[PATCH] D88396: [X86] Replace movaps with movups when avx is enabled.

[LuoYuanke via Phabricator via llvm-commits]

LuoYuanke marked 2 inline comments as done.
LuoYuanke added inline comments.


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Comment at: llvm/lib/Target/X86/X86MovapsToMovups.cpp:13
+/// If the address is not aligned, movups can run without raising exception.
+/// So movups is prefered.
+//
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RKSimon wrote:
> "So unaligned load/stores may be preferred if hardware exceptions can't be trusted."?
Sometimes user prefer inefficient unaligned load/store rather than hardware exceptions when address is unaligned. We provide the opportunity for user to choose the behavior. 


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  https://reviews.llvm.org/D88396/new/

https://reviews.llvm.org/D88396