[PATCH] D63032: [X86] When promoting i16 compare with immediate to i32, try to use sign_extend for eq/ne if the input is truncated from a type with enough sign its.

[Dávid Bolvanský via Phabricator via llvm-commits]

xbolva00 added a comment.

Maybe similar opportunity? But not sure if improvement..

char c() {

  return 11;

}

Clang
 mov al, 11
GCC and ICC
 mov eax 11


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  https://reviews.llvm.org/D63032/new/

https://reviews.llvm.org/D63032