Reset state that changes when we handle different basic blocks.

Synopsis

Declared in <llvm/CodeGen/CodeGenCommonISel.h>

void
resetPerBBState();

Description

This currently includes:

1. The specific basic block we are generating a stack protector for (ParentMBB).

2. The successor machine basic block that will contain the tail of parent mbb after we create the stack protector check (SuccessMBB). This BB is visited only on stack protector check success.

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