWS.d/next/Core and Builtins/2023-07-29-22-01-30.gh-issue-104584.tINuoA.rst‎

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+2Lines changed: 2 additions & 0 deletions

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Original file line number	Diff line number	Diff line change
@@ -0,0 +1,2 @@
	1	+ Fix an issue which caused incorrect inline caches to be read when running
	2	+ with :envvar:`PYTHONUOPS` or :option:`-X uops <-X>` enabled.

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‎Python/optimizer.c‎

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+2-1Lines changed: 2 additions & 1 deletion

Original file line number	Diff line number	Diff line change
@@ -579,7 +579,8 @@ translate_bytecode_to_trace(
579	579	for (int i = 0; i < nuops; i++) {
580	580	oparg = orig_oparg;
581	581	uint64_t operand = 0;
582		- int offset = expansion->uops[i].offset;
	582	+ // Add one to account for the actual opcode/oparg pair:
	583	+ int offset = expansion->uops[i].offset + 1;
583	584	switch (expansion->uops[i].size) {
584	585	case OPARG_FULL:
585	586	if (extras && OPCODE_HAS_JUMP(opcode)) {

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