8f34d2dc59
The current code doesn't correctly handle the case where `ExtendOp::UXTW` has as source, a constant-producing insn that produces a negative (32-bit) value. Then the value is incorrectly sign-extended to 64 bits (in fact, this has already been done by `ctx.get_constant(insn)`), whereas it needs to be zero extended. The obvious fix, done here, is just to force bits 63:32 of the extension to zero, hence zero-extending it.
This crate contains the core Cranelift code generator. It translates code from an intermediate representation into executable machine code.