search for: 1f2e1c8b

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2016 Mar 18
4
Redundant load in llvm's codegen compares to gcc when accessing escaped pointer?
1. Same question as David, why &c - 8 is invalid? Is it related to below statements In C99 standard? 6.5.3.3: "Among the invalid values for dereferencing a pointer by the unary * operator are a null pointer, an address inappropriately aligned for the type of object pointed to, and the address of an object after the end of its lifetime." 2. We are trying to preserve 1st load and