gh-116772: Cache getenv result in optimizer.c to reduce calls
#126439
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| static int uop_optimize_initialized = 0; | ||
| static int uop_optimize_flag = 0; |
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This isn't thread safe or subinterpreter safe. You might want to store the value in a PyThreadState / PyInterpreterState in pylifecycle.c instead.
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This is my first time PR for part C, which looks like it might be a small improvement, hopefully I'm not doing anything wrong🙂
About 0.5% faster? (from issue)
getenvon every optimization run #116772