diff options
| author | Sam Gross <colesbury@gmail.com> | 2025-01-23 04:26:25 -0500 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2025-01-23 09:26:25 +0000 |
| commit | a10f99375e7912df863cf101a38e9703cfcd72f1 (patch) | |
| tree | 7909c7896fe256427c1149d2416fb7912ad3ba48 /Python/optimizer.c | |
| parent | d7d066c3ab6842117f9e0fb1c9dde4bce00fa1e3 (diff) | |
| download | cpython-a10f99375e7912df863cf101a38e9703cfcd72f1.tar.gz cpython-a10f99375e7912df863cf101a38e9703cfcd72f1.zip | |
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/optimizer.c')
| -rw-r--r-- | Python/optimizer.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/Python/optimizer.c b/Python/optimizer.c index b91caf11ffa..9beb47246eb 100644 --- a/Python/optimizer.c +++ b/Python/optimizer.c @@ -1274,7 +1274,10 @@ uop_optimize( for (int pc = 0; pc < length; pc++) { int opcode = buffer[pc].opcode; int oparg = buffer[pc].oparg; - if (oparg < _PyUop_Replication[opcode]) { + if (_PyUop_Flags[opcode] & HAS_OPARG_AND_1_FLAG) { + buffer[pc].opcode = opcode + 1 + (oparg & 1); + } + else if (oparg < _PyUop_Replication[opcode]) { buffer[pc].opcode = opcode + oparg + 1; } else if (is_terminator(&buffer[pc])) { |