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-rw-r--r--Python/optimizer_analysis.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/Python/optimizer_analysis.c b/Python/optimizer_analysis.c
index 0e45bd8..bbddbc8 100644
--- a/Python/optimizer_analysis.c
+++ b/Python/optimizer_analysis.c
@@ -301,6 +301,11 @@ remove_globals(_PyInterpreterFrame *frame, _PyUOpInstruction *buffer,
#define STACK_LEVEL() ((int)(stack_pointer - ctx->frame->stack))
+#define STACK_SIZE() ((int)(ctx->frame->stack_len))
+
+#define WITHIN_STACK_BOUNDS() \
+ (STACK_LEVEL() >= 0 && STACK_LEVEL() <= STACK_SIZE())
+
#define GETLOCAL(idx) ((ctx->frame->locals[idx]))