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Revert "GH-128914: Remove conditional stack effects from bytecodes.c and the code generators (GH-128918)" (GH-129202)

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The commit introduced a ~2.5-3% regression in the free threading build.

This reverts commit ab61d3f430.
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Sam Gross 2025-01-23 04:26:25 -05:00 • committed by GitHub
parent d7d066c3ab
commit a10f99375e
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44 changed files with 1679 additions and 1460 deletions
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3
Include/internal/pycore_magic_number.h
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@ -267,7 +267,6 @@ Known values:
Python 3.14a4 3612 (Add POP_ITER and INSTRUMENTED_POP_ITER)
Python 3.14a4 3613 (Add LOAD_CONST_MORTAL instruction)
Python 3.14a5 3614 (Add BINARY_OP_EXTEND)
Python 3.14a5 3615 (Remove conditional stack effects)
Python 3.15 will start with 3650
@ -280,7 +279,7 @@ PC/launcher.c must also be updated.
*/
#define PYC_MAGIC_NUMBER 3615
#define PYC_MAGIC_NUMBER 3614
/* This is equivalent to converting PYC_MAGIC_NUMBER to 2 bytes
(little-endian) and then appending b'\r\n'. */
#define PYC_MAGIC_NUMBER_TOKEN \