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| author | Sam Gross <colesbury@gmail.com> | 2025-01-23 09:26:25 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2025-01-23 09:26:25 (GMT) |
| commit | a10f99375e7912df863cf101a38e9703cfcd72f1 (patch) | |
| tree | 7909c7896fe256427c1149d2416fb7912ad3ba48 /Python/flowgraph.c | |
| parent | d7d066c3ab6842117f9e0fb1c9dde4bce00fa1e3 (diff) | |
| download | cpython-a10f99375e7912df863cf101a38e9703cfcd72f1.zip cpython-a10f99375e7912df863cf101a38e9703cfcd72f1.tar.gz cpython-a10f99375e7912df863cf101a38e9703cfcd72f1.tar.bz2 | |
Revert "GH-128914: Remove conditional stack effects from `bytecodes.c` and the code generators (GH-128918)" (GH-129202)
The commit introduced a ~2.5-3% regression in the free threading build.
This reverts commit ab61d3f4303d14a413bc9ae6557c730ffdf7579e.
Diffstat (limited to 'Python/flowgraph.c')
| -rw-r--r-- | Python/flowgraph.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/Python/flowgraph.c b/Python/flowgraph.c index 3f8d9db..24561c1 100644 --- a/Python/flowgraph.c +++ b/Python/flowgraph.c @@ -1836,6 +1836,12 @@ optimize_basic_block(PyObject *const_cache, basicblock *bb, PyObject *consts) INSTR_SET_OP0(inst, NOP); } break; + case LOAD_GLOBAL: + if (nextop == PUSH_NULL && (oparg & 1) == 0) { + INSTR_SET_OP1(inst, LOAD_GLOBAL, oparg | 1); + INSTR_SET_OP0(&bb->b_instr[i + 1], NOP); + } + break; case COMPARE_OP: if (nextop == TO_BOOL) { INSTR_SET_OP0(inst, NOP); |