https://github.com/python/cpython/commit/71dea74865a4f0e065e3dfc1acc70f7eee4f659e
commit: 71dea74865a4f0e065e3dfc1acc70f7eee4f659e
branch: main
author: Tomas R. <[email protected]>
committer: Fidget-Spinner <[email protected]>
date: 2025-05-23T20:48:45+08:00
summary:
gh-131798: Small improvements to `remove_unneeded_uops` (GH-134554)
Improve remove_unneeded_uops
files:
M Python/optimizer_analysis.c
diff --git a/Python/optimizer_analysis.c b/Python/optimizer_analysis.c
index 851e1efa0497af..6a7df233819b9c 100644
--- a/Python/optimizer_analysis.c
+++ b/Python/optimizer_analysis.c
@@ -558,6 +558,7 @@ const uint16_t op_without_push[MAX_UOP_ID + 1] = {
const bool op_skip[MAX_UOP_ID + 1] = {
[_NOP] = true,
[_CHECK_VALIDITY] = true,
+ [_CHECK_PERIODIC] = true,
[_SET_IP] = true,
};
@@ -617,7 +618,7 @@ remove_unneeded_uops(_PyUOpInstruction *buffer, int
buffer_size)
while (op_skip[last->opcode]) {
last--;
}
- if (op_without_push[last->opcode]) {
+ if (op_without_push[last->opcode] &&
op_without_pop[opcode]) {
last->opcode = op_without_push[last->opcode];
opcode = buffer[pc].opcode = op_without_pop[opcode];
if (op_without_pop[last->opcode]) {
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