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92959
2018 Feb 01
2
llvm.memcpy for struct copy
On 2/1/2018 2:03 AM, David Chisnall via llvm-dev wrote:
> In contrast, the padding between fields in non-packed structs
> disappears as soon as SROA runs. This can lead to violations of C
> semantics, where padding fields should not change (because C defines
> bitwise comparisons on structs using memcmp). This can lead to subtly
> different behaviour in C code depending on the