1aaea279e5
This is a simple error in the const-prop rules: uextend was not masking iconst's u64 immediate when extending from i32 to i64. Arguably an iconst.i32 should not have nonzero bits in the upper 32 of its immediate, but that's a separate design question. For now, if our invariant is that the upper bits are ignored, then it is required to mask the bits when const-evaling a `uextend`. Fixes #5047.
This crate contains the core Cranelift code generator. It translates code from an intermediate representation into executable machine code.