"查了一下,不是对 C/C++ 的。-fbounds-check For front-ends that support it, generate additional code to check that indices used to access arrays are within the de..."
"一段解析 html 的代码,现象是开 -O2 时会 core他怀疑是优化出了问题,因为p一个局部变量时内容不对,我说这种可能性微乎其微。一般都是越界造成的,遂拍查了一下。
排查步骤:1. 让代码core,然后反汇编,找出该局部变量被优化到哪里了,发现是 edi 寄存器 p (char*)$edi,正常,证明优化没问..."
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