[PATCH] D35594: [GISel]: ConstantFold operations when building MIR

[Quentin Colombet via Phabricator via llvm-commits]

qcolombet added a comment.

> Disabled constant folding cast instructions as MIR currently doesn't infer legality of constants of type that it creates.

Would it make sense to have a mode in the builder where combines are allow or not, just not type changes?
What I am thinking is every pass before legalization would run in combine mode and every pass after would run in non-combine mode.


https://reviews.llvm.org/D35594